{"title":"Ring Magnets","description":null,"products":[{"product_id":"neodymium-ring-magnet-od100-x-h3-x-id70-mm-n35","title":"Neodymium Ring Magnet OD100mm x H3mm | Hole 70mm N35","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 100mm (OD) x 70mm (ID) x 3mm (H) | N35\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 100mm Outside Diameter x 70mm Inside Diameter x 3mm Height | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a large-diameter, low-profile Rare Earth magnet designed for industrial, engineering, manufacturing and custom magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this permanent magnet combines strong magnetic material properties with a distinctive annular design, featuring a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mm outside diameter, 70mm central hole and 3mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts wide, circular profile provides a substantial ring-shaped magnetic surface while maintaining a slim overall height. This makes it particularly useful for applications requiring a large-diameter magnet with minimal installation depth.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e70mm centre opening\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows the magnet to be positioned around compatible shafts, tubes, housings and mechanical components, making it a practical choice for custom magnetic assemblies and specialised engineering projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike solid Neodymium disc magnets, the ring-shaped construction provides a central opening that can accommodate mounting components or allow clearance for other parts within an assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a balance of magnetic performance and material characteristics, making it suitable for a broad range of permanent magnet applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are recognised for their high magnetic energy density, allowing them to produce substantial magnetic fields relative to their size.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe large \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mm external diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e makes this magnet particularly relevant to custom equipment, magnetic coupling systems, industrial prototypes and applications requiring a wide annular magnetic component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt just \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the magnet has a low-profile design that may be useful where available installation space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts broad ring geometry also makes it suitable for research and development projects where magnetic field distribution, mounting configuration and component clearance are important design considerations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified and should be confirmed before use in applications where pole orientation is critical.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mm Neodymium ring magnet, large Rare Earth ring magnet, N35 magnetic ring, thin Neodymium washer magnet, 70mm hole Neodymium magnet or large-diameter NdFeB ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is suitable for a range of specialised magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing a custom magnetic assembly, manufacturing industrial equipment, designing a magnetic coupling system or sourcing a large-diameter Rare Earth component, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets N35 Neodymium Ring Magnet – 100mm OD x 70mm ID x 3mm H\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a versatile combination of magnetic performance, large ring geometry and slim construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN35 Neodymium Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Permanent Rare Earth magnetic material suitable for industrial and engineering applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e100mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Large-diameter ring design for specialised assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e70mm Inside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Generous central opening for compatible mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e3mm Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Slim, low-profile construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e15mm Nominal Radial Wall Width:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Substantial annular ring surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-energy permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing \/ Washer Shape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for applications requiring a large central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Does not require external electrical power.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLarge Annular Surface:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides a wide ring-shaped face.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCustom Engineering Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for specialised magnetic assemblies and prototypes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Mounting Options:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can be integrated into appropriately designed housings and retaining systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIndustrial Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to manufacturing, research, mechanical systems and custom equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for engineered applications requiring a large-diameter ring magnet with a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIndustrial Equipment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMay be incorporated into specialised machinery and industrial systems where magnetic performance has been verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Coupling Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially suitable for custom magnetic coupling arrangements where the magnetisation direction and magnetic field characteristics match the design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for mechanical assemblies requiring a large annular magnetic component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Manufacturing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCan be incorporated into custom products requiring a wide, low-profile magnetic ring.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Mounting Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 70mm centre opening allows clearance for compatible shafts, housings, tubes and mounting components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEngineering Prototypes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for developing and testing custom magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eResearch and Development\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for experimental applications involving magnetic field behaviour and large ring geometries.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Fixtures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMay be used in appropriately designed fixtures and holding assemblies where performance has been independently verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Industrial Projects\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for specialised applications requiring a large Neodymium ring magnet with minimal installation depth.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose a Large N35 Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eLarge 100mm Outside Diameter\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe wide circular profile makes this magnet suitable for applications requiring a substantial annular magnetic component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eGenerous 70mm Central Opening\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe large internal hole provides clearance for compatible mechanical parts and mounting systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSlim 3mm Profile\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe low-profile construction is useful for assemblies where installation depth is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 Neodymium offers strong magnetic material properties compared with many conventional magnet materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe annular shape allows integration into custom magnetic assemblies and mechanical systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet generates its own magnetic field without batteries or electricity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePermanent Rare Earth Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Washer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInside Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e70mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentre Hole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e70mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness (H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100mm OD x 70mm ID x 3mm H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Radial Wall Width\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Annular Face Area\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4,005.5mm²\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Magnet Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12,016.6mm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Magnet Volume (cm³)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.02cm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCustom Magnetic Assemblies, Industrial Equipment and Engineering Projects\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOutside Diameter – 100mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures 100mm across its outer circular edge.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis determines the external space required for installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInside Diameter – 70mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening measures 70mm in diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis allows the magnet to be positioned around compatible mechanical components or used in assemblies requiring a large central clearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 3mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures 3mm thick.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis slim construction makes it suitable for low-profile applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eNominal Radial Wall Width – 15mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial wall width is calculated as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e(100mm − 70mm) ÷ 2 = 15mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis represents the nominal distance between the inner and outer circular edges.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Annular Face Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped face has an approximate area of:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e4,005.5mm² (40.06cm²)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Magnet Volume\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBased on the specified dimensions, the approximate magnet volume is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e12,016.6mm³ (12.02cm³)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese calculations describe the magnet's geometry and do not represent magnetic pull force or surface field strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does N35 Mean?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eN35 identifies the magnetic material grade of the Neodymium magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe N35 designation refers to the material's maximum magnetic energy product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35 is a commonly used Neodymium grade suitable for a wide variety of permanent magnet applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBenefits of N35 Neodymium\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh magnetic energy density\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePermanent magnetic performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for compact and large-format magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVersatile industrial applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUseful for custom magnetic assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for engineering and manufacturing projects\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The N35 grade does not indicate a specific pull force, surface Gauss reading or maximum operating temperature for every finished magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does a Neodymium Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium ring magnets are manufactured from Neodymium Iron Boron and magnetised to create a persistent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen positioned near compatible ferromagnetic materials, the magnet experiences magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen placed near another permanent magnet, attraction or repulsion depends on the orientation of the magnetic poles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening allows the magnet to be integrated into compatible mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe exact magnetic field distribution depends on the magnetisation direction, which has not been specified for this product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eLarge Ring Magnets vs Solid Disc Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSolid Neodymium Disc Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAnnular \/ Ring\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSolid Circular Disc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Clearance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllows Central Clearance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo Central Clearance\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Options\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable for Custom Ring Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable for Solid Disc Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Field Pattern\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Magnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Magnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Assemblies, Couplings, Custom Equipment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGeneral Magnetic Holding and Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eThe correct magnet shape depends on the required geometry, mounting method and magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of Large-Diameter Neodymium Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWide Annular Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 100mm outside diameter provides a large ring-shaped magnetic component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Mechanical Clearance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 70mm internal opening allows clearance for compatible mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-Profile Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 3mm thickness is useful for shallow mounting locations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 Neodymium provides strong magnetic material properties.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Engineering Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for custom assemblies, industrial equipment and research projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Function\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo batteries or electricity are required to maintain the magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install a Large Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify the 100mm outside diameter, 70mm inside diameter and 3mm thickness.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Magnetisation Direction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnetic pole orientation required for the application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, chips or coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Mounting Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the housing or mounting surface is clean and suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not force the magnet into an undersized opening or housing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect a Suitable Mounting Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use an appropriate adhesive, retaining system or engineered housing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSupport the Magnet Evenly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid point loading or bending stresses across the thin ring.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eControl Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep steel objects and other magnets clear during installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest Magnetic Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify magnetic attraction and holding strength under actual operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Finished Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm mechanical stability and correct positioning.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Large, thin Neodymium ring magnets are brittle and may crack or shatter if subjected to bending, impact or uneven mechanical pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 determines the material's magnetic energy characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnet Dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 100mm OD, 70mm ID and 3mm height influence magnetic field distribution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe orientation of the magnetic poles affects attraction and magnetic field characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps between the magnet and a steel surface can significantly reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Surface\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel thickness, composition and surface condition influence holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eElevated temperatures can affect magnetic properties.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eExternal Magnetic Fields\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eStrong external magnetic fields may interfere with operation or contribute to demagnetisation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCoating and Mechanical Condition\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDamage to the magnet or its coating may affect long-term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent cracking or chipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid impact with steel objects or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not bend or flex the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill, cut or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid excessive mechanical pressure during installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSupport the magnet evenly during handling and mounting.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep the magnet clean and free from metal filings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid prolonged moisture exposure unless environmental suitability has been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore magnets separately or with suitable protective spacing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for damage before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify magnetic performance after installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract ferromagnetic objects unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep fingers and skin clear when positioning magnets near steel components or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can chip, crack or shatter under impact or excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLarge Thin Ring Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 3mm thickness makes the magnet particularly vulnerable to bending stresses and uneven loading.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers, implanted medical devices and magnetically sensitive medical equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with certain electronic devices, sensors and magnetic storage media.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature of this specific magnet has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent testing is required before use where magnetic failure could create a safety risk.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat size is this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mm outside diameter x 70mm inside diameter x 3mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat magnetic grade is this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a Rare Earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium magnets are a type of Rare Earth permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N35 mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 identifies the magnetic material grade and its maximum magnetic energy product classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outside diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outside diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the inside diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe inside diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e70mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the thickness?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the radial wall width?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal radial wall width is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e15mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does this magnet have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe coating has not been specified in the supplied product information.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA specific pull-force rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss rating?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA surface Gauss measurement has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet for industrial equipment?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided the magnetic performance and operating conditions have been verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet for magnetic coupling?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially. Suitability depends on the magnetic field configuration and mechanical design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I mount this magnet around a shaft?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially. The 70mm internal opening may accommodate a compatible shaft or housing, but mounting tolerances and mechanical retention must be verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for custom engineering projects?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Its large ring geometry makes it useful for specialised assemblies and prototypes.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill or machine this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets should not be drilled, cut or machined using ordinary workshop methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes this magnet require electricity?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. It is a permanent magnet and generates its own magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be used outdoors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet fragile?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium magnets are brittle, and the large 100mm diameter combined with a 3mm thickness requires careful handling.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the advantage of the 70mm centre hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe large opening provides clearance for compatible mechanical components and mounting systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the advantage of the 3mm thickness?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe slim profile is suitable for applications with limited installation depth.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitability must be independently verified through appropriate engineering assessment and testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN35 Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Washer Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Coupling Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge-Diameter Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 100mm OD x 70mm ID x 3mm H | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a large-diameter, low-profile Rare Earth permanent magnet designed for specialised engineering and industrial applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 Neodymium material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and a wide annular design with a 70mm central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecific magnetisation direction, coating, pull force, surface Gauss and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on magnet geometry, magnetisation direction, temperature, air gaps, receiving materials and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Large, thin Neodymium ring magnets are brittle and require careful handling. Avoid bending, impact and uneven mechanical loading. Independently verify performance before use in demanding or safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046170244,"sku":"R-OD100H3ID70-N35","price":147.64,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od100h3id70-n35.png?v=1752624839"},{"product_id":"neodymium-ring-magnet-od10-x-h1-5x-id5-mm-n42","title":"Neodymium Ring Magnet OD10mm x H1.5mm | Hole 5mm N42","description":"\u003cp\u003eNeodymium Ring Magnets\u003cbr\u003e\u003cbr\u003eOutside Diameter: 10mm (0.393\" in.)\u003cbr\u003eHeight: 1.5mm (0.059\" in.)\u003cbr\u003eInside Diameter: 5mm (0.197\" in.)\u003cbr\u003eGrade: N42\u003cbr\u003eCoating: Nickel (Ni)\u003cbr\u003eMagnetized Direction: Through height - 1.5mm\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eNeodymium Ring magnets are used in many modern-day products and appliances. Permanent magnets and their magnetic fields can be used to operate electronic devices and sound and communications equipment. Other uses include computers, smartphones, televisions, speakers and electric motors. \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eRing-shaped magnets are sometimes applied to pipes that contain fluid to descale or modify the passing contents. In less commercial environments, Neodymium ring magnets make handy hanging or attachment mechanisms for garments and coverings.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe hole in the strong magnet ring makes it easy to secure in place with wire, string or sewing thread. Ring magnets are sometimes paired with a steel washer to form a closure system on each side of an opening. Small Neodymium ring magnets are also popular with scale model makers and those who want to add a magnetic aspect to their crafts and hobbies.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046203012,"sku":"R-OD10H1.5ID5","price":3.69,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od10h1.5id5.jpg?v=1752624838"},{"product_id":"neodymium-ring-magnet-od12-x-h2-x-id5-mm-n35","title":"Neodymium Ring Magnet OD12mm x H2mm | Hole 5mm N35","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eOutside Diameter: 12mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eHeight: 2mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eInside Diameter: 5mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eGrade: N35\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eCoating: Nickel (Ni)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eMagnetized Direction: Through height – 2mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003ePull force: 1.115kg\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eSurface field: \u003cspan style=\"color: #ac020e; font-weight: bold;\"\u003e-1,865 \u003c\/span\u003e gauss\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Neodymium ring magnets, also known as rare earth rings, are available in various sizes and a variety of grades. The higher the grade the greater the pull force for any given size of magnet. The N52 grade is the strongest grade with the highest holding capacity. The amound of magnetic material present, particularly in the distance between the North and South poles (thickness or height dimension) will also determine the strength of pull force. For axially magnetised magnets, which is the orientation of most magnets, thicker magnets have more magnetic material between the north and south poles which in turn generates more magnetic holding power. \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe small but strong magnetic ring has many uses. It can be easily attached to ferrous or non-ferrous shafts or rods with a similar inside diameter to make them magnetic or compatible with steel. Small ring magnets can be used to magnetically store or hold small metal tools and implements used by hobbyists, fabricators sculptors or artists.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046235780,"sku":"R-OD12H2ID5-N35","price":5.69,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od12h2id5-n35.png?v=1752624836"},{"product_id":"neodymium-ring-magnet-od13-x-h2-x-id5-mm-n35","title":"Neodymium Ring Magnet OD13mm x H2mm | Hole 5mm N35","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eNeodymium Ring Magnets \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eOutside Diameter: 13mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eHeight: 2mm \u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eInside Diameter: 5mm \u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eGrade: N35\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eCoating: Nickel (Ni)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eMagnetized Direction: Through height - 2mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003ePull force: 1.27kg\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eSurface field: \u003cspan style=\"color: #ac020e; font-weight: bold;\"\u003e-1,999 \u003c\/span\u003e gauss\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThis neodymium magnetic ring is also known as a rare earth ring magnet. It has an outside diameter of 13mm and inside diameter of 5mm and a height of 2mm. Its magnetic flux reading is 1999 Gauss and it has a pull force or magnet force of 1.27 kilos. Magnetic properties of this strong magnet ring include an operating temperature of up to 80 degrees celsius.This Neodymium magnet has a Nickel coating which is the most common coating on Rare Earth magnets.This protects them and will minimise corrosion. \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eRing magnets have a wide range of uses. They can be located on a round shaft or round pin that matches the rings inside diameter. The small hole in the centre of a ring magnet also makes it simple to attach to another surface with thread or a length of wire. \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eWhen used as pairs and positioned with opposite poles, they can be used as a closure if placed on either side of a garment. Another example of use is to magnetically join components of a scale model or other consumer products.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eOther modern uses of the Neodymium ring magnets include wind turbines, power tools, electric generators, electric motors, motor vehicle ABS systems, and all sound amplification and communication equipment.  \u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046268548,"sku":"R-OD13H2ID5-N35","price":5.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od13h2id5-n35.png?v=1752624835"},{"product_id":"neodymium-ring-magnet-od130-x-h15-x-id110-mm-n35","title":"Neodymium Ring Magnet OD130mm x H15mm | Hole 110mm N35","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\" data-end=\"57\" data-start=\"0\" data-section-id=\"138avet\"\u003eNeodymium Ring Magnet – OD130mm x H15mm | ID110mm | N35\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-end=\"621\" data-start=\"59\"\u003eThe \u003cstrong data-end=\"121\" data-start=\"63\"\u003eNeodymium Ring Magnet – OD130mm x 15mm | ID110mm | N35\u003c\/strong\u003e is an extra-large, high-performance \u003cstrong data-end=\"184\" data-start=\"158\"\u003erare earth ring magnet\u003c\/strong\u003e engineered for applications requiring exceptional magnetic strength across a wide circular surface. Manufactured from premium \u003cstrong data-end=\"342\" data-start=\"311\"\u003eN35 grade neodymium (NdFeB)\u003c\/strong\u003e, this powerful permanent magnet combines a large \u003cstrong data-end=\"416\" data-start=\"392\"\u003e130mm outer diameter\u003c\/strong\u003e, \u003cstrong data-end=\"442\" data-start=\"418\"\u003e110mm inner diameter\u003c\/strong\u003e, and \u003cstrong data-end=\"466\" data-start=\"448\"\u003e15mm thickness\u003c\/strong\u003e to deliver outstanding holding force, magnetic coupling, and positioning performance for industrial, commercial, scientific, and engineering applications.\u003c\/p\u003e\n\u003cp data-end=\"1049\" data-start=\"623\"\u003eWith its substantial ring profile, this magnet is ideally suited for custom machinery, magnetic couplings, lifting systems, separation equipment, robotics, automation, research projects, and OEM manufacturing. The large central \u003cstrong data-end=\"865\" data-start=\"851\"\u003e110mm bore\u003c\/strong\u003e allows the magnet to fit around shafts, pipes, bearings, housings, or other cylindrical components, making it an excellent choice where a standard disc or block magnet cannot be used.\u003c\/p\u003e\n\u003cp data-end=\"1382\" data-start=\"1051\"\u003eThe magnet is \u003cstrong data-end=\"1114\" data-start=\"1065\"\u003eaxially magnetised through its 15mm thickness\u003c\/strong\u003e, meaning the north and south poles are located on the two large flat circular faces. This configuration provides a strong, concentrated magnetic field for secure attachment to ferrous materials while maintaining excellent stability across the entire magnetic surface.\u003c\/p\u003e\n\u003cp data-end=\"1623\" data-start=\"1384\"\u003eFinished with a durable \u003cstrong data-end=\"1450\" data-start=\"1408\"\u003enickel (Ni-Cu-Ni) triple-layer coating\u003c\/strong\u003e, the magnet offers excellent protection against corrosion and everyday wear while maintaining a professional metallic finish suitable for demanding industrial environments.\u003c\/p\u003e\n\u003cp data-end=\"1908\" data-start=\"1625\"\u003eWhether you're building specialised equipment, designing magnetic fixtures, developing prototypes, or integrating powerful magnets into industrial systems, the \u003cstrong data-end=\"1839\" data-start=\"1785\"\u003eOD130mm x ID110mm x 15mm N35 Neodymium Ring Magnet\u003c\/strong\u003e delivers exceptional magnetic performance and long-term reliability.\u003c\/p\u003e\n\u003ch3 data-end=\"1926\" data-start=\"1910\" data-section-id=\"1iz91iu\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-end=\"2351\" data-start=\"1928\"\u003e\n\u003cli data-end=\"1979\" data-start=\"1928\" data-section-id=\"j1ecpd\"\u003ePremium \u003cstrong data-end=\"1979\" data-start=\"1938\"\u003eN35 grade neodymium rare earth magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2006\" data-start=\"1980\" data-section-id=\"1xkduzo\"\u003e\u003cstrong data-end=\"2006\" data-start=\"1982\"\u003e130mm outer diameter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-end=\"2033\" data-start=\"2007\" data-section-id=\"x3dl29\"\u003e\u003cstrong data-end=\"2033\" data-start=\"2009\"\u003e110mm inner diameter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-end=\"2054\" data-start=\"2034\" data-section-id=\"a7o54q\"\u003e\u003cstrong data-end=\"2054\" data-start=\"2036\"\u003e15mm thickness\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-end=\"2092\" data-start=\"2055\" data-section-id=\"gupcj2\"\u003eLarge ring design with central bore\u003c\/li\u003e\n\u003cli data-end=\"2135\" data-start=\"2093\" data-section-id=\"1r6b7vf\"\u003eAxially magnetised through the thickness\u003c\/li\u003e\n\u003cli data-end=\"2184\" data-start=\"2136\" data-section-id=\"1hgxbg7\"\u003ePowerful magnetic field across both flat faces\u003c\/li\u003e\n\u003cli data-end=\"2226\" data-start=\"2185\" data-section-id=\"173ooq3\"\u003eDurable nickel (Ni-Cu-Ni) plated finish\u003c\/li\u003e\n\u003cli data-end=\"2281\" data-start=\"2227\" data-section-id=\"wyzsfm\"\u003ePermanent magnet with long-lasting magnetic strength\u003c\/li\u003e\n\u003cli data-end=\"2351\" data-start=\"2282\" data-section-id=\"rxlgi1\"\u003eSuitable for industrial, commercial, OEM, and research applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2376\" data-start=\"2353\" data-section-id=\"xx0hya\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-end=\"2612\" data-start=\"2378\"\u003e\n\u003cli data-end=\"2398\" data-start=\"2378\" data-section-id=\"1sa1yao\"\u003eMagnetic couplings\u003c\/li\u003e\n\u003cli data-end=\"2421\" data-start=\"2399\" data-section-id=\"d4k3ep\"\u003eIndustrial machinery\u003c\/li\u003e\n\u003cli data-end=\"2442\" data-start=\"2422\" data-section-id=\"1mn6jmp\"\u003eAutomation systems\u003c\/li\u003e\n\u003cli data-end=\"2453\" data-start=\"2443\" data-section-id=\"g0eet1\"\u003eRobotics\u003c\/li\u003e\n\u003cli data-end=\"2485\" data-start=\"2454\" data-section-id=\"16kl8lw\"\u003eMagnetic separation equipment\u003c\/li\u003e\n\u003cli data-end=\"2517\" data-start=\"2486\" data-section-id=\"ts765t\"\u003ePrecision positioning systems\u003c\/li\u003e\n\u003cli data-end=\"2539\" data-start=\"2518\" data-section-id=\"1od4uuq\"\u003eScientific research\u003c\/li\u003e\n\u003cli data-end=\"2562\" data-start=\"2540\" data-section-id=\"zgdov5\"\u003eLaboratory equipment\u003c\/li\u003e\n\u003cli data-end=\"2582\" data-start=\"2563\" data-section-id=\"1qjcp7z\"\u003eOEM manufacturing\u003c\/li\u003e\n\u003cli data-end=\"2612\" data-start=\"2583\" data-section-id=\"3idn9g\"\u003eCustom engineering projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2627\" data-start=\"2614\" data-section-id=\"1qmgibc\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-end=\"2849\" data-start=\"2629\"\u003e\n\u003cli data-end=\"2640\" data-start=\"2629\" data-section-id=\"7d099e\"\u003eEngineers\u003c\/li\u003e\n\u003cli data-end=\"2660\" data-start=\"2641\" data-section-id=\"1qjcsvf\"\u003eOEM manufacturers\u003c\/li\u003e\n\u003cli data-end=\"2683\" data-start=\"2661\" data-section-id=\"scifcp\"\u003eIndustrial designers\u003c\/li\u003e\n\u003cli data-end=\"2708\" data-start=\"2684\" data-section-id=\"1f40aq3\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-end=\"2730\" data-start=\"2709\" data-section-id=\"chem9c\"\u003eRobotics developers\u003c\/li\u003e\n\u003cli data-end=\"2754\" data-start=\"2731\" data-section-id=\"tuv45w\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-end=\"2769\" data-start=\"2755\" data-section-id=\"10gwr6y\"\u003eUniversities\u003c\/li\u003e\n\u003cli data-end=\"2795\" data-start=\"2770\" data-section-id=\"18llj58\"\u003eScientific institutions\u003c\/li\u003e\n\u003cli data-end=\"2821\" data-start=\"2796\" data-section-id=\"gt1baa\"\u003eMachinery manufacturers\u003c\/li\u003e\n\u003cli data-end=\"2849\" data-start=\"2822\" data-section-id=\"773k4e\"\u003eProduct development teams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2896\" data-start=\"2851\" data-section-id=\"2iqejh\"\u003eWhy Choose a Large Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-end=\"3238\" data-start=\"2898\"\u003eNeodymium magnets are the strongest commercially available permanent magnets, making them ideal for applications requiring maximum magnetic performance in a compact assembly. The \u003cstrong data-end=\"3090\" data-start=\"3077\"\u003eN35 grade\u003c\/strong\u003e provides an excellent balance of magnetic strength, durability, and cost-effectiveness for a wide range of industrial and engineering applications.\u003c\/p\u003e\n\u003cp data-end=\"3559\" data-start=\"3240\"\u003eThe \u003cstrong data-end=\"3268\" data-start=\"3244\"\u003e130mm outer diameter\u003c\/strong\u003e combined with the \u003cstrong data-end=\"3309\" data-start=\"3287\"\u003e110mm central hole\u003c\/strong\u003e creates a large magnetic ring that can be integrated around shafts, pipes, bearings, rollers, or custom mechanical components. This design allows engineers to create efficient magnetic systems where conventional disc or block magnets are unsuitable.\u003c\/p\u003e\n\u003cp data-end=\"3896\" data-start=\"3561\"\u003eThe magnet's \u003cstrong data-end=\"3597\" data-start=\"3574\"\u003eaxial magnetisation\u003c\/strong\u003e ensures a powerful magnetic field across the two flat faces, making it ideal for magnetic clamping, holding, positioning, separation, and coupling applications. Combined with its corrosion-resistant nickel coating, this ring magnet delivers reliable long-term performance in demanding environments.\u003c\/p\u003e\n\u003ch3 data-end=\"3926\" data-start=\"3898\" data-section-id=\"nucr17\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-end=\"4371\" data-start=\"3928\"\u003e\n\u003cli data-end=\"3969\" data-start=\"3928\" data-section-id=\"11wbjya\"\u003e\n\u003cstrong data-end=\"3947\" data-start=\"3930\"\u003eProduct Type:\u003c\/strong\u003e Neodymium Ring Magnet\u003c\/li\u003e\n\u003cli data-end=\"4003\" data-start=\"3970\" data-section-id=\"1fqlth2\"\u003e\n\u003cstrong data-end=\"3985\" data-start=\"3972\"\u003eMaterial:\u003c\/strong\u003e Neodymium (NdFeB)\u003c\/li\u003e\n\u003cli data-end=\"4027\" data-start=\"4004\" data-section-id=\"j4nl5n\"\u003e\n\u003cstrong data-end=\"4023\" data-start=\"4006\"\u003eMagnet Grade:\u003c\/strong\u003e N35\u003c\/li\u003e\n\u003cli data-end=\"4045\" data-start=\"4028\" data-section-id=\"138gwy7\"\u003e\n\u003cstrong data-end=\"4040\" data-start=\"4030\"\u003eShape:\u003c\/strong\u003e Ring\u003c\/li\u003e\n\u003cli data-end=\"4078\" data-start=\"4046\" data-section-id=\"2l9tys\"\u003e\n\u003cstrong data-end=\"4072\" data-start=\"4048\"\u003eOuter Diameter (OD):\u003c\/strong\u003e 130mm\u003c\/li\u003e\n\u003cli data-end=\"4111\" data-start=\"4079\" data-section-id=\"wcu4l3\"\u003e\n\u003cstrong data-end=\"4105\" data-start=\"4081\"\u003eInner Diameter (ID):\u003c\/strong\u003e 110mm\u003c\/li\u003e\n\u003cli data-end=\"4142\" data-start=\"4112\" data-section-id=\"mim\"\u003e\n\u003cstrong data-end=\"4137\" data-start=\"4114\"\u003eThickness (Height):\u003c\/strong\u003e 15mm\u003c\/li\u003e\n\u003cli data-end=\"4211\" data-start=\"4143\" data-section-id=\"rdhtx3\"\u003e\n\u003cstrong data-end=\"4163\" data-start=\"4145\"\u003eMagnetisation:\u003c\/strong\u003e Axially Magnetised (through the 15mm thickness)\u003c\/li\u003e\n\u003cli data-end=\"4244\" data-start=\"4212\" data-section-id=\"1fmz6qi\"\u003e\n\u003cstrong data-end=\"4226\" data-start=\"4214\"\u003eCoating:\u003c\/strong\u003e Nickel (Ni-Cu-Ni)\u003c\/li\u003e\n\u003cli data-end=\"4264\" data-start=\"4245\" data-section-id=\"92n46\"\u003e\n\u003cstrong data-end=\"4260\" data-start=\"4247\"\u003eReusable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-end=\"4371\" data-start=\"4265\" data-section-id=\"k33gjj\"\u003e\n\u003cstrong data-end=\"4283\" data-start=\"4267\"\u003eApplication:\u003c\/strong\u003e Holding, coupling, positioning, magnetic separation, automation, and custom engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"4388\" data-start=\"4373\" data-section-id=\"rjcraw\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-end=\"4648\" data-start=\"4390\"\u003eThis is a \u003cstrong data-end=\"4434\" data-start=\"4400\"\u003every powerful neodymium magnet\u003c\/strong\u003e and should be handled with extreme care. Due to its size and magnetic strength, it can attract steel objects or other magnets with considerable force, creating pinch hazards and the potential for equipment damage.\u003c\/p\u003e\n\u003cp data-end=\"4824\" data-start=\"4650\"\u003eActual magnetic performance will vary depending on the thickness and condition of the mating steel surface, air gap, alignment, operating temperature, and application design.\u003c\/p\u003e\n\u003cp data-end=\"4965\" data-start=\"4826\"\u003eKeep this magnet away from pacemakers, medical implants, magnetic storage media, precision instruments, and sensitive electronic equipment.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"5271\" data-start=\"4967\"\u003eNeodymium magnets are \u003cstrong data-end=\"5009\" data-start=\"4989\"\u003ehard but brittle\u003c\/strong\u003e and may chip or crack if allowed to collide with other magnets or steel surfaces. Do not drill, cut, machine, or subject the magnet to heavy impact after manufacture. Use appropriate lifting methods and personal protective equipment when handling large magnets.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046301316,"sku":"R-OD130H15ID110-N35","price":179.34,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od130h15id110-n35.png?v=1752624834"},{"product_id":"neodymium-ring-magnet-od13-x-h5-x-id2-mm-n35","title":"Neodymium Ring Magnet OD13mm x H5mm  | Hole 2mm N35","description":"\u003cp\u003e\u003cstrong\u003eNeodymium Ring Magnets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePowerful Neodymium magnets have helped drive innovation and improve the performance and capabilities of many products and devices in a wide range of modern technologies. This includes the strong Neodymium ring shaped magnets that provide permanent magnetic holding power and have attraction abilities that benefit industries such as manufacturing, robotics, communications, mining, and energy production. As well as bonding with ferromagnetic materials, the North and South poles of strong rare earth ring magnets can influence electrical currents and often play an important role in the operation of reed switches and other sensing and safety orientated equipment. The permanent nature of magnetic hold means in most cases it is constantly available and this leads to high levels of reliability and resilience in the products that use it. Manufacturers of smartphones, laptop computers and most modern technologies incorporate strong rare earth magnetic rings into the design of these products where the simple, non-mechanical nature of magnetic hold and bonding is utilised to great benefit. Electric motors and wind powered generators also depend on Neodymium magnets to create and store electric energy.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046366852,"sku":"R-OD13H5ID2-N35","price":7.76,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od13h5id2-n35.png?v=1752624832"},{"product_id":"neodymium-ring-magnet-od15-x-h3-x-id10-mm-n42","title":"Neodymium Ring Magnet OD15mm x H3mm | Hole 10 mm N42","description":"\u003cp\u003e\u003cstrong\u003eNeodymium Ring Magnets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNeodymium Ring Magnets Ring-shaped magnets are popular with customers who like the increased attachment options they offer compared to their Disc or Block shaped relatives. In many applications, the central hole of Ring shaped magnets can be used to keep the magnet securely in the correct position. The hole can fit over pins, lugs or on shafts with a similar diameter to hold the ring magnet securely, while at the same time eliminating the need for fasteners and adhesives that can fail or prove less reliable over time. Fitting Neodymium ring magnets in this way means they can be more easily incorporated into the design and operation of many modern devices and electronic goods and can also be used to generate electrical energy or convert it into physical movement in the case of electric motors. The powerful nature of Neodymium means the magnetic fields of these magnets can penetrate through surfaces and exert magnetic influence from beneath the moulded plastic cases of computer equipment and other modern devices. Magnetic switches, sensors and microphones perform much more accurately and reliably when the magnets are attached in this way and the hard plastic casings of many of these electronic products also reduce the risk of the magnets inside becoming damaged or broken. The strong magnetic power of Neodymium is permanent and may never need to be replaced. This in turn gives these products a high level of efficiency and reliability.\u003cbr\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046399620,"sku":"R-OD15H3ID10","price":7.02,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/R-OD15H3ID10.png?v=1781863858"},{"product_id":"neodymium-ring-magnet-od15-x-h3-x-id5-mm-n42","title":"Neodymium Ring Magnet OD15mm x H3mm | Hole 5mm N42","description":"\u003cp\u003e\u003cstrong\u003eNeodymium Ring Magnets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePowerful Neodymium Ring magnets can be purchased online from the wide range of Frenergy magnetic products which also includes a range of Block and Disc shaped Neodymium magnets. The product range contains Ring magnets in various grades of strength and in a range of width and height dimensions. Another unique and important consideration to take into account when selecting a Ring shaped magnet is the inside diameter(ID) measurement which indicates the diameter of the hole in the middle of the ring. The size of the central hole can be an important factor in determining which method of attachment is used for the magnet in your particular application. Common methods of attachment for all strong rare earth magnets to non-ferrous materials include epoxy glues, brackets and sewing the magnet inside or into soft furnishings or fabrics. Ring magnets can also be held in position with placement over pins or lugs with the same ID dimensions. Commercial products such as electronic devices may employ this method by using plastic casings or moulded synthetic covers with suitable lugs for the Ring magnet to fit over. The magnets are then often used to perform as a magnetic closure device or to operate as magnetic electrical switches. The magnetic aspects of these commercial products give these items a more modern or futuristic feel that appeals to consumers and in many cases, improves their performance. Hobbyists or home-based businesses often use timber or other non-ferrous materials to provide the round lugs that the ring magnet sits on. The magnets can then be used to bond component parts together or to make artistic creations compatible with ferromagnetic surfaces. Screws, tie wire and bolts through the central hole are also commonly used options for attaching the versatile Neodymium Ring Magnets.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046432388,"sku":"R-OD15H3ID5","price":8.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/R-OD15H3ID5_sw__10387.jpg?v=1752624830"},{"product_id":"neodymium-ring-magnet-od19-4-x-h1-65-x-id10-mm-n38h","title":"Neodymium Ring Magnet OD19.4mm x H1.65mm | Hole 10mm | N38H | High Temperature ≤120ºC","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – OD19.4mm x H1.65mm | 10mm Hole | N38H | High Temperature 120°C\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 19.4mm OD x 1.65mm H | 10mm Hole | N38H\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-performance, ultra-thin Rare Earth magnet designed for precision applications requiring strong magnetic attraction and elevated-temperature resistance. Manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38H grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this compact ring magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e19.4mm outside diameter, 10mm central hole and 1.65mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with a specified \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emaximum operating temperature of 120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts slim, circular design makes it particularly suitable for applications where installation space is limited, while the central hole allows the magnet to be positioned around compatible shafts, pins, fasteners or other components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38H high-temperature magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides greater resistance to heat-induced demagnetisation than standard-temperature Neodymium grades, making this magnet a practical option for specialised industrial equipment, electronic assemblies, sensors, mechanical systems and engineering prototypes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're designing a compact magnetic assembly, developing a precision component or replacing an existing high-temperature ring magnet, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets N38H Neodymium Ring Magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a versatile solution for applications requiring a thin profile and reliable permanent magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature N38H Neodymium Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis ring magnet is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38H grade Neodymium\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a high-coercivity Rare Earth magnetic material designed for applications involving elevated operating temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eH designation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e identifies a high-temperature Neodymium grade with improved resistance to irreversible demagnetisation compared with conventional N-grade magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a specified \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emaximum operating temperature of 120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this magnet is suitable for appropriately designed applications operating at elevated temperatures within its rated limits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual temperature at which irreversible magnetic losses may occur depends on the magnet's geometry, magnetic circuit, external demagnetising fields and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor continuous operation near the maximum rated temperature, application-specific testing is recommended.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eUltra-Thin 1.65mm Profile\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWith a thickness of just \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1.65mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this Neodymium ring magnet is ideal for low-profile magnetic assemblies where space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts slim construction makes it suitable for compact electronic devices, sensor systems, precision mechanisms and custom magnetic components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe thin profile allows the magnet to be integrated into shallow housings and assemblies without significantly increasing overall component height.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, thin Neodymium magnets are brittle and must be handled carefully to avoid cracking, chipping or breaking during installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e19.4mm Outside Diameter with 10mm Central Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e19.4mm outside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm diameter central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, creating an annular magnetic structure suitable for specialised mounting arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening allows the magnet to be positioned around compatible shafts, pins and other cylindrical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt may also accommodate a suitable fastener or mounting feature, provided the magnet is not subjected to excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole is not countersunk, threaded or otherwise modified unless specifically stated.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eStrong Permanent Rare Earth Magnet\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are among the strongest commercially available permanent magnet materials relative to their size.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38H magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e combines high magnetic energy density with increased resistance to demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike electromagnets, this ring magnet does not require batteries, wiring or an external electrical power supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts permanent magnetic field makes it suitable for compact magnetic systems, positioning mechanisms, sensor applications and precision assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual pull force and magnetic field strength depend on the magnetisation direction, magnetic circuit and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIdeal for Precision Engineering and Custom Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe combination of a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e19.4mm outside diameter, 10mm hole and 1.65mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e makes this magnet particularly useful for applications requiring a compact ring-shaped magnetic component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePotential applications include magnetic sensors, positioning systems, electronic assemblies, small mechanical devices and product prototypes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening provides design flexibility for mounting around suitable components, while the high-temperature grade supports applications where conventional Neodymium magnets may be unsuitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e19.4mm Neodymium ring magnet, N38H high-temperature ring magnet, thin Rare Earth washer magnet, 10mm hole Neodymium magnet, annular Neodymium magnet or 120°C Rare Earth magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product offers a practical solution for specialised magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e19.4mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact ring design for precision assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e10mm Central Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for compatible shafts, pins and mounting arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1.65mm Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ultra-thin profile for space-restricted applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN38H Magnetic Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-coercivity Neodymium Rare Earth material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e120°C Maximum Operating Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for elevated-temperature applications within specified limits.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High magnetic energy density relative to its size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Practical for annular magnetic assemblies and custom components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for electronic, mechanical and precision applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Temperature Resistance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Improved resistance to demagnetisation compared with standard-temperature Neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Mounting Geometry:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Central hole provides flexibility for compatible assembly designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIndustrial and Engineering Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for custom magnetic systems and prototypes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into appropriately designed magnetic systems operating at temperatures up to the specified 120°C limit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Sensors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in compatible magnetic sensing systems where the ring geometry and magnetic field characteristics meet the sensor requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into compact mechanical assemblies requiring a thin permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectronic Components\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in suitable electronic devices and custom assemblies where permanent magnetic fields are required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Positioning Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into positioning and alignment mechanisms designed for the magnet's dimensions and magnetic characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Mechanical Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePosition around compatible shafts, pins or mounting components where the central hole provides a practical design advantage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Prototyping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEvaluate high-temperature Neodymium ring magnets in new product development and experimental designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIndustrial Equipment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in specialised machinery and magnetic components where the N38H grade meets the operating requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEducational and Research Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDemonstrate magnetic field behaviour, temperature effects and the properties of Rare Earth magnetic materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Magnetic Mechanisms\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into space-restricted mechanisms requiring a thin annular magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N38H High-Temperature Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eElevated-Temperature Capability\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe N38H grade is designed for improved resistance to demagnetisation, with a specified maximum operating temperature of 120°C.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eUltra-Thin Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 1.65mm thickness is suitable for low-profile magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eConvenient Central Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 10mm opening provides flexibility for mounting around compatible components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eStrong Rare Earth Magnetic Material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium offers high magnetic energy density compared with conventional Ferrite magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 19.4mm outside diameter is suitable for precision engineering and specialised magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eGenerates a magnetic field without batteries or electrical power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet – 19.4mm x 1.65mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePermanent Rare Earth Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e19.4mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInside Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.65mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN38H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTemperature Classification\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating \/ Plating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePrecision Assemblies, Sensors, Electronics and High-Temperature Magnetic Systems\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eDimensions, magnetic grade and maximum operating temperature are supplied as specified. Magnetisation direction, coating, pull force and surface Gauss have not been confirmed.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is an N38H Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAn \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38H Neodymium ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a permanent Rare Earth magnet manufactured from high-coercivity Neodymium Iron Boron magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38 designation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e identifies the approximate maximum energy product class of the magnetic material, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eH suffix\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e indicates enhanced resistance to demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN38H magnets are commonly selected for applications where a balance of magnetic energy density and temperature resistance is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring shape features a central opening, making it suitable for annular assemblies and mounting arrangements involving shafts, pins or other components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe exact magnetic field distribution depends on the magnetisation direction and surrounding magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does a Neodymium Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium ring magnets generate a permanent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen positioned near suitable ferromagnetic materials, such as iron or mild steel, the magnet produces an attractive force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTwo magnets can also attract or repel one another depending on their magnetic pole orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring geometry influences the distribution of magnetic material and the resulting magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction is particularly important in ring magnets because different configurations can produce significantly different magnetic field patterns.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor applications involving magnetic sensors, motors or precision assemblies, the required pole orientation should be confirmed before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN38H vs Standard Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eN38H Neodymium\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eStandard N-Grade Neodymium\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNdFeB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNdFeB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGrade Classification\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Coercivity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard-Coercivity\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTemperature Resistance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigher\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenerally Lower\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120°C for This Product\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCommonly Around 80°C, Depending on Grade and Design\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Energy Density\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVaries by Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePermanent Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eElectrical Power Required\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eElevated-Temperature Assemblies, Sensors, Industrial Components\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGeneral-Purpose Magnetic Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Maximum operating temperature is influenced by magnet geometry and magnetic circuit conditions. The 120°C rating should be verified under the intended operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install a Thin Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check that the 19.4mm outside diameter, 10mm hole and 1.65mm thickness match the assembly requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Magnetisation Direction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnetic pole orientation before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Temperature Requirements:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the application remains within the specified operating temperature limit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Mounting Surface:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clean the receiving component or housing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect a Suitable Fixing Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use an appropriate housing, retaining feature or compatible adhesive.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Mechanical Stress:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not force the brittle magnet onto an oversized shaft or into an undersized recess.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Align the magnet with the intended mounting arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSecure the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the assembly retains the magnet without excessive pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest Magnetic Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify operation under realistic mechanical and temperature conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, movement or other installation issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic pole orientation determines the magnetic field distribution and suitability for different applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eElevated temperatures can reduce magnetic output and may cause irreversible losses if the magnet's limits are exceeded.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Circuit Design\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel components, pole pieces and surrounding materials influence the magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSeparation between the magnet and a target reduces magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContact Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFull contact with suitable ferromagnetic material generally improves holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnet Thickness\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 1.65mm thickness influences the magnetic field distribution and available holding force.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eExternal Magnetic Fields\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eStrong opposing magnetic fields may affect performance, particularly at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Damage\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCracks, chips and fractures may affect the magnet's suitability for precision applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSuitable Magnetic Materials\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet can attract compatible ferromagnetic materials, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMild Steel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIron\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCarbon Steel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFerromagnetic Steel Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCertain Magnetic Stainless Steel Grades\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuitable Steel Housings and Magnetic Circuits\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eNon-Magnetic Materials\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet will not attach directly to non-ferromagnetic materials such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAluminium\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBrass\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTimber\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGlass\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePlastic\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAcrylic\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMost Austenitic Stainless Steel Grades\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole can be used for suitable mechanical mounting arrangements, but the magnet should not be subjected to excessive pressure or bending.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to avoid cracking or chipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not bend or apply excessive mechanical pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid allowing magnets to collide forcefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore in a clean, dry environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtect against moisture where coating suitability is unknown.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid exposure above the specified 120°C operating limit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from strong opposing magnetic fields where practical.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for damage before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse suitable protective packaging during transport.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from young children and sensitive electronic equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSafety Information\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSmall Magnet Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This magnet is small enough to be swallowed. Keep away from children and pets. Swallowed magnets can cause severe internal injuries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Thin Neodymium ring magnets can crack or fracture under impact, bending or excessive pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnets may snap towards steel objects or other magnets unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep away from pacemakers, implanted defibrillators and other magnetically sensitive medical devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with sensors, magnetic storage media and sensitive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limit:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not exceed the specified maximum operating temperature of 120°C. Actual temperature performance depends on the magnetic circuit and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Installation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not use the magnet as a load-bearing washer or subject it to excessive fastener compression.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent testing and appropriate engineering verification are required before use in safety-critical systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat are the dimensions of this ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt has a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e19.4mm outside diameter, 10mm central hole and 1.65mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat magnetic grade is it?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38H grade Neodymium\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N38H mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN38H identifies a high-coercivity Neodymium magnetic grade designed for improved resistance to demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe specified maximum operating temperature is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a high-temperature Neodymium magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. The N38H grade is intended for applications requiring greater temperature resistance than standard Neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it suitable for precision assemblies?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Its thin profile and central hole make it suitable for compatible precision assemblies and custom magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be mounted around a shaft?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided the shaft dimensions and mounting arrangement are suitable and do not place excessive mechanical stress on the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the hole threaded?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo thread specification has been supplied. The product is described as having a 10mm central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA countersunk hole has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been confirmed and should be verified before use in polarity-sensitive applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does it have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe coating has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe pull-force rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be used in electronic devices?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt may be suitable for compatible electronic assemblies where the magnetic field and temperature characteristics meet the design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be used in magnetic sensors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, depending on the required magnetic field strength, pole orientation and sensor configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it attach to stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly stainless steel grades that are sufficiently ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it attach to aluminium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Aluminium is not ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be glued into a housing?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided the adhesive is compatible with the magnet's coating, receiving material and operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be used above 120°C?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOperation above the specified maximum temperature is not recommended because irreversible magnetic losses may occur.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes it require electricity?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. It is a permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it crack during installation?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. The 1.65mm-thick Neodymium material is brittle and can fracture under mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN38H High-Temperature Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eThin Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Washer Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Temperature Neodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Sensor Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – OD19.4mm x H1.65mm | 10mm Hole | N38H | High Temperature 120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact, ultra-thin Rare Earth magnet designed for precision engineering, electronic assemblies, magnetic sensors and elevated-temperature applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e19.4mm outside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1.65mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38H magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with a specified \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emaximum operating temperature of 120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction, coating, pull force, surface Gauss and weight have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on the magnetic circuit, air gaps, operating temperature, external magnetic fields and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This magnet is thin, brittle and strongly magnetic. Handle carefully, avoid excessive mechanical stress and verify its suitability before permanent installation or use in critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046465156,"sku":"R-OD19.4H1.65ID10-N38H","price":7.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od19.4h1.65id10-n38h.png?v=1752624829"},{"product_id":"neodymium-ring-magnet-od24-x-h2-x-id7-mm-n35","title":"Neodymium Ring Magnet OD24mm x H2mm | Hole 7mm N35","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eOutside Diameter: 24mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eHeight: 2mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eInside Diameter: 7mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eGrade: N35\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eCoating: Nickel (Ni)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eMagnetized Direction: Axially\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003ePull force: 2.648kg\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: verdana,geneva;\"\u003e\u003cspan style=\"font-size: small;\"\u003eSurface field:\u003cspan style=\"color: #ac020e; font-weight: bold;\"\u003e -2,006 \u003c\/span\u003e gauss\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThis rare earth ring magnet has an outside diameter of 24mm, an inside diameter of 7mm and a thickness of 2mm.  With a grade of N35, this permanent magnet has a pull force or magnetic force of 2.6kg. The magnetic properties include a maximum operating temperature of up to 80 degrees celsius. \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eRare earth ring magnets are commonly used as components in manufacturing equipment. This permanent magnet is axially magnetised. The north and south poles are present through the flat faces of this strong magnetic ring. \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eMade from Neodymium, the strongest magnet material available on the market, it provides a super strong magnetic field. Rings are ideal for many applications that require precision. They can be fitted onto a shaft or inside a tube.  \u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe ring magnet can be used in speakers so it is often referred to as a speaker magnet. \u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046497924,"sku":"R-OD24H2ID7-N35","price":12.12,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od24h2id7-n35.png?v=1752624825"},{"product_id":"neodymium-ring-magnet-od24-x-h12-x-id5-mm-n45","title":"Neodymium Ring Magnet OD24mm x H12mm | Hole 5mm N45","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-4\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-4\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-4\" data-testid=\"conversation-turn-578\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"2723d4fc-c445-47b1-98a1-9f25a4ef3152\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"1uwddw4\" data-start=\"0\" data-end=\"54\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet – OD24mm x H12mm | ID5mm | N45\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"56\" data-end=\"578\"\u003eThe \u003cstrong data-start=\"60\" data-end=\"115\"\u003eNeodymium Ring Magnet – OD24mm x 12mm | ID5mm | N45\u003c\/strong\u003e is a premium \u003cstrong data-start=\"129\" data-end=\"155\"\u003erare earth ring magnet\u003c\/strong\u003e engineered to deliver exceptional magnetic strength in a compact and versatile design. Manufactured from high-performance \u003cstrong data-start=\"278\" data-end=\"309\"\u003eN45 grade neodymium (NdFeB)\u003c\/strong\u003e, this permanent magnet features a \u003cstrong data-start=\"344\" data-end=\"367\"\u003e24mm outer diameter\u003c\/strong\u003e, \u003cstrong data-start=\"369\" data-end=\"388\"\u003e5mm centre hole\u003c\/strong\u003e, and \u003cstrong data-start=\"394\" data-end=\"412\"\u003e12mm thickness\u003c\/strong\u003e, making it ideal for applications requiring powerful magnetic holding force together with the ability to mount the magnet over shafts, bolts, rods, or locating pins.\u003c\/p\u003e\n\u003cp data-start=\"580\" data-end=\"945\"\u003eIts thick profile and high-grade neodymium construction provide significantly greater magnetic performance than ferrite magnets of similar size. The \u003cstrong data-start=\"729\" data-end=\"748\"\u003e5mm centre bore\u003c\/strong\u003e enables secure mechanical installation while allowing the magnet to be integrated into machinery, magnetic couplings, positioning systems, jigs, fixtures, sensors, and custom engineering projects.\u003c\/p\u003e\n\u003cp data-start=\"947\" data-end=\"1277\"\u003eThe magnet is \u003cstrong data-start=\"961\" data-end=\"1010\"\u003eaxially magnetised through its 12mm thickness\u003c\/strong\u003e, with the north and south poles located on the two large flat circular faces. This provides a concentrated magnetic field for maximum contact with ferrous materials and reliable holding performance across a wide range of industrial, commercial, and DIY applications.\u003c\/p\u003e\n\u003cp data-start=\"1279\" data-end=\"1496\"\u003eProtected by a durable \u003cstrong data-start=\"1302\" data-end=\"1344\"\u003enickel (Ni-Cu-Ni) triple-layer coating\u003c\/strong\u003e, this magnet offers excellent resistance to corrosion and everyday wear while maintaining a bright metallic finish suitable for demanding environments.\u003c\/p\u003e\n\u003cp data-start=\"1498\" data-end=\"1759\"\u003eWhether you're designing automation equipment, manufacturing custom products, building magnetic assemblies, or developing prototypes, the \u003cstrong data-start=\"1636\" data-end=\"1687\"\u003eOD24mm x ID5mm x 12mm N45 Neodymium Ring Magnet\u003c\/strong\u003e delivers outstanding strength, precision, and long-lasting reliability.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1761\" data-end=\"1777\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1779\" data-end=\"2177\"\u003e\n\u003cli data-section-id=\"1ojq3p2\" data-start=\"1779\" data-end=\"1830\"\u003ePremium \u003cstrong data-start=\"1789\" data-end=\"1830\"\u003eN45 grade neodymium rare earth magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"owp3n4\" data-start=\"1831\" data-end=\"1856\"\u003e\u003cstrong data-start=\"1833\" data-end=\"1856\"\u003e24mm outer diameter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"tz0w8o\" data-start=\"1857\" data-end=\"1878\"\u003e\u003cstrong data-start=\"1859\" data-end=\"1878\"\u003e5mm centre hole\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"o80ekd\" data-start=\"1879\" data-end=\"1899\"\u003e\u003cstrong data-start=\"1881\" data-end=\"1899\"\u003e12mm thickness\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"nda4dc\" data-start=\"1900\" data-end=\"1932\"\u003eHigh-strength permanent magnet\u003c\/li\u003e\n\u003cli data-section-id=\"1r6b7vf\" data-start=\"1933\" data-end=\"1975\"\u003eAxially magnetised through the thickness\u003c\/li\u003e\n\u003cli data-section-id=\"akkwmq\" data-start=\"1976\" data-end=\"2008\"\u003ePrecision-machined ring design\u003c\/li\u003e\n\u003cli data-section-id=\"173ooq3\" data-start=\"2009\" data-end=\"2050\"\u003eDurable nickel (Ni-Cu-Ni) plated finish\u003c\/li\u003e\n\u003cli data-section-id=\"4a2iik\" data-start=\"2051\" data-end=\"2109\"\u003eExcellent resistance to corrosion in indoor environments\u003c\/li\u003e\n\u003cli data-section-id=\"uabp42\" data-start=\"2110\" data-end=\"2177\"\u003eSuitable for industrial, commercial, and engineering applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"2179\" data-end=\"2202\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"2204\" data-end=\"2424\"\u003e\n\u003cli data-section-id=\"1sa1yao\" data-start=\"2204\" data-end=\"2224\"\u003eMagnetic couplings\u003c\/li\u003e\n\u003cli data-section-id=\"d4k3ep\" data-start=\"2225\" data-end=\"2247\"\u003eIndustrial machinery\u003c\/li\u003e\n\u003cli data-section-id=\"1mn6jmp\" data-start=\"2248\" data-end=\"2268\"\u003eAutomation systems\u003c\/li\u003e\n\u003cli data-section-id=\"g0eet1\" data-start=\"2269\" data-end=\"2279\"\u003eRobotics\u003c\/li\u003e\n\u003cli data-section-id=\"st0e5j\" data-start=\"2280\" data-end=\"2303\"\u003ePrecision positioning\u003c\/li\u003e\n\u003cli data-section-id=\"13jqz2w\" data-start=\"2304\" data-end=\"2332\"\u003eMagnetic fixtures and jigs\u003c\/li\u003e\n\u003cli data-section-id=\"13lmlie\" data-start=\"2333\" data-end=\"2352\"\u003eSensor assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"1wzx7yo\" data-start=\"2353\" data-end=\"2374\"\u003eProduct development\u003c\/li\u003e\n\u003cli data-section-id=\"r3djtt\" data-start=\"2375\" data-end=\"2397\"\u003eScientific equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1vzfg3n\" data-start=\"2398\" data-end=\"2424\"\u003eDIY engineering projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2426\" data-end=\"2439\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2441\" data-end=\"2655\"\u003e\n\u003cli data-section-id=\"7d099e\" data-start=\"2441\" data-end=\"2452\"\u003eEngineers\u003c\/li\u003e\n\u003cli data-section-id=\"1qjcsvf\" data-start=\"2453\" data-end=\"2472\"\u003eOEM manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2473\" data-end=\"2497\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"chem9c\" data-start=\"2498\" data-end=\"2519\"\u003eRobotics developers\u003c\/li\u003e\n\u003cli data-section-id=\"gt1baa\" data-start=\"2520\" data-end=\"2545\"\u003eMachinery manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2546\" data-end=\"2569\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2570\" data-end=\"2589\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"6m1n6m\" data-start=\"2590\" data-end=\"2615\"\u003eMaintenance technicians\u003c\/li\u003e\n\u003cli data-section-id=\"1lr07fs\" data-start=\"2616\" data-end=\"2642\"\u003eEducational institutions\u003c\/li\u003e\n\u003cli data-section-id=\"dbvlhb\" data-start=\"2643\" data-end=\"2655\"\u003eDIY makers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1pdgish\" data-start=\"2657\" data-end=\"2701\"\u003eWhy Choose an N45 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2703\" data-end=\"3136\"\u003eThe \u003cstrong data-start=\"2707\" data-end=\"2720\"\u003eN45 grade\u003c\/strong\u003e provides stronger magnetic performance than lower neodymium grades, making it an excellent choice where maximum holding power is required within a compact footprint. Its combination of a \u003cstrong data-start=\"2908\" data-end=\"2931\"\u003e24mm outer diameter\u003c\/strong\u003e, \u003cstrong data-start=\"2933\" data-end=\"2951\"\u003e12mm thickness\u003c\/strong\u003e, and \u003cstrong data-start=\"2957\" data-end=\"2976\"\u003e5mm centre hole\u003c\/strong\u003e makes it particularly suitable for applications where the magnet needs to be mounted over a shaft, bolt, or locating pin without sacrificing magnetic strength.\u003c\/p\u003e\n\u003cp data-start=\"3138\" data-end=\"3462\"\u003eThe thick ring profile creates a powerful magnetic field across the two flat faces, making this magnet ideal for clamping, locating, holding, and positioning applications. Its compact dimensions also allow it to be incorporated into precision assemblies where space is limited but reliable magnetic performance is essential.\u003c\/p\u003e\n\u003cp data-start=\"3464\" data-end=\"3693\"\u003eManufactured to high tolerances and finished with a durable nickel coating, this magnet delivers dependable long-term performance for OEM manufacturing, industrial automation, scientific research, and custom engineering projects.\u003c\/p\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"3695\" data-end=\"3723\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"3725\" data-end=\"4168\"\u003e\n\u003cli data-section-id=\"11wbjya\" data-start=\"3725\" data-end=\"3766\"\u003e\n\u003cstrong data-start=\"3727\" data-end=\"3744\"\u003eProduct Type:\u003c\/strong\u003e Neodymium Ring Magnet\u003c\/li\u003e\n\u003cli data-section-id=\"1fqlth2\" data-start=\"3767\" data-end=\"3800\"\u003e\n\u003cstrong data-start=\"3769\" data-end=\"3782\"\u003eMaterial:\u003c\/strong\u003e Neodymium (NdFeB)\u003c\/li\u003e\n\u003cli data-section-id=\"j4nl30\" data-start=\"3801\" data-end=\"3824\"\u003e\n\u003cstrong data-start=\"3803\" data-end=\"3820\"\u003eMagnet Grade:\u003c\/strong\u003e N45\u003c\/li\u003e\n\u003cli data-section-id=\"138gwy7\" data-start=\"3825\" data-end=\"3842\"\u003e\n\u003cstrong data-start=\"3827\" data-end=\"3837\"\u003eShape:\u003c\/strong\u003e Ring\u003c\/li\u003e\n\u003cli data-section-id=\"1m6wlpc\" data-start=\"3843\" data-end=\"3874\"\u003e\n\u003cstrong data-start=\"3845\" data-end=\"3869\"\u003eOuter Diameter (OD):\u003c\/strong\u003e 24mm\u003c\/li\u003e\n\u003cli data-section-id=\"bfzlle\" data-start=\"3875\" data-end=\"3905\"\u003e\n\u003cstrong data-start=\"3877\" data-end=\"3901\"\u003eInner Diameter (ID):\u003c\/strong\u003e 5mm\u003c\/li\u003e\n\u003cli data-section-id=\"jzt\" data-start=\"3906\" data-end=\"3936\"\u003e\n\u003cstrong data-start=\"3908\" data-end=\"3931\"\u003eThickness (Height):\u003c\/strong\u003e 12mm\u003c\/li\u003e\n\u003cli data-section-id=\"12o6dg0\" data-start=\"3937\" data-end=\"4005\"\u003e\n\u003cstrong data-start=\"3939\" data-end=\"3957\"\u003eMagnetisation:\u003c\/strong\u003e Axially Magnetised (through the 12mm thickness)\u003c\/li\u003e\n\u003cli data-section-id=\"1fmz6qi\" data-start=\"4006\" data-end=\"4038\"\u003e\n\u003cstrong data-start=\"4008\" data-end=\"4020\"\u003eCoating:\u003c\/strong\u003e Nickel (Ni-Cu-Ni)\u003c\/li\u003e\n\u003cli data-section-id=\"92n46\" data-start=\"4039\" data-end=\"4058\"\u003e\n\u003cstrong data-start=\"4041\" data-end=\"4054\"\u003eReusable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-section-id=\"xa4wpu\" data-start=\"4059\" data-end=\"4168\"\u003e\n\u003cstrong data-start=\"4061\" data-end=\"4077\"\u003eApplication:\u003c\/strong\u003e Holding, positioning, mounting, magnetic couplings, automation, and engineering assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"4170\" data-end=\"4185\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"4187\" data-end=\"4410\"\u003eNeodymium magnets are extremely powerful for their size and should be handled with care. They can attract steel objects and other magnets suddenly, creating pinch hazards or causing the magnet to chip if allowed to collide.\u003c\/p\u003e\n\u003cp data-start=\"4412\" data-end=\"4627\"\u003eThe \u003cstrong data-start=\"4416\" data-end=\"4435\"\u003e5mm centre hole\u003c\/strong\u003e is designed for mounting and positioning purposes. Avoid overtightening fasteners or applying excessive mechanical force, as neodymium magnets are hard but brittle and may crack under stress.\u003c\/p\u003e\n\u003cp data-start=\"4629\" data-end=\"4803\"\u003eActual magnetic performance will vary depending on the thickness and condition of the mating steel surface, air gap, alignment, operating temperature, and application design.\u003c\/p\u003e\n\u003cp data-start=\"4805\" data-end=\"5068\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eKeep this magnet away from pacemakers, medical implants, magnetic storage media, and sensitive electronic devices. Do not drill, cut, or machine the magnet after manufacture, as this may damage the protective coating and permanently weaken or fracture the magnet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046563460,"sku":"R-OD24H12ID5-N45","price":22.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/R-OD24X12X5-N45__63092.jpg?v=1781990066"},{"product_id":"neodymium-ring-magnet-od24-x-h2-x-id15-mm-n35h","title":"Neodymium Ring Magnet OD24mm x H2mm | Hole 15 mm | N35H | High Temperature ≤120ºC","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 24mm OD x 15mm ID x 2mm H | N35H | High Temperature\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 24mm Outside Diameter x 15mm Inside Diameter x 2mm Height | N35H | High Temperature\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact, high-performance Rare Earth permanent magnet designed for applications requiring a thin magnetic ring with improved resistance to elevated operating temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35H grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this specialised ring magnet combines strong magnetic properties with the enhanced temperature resistance associated with H-grade Neodymium magnetic materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24mm outside diameter (OD), 15mm inside diameter (ID) and 2mm height (H)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this ultra-thin magnetic ring is particularly suitable for precision engineering, electronic assemblies, magnetic sensors, motors, actuators and custom magnetic systems where installation space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e15mm through-hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides clearance for compatible shafts, rods, mounting components and other mechanical assemblies, making this magnet a versatile option for applications requiring a circular magnetic component with an open centre.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a thickness of just \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this Neodymium ring magnet offers a low-profile design that can be incorporated into shallow recesses, compact housings and specialised magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35H magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is particularly important for applications involving elevated temperatures. H-grade Neodymium magnets are formulated to provide improved resistance to irreversible demagnetisation at higher temperatures compared with standard N-grade magnets of similar composition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35H Neodymium magnets are commonly associated with a maximum operating temperature of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, although the actual permissible operating temperature depends on magnet geometry, magnetic circuit, environmental conditions and the manufacturer's specifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes the magnet potentially suitable for applications where conventional Neodymium magnets may experience reduced magnetic performance due to heat exposure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped design allows the magnet to be incorporated into magnetic coupling systems, rotating assemblies, sensors and precision mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts compact dimensions also make it useful for product development, prototyping, research and specialised manufacturing applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets generate a permanent magnetic field without requiring batteries, wiring or an external power source.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, the exact magnetic field distribution depends on the magnetisation direction, which has not been specified in the supplied product information.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24mm OD x 15mm ID x 2mm H\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e geometry provides a narrow annular magnetic profile that may be useful in assemblies where a larger central opening and minimal installation depth are required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet's relatively thin construction also means it should be handled carefully to avoid cracking, chipping or damage caused by bending or impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35H Neodymium ring magnet, high-temperature Rare Earth ring magnet, 24mm OD magnetic ring, 15mm bore Neodymium magnet, thin NdFeB ring magnet or heat-resistant permanent ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product offers a specialised magnetic solution for demanding technical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing a compact motor assembly, manufacturing precision equipment, creating a magnetic sensor system or designing a high-temperature magnetic component, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 24mm OD x 15mm ID x 2mm H | N35H\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a practical combination of thin ring geometry, permanent magnetism and enhanced temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN35H Grade Neodymium:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-temperature Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e24mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact circular magnetic body.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e15mm Inside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Central through-hole for compatible mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2mm Height:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ultra-thin magnetic ring profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Temperature Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e H-grade Neodymium offers improved resistance to demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRare Earth Magnetic Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Manufactured from Neodymium Iron Boron (NdFeB).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for assemblies requiring a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLow-Profile Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for shallow recesses and compact installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrecision Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for specialised engineering and manufacturing projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMagnetic Sensor Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Potentially suitable for appropriately designed magnetic sensing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMotor and Actuator Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to specialised electromagnetic and mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact Magnetic Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High magnetic energy density relative to size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Engineering Use:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for custom magnetic assemblies and product development.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate the magnet into appropriately designed systems exposed to elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectric Motors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially suitable for specialised motor designs requiring a thin ring magnet with improved temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Sensors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in compatible magnetic sensing systems where the field orientation and strength meet design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for compact magnetic assemblies and specialised mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Coupling Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into appropriately engineered magnetic coupling arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectronic Equipment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially suitable for compact electronic assemblies where magnetic interference and temperature requirements have been assessed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAutomotive Components\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eRelevant to specialised automotive applications involving elevated temperatures and limited installation space.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eActuators and Control Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMay be incorporated into custom actuator assemblies requiring permanent magnetic components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eResearch and Development\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for magnetic experiments, prototypes and engineering development projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for applications requiring a thin magnetic ring with a relatively large central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N35H High-Temperature Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eImproved Temperature Resistance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe N35H grade provides enhanced resistance to irreversible demagnetisation at elevated temperatures compared with standard N-grade Neodymium magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eUltra-Thin 2mm Profile\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe slim design is suitable for applications where installation depth is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 15mm central opening allows compatible shafts and other components to pass through the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet generates a magnetic field without electrical power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable for Precision Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for engineering, sensors, motors and specialised magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Rare Earth Magnetism\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium provides high magnetic energy density in a small physical format.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet – High Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Category\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN35H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTemperature Classification\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh Temperature (H Grade)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInside Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness (H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eThrough-Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Radial Wall Width\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Annular Face Area\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e275.7mm²\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Magnetic Material Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e551.3mm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.13g (Calculated Estimate)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical N35H Temperature Class\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to Approximately 120°C, Subject to Manufacturer Verification\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct-Specific Maximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Confirmed\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating \/ Finish\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturing Tolerance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Temperature Assemblies, Sensors, Motors and Precision Engineering\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOutside Diameter – 24mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has a nominal outside diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis measurement describes the full width of the circular magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInside Diameter – 15mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central through-hole measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e15mm in diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis opening may accommodate compatible shafts, rods and other mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufacturing tolerances and mechanical clearance should be considered when designing mating parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 2mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm in height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making it suitable for low-profile applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Wall Width – 4.5mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal radial wall width is calculated as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e(24mm − 15mm) ÷ 2 = 4.5mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis represents the distance between the central hole and outside edge.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAnnular Face Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe approximate area of one flat ring-shaped face is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e275.7mm² (2.76cm²)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis calculation excludes the central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Magnet Volume\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBased on the nominal dimensions, the approximate volume of magnetic material is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e551.3mm³ (0.551cm³)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Weight\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUsing a typical Neodymium magnet density of approximately 7.5g\/cm³, the estimated magnet weight is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e4.13 grams\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is a theoretical estimate. Actual weight may vary depending on material composition, coating and manufacturing tolerances.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is an N35H Neodymium Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAn \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35H Neodymium magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-temperature grade Rare Earth permanent magnet manufactured from Neodymium, Iron and Boron.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designation identifies the magnetic energy grade, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eH\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e suffix indicates a higher intrinsic coercivity classification associated with improved resistance to irreversible demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35H magnets are commonly used in applications where standard Neodymium magnets may not provide sufficient temperature stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTypical applications include specialised motors, sensors, actuators, automotive components and industrial magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, the actual operating temperature limit depends on the magnet's dimensions, magnetic circuit and environmental conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does the H Mean in N35H?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eH\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e in N35H stands for a high-temperature coercivity classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eH-grade Neodymium magnets are designed to resist demagnetisation more effectively at elevated temperatures than standard N-grade magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35H magnets are commonly associated with operating temperatures of up to approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis temperature should be treated as a general grade reference rather than a guaranteed operating limit for this specific product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual maximum temperature must be verified against the manufacturer's specifications and the intended magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is a Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA Neodymium ring magnet is a circular permanent magnet featuring a central through-hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike a solid disc magnet, a ring magnet allows a compatible component to pass through its centre.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis geometry makes ring magnets useful in mechanical assemblies, magnetic couplings, shaft-mounted systems, motors, sensors and specialised industrial equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets can be manufactured with different magnetisation directions, including axial, diametric and other specialised configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe magnetisation direction of this particular product has not been specified and should be confirmed before use in polarity-sensitive applications.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does an N35H Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets generate a permanent magnetic field due to the alignment of magnetic domains within the material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe N35H grade provides strong magnetic properties with enhanced resistance to demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen positioned near suitable ferromagnetic materials or other magnets, magnetic attraction or repulsion may occur depending on the magnetic pole orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening allows the magnet to be incorporated into assemblies requiring clearance for a shaft, rod or other component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic field distribution depends on the magnetisation direction and surrounding magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor applications involving motors, sensors or magnetic couplings, the magnetic field should be verified against the engineering requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of High-Temperature Neodymium Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eImproved Resistance to Heat\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eH-grade Neodymium provides enhanced resistance to irreversible demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 24mm OD and 15mm ID provide a relatively large central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eUltra-Thin Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 2mm height is suitable for shallow installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Field\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo electrical power is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Engineering Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for appropriately designed motors, sensors, actuators and magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium provides strong magnetic properties relative to size.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eStandard N35 vs N35H Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eStandard N35\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eN35H\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNdFeB\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNdFeB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Energy Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoercivity Classification\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Temperature Class\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOften Up to 80°C\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOften Up to 120°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eResistance to High-Temperature Demagnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eImproved\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGeneral Magnetic Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eElevated-Temperature Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eActual Operating Limit\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApplication Dependent\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApplication Dependent\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eThe temperature values shown are general grade references. The actual operating limits must be verified for the finished magnet and application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install or Use a Thin Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check that the 24mm OD, 15mm ID and 2mm height suit the intended assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Magnetisation Direction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the pole orientation before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Temperature Requirements:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the operating environment is suitable for the verified product temperature rating.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Mounting Components:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allow appropriate clearance for shafts, rods or other mating parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, chips or coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHandle Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid bending, impact and uncontrolled attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Align it with the intended assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSecure Appropriately:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use a mounting method that avoids excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest Under Operating Conditions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify magnetic performance and mechanical stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect Periodically:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for damage, movement or reduced performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 2mm thickness makes careful handling particularly important. Neodymium magnets are brittle and should not be subjected to bending or excessive pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35H provides strong magnetic properties and enhanced temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eElevated temperatures can reduce magnetic performance and may cause irreversible demagnetisation if the magnet's limits are exceeded.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe orientation of the magnetic poles affects the magnetic field distribution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps can significantly reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel thickness, composition and magnetic properties influence holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Circuit\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe surrounding materials and geometry affect the magnetic field and operating temperature capability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Stress\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThin Neodymium magnets are brittle and can crack under impact or bending.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSurface Contact\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFlat, clean and properly aligned contact surfaces generally improve magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent cracking or chipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid bending or flexing the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not allow magnets to collide.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep fingers clear of pinch points.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill, cut or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid exceeding the verified operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep magnetic contact surfaces clean.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for cracks or coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore magnets with suitable separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from magnetically sensitive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse appropriate protective equipment when handling strong magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTest magnetic performance before use in demanding applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract steel objects and other magnets unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle by nature. The 2mm thickness requires particular care during handling and installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSwallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Small powerful magnets can cause life-threatening internal injuries if swallowed. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic attraction can cause sudden movement and trapping of skin.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers, implanted medical devices and magnetically sensitive medical equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with certain electronic devices, sensors and magnetic storage media.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35H is a high-temperature grade, but the product-specific maximum operating temperature must be verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent engineering assessment and testing are required before use where magnetic failure could cause injury or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat are the dimensions of this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24mm outside diameter, 15mm inside diameter and 2mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat grade is this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35H grade Neodymium\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N35H mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35H identifies an N35 magnetic energy grade with a high-temperature coercivity classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N35H suitable for high temperatures?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. N35H provides improved resistance to irreversible demagnetisation at elevated temperatures compared with standard N35.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35H is commonly associated with a temperature class of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, but the product-specific limit has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outside diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outside diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the inside diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e15mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHow thick is the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the radial wall width?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal radial wall width is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.5mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes the magnet have a through-hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. It features a central through-hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan a 15mm shaft fit through the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA nominal 15mm shaft may not have sufficient clearance. Manufacturing tolerances and mechanical fit must be considered.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this an axially magnetised ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA pull-force rating has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the Gauss rating?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe surface Gauss rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet nickel coated?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe coating or finish has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the approximate weight?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe estimated weight is approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.13g\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, based on typical NdFeB density.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet in an electric motor?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided the magnetisation direction, dimensions and temperature performance meet the motor design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for magnetic sensors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, depending on the required magnetic field orientation and sensor design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for automotive applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided its magnetic and environmental performance meet the application's requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for magnetic couplings?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, it may be suitable for appropriately engineered magnetic coupling systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N35H stronger than N52?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN52 generally has a higher maximum energy product, while N35H offers improved high-temperature coercivity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N35H better than standard N35?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35H is generally preferable where increased resistance to high-temperature demagnetisation is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Drilling or machining finished Neodymium magnets can cause damage and create hazardous dust.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAre thin Neodymium magnets fragile?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium magnets are brittle and thin magnets require careful handling.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium magnets attract suitable ferromagnetic steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract aluminium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Aluminium is not ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use two ring magnets together?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided the magnetic polarity and mechanical arrangement are compatible.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for outdoor use?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly after appropriate engineering verification, testing and compliance assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Temperature Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN35H Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Temperature Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Sensor Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Permanent Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 24mm OD x 15mm ID x 2mm H | N35H | High Temperature\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact Rare Earth permanent magnet designed for applications requiring a thin ring profile and improved resistance to elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e24mm outside diameter, 15mm inside diameter and 2mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35H grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35H is commonly associated with a temperature class of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e120°C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, but the actual maximum operating temperature depends on the magnet's geometry, magnetic circuit and manufacturer specifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecific magnetisation direction, coating, pull force, surface Gauss, manufacturing tolerances and product-specific operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on magnetisation, operating temperature, receiving materials, air gaps and surrounding magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Thin Neodymium magnets are powerful and brittle. Handle carefully and avoid bending, impact and excessive mechanical pressure. Independent testing is required before use in safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046596228,"sku":"R-OD24H2ID15-N35H","price":7.88,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od24h2id15-n35h.png?v=1752624821"},{"product_id":"neodymium-ring-magnet-od25-x-h10-x-id6-mm-n35","title":"Neodymium Ring Magnet OD25 x H10 x ID6 mm N35 | Neodymium Magnets","description":"\u003ch1\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm OD x 6mm ID x 10mm H | N35\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm OD x 6mm ID x 10mm H | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a strong \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erare earth permanent magnet measuring 25mm outside diameter (OD) x 6mm inside diameter (ID) x 10mm high\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this ring-shaped magnet combines reliable neodymium magnetic performance with a central straight through-hole for integration into mechanical, engineering and product assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6mm central opening\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a useful passage through the magnet for appropriately sized shafts, rods, pins, tubes, locating components and other mechanical features. Its substantial \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm height and 25mm outside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provide a robust annular geometry suitable for engineering, manufacturing, sensors, positioning systems, magnetic assemblies, fixtures, research, prototypes and custom OEM products.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAlso known as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 neodymium ring magnet, rare earth ring magnet, NdFeB annular magnet, donut magnet, ring-shaped neodymium magnet or rare earth magnet with a central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this permanent magnetic component operates continuously without electricity, batteries or charging.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutside diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 25mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInside diameter (ID):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 6mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ring \/ annular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnet type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare earth permanent magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCentral opening:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 6mm straight through-hole\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong magnetic performance relative to size\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePractical ring-shaped geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for mechanical integration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for engineering and manufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for positioning and alignment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for sensors and instrumentation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for fixtures and product assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for research and prototype development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for custom OEM magnetic assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePermanent magnetic operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo electricity, batteries or charging required\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEngineering\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndustrial equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComponent positioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensors and instrumentation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePosition detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProximity sensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic switching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFixtures and jigs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMachinery components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResearch and development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLaboratory equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom OEM magnetic assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003e25mm OD x 6mm ID x 10mm High Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N35 neodymium ring magnet measures:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e25mm outside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e6mm inside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e10mm height\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe central 6mm opening creates an annular magnetic body that can be useful where another mechanical component needs to pass through the centre of the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe 10mm height gives this magnet a relatively substantial profile compared with thin ring magnets, making it suitable for appropriately designed magnetic and mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe stated dimensions describe the physical geometry of the magnet and should not be interpreted as a pull-force or safe working load.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Grade Neodymium Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis ring magnet is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 is a widely used neodymium grade that provides strong magnetic performance relative to its physical size and is suitable for a broad range of commercial, industrial and engineering applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 neodymium magnets can be useful where:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStrong permanent magnetism is required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact dimensions are important\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA ring-shaped magnetic component is required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic performance needs to exceed that typically available from similarly sized ferrite magnets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA permanent magnetic field is required without electrical power\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation identifies the magnetic material grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. It does not mean the magnet has a 35kg pull force.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does N35 Mean?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e refers to the grade of the Neodymium Iron Boron magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe numerical grade relates to the material's maximum energy product and provides a useful way to classify different neodymium magnetic materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen magnets have equivalent dimensions, geometry and magnetisation configuration, higher neodymium grades can generally provide greater magnetic performance than lower grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHowever, magnetic grade alone does not establish:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePull force\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSafe working load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese depend on the complete magnetic design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eNeodymium Iron Boron Rare Earth Material\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium Iron Boron is a high-performance \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erare earth permanent magnetic material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e used extensively in modern engineered products and magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNdFeB magnets are valued for their ability to provide strong magnetic properties from relatively compact dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTypical functions include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic attraction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSwitching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCoupling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct integration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic circuit development\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis makes neodymium particularly useful where available installation space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e6mm Central Through-Hole\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis ring magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6mm inside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, forming a straight central opening through the 10mm height.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDepending on the finished assembly, the opening may provide clearance for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eShafts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRods\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePins\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLocating components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHousings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical guides\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOther product components\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHowever, the stated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6mm inside diameter should not automatically be interpreted as compatibility with a 6mm shaft, bolt, rod or tube\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMechanical fit depends on the actual dimensions and tolerances of both components and the clearance required for the application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBecause neodymium is brittle, this magnet should not be force-fitted onto an oversized or excessively tight component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eEngineering and Mechanical Assemblies\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe combination of a central opening and strong N35 magnetic material makes this ring magnet useful for integration into appropriately designed mechanical systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEquipment components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRotating assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFixtures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype machinery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom magnetic devices\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe magnet should be appropriately supported within the finished assembly so it is not subjected to excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSensors and Instrumentation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium ring magnets are frequently incorporated into magnetic sensing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePosition detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProximity sensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHall-effect sensors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReed switch activation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic switching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstrumentation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEquipment monitoring\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePerformance in a sensor application depends on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole orientation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic field strength\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet-to-sensor distance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor sensitivity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe magnetisation configuration of this magnet has not been supplied and should be confirmed where field orientation is critical.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePositioning and Alignment\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRing magnets can be useful for magnetic positioning and alignment in product and mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential functions include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eComponent locating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRepeatable positioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic alignment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAssembly assistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFixture positioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere multiple magnets are used, polarity and orientation should be confirmed before permanent installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium ring magnets can be manufactured with different magnetisation configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA ring magnet may potentially be:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAxially magnetised through its 10mm height\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDiametrically magnetised across its diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRadially magnetised\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMultipole magnetised\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufactured with another specialised pole arrangement\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe actual \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emagnetisation direction and pole configuration have not been supplied\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for this product and should not be assumed from its ring shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConfirm the magnetic orientation where pole location or field direction is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Coupling Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRing magnets may be incorporated into magnetic coupling systems where their geometry and magnetisation configuration are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eContactless magnetic couplings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRotating mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype mechanical assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe performance of a magnetic coupling depends on factors including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole arrangement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet spacing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNumber of magnets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eN35 material properties\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo coupling force or torque should be inferred from the dimensions alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAlthough this magnet is confirmed as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, practical magnetic performance depends on many additional factors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eN35 material properties\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic circuit design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget steel composition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget steel thickness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable contact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLoad direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical leverage\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force or magnetic flux density in Gauss\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese values should not be estimated from the N35 designation or physical dimensions alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Does Not Mean 35kg Pull Force\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation does not mean this magnet has a 35kg pull force\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 identifies the magnetic material grade.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePull force is a separate performance measurement that depends on the magnet's:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eGeometry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTest conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUse a verified pull-force specification where magnetic holding capacity is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDirect Pull vs Shear Force\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere the magnet operates against compatible ferromagnetic steel, holding performance changes with load direction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDirect pull\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is separated perpendicular to the target surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eShear loading\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is encouraged to slide parallel to the target.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eShear performance can be influenced by:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSurface friction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact quality\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface coatings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation orientation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical leverage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVibration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTest the finished assembly under realistic conditions where magnetic holding is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAir Gaps and Magnetic Attraction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAir gaps can significantly reduce the practical attraction of neodymium magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential sources of separation include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePaint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePowder coating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdhesive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProtective films\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDirt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRust\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor maximum practical magnetic attraction, unnecessary separation between the magnet and magnetic target should generally be minimised.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTarget Steel Thickness\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere this magnet is used against steel, the properties of the target material influence magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eImportant factors include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSteel composition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSteel thickness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic saturation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eVery thin steel may not provide the same magnetic response as a suitably thick ferromagnetic target.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTesting against the actual target material is recommended for performance-critical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBonding a Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N35 ring magnet may be adhesively bonded into an appropriately designed housing or product assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBefore bonding:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eConfirm magnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfirm polarity where multiple magnets are involved\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean both bonding surfaces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemove grease, dust and contamination\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSelect an adhesive compatible with the magnet's actual surface finish\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProvide suitable dimensional clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvoid force-fitting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllow the adhesive to cure according to its instructions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecoating or plating has not been supplied\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, so adhesive compatibility with the actual magnet surface should be confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAvoid Force-Fitting Through the 6mm Hole\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium Iron Boron is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard but brittle\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDo not force an oversized shaft, bolt, pin, tube or rod through the 6mm central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eExcessive mechanical pressure can cause the ring magnet to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eChip\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCrack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSplit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFracture\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eProvide suitable mechanical clearance based on the actual dimensions and tolerances of both components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDo Not Machine Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFinished neodymium magnets should not be modified using conventional workshop methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAvoid:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDrilling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCutting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGrinding\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCrushing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMachining\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnlarging the central hole\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese processes can damage the brittle NdFeB material and any protective surface coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf another inside diameter or overall geometry is required, use a magnet manufactured to the appropriate dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCompatible Target Materials\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium magnets attract suitable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eferromagnetic materials\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMild steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIron\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible ferromagnetic components\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThey will not effectively attract inherently non-magnetic materials such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAluminium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBrass\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTimber\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGlass\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMany stainless steel grades may also be weakly magnetic or non-magnetic and should be tested before relying on magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Neodymium vs Ferrite Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 neodymium and ferrite ring magnets offer different magnetic characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eN35 neodymium ring magnets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e generally provide:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigher magnetic performance relative to size\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong magnetic properties from compact dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdvantages in space-restricted systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitability for sensors and engineered assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFerrite ring magnets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e generally provide:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLower cost\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGood natural corrosion resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGood resistance to demagnetisation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitability where larger magnet dimensions are acceptable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 neodymium is commonly selected where \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003estrong magnetic performance within a compact ring-shaped component\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePermanent Magnetic Operation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N35 neodymium ring magnet is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epermanent magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt requires:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eNo electricity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo charging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo external power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts magnetic field remains continuously active during normal use.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Ring Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eAlternative Names:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35 Neodymium Ring Magnet, Rare Earth Ring Magnet, NdFeB Ring Magnet, Neodymium Annular Magnet, Donut Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutside Diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 25mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInside Diameter (ID):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 6mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCentral Opening:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Straight through-hole\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ring \/ Annular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnet Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare Earth Permanent Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Permanent\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePower Required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e None\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCompatible Targets:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable ferromagnetic iron and steel\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePrimary Functions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic attraction, positioning, alignment, sensing, coupling and product integration\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTypical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engineering, manufacturing, mechanical assemblies, sensors, fixtures, machinery, research, prototypes and OEM products\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSafety and Handling\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium magnets can generate strong magnetic attraction and should be handled carefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep fingers clear when the magnet approaches another magnet or ferromagnetic steel surface. Sudden attraction can cause:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePinching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTrapping injuries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet collisions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChipping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCracking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFragmentation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium is brittle despite its high magnetic performance. Avoid uncontrolled collisions and excessive mechanical pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep powerful permanent magnets an appropriate distance from:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePacemakers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImplanted medical devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic storage media\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic cards\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensitive electronic equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep magnets securely away from children.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis product is an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 Neodymium Ring Magnet measuring 25mm outside diameter (OD) x 6mm inside diameter (ID) x 10mm high\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, manufactured from Neodymium Iron Boron (NdFeB) rare earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation identifies the magnetic material grade and does not mean the magnet has a 35kg pull force\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6mm inside diameter describes the physical size of the central through-hole and does not automatically indicate compatibility with a 6mm shaft, bolt, rod, tube or other component\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Appropriate dimensional tolerances and mechanical clearance should be considered.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force, Gauss rating, coating or plating, magnetisation direction, pole configuration, dimensional tolerance or maximum operating temperature\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied and these specifications should not be assumed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual magnetic performance depends on the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 material properties, magnetisation configuration, magnetic circuit, target material, target steel thickness, available contact area, surface condition, air gaps, load direction and installation geometry\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard and brittle magnetic material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Avoid impact, force-fitting, drilling, cutting, grinding or machining.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe stated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm OD x 6mm ID x 10mm H dimensions describe the physical geometry of the magnet and do not represent its pull force, holding capacity or safe working load\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot certified lifting equipment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should not be used for overhead or safety-critical lifting.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046628996,"sku":"R-OD25H10ID6-N35","price":19.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od25h10id6-n35_1.png?v=1752624820"},{"product_id":"neodymium-ring-magnet-od25-x-h2-x-id10-mm-n38","title":"Neodymium Ring Magnet OD25mm x H2mm | Hole 10mm N38","description":"\u003cp\u003eNeodymium Ring Magnets\u003c\/p\u003e\n\u003cp\u003eOutside Diameter: 25mm\u003cbr\u003eHeight: 2mm\u003cbr\u003eInside Diameter: 10mm\u003cbr\u003eGrade: N38\u003cbr\u003eCoating: Nickel (Ni)\u003cbr\u003eMagnetised Direction: Through height – 2mm\u003cbr\u003ePull force: 2.866kg\u003cbr\u003eSurface field: -1,344 gauss\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThis rare earth ring magnet has an outside diameter of 25mm, an inside diameter of 10mm and a thickness of 2mm. With a grade of N38, this permanent magnet has a pull force or magnetic force of 2.8kg. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eNeodymium magnets are the strongest type of magnets on the market and they come in a range of different shapes and sizes. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eStrong magnet rings are an important part of many devices as they provide superior accuracy and precision. When fitted externally over a shaft or internally inside a tube, they work as a magnetic ring sensor which guides moving mechanical elements into the correct position. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eRare earth ring magnets are an adaptable magnet for use around the home or in DIY projects. The hole in the middle provides an easy method to attach the magnet. The North and South poles are present through the flat faces of this axially magnetised ring.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046661764,"sku":"R-OD25H2ID10-N38","price":7.83,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/R-OD25H2ID10-N38.png?v=1781863853"},{"product_id":"neodymium-ring-magnet-od25-x-h10-x-id10-mm-n35","title":"Neodymium Ring Magnet Australia OD25 x H10 x ID10 mm","description":"\u003ch1\u003e\u003cspan\u003eNeodymium Ring Magnet Australia – OD25mm x H10mm x ID10mm\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm OD x 10mm H x 10mm ID\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a powerful \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erare earth permanent magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e featuring a convenient central hole for mounting, positioning and custom assembly applications. Manufactured from high-performance \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eneodymium iron boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this ring magnet combines strong magnetic attraction with a compact and versatile circular design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMeasuring \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm outside diameter (OD), 10mm high and 10mm inside diameter (ID)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this neodymium ring magnet is suitable for industrial, commercial, engineering and DIY applications requiring a strong magnet with a straight central hole. The \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm centre hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e can accommodate suitable rods, shafts, fasteners or other components, depending on the application, and also provides a convenient feature for incorporating the magnet into custom assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRing magnets are widely used in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emagnetic holding systems, sensors, mechanical assemblies, manufacturing equipment, prototypes, experiments and product development\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Their annular shape allows components to pass through the centre while maintaining a substantial magnetic surface area around the hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003ePowerful \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eneodymium rare earth ring magnet\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eOutside Diameter (OD): 25mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eHeight \/ Thickness: 10mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eInside Diameter (ID): 10mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStraight central through-hole\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact, high-strength permanent magnet\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExcellent magnetic strength-to-size ratio\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for mounting around shafts, rods and suitable fasteners\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVersatile design for industrial and engineering assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for commercial, manufacturing, workshop and DIY applications\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic holding and retention systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngineering assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensors and detection equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRobotics and automation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct manufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic couplings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eScientific experiments\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical positioning systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom magnetic assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Choose a Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium magnets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e are among the strongest commercially available permanent magnets, providing considerably more magnetic strength for their size than conventional ferrite magnets. This makes them particularly useful when strong magnetic performance is required within a compact assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm OD x 10mm H x 10mm ID\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e ring configuration combines a substantial magnetic body with a practical central opening. Unlike a solid disc magnet, the through-hole allows a shaft, rod or other component to pass directly through the centre of the magnet, providing additional design flexibility for engineering and manufacturing applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis ring-shaped design can also be incorporated into custom fixtures, magnetic couplings, sensors and positioning systems where a central opening is required without sacrificing the benefits of a powerful rare earth magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Ring Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ring \/ Annular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutside Diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 25mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInside Diameter (ID):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight \/ Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHole Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Straight through-hole\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnet Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Permanent Rare Earth Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Holding, mounting, positioning, sensing, manufacturing and engineering assemblies\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eNeodymium Ring Magnets in Australia\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm neodymium ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is suitable for Australian businesses, manufacturers, engineers, tradespeople, workshops, educational institutions and DIY users looking for a compact \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erare earth ring magnet with a 10mm centre hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Its combination of strong magnetic performance and practical dimensions makes it a versatile component for both one-off projects and ongoing production requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium magnets are extremely powerful for their size and should be handled carefully. Strong attraction between magnets or ferrous objects can create pinch hazards and may cause the magnet to chip or crack if allowed to collide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual magnetic holding performance depends on factors including the mating material, steel thickness, surface condition, contact area, air gap and direction of force. Paint, coatings, gaps and sideways or peeling forces can significantly reduce effective holding strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium magnets are hard but brittle. Do not drill, cut or machine the magnet. If permanent installation is required, select an appropriate mounting or adhesive method for the materials and operating conditions involved.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKeep strong magnets away from children, pacemakers, medical implants, magnetic storage media and sensitive electronic equipment.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046694532,"sku":"R-OD25H10ID10-N35","price":22.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od25h10id10-n35.png?v=1752624817"},{"product_id":"neodymium-ring-magnet-od30-x-h4-x-id10-mm-n42","title":"Neodymium Ring Magnet OD30mm x H4mm | Hole 10mm N42","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 30mm OD x 10mm ID x 4mm H | N42 Rare Earth Magnet\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 30mm Outer Diameter x 10mm Inner Diameter x 4mm Height | N42\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-strength Rare Earth permanent magnet featuring a circular ring design with a central mounting hole. Manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42-grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this versatile magnet combines powerful magnetic properties with a practical, low-profile construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMeasuring \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30mm in outer diameter, 10mm in inner diameter and 4mm in thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this Neodymium ring magnet is suitable for engineering, manufacturing, magnetic assemblies, sensors, custom mounting systems and a wide range of technical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides clearance for suitable shafts, mounting components, spacers and other assembly hardware, allowing the magnet to be incorporated into specialised equipment and custom designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e creates a slim magnetic profile, making it particularly useful where installation depth is limited but a larger circular magnetic surface is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42-grade Neodymium\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this magnet offers high magnetic energy density compared with conventional Ferrite magnets. N42 is a popular Rare Earth magnetic grade used in industrial, commercial and precision engineering applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped design allows components to pass through the centre of the magnet, making it useful for applications where a solid disc magnet would obstruct a shaft, fixing or other mechanical component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike countersunk ring magnets, this product features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003estraight 10mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with no countersink specified. The opening can accommodate compatible mounting hardware, although the magnet itself should not be subjected to excessive fastening pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are brittle by nature and can crack or chip when exposed to impact, excessive mechanical stress or uncontrolled collisions with other magnets and ferromagnetic materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet may be installed within a suitable housing, retained using an engineered mounting arrangement or bonded to a compatible surface using an appropriate adhesive.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual magnetic holding force depends on the magnetisation direction, receiving steel thickness, contact area, air gaps, surface coatings and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlthough the N42 grade identifies the magnetic material's energy classification, it does not establish the finished magnet's pull-force rating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specific pull force, surface Gauss, magnetisation direction, protective coating and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese characteristics should be verified before using the magnet in applications requiring a particular magnetic field orientation, environmental resistance or guaranteed holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30mm Neodymium ring magnet, 30x10x4mm Rare Earth magnet, N42 circular magnet with hole, 30mm OD ring magnet, annular Neodymium magnet or flat magnetic ring\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product offers a versatile solution for custom magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're designing a magnetic coupling, developing an industrial fixture, manufacturing a specialised component or creating a custom magnetic mounting system, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 30mm OD x 10mm ID x 4mm H | N42\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides high-energy permanent magnetic material in a practical annular design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN42 Neodymium Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-strength Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e30mm Outer Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Practical circular magnetic profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e10mm Inner Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Central through-hole for compatible mounting components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e4mm Height:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Slim, low-profile ring construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-energy permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows suitable shafts or components to pass through the centre.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh Magnetic Energy Density:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Strong magnetic properties relative to size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetism:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No batteries or electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStraight Central Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for custom mounting arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact Installation Profile:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful where available depth is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEngineering Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for precision components and magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCustom Mounting Potential:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can be incorporated into suitable housings or bonded assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Magnetic Component:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to manufacturing, research and product development.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Mounting Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate the ring magnet into suitable mounting systems where a central opening is required for compatible hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Couplings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in appropriately engineered magnetic coupling arrangements where the magnet's geometry and field orientation meet the design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into specialised mechanical assemblies requiring a circular permanent magnet with a central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSensors and Electronics\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in compatible magnetic sensing systems after verifying the magnetisation direction and magnetic field characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIndustrial Equipment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into custom machinery and manufacturing components requiring a compact ring-shaped magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Manufacturing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into specialised products where the central opening accommodates a shaft, spacer or mechanical component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Fixtures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDevelop suitable magnetic positioning, alignment and retention systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eResearch and Development\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in controlled magnetic experiments, engineering prototypes and custom magnetic circuit designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eModel Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into detailed mechanical models and specialised miniature assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCombine with suitable ferromagnetic components, housings and fixtures to create application-specific magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose a 30mm x 10mm x 4mm N42 Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003ePractical Central Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 10mm inner diameter provides clearance for compatible mounting components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-Profile Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 4mm thickness is useful for shallow assemblies and compact magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42 Neodymium offers strong magnetic material properties compared with conventional Ferrite magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Annular Shape\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring design provides an alternative to solid disc magnets when a central opening is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo electrical power is required to maintain the magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEngineering Flexibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for a wide variety of industrial, technical and custom magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Category\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN42\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOuter Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInner Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStraight Through-Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Radial Ring Width\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Annular Face Area\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 628.32mm²\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Material Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 2,513.27mm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEstimated Magnet Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 18.85g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtective Coating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturing Tolerance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Assemblies, Engineering, Fixtures and Custom Mounting\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eEstimated weight is calculated using a representative NdFeB density of 7.5g\/cm³ and is not a measured product specification.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOuter Diameter – 30mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has an overall outside diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, measured across the widest point of the circular body.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInner Diameter – 10mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm in diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing compatible shafts, spacers or mounting components to pass through the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 4mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making it suitable for relatively shallow mounting arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Ring Width\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial width of the magnetic material between the inner and outer edges is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e(30mm − 10mm) ÷ 2 = 10mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAnnular Face Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal area of one flat ring face is calculated by subtracting the central hole area from the outer circular area:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eπ × (15mm² − 5mm²) = approximately 628.32mm²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMaterial Volume\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal magnetic material volume is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e628.32mm² × 4mm = approximately 2,513.27mm³\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEquivalent to approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2.513cm³\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEstimated Weight\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUsing a representative Neodymium magnet density of 7.5g\/cm³:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2.513cm³ × 7.5g\/cm³ = approximately 18.85 grams\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual weight may vary due to manufacturing tolerances, material composition and coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is an N42 Neodymium Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAn \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42 Neodymium magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a permanent Rare Earth magnet manufactured from Neodymium Iron Boron material with an N42 magnetic grade classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN42 generally corresponds to a maximum energy product of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e40–43 MGOe\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, depending on the applicable material specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis indicates the magnetic material's energy capability rather than a guaranteed pull force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN42 magnets are widely used in industrial, commercial and technical applications where high magnetic energy density is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is a Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a circular permanent magnet with a central hole extending through its thickness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets are also known as annular magnets or magnetic rings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening makes them suitable for applications involving shafts, mounting components, spacers and custom magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey are commonly used in engineering, manufacturing, magnetic sensing systems, fixtures and research applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTheir performance depends on magnetic grade, magnetisation direction, geometry and the surrounding magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does a Neodymium Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Iron Boron material produces a permanent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on the magnetisation direction, the magnetic poles may be positioned on opposing flat ring faces, across the diameter or in another specified configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor an axially magnetised ring magnet, the north and south poles are located on opposite flat annular faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor a diametrically magnetised ring magnet, the poles are positioned across the diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe magnetisation direction of this particular product has not been specified and should be confirmed before use in applications requiring a defined magnetic field orientation.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding Magnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eAxial Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is magnetised through its 4mm height, with poles on opposing flat ring faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDiametric Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is magnetised across its diameter, with poles positioned on opposite sides of the ring.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Magnetisation Matters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction determines the magnetic field distribution and influences suitability for magnetic couplings, sensors, fixtures and custom assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDo not assume a particular pole arrangement without confirmation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of N42 Neodymium Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42 Neodymium provides strong magnetic material properties in a compact component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Mounting Opening\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 10mm hole accommodates compatible mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSlim Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 4mm height is useful where installation depth is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Field\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo electrical power is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Engineering Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe annular design suits a wide range of technical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Assembly Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for incorporation into appropriately engineered magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN42 vs Other Neodymium Grades\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eGrade\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eApproximate Maximum Energy Product\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e33–36 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN38\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e36–39 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eN42\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e40–43 MGOe\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN45\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e43–46 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN48\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e46–49 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48–51 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN52\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50–53 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eHigher magnetic grades generally offer greater maximum magnetic energy density, but actual holding strength also depends on the magnet's dimensions, magnetisation direction and application conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRing Magnets vs Disc Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eRing Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDisc Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCircular with Central Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSolid Circular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Options\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCan Accommodate Compatible Components Through Centre\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRequires Alternative Mounting\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReduced by Central Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFull Circular Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eShafts, Fixtures, Custom Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eClosures, Displays, General Holding\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Grade and Geometry\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Grade and Geometry\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eA ring magnet is often preferred where a central opening is essential to the mechanical design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install or Use the N42 Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check the 30mm outer diameter, 10mm hole diameter and 4mm height.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Magnetisation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnetic pole orientation required for the application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, chips or coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the receiving components are clean and correctly aligned.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Hole Clearance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the shaft or mounting component fits without excessive force.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect a Suitable Mounting Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use an appropriate housing, adhesive or engineered retaining arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not overtighten fixings or apply concentrated mechanical loads to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Prevent uncontrolled contact with steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Alignment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnet is positioned correctly within the assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify magnetic holding strength and mechanical stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect Regularly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for movement, corrosion or physical damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHandle Safely:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep powerful magnets away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Holding Strength\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42 identifies the magnetic material's energy classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe pole orientation influences the magnetic field and holding characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Steel\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel thickness, composition and geometry affect magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps between the magnet and receiving material can reduce holding strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContact Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe available magnetic contact area influences performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 10mm opening reduces the magnetic material volume compared with a solid disc of the same outside dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSurface Coatings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePaint, plating and other layers may introduce additional separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLoad Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDirect pull and sideways sliding loads produce different holding characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExcessive heat can permanently reduce magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Damage\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eChips, cracks or coating damage may affect reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent chipping or cracking.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid uncontrolled collisions with steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not overtighten mounting hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid applying concentrated pressure around the central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtect from excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep dry where corrosion resistance has not been verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore away from magnetically sensitive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for cracks or coating damage before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse suitable housings and mounting methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify performance before demanding applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract ferromagnetic objects unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets may chip, crack or shatter under impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep fingers clear when magnets approach steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSwallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Powerful magnets can cause serious internal injuries if swallowed. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers and magnetically sensitive implanted medical devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with sensitive electronics, sensors and equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Stress:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not use the central hole as a means of applying excessive fastening pressure directly to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCorrosion Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The protective coating has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent engineering assessment and testing are required before use where failure could cause injury or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat are the dimensions of this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30mm outer diameter, 10mm inner diameter and 4mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat material is it made from?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from Neodymium Iron Boron (NdFeB).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a Rare Earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium is a Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outer diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outer diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the hole diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the thickness?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the estimated weight?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eApproximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18.85g\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, calculated using representative NdFeB density.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it diametrically magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA pull-force rating has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe surface Gauss rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does it have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe protective coating has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N42 a strong magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. N42 is a high-energy Neodymium grade suitable for compact permanent magnet applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N42 stronger than N35?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42 generally has a higher maximum energy product than N35, although actual holding performance depends on magnet design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N52 stronger than N42?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN52 generally has a higher maximum energy product, but the finished magnet's performance depends on geometry and application conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use the hole for mounting?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, the central opening can accommodate compatible mounting components, provided the assembly does not apply damaging pressure to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the hole countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo countersink has been specified. The product is described as having a straight 10mm central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for magnetic couplings?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, in appropriately engineered coupling systems with a suitable magnetic field orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for magnetic sensors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, in compatible applications after confirming the magnetisation direction and magnetic field characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for precision engineering?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Its ring geometry makes it suitable for specialised magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. It attracts suitable ferromagnetic steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract aluminium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Aluminium is not ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly if the stainless steel grade is sufficiently magnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I glue the magnet into a recess?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, potentially, using an adhesive compatible with the magnet's coating and receiving material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets are brittle and should not be drilled or machined.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it outdoors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet suitable for children?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Powerful Neodymium magnets must be kept away from children.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly after appropriate engineering verification, testing and compliance assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN42 Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Mounting Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom Magnetic Fixtures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 30mm OD x 10mm ID x 4mm H | N42\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-strength Rare Earth permanent magnet designed for engineering, manufacturing, magnetic assemblies and custom mounting applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e30mm in outer diameter, 10mm in inner diameter and 4mm in height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42-grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003estraight 10mm central through-hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe estimated weight is approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18.85g\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, calculated using representative NdFeB density. This is not a verified product weight.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specific magnetisation direction, pull force, surface Gauss, protective coating, maximum operating temperature and manufacturing tolerance have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on magnetisation, receiving steel, air gaps, contact area and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle by nature and must be handled carefully. Avoid impact, excessive mechanical pressure and direct machining. Powerful magnets present pinch, swallowing and medical device interference hazards. Independent testing is required before use in safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046727300,"sku":"R-OD30H4ID10","price":25.36,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/R-OD30H4ID10_sw__11417.jpg?v=1752624815"},{"product_id":"neodymium-ring-magnet-od5-x-h2-x-id2-mm-n45","title":"Neodymium Ring Magnet OD5mm x H2mm | Hole 2mm N45","description":"\u003ch2\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/h2\u003e\r\n\u003cp\u003eOutside Diameter: 5mm (0.197\" in.)\u003cbr\u003eHeight: 2mm (0.0787\" in.)\u003cbr\u003eInside Diameter: 2mm (0.0787\" in.\u003cbr\u003eGrade: N45\u003cbr\u003eCoating: Nickel (Ni)\u003cbr\u003eMagnetized Direction: Through height - 2mm\u003c\/p\u003e\r\n\u003ch3\u003e\u003cstrong\u003eProduct Description:\u003c\/strong\u003e\u003c\/h3\u003e\r\n\u003cp\u003eThe neodymium magnetic ring, also known as a rare earth ring magnet, has an outer diameter of 5mm, a height of 2mm and an inner diameter of 2mm. With grades ranging from N30 to N50, this N45 ring is a strong magnet ring with a strong magnetic force.\u003c\/p\u003e\r\n\u003cp\u003eNeodymium magnetic material offers the highest magnetic strength compared with other permanent magnetic materials. They have a wide range of uses. Because this tiny ring-shaped magnet is very strong for its size and weight, it can be integrated into small products to utilise the magnetic properties. The magnets can activate switches and circuitry as they interact with electromagnetic fields.\u003c\/p\u003e\r\n\u003cp\u003eOther uses include two of these small permanent magnets being used to create a magnetic bond between two surfaces. This would avoid the use of conventional attachment methods such as clips, pins or glue.\u003c\/p\u003e\r\n\u003cp\u003eThe rings can be used as magnetic folder closures for hobbyist scrapbooking or with commercial brochure manufacturers which are increasing in popularity. Jewellers and costume designers also find magnetic hold a practical and inexpensive option for their creations.\u003c\/p\u003e\r\n\u003cp\u003eThe ring shape of this magnet makes it easy to be attached to items using thread or wire. This is particularly handy and useful for those using them for crafting purposes.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046760068,"sku":"R-OD5H2ID2-N45","price":0.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od5h2id2-n45.jpg?v=1752624814"},{"product_id":"neodymium-ring-magnet-od5-x-h4-x-id2-5-mm-n42uh-diametrical-magnetized","title":"Neodymium Ring Magnet OD5mm x H4mm | Hole 2.5mm | N42UH | High Temperature ≤180ºC | Diametrically magnetized","description":"\u003cp data-start=\"206\" data-end=\"588\"\u003eThis Neodymium Ring Magnet has an outer diameter of 5mm, inner diameter of 2.5mm, and height of 4mm, delivering high magnetic strength in a compact form. Manufactured from premium N42UH grade neodymium, this ring magnet is engineered for high temperature resistance up to 180°C, making it ideal for demanding applications where consistent performance is essential.\u003c\/p\u003e\n\u003cp data-start=\"206\" data-end=\"588\"\u003eThis magnet is identified by product code 23023A.\u003c\/p\u003e\n\u003cp data-start=\"590\" data-end=\"941\"\u003eUnlike standard axially magnetised rings, this magnet is diametrically magnetised, meaning the north and south poles are located on opposite curved sides. This unique magnetisation pattern makes it highly suitable for rotor assemblies, sensing devices, couplings, and specialised engineering projects that require rotational magnetic fields.\u003c\/p\u003e\n\u003ch4 data-start=\"948\" data-end=\"966\"\u003eKey Features:\u003c\/h4\u003e\n\u003cp data-start=\"969\" data-end=\"1018\"\u003eDimensions: 5mm (OD) x 2.5mm (ID) x 4mm (H)\u003c\/p\u003e\n\u003cp data-start=\"1021\" data-end=\"1101\"\u003eGrade: N42UH Neodymium – high strength with elevated temperature stability\u003c\/p\u003e\n\u003cp data-start=\"1104\" data-end=\"1163\"\u003eDiametrically magnetised for specialised applications\u003c\/p\u003e\n\u003cp data-start=\"1166\" data-end=\"1207\"\u003eTemperature Resistance: Up to 180°C\u003c\/p\u003e\n\u003cp data-start=\"1210\" data-end=\"1257\"\u003eCompact size with powerful magnetic field\u003c\/p\u003e\n\u003ch4 data-start=\"1264\" data-end=\"1282\"\u003eApplications:\u003c\/h4\u003e\n\u003cp data-start=\"1285\" data-end=\"1366\"\u003eElectric Motors \u0026amp; Generators – effective in rotor and stator configurations.\u003c\/p\u003e\n\u003cp data-start=\"1369\" data-end=\"1455\"\u003eSensors \u0026amp; Encoders – precise diametrical polarity for advanced detection systems.\u003c\/p\u003e\n\u003cp data-start=\"1458\" data-end=\"1529\"\u003eMagnetic Couplings – efficient torque transfer in confined spaces.\u003c\/p\u003e\n\u003cp data-start=\"1532\" data-end=\"1626\"\u003eEngineering Prototyping – custom builds requiring high strength at elevated temperatures.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296046792836,"sku":"23023A","price":2.01,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/R-OD5H4ID2.5-N42UH-SM_72b47ec2-cc5a-4495-9d15-3a9a712574c4.png?v=1781863849"},{"product_id":"neodymium-countersunk-ring-magnet-od22-5-x-h3-x-id4-mm-n45","title":"Neodymium Countersunk Ring Magnet OD22.5mm x H3mm | C\/sunk Hole 4mm N45","description":"\u003cp\u003eThis Countersunk Neodymium Magnet has an outside diameter of 22.5 mm, an inner diameter of 4mm, a thickness of 3mm and a 90 degree countersunk shaft. This Nickel plated Rare Earth countersunk ring has a powerful N45 grade and a pull force of 4.42kgs.\u003c\/p\u003e\r\n\u003cp\u003eThe countersunk hole allows straightforward attachment to almost any material such as wood, plastic and masonry, to name just a few. Simple to attach with a flat head screw, the tapering screw head sits flush inside the countersunk magnet for seamless professional finish. These magnets can also be recessed into timber or plastic and secured with a countersunk screw for a permanent result without the need to use messy glue. Glue can perish or discolour with age however screws stay true, making them the ultimate fixing solution.\u003c\/p\u003e\r\n\u003cp\u003eCountersunk magnets are very popular with Tradespeople and Fabricators because of their range and versatility. Adaptable and reliable, they are an essential instrument, always in stock in every tradie’s toolbox.\u003c\/p\u003e\r\n\u003cp\u003eThese are fantastic for DIY door latches, simply recess the countersunk magnet into your door frame and attach a metal strip or strike plate to the door. Countersunk magnets are useful for a whole range applications, remediating an assortment of issues around the garage, home or worksite.\u003c\/p\u003e\r\n\u003cp\u003eRare Earth Neodymium magnets are the strongest permanent magnets commercially available and are the ideal magnet if you require maximum magnetic strength. They are many times stronger than traditional magnets and come in a huge range of sizes, shapes and grades. Rare Earth magnets are magnetically stable and have a strong resistance to demagnetization however they are not suitable for use in high temperature applications.\u003c\/p\u003e\r\n\u003cp\u003eDue to their greater strength to size ratio, Neodymium magnets have now replaced Alnicos and Ferrites in many engineering and mechanical industries. Being smaller and lighter than traditional magnets they are ideal for applications such as, bearings, speakers and headphones, hard disks, wind turbines and electric cars to name just a few.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296048234628,"sku":"R-OD22.5H3ID4(90deg)-N45","price":8.22,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od22.5h3id4_90deg_-n45.jpg?v=1752624780"},{"product_id":"neodymium-ring-magnet-od76-2-x-h12-7-x-id25-4-mm-n35","title":"Neodymium Ring Magnet  OD76.2mm x H12.7mm | Hole 25.4mm N35","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 76.2mm OD x 12.7mm H | 25.4mm Hole | N35\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 76.2mm Outer Diameter x 12.7mm Height with a 25.4mm Centre Hole | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a powerful, large-diameter rare earth magnet designed for industrial, engineering and custom magnetic applications requiring strong permanent magnetic attraction and a substantial central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this circular ring magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e76.2mm outer diameter, 25.4mm inner hole diameter and 12.7mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Its robust ring-shaped construction provides a substantial magnetic component suitable for integration into mechanical assemblies, industrial equipment, magnetic holding systems and specialised engineering projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25.4mm central through-hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides clearance for compatible shafts, rods, mounting components or other mechanical elements, depending on the application. This makes the magnet particularly useful for custom assemblies where a central opening is required without drilling or modifying the magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35 neodymium magnets offer high magnetic energy density compared with conventional ferrite magnets, providing strong magnetic performance relative to their size. Their permanent magnetic properties make them suitable for applications requiring continuous magnetic attraction without electricity, batteries or external power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eindustrial machinery, magnetic positioning, mechanical assemblies, equipment manufacturing, magnetic retention, product development and OEM applications\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this N35 neodymium ring magnet offers a versatile solution for specialised magnetic projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e76.2mm neodymium ring magnet, N35 rare earth ring magnet, 3-inch neodymium ring magnet, 76.2mm OD magnet with 25.4mm hole, large neodymium washer magnet or circular NdFeB ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is designed for applications where a substantial magnetic ring and central mounting clearance are required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOuter Diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 76.2mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInner Diameter (ID):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 25.4mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeight \/ Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12.7mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMagnetic Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Circular ring\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMagnet Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare Earth Permanent Magnet\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge 76.2mm (3-inch) outer diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e25.4mm (1-inch) central through-hole\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSubstantial 12.7mm (1\/2-inch) thickness\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh magnetic energy density\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for industrial and engineering applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUseful for custom magnetic assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCan accommodate compatible central mounting components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for magnetic positioning and retention systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePermanent magnetic operation without external power\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis N35 neodymium ring magnet may be suitable for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial machinery and equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom magnetic assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEngineering projects\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic positioning systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic retention devices\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMechanical fixtures and jigs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEquipment housings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProduct development\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eResearch and development\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrototype assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOEM manufacturing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic coupling systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCircular alignment mechanisms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eShaft-mounted magnetic assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic holding applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLaboratory equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSpecialised manufacturing equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eApplication suitability depends on the magnetisation direction, magnetic circuit, installation geometry and required magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Grade Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis ring magnet is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a high-performance rare earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets provide high magnetic energy density compared with many conventional permanent magnet materials, allowing substantial magnetic performance from relatively compact components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat Does N35 Mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 identifies the magnetic material's energy classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe designation relates to the maximum energy product of the NdFeB material and helps distinguish it from other neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN35 does not mean this magnet has a 35kg pull force.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic holding strength depends on the magnet's dimensions, magnetisation direction, target material, magnetic circuit and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eLarge 76.2mm Diameter with 12.7mm Thickness\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe combination of a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e76.2mm outer diameter and 12.7mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e creates a substantial circular ring magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese dimensions are equivalent to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOuter Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3 inches\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInner Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1 inch\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1\/2 inch\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThis geometry may be useful for applications where:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA large magnetic ring is required\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA central opening must be maintained\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA substantial magnetic component is needed\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet must integrate into a circular mechanical assembly\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA permanent magnetic field is required around a central clearance hole\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a substantial profile suitable for assemblies where this depth can be accommodated.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, magnetic strength cannot be determined from dimensions alone and must be assessed in relation to the magnetisation configuration and complete magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e25.4mm Centre Hole for Assembly Integration\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25.4mm diameter central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a substantial opening through the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on the application, this opening may accommodate:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCompatible shafts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRods\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMounting hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSpacers\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBushings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAlignment components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom mechanical assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe centre hole is a straight opening rather than a confirmed countersunk fixing feature.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen mounting the magnet, avoid applying concentrated mechanical pressure directly to the brittle magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor applications involving fasteners, shafts or mechanical fixtures, provide suitable clearance and use an appropriate mounting arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Holding and Retention\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium ring magnets can be incorporated into magnetic holding systems where their geometry and magnetic performance are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRemovable equipment components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic closures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom fixtures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePositioning assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEquipment covers\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic retention systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial holding mechanisms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eHolding performance depends on the magnetic pole arrangement, target material, contact conditions and installation geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor applications involving vibration, shock or moving equipment, the complete assembly should be tested under realistic operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Positioning and Alignment\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe circular geometry and central opening of this magnet may make it useful in custom positioning and alignment systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePotential functions include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLocating circular components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAligning mechanical assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRetaining removable parts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAssisting repetitive positioning\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntegrating magnetic attraction into specialised equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSupporting custom shaft-centred magnetic designs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe suitability of this magnet for precision positioning depends on its actual magnetisation direction, dimensional tolerances and magnetic field characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium ring magnets can be manufactured with different magnetic orientations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCommon configurations include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAxial magnetisation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e North and south poles are located on the opposing flat circular faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDiametrical magnetisation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic polarity is oriented across the diameter of the ring.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe actual \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emagnetisation direction of this product has not been specified\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should be confirmed before use in applications requiring a particular pole orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction is especially important when designing magnetic couplings, alignment systems or assemblies containing multiple magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe practical magnetic performance of this N35 ring magnet depends on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic material properties\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOuter diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInner diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eThickness\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic circuit design\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTarget material\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTarget steel thickness\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eContact area\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSurface condition\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOperating temperature\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLoad direction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force or surface Gauss rating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese values should not be inferred from the N35 designation alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDirect Pull vs Shear Force\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic holding performance varies according to the direction of the applied load.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDirect pull\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is separated perpendicular to the attracting surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eShear loading\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is encouraged to slide parallel to the target surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShear performance may be influenced by surface friction, coatings, air gaps, vibration and mechanical leverage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhere the magnet is used for holding or retention, performance should be tested under the actual operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAir Gaps Reduce Magnetic Attraction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic attraction decreases as the distance between the magnet and target increases.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePotential sources of air gaps include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAdhesive\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePaint\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePowder coating\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePlastic housings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtective films\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMechanical clearance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSurface irregularities\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFor applications requiring maximum magnetic interaction, unnecessary separation should be minimised.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBonding and Installation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAdhesive bonding or installation within a suitably designed housing may be appropriate for this ring magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore installation:\u003c\/span\u003e\u003c\/p\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConfirm the magnetisation direction and polarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCheck the intended magnetic arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eClean the bonding surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRemove dust, oil and grease.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSelect an adhesive compatible with the magnet's actual coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConfirm suitability for the expected operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProvide appropriate clearance around the 25.4mm centre hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid force-fitting or excessive clamping pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAllow the adhesive to cure according to the manufacturer's instructions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003eThe exact coating or plating has not been supplied, so adhesive compatibility should be confirmed before permanent installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor safety-critical applications, suitable engineered mechanical retention may also be required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAvoid Mechanical Stress\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Iron Boron is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard but brittle magnetic material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDespite its substantial 12.7mm thickness, this ring magnet must be handled carefully to prevent damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAvoid:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDropping the magnet\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAllowing magnets to collide\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eApplying uneven pressure\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOvertightening fasteners\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eForce-fitting into housings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConcentrating pressure around the centre hole\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eExcessive mechanical stress may cause chipping, cracking or fracture.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDo Not Machine Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFinished neodymium magnets should not normally be mechanically modified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAvoid drilling, cutting, grinding, filing or machining the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese processes can damage the brittle NdFeB material and any protective coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf a different hole diameter, thickness or ring size is required, select a magnet manufactured to the required dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCompatible Magnetic Materials\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets attract suitable ferromagnetic materials, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIron\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMild steel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic steel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCompatible ferromagnetic components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThey do not effectively attract inherently non-magnetic materials such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAluminium\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBrass\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePlastic\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTimber\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGlass\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eMany stainless steel grades may also be weakly magnetic or non-magnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTest the intended target material where magnetic compatibility is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Neodymium vs Ferrite Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets generally provide higher magnetic energy density than conventional ferrite magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN35 neodymium may be preferred for:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCompact magnetic assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStrong magnetic performance relative to size\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEngineering components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom fixtures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic retention systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSpecialised industrial equipment\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFerrite magnets may be preferred for:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMore economical applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarger magnetic components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eApplications benefiting from natural corrosion resistance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDesigns where lower magnetic energy density is acceptable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe appropriate magnetic material depends on the required performance, environment and design constraints.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePermanent Magnetic Operation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis N35 ring magnet is a permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt requires:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNo electricity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNo batteries\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNo charging\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNo external power supply\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIts magnetic field remains continuously active during normal use.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet – 76.2mm OD x 12.7mm H | 25.4mm Hole | N35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCircular Ring\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOuter Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e76.2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInner Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25.4mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentre Hole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25.4mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.7mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e76.2mm OD x 25.4mm ID x 12.7mm H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eImperial Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3\" OD x 1\" ID x 1\/2\" H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Operation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePermanent\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Required\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNone\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Targets\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable ferromagnetic iron and steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEngineering, magnetic positioning, retention, machinery and OEM manufacturing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazards:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Large neodymium magnets can attract rapidly and forcefully to other magnets and ferromagnetic objects. Keep fingers and skin clear of contact points.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron is hard but brittle. Magnets can chip, crack or fracture if dropped, struck or allowed to collide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFlying Fragments:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Broken magnets may produce sharp fragments. Use appropriate protective equipment when handling powerful magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDo Not Machine:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid drilling, cutting, grinding or modifying the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets at an appropriate distance from pacemakers, implanted medical devices and magnetically sensitive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChildren:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets securely away from babies and children. Swallowed magnets can cause severe internal injuries and require urgent medical attention.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLifting Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This magnet is not certified lifting equipment and must not be used for overhead or safety-critical lifting.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat size is this neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet has a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e76.2mm outer diameter, 25.4mm centre hole diameter and 12.7mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese dimensions are equivalent to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3 inches OD x 1 inch ID x 1\/2 inch thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N35 mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 identifies the magnetic material grade of the Neodymium Iron Boron magnet. It relates to the material's magnetic energy classification rather than its pull force.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes N35 mean the magnet has a 35kg pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. N35 identifies the magnetic grade and does not indicate a 35kg pull force or lifting capacity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been supplied and should be confirmed before use in applications requiring a specific magnetic orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I put a shaft through the 25.4mm centre hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 25.4mm opening may accommodate compatible shafts or mounting components, provided appropriate clearance is allowed and the installation does not place excessive pressure on the brittle magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the centre hole countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA countersunk hole has not been specified. The product is described as having a 25.4mm centre hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this ring magnet be used for industrial applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt may be suitable for industrial machinery, positioning systems, fixtures and engineered assemblies where its dimensions and magnetic properties meet the application requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I glue this magnet into a housing?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdhesive bonding may be suitable, provided the adhesive and installation method are compatible with the magnet's actual coating and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be drilled or cut?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium is brittle and should not be drilled, cut, ground or machined.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill this magnet attract stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt depends on the stainless steel grade. Some stainless steels are ferromagnetic, while others are weakly magnetic or non-magnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eCustomers considering this product may also be interested in:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN35 Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Pot Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Temperature Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom-Made Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 76.2mm OD x 12.7mm H | 25.4mm Hole | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts dimensions are:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOuter diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 76.2mm (3 inches)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCentre hole diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 25.4mm (1 inch)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12.7mm (1\/2 inch)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation identifies the magnetic material grade and does not mean this magnet has a 35kg pull force\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force, surface Gauss rating, coating or plating, magnetisation direction, pole configuration, dimensional tolerance or maximum operating temperature\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on the magnetisation configuration, magnetic circuit, target material, target steel thickness, contact area, air gaps, load direction and installation geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard and brittle magnetic material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Handle carefully to avoid chipping, cracking or fracture.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot certified lifting equipment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should not be used for overhead or safety-critical lifting.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296051970180,"sku":"R-OD76.2H12.7ID25.4-N35","price":249.17,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od76.2h12.7id25.4-n35.png?v=1752624659"},{"product_id":"neodymium-ring-magnet-od63-5-x-h15-2-x-id35-5-mm-n52","title":"Neodymium Ring Magnet OD63.5mm x H15.2mm | Hole 35.56mm N52 I MADE TO ORDER","description":"\u003ch1\u003e\u003cspan\u003eNeodymium Ring Magnet – OD63.5mm x H15.2mm | Hole 35.56mm | N52 | Made to Order\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – OD63.5mm x H15.2mm | Hole 35.56mm | N52 | Made to Order\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a large, high-performance \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erare earth permanent ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. It measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e63.5mm outside diameter x 15.2mm high\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e35.56mm diameter central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing an annular magnetic geometry suitable for specialised engineering, manufacturing, machinery, research, prototype and custom OEM applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eManufactured \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eto order\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this ring magnet combines substantial physical dimensions with the high magnetic energy density associated with N52 neodymium. Its large central opening allows the magnet to be incorporated around suitably sized shafts, tubes, housings or other components where the required clearance and tolerances have been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ring-shaped geometry can also be useful in appropriately engineered \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emagnetic coupling, sensing, positioning, alignment and mechanical assembly applications\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, although suitability depends on the magnet's actual magnetisation direction, pole configuration and complete magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAlso known as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 neodymium ring magnet, rare earth ring magnet, NdFeB annular magnet, donut magnet, ring-shaped rare earth magnet or custom neodymium ring\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product provides permanent magnetic operation without electricity, batteries or charging.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutside diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 63.5mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight (H):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 15.2mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHole \/ inside diameter (ID):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 35.56mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ring \/ annular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N52\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnet type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare earth permanent magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Made to order\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLarge 63.5mm outside diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSubstantial 15.2mm height\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e35.56mm central through-hole\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh magnetic energy density\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for specialised engineering applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for machinery and equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for custom magnetic assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for research and prototype development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for OEM applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePermanent magnetic operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo electricity, batteries or charging required\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEngineering\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndustrial equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMachinery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom magnetic assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic sensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic coupling systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFixtures and jigs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEquipment housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResearch and development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLaboratory equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom-designed machinery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM magnetic systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eLarge N52 Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis made-to-order magnet has the following principal dimensions:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e63.5mm outside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e35.56mm inside diameter \/ hole\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e15.2mm height\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis creates a substantial annular magnetic component with a large central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ring geometry can provide useful integration possibilities in mechanical and magnetic systems where a solid disc magnet would interfere with another component passing through the centre of the assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe supplied dimensions describe the physical geometry of the magnet and do not represent its pull force, holding capacity or safe working load.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMade-to-Order Neodymium Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis product is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emade to order\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e rather than a standard off-the-shelf magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMade-to-order magnetic components can be useful for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSpecialised machinery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom product development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePurpose-designed magnetic systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResearch projects\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM manufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplacement components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApplication-specific engineering\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBecause this magnet is manufactured to order, production requirements should be confirmed before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRelevant considerations may include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRequired quantity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCoating or plating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensional tolerances\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating environment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTemperature requirements\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduction lead time\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere any of these specifications are critical, they should be confirmed as part of the order.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN52 Grade Neodymium\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis ring magnet is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a high-performance rare earth permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN52 is among the highest commonly available commercial NdFeB grades and offers very high magnetic energy density.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis can be advantageous where:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigh magnetic performance is required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable installation space is limited\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong magnetic fields are required from compact magnetic material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA high-performance custom magnetic assembly is being designed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic performance relative to magnet volume is important\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe N52 designation refers to the magnetic material grade and should not be confused with a pull-force rating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does N52 Mean?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN52 identifies the magnetic grade of the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe numerical designation relates to the material's maximum energy product and is used to classify the magnetic performance potential of NdFeB materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 designation does not mean this magnet has a 52kg pull force\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN52 also does not directly specify:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePull force\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHolding capacity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSafe working load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaximum operating temperature\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese characteristics depend on the finished magnet and the complete magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e35.56mm Central Hole\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe magnet incorporates a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e35.56mm diameter central through-hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, creating its ring or annular geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis central opening can be useful where the magnet needs to fit around or provide clearance for another component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential applications may involve:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eShafts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpindles\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStructural components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom fixtures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic coupling systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHowever, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e35.56mm hole diameter does not automatically mean the magnet is suitable for a 35.56mm shaft, tube or other component\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual compatibility depends on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eComponent dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet dimensional tolerance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eShaft or tube tolerance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRequired running clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThermal expansion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAssembly method\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAdequate clearance is particularly important because neodymium is brittle and should not be force-fitted.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRing Magnet Geometry\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRing magnets can provide design advantages where magnetic material is required around a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDepending on the application and magnetisation configuration, ring magnets may be incorporated into:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRotating assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic couplings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom machinery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLaboratory equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe presence of a central hole alone does not determine how the magnet's field is oriented. Magnetisation configuration must be considered separately.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRing magnets can be manufactured with several different magnetisation configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDepending on how it is manufactured, a ring magnet may potentially be:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAxially magnetised through its 15.2mm height\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDiametrically magnetised across its diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRadially magnetised\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMultipole magnetised\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufactured with another specialised pole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe actual \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emagnetisation direction and pole configuration have not been supplied\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should not be assumed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis specification is particularly important for magnetic coupling, sensing, rotation and positioning applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Coupling Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRing magnets are often considered for magnetic coupling systems because their annular geometry can accommodate shafts or other central components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential systems may include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eContactless coupling mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRotating assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSealed mechanical systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDrive components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom machinery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHowever, suitability for magnetic coupling depends heavily on the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emagnetisation direction, pole arrangement, air gap, opposing magnetic component, torque requirements and mechanical geometry\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ring shape alone does not guarantee suitability for a particular coupling design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSensors and Position Detection\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N52 ring magnet may also be suitable for appropriately designed sensing applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential uses include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePosition detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProximity sensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRotation sensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic switching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEquipment monitoring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstrumentation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSensor response depends on factors including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor sensitivity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor-to-magnet distance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurrounding ferromagnetic materials\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConfirm the magnetic field configuration before designing the magnet into a sensor system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePractical magnetic performance depends on significantly more than the N52 grade.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eImportant factors include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eN52 material properties\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRing geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic circuit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOpposing magnet or target material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget steel thickness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface coatings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLoad direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical leverage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force or magnetic flux density in Gauss\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese values should not be estimated from the N52 grade or physical dimensions alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN52 Does Not Mean 52kg Pull Force\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 designation is a material grade, not a pull-force rating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA magnet's pull force is determined under specific test conditions and can vary substantially according to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnet geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget steel thickness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTest method\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA verified pull-force specification should be used where holding performance is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDirect Pull vs Shear Force\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf this ring magnet is used against ferromagnetic steel, practical holding performance will depend on the direction of the load.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDirect pull\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is separated perpendicular to the target surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eShear loading\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is encouraged to slide parallel to the target surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eShear performance is affected by factors such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSurface friction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact quality\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCoatings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical leverage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation orientation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTesting should reproduce the actual operating conditions where magnetic holding is critical.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAir Gaps and Magnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAir gaps can substantially reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential sources of separation include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePaint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePowder coating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdhesive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlastic housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProtective films\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct casings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDirt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRust\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMagnetic coupling applications may intentionally contain an air gap, in which case the complete magnetic system should be designed around the required separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBonding a Large Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAdhesive bonding may be suitable for some assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBefore bonding:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eConfirm magnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfirm polarity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean the magnet and bonding surface\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemove grease, dust and contamination\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSelect an adhesive compatible with the magnet's actual coating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProvide suitable dimensional clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvoid force-fitting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllow the adhesive to cure correctly\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe exact \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecoating or plating has not been supplied\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, so adhesive compatibility should be confirmed before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAvoid Force-Fitting Through the Central Hole\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium Iron Boron is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard but brittle\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe 35.56mm central hole should not be force-fitted over an oversized shaft, tube, pin or other component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMechanical interference can create concentrated stress around the inside diameter and cause:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eChipping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCracking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFracturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface coating damage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComplete magnet failure\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eProvide suitable clearance between the magnet and mating mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDo Not Machine Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFinished neodymium magnets should not be modified using conventional machining processes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAvoid:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDrilling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnlarging the central hole\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCutting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGrinding\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReaming\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCrushing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMachining\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese processes can fracture the brittle NdFeB material and damage any protective coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf another hole diameter or overall dimension is required, the magnet should be manufactured to the required specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCompatible Target Materials\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere this magnet is intended to attract a metal target, it requires a suitable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eferromagnetic material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMild steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIron\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible ferromagnetic components\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium magnets do not effectively attract inherently non-magnetic materials such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAluminium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBrass\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTimber\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGlass\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMany stainless steel grades may also be weakly magnetic or non-magnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTest the actual target material where compatibility is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN52 Neodymium vs Ferrite Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN52 neodymium and ferrite ring magnets provide different characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eN52 neodymium generally provides:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMuch higher magnetic energy density\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong magnetic performance relative to size\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdvantages where installation space is restricted\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitability for high-performance engineered magnetic systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFerrite generally provides:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLower material cost\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGood natural corrosion resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGood resistance to demagnetisation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitability where larger magnet dimensions are acceptable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN52 neodymium is particularly useful where \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehigh magnetic performance relative to the available magnet volume\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePermanent Magnetic Operation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N52 ring magnet is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epermanent magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt requires:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eNo electricity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo charging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo external power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts magnetic field remains continuously active during normal operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Name:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Ring Magnet – OD63.5mm x H15.2mm | Hole 35.56mm | N52 | Made to Order\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Made-to-Order Neodymium Ring Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eAlternative Names:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N52 Neodymium Ring Magnet, Rare Earth Ring Magnet, NdFeB Annular Magnet, Donut Magnet, Custom Neodymium Ring, Ring-Shaped Rare Earth Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutside Diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 63.5mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInside Diameter \/ Hole (ID):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 35.56mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight (H):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 15.2mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ring \/ Annular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N52\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Made to order\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnet Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare Earth Permanent Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Permanent\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePower Required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e None\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePrimary Functions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic attraction, coupling, positioning, alignment, sensing and product integration\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTypical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engineering, manufacturing, machinery, custom equipment, research, prototypes and OEM magnetic systems\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSafety and Handling\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003elarge N52 neodymium magnet capable of producing substantial magnetic attraction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should be handled with appropriate care.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eLarge neodymium magnets can accelerate rapidly toward steel objects or other magnets and may cause:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSevere pinching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTrapped fingers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCrushing injuries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet collisions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChipping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCracking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFragmentation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep hands and other body parts clear when bringing the magnet near ferromagnetic objects or other strong magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEye protection may be appropriate where accidental magnet collision or fragmentation is possible.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep strong permanent magnets an appropriate distance from:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePacemakers and implanted medical devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic cards\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic storage media\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetically sensitive instruments\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensitive electronic equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep strong magnets securely away from children.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis product is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emade-to-order N52 Neodymium Ring Magnet measuring 63.5mm outside diameter x 15.2mm high with a 35.56mm diameter central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, manufactured from Neodymium Iron Boron (NdFeB) rare earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 designation identifies the magnetic material grade and does not mean the magnet has a 52kg pull force\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e35.56mm hole dimension does not automatically indicate compatibility with a 35.56mm shaft, tube or other mechanical component\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Appropriate tolerances and installation clearance must be considered.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force, Gauss rating, coating or plating, magnetisation direction, pole configuration, dimensional tolerance, maximum operating temperature, minimum order quantity or production lead time\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied and these specifications should not be assumed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBecause this product is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emade to order\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, critical specifications such as magnetisation, coating, tolerances, operating conditions, quantity and production requirements should be confirmed before manufacture.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual magnetic performance depends on the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 material properties, ring geometry, magnetisation configuration, magnetic circuit, target or opposing magnet, contact area, air gaps, target steel thickness, surface condition, load direction and installation geometry\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard and brittle magnetic material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Avoid impact, force-fitting, excessive mechanical loading, drilling, cutting, grinding, reaming or machining.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe stated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e63.5mm OD x 35.56mm ID x 15.2mm H dimensions describe the physical geometry of the magnet and do not represent its pull force, holding capacity or safe working load\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot certified lifting equipment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should not be used for overhead or safety-critical lifting.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296052134020,"sku":"R-OD2.5inH0.6inID1.4in-N52","price":124.37,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/R-OD2.5_22H0.6_22ID1.4_22__78670.jpg?v=1752624650"},{"product_id":"neodymium-ring-magnet-od12-7-x-h3-175-x-id3-175-mm-n45","title":"Neodymium Ring Magnet OD12.7mm x H3.175mm | Hole 3.175mm N45","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 12.7mm OD x 3.175mm ID x 3.175mm H | N45 Rare Earth Magnet\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 12.7mm Outside Diameter x 3.175mm Inside Diameter x 3.175mm Height | N45\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact, high-strength Rare Earth magnet designed for precision engineering, magnetic assemblies, electronics, product development, manufacturing and DIY applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN45-grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this permanent ring magnet offers high magnetic energy density in a small, practical form.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eoutside diameter of 12.7mm (½ inch)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecentral hole diameter of 3.175mm (⅛ inch)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eheight of 3.175mm (⅛ inch)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this magnet combines a compact circular profile with a convenient central opening for compatible mounting and assembly applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped design makes this magnet particularly useful where a central clearance hole is required for a shaft, pin, rod, locating component or other suitable assembly feature.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN45 magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides strong magnetic performance relative to the magnet's size, making it suitable for applications where space is limited but magnetic attraction is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are among the strongest commercially available permanent magnet materials and are widely used across engineering, electronics, manufacturing, research and consumer product applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional Ferrite magnets, N45 Neodymium magnets provide significantly higher magnetic energy density, allowing compact components to deliver substantial magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm outside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a practical mounting footprint, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides an opening that may be incorporated into custom fixtures, magnetic mechanisms and precision assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet's \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e gives it a relatively low-profile construction suitable for compact designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets are commonly used in magnetic couplings, sensor assemblies, small mechanisms, product prototypes, magnetic closures and specialised industrial equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey may also be incorporated into educational demonstrations, research projects and custom magnetic devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole can simplify alignment within a mechanical assembly, although the magnet should not be subjected to excessive clamping pressure or mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are brittle by nature and may crack or chip if drilled, struck, overtightened or allowed to collide forcefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN45 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e identifies the magnet's material performance classification rather than a guaranteed pull-force rating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic holding strength depends on the magnetisation direction, receiving steel, contact area, air gaps, surface coatings and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specific magnetisation direction, pull force, surface Gauss, protective coating and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese characteristics should be confirmed before use in applications requiring precise magnetic field orientation or verified holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm Neodymium ring magnet, ½-inch Rare Earth ring magnet, N45 ring magnet, small Neodymium washer magnet, 12.7mm OD magnetic ring or ⅛-inch hole Neodymium magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product offers a versatile magnetic component for technical and general-purpose applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're designing a compact magnetic assembly, developing a prototype, creating a magnetic closure or incorporating a ring magnet into precision equipment, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 12.7mm OD x 3.175mm ID x 3.175mm H | N45\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a compact permanent magnetic solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN45 Neodymium Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-strength Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact ½-inch circular profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm Central Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Nominal ⅛-inch opening for compatible assembly components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm Height:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Low-profile ⅛-inch thickness.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for applications requiring central clearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh Magnetic Energy Density:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Strong magnetic properties relative to size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetism:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for space-restricted designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrecision Assembly Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for compatible shafts, pins and locating components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEngineering Versatility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for magnetic mechanisms and custom assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronics Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to appropriately designed electronic and sensor systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrototyping Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for product development and magnetic experiments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCustom Mounting Potential:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Central opening can assist with positioning and alignment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReusable Magnetic Component:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides permanent magnetic properties when handled correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate the ring magnet into compact mechanical assemblies requiring a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Couplings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in appropriately designed magnetic coupling systems where the magnetisation pattern and magnetic circuit are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSensor Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into compatible magnetic sensing systems after confirming the required field orientation and strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectronics and Devices\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in specialised electronic assemblies where compact permanent magnets are required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Closures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDevelop small magnetic fastening and closure systems for suitable products.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Prototyping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTest magnetic concepts during research, design and product development.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eModel Making\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in detailed models and miniature assemblies requiring compact magnetic components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Positioning\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into custom positioning or alignment systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEducational Experiments\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDemonstrate permanent magnetism and magnetic attraction under appropriate supervision.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom DIY Projects\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCreate specialised magnetic fixtures, mechanisms and small assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N45 Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN45 Neodymium provides strong magnetic properties in a compact form.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eConvenient Central Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 3.175mm opening offers useful assembly and positioning possibilities.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact 12.7mm Diameter\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for applications with limited available space.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-Profile 3.175mm Height\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe relatively thin construction allows integration into compact designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo batteries or external electrical power are required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Engineering Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful across product development, electronics, manufacturing and custom magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Category\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN45\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular Disc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.7mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInside Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.175mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Hole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.175mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.175mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Outside Diameter in Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e½ inch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Hole Diameter in Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e⅛ inch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Height in Inches\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e⅛ inch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Radial Wall Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.7625mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Annular Face Area\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 118.8mm²\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Material Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 377.3mm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEstimated Magnet Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 2.83g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtective Coating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturing Tolerance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEngineering, Electronics, Prototyping and Magnetic Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eEstimated weight is calculated using a representative NdFeB density of 7.5g\/cm³ and is not a measured product specification.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Ring Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOutside Diameter – 12.7mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has a nominal outside diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, equivalent to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e½ inch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis measurement represents the overall width across the circular magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInside Diameter – 3.175mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole has a nominal diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, equivalent to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e⅛ inch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe hole provides clearance for compatible mounting or positioning components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 3.175mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has a nominal height of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, equivalent to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e⅛ inch\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Wall Thickness\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal radial wall thickness is calculated as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e(12.7mm − 3.175mm) ÷ 2 = 4.7625mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis represents the material between the central hole and outside edge on each side.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAnnular Face Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal annular face area is approximately:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e118.8mm²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is the area of one flat ring face, excluding the central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMaterial Volume\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal magnet material volume is approximately:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e377.3mm³\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, equivalent to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.3773cm³\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEstimated Weight\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUsing a representative Neodymium magnet density of 7.5g\/cm³, the estimated weight is approximately:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2.83 grams\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual weight may vary due to manufacturing tolerances, material composition and coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is an N45 Neodymium Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAn \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN45 Neodymium magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a permanent Rare Earth magnet manufactured from Neodymium Iron Boron material with an N45 magnetic grade classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe N45 grade indicates a maximum energy product generally in the range of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e43–46 MGOe\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, depending on the applicable material specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis classification describes the magnetic material's energy capability rather than the finished magnet's direct pull force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN45 magnets are commonly used in engineering, electronics, manufacturing and other applications requiring compact magnetic components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is a Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a permanent magnet with a circular outside profile and a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring geometry can accommodate compatible shafts, pins, rods or locating features.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets are commonly used in magnetic couplings, sensors, mechanical assemblies, motors and specialised equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTheir performance depends on the magnetisation direction, magnetic grade, geometry and surrounding magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does an N45 Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Neodymium material generates a permanent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on the magnetisation direction, the north and south poles may be positioned on the flat faces, around the circumference or in another specified configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor an axially magnetised ring magnet, the poles are located on opposite flat faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor a diametrically magnetised ring magnet, the poles are positioned across the diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOther magnetisation arrangements may also be possible.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe magnetisation direction of this particular product has not been specified and should be confirmed before use in directional magnetic assemblies.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding Magnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eAxial Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMagnetised through the height, with poles on opposite flat faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDiametric Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMagnetised across the diameter, with poles positioned on opposite sides of the ring.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMagnetised through the radial direction in a specialised configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Magnetisation Matters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction determines the magnetic field distribution and influences suitability for sensors, couplings, motors and other assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDo not assume a particular magnetisation direction without confirmation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of N45 Neodymium Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh magnetic energy density in a small component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Mounting Clearance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe hole can accommodate compatible assembly features.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Field\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEngineering Flexibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for a variety of technical designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful in compact mechanisms and specialised equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReusable Magnetic Component\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCan be incorporated into assemblies requiring permanent magnetic properties.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN45 vs Other Neodymium Grades\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eGrade\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eApproximate Maximum Energy Product\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e33–36 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN38\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e36–39 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN42\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40–43 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eN45\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e43–46 MGOe\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN48\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e46–49 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48–51 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN52\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50–53 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eHigher grades generally provide greater maximum magnetic energy density, but the finished magnet's pull force also depends on geometry, magnetisation and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRing Magnets vs Disc Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eRing Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSolid Disc Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCircular with Central Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSolid Circular Disc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShaft or Pin Clearance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePossible\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Inherent\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial Volume at Same OD and Height\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLower\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigher\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Possibilities\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Alignment Features\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAdhesive or External Retention\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCouplings, Sensors, Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eClosures, Fixtures, General Holding\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eThe best choice depends on the required geometry, magnetic field and mounting arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install or Use the N45 Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check the 12.7mm OD, 3.175mm hole and 3.175mm height.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Magnetisation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the required magnetic pole orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for chips, cracks or coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure all components are clean and correctly aligned.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Hole Clearance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm compatibility with the intended pin, shaft or locating component.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not overtighten or mechanically stress the brittle magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Prevent sudden collisions with steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUse Suitable Retention:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select an appropriate adhesive, housing or mechanical arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Magnetic Alignment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnetic field suits the intended application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify holding performance and mechanical stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect Regularly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for damage or movement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProtect from Excessive Heat:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid temperatures beyond the verified operating limit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Holding Strength\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN45 identifies the magnetic material's energy classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe pole orientation influences the magnetic field and attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Steel\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel composition, thickness and geometry affect holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps can significantly reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContact Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe effective contact area influences holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSurface Coatings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePaint, plating and other layers can create additional separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLoad Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDirect pull and sideways sliding loads behave differently.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExcessive heat can reduce Neodymium magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Damage\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCracks, chips or coating damage may affect performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to avoid chipping or cracking.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrevent sudden collisions with other magnets or steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid drilling or machining the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not apply excessive clamping pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtect the magnet from moisture where coating suitability is unknown.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore away from magnetically sensitive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep the central hole free from debris.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for damage before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse suitable assembly methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid strong opposing magnetic fields.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify performance before demanding applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract ferromagnetic objects unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets may crack or chip under impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep fingers clear when magnets approach steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSwallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Small powerful magnets can cause life-threatening injuries if swallowed. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers and magnetically sensitive implanted medical devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with certain electronic devices and sensors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Stress:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid excessive pressure around the central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCorrosion Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The protective coating has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent engineering assessment and testing are required before use where failure could cause injury or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat are the dimensions of this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm outside diameter x 3.175mm inside diameter x 3.175mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN45 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat material is it made from?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from Neodymium Iron Boron (NdFeB).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a Rare Earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium is a Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outside diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outside diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm (½ inch)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the hole diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm (⅛ inch)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the magnet thickness?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe height is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.175mm (⅛ inch)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the radial wall thickness?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal radial wall thickness is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.7625mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the estimated weight?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eApproximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2.83g\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, calculated using representative NdFeB density.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it diametrically magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA pull-force rating has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe surface Gauss rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does it have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe protective coating has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N45 a strong magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. N45 is a high-energy Neodymium grade suitable for compact permanent magnet applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N45 stronger than N35?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN45 generally has a higher maximum energy product than N35, although actual holding performance depends on the magnet design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N52 stronger than N45?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN52 generally has a higher maximum energy product, but the finished magnet's performance depends on geometry and application conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use the central hole for mounting?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided the mounting method does not apply excessive stress to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use a screw through the hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA compatible screw or fastener may fit, but the magnet should not be directly overtightened or subjected to concentrated mechanical pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it in a sensor assembly?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, after confirming the magnetisation direction and magnetic field requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for a magnetic coupling?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, depending on the magnetic circuit and mechanical design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for electronics?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, in appropriately designed applications where magnetic interference is considered.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for model making?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Its compact size makes it suitable for compatible model-making projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. It attracts suitable ferromagnetic steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract aluminium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Aluminium is not ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly if the stainless steel grade is sufficiently magnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets are brittle and should not be drilled or machined.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it outdoors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet suitable for children?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSmall powerful magnets can be hazardous and should be kept away from children.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly after appropriate engineering verification, testing and compliance assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN45 Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSmall Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Coupling Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Sensor Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 12.7mm OD x 3.175mm ID x 3.175mm H | N45\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact Rare Earth permanent magnet designed for engineering, electronics, prototyping and custom magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm outside diameter, 3.175mm central hole diameter and 3.175mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN45-grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specific magnetisation direction, pull force, surface Gauss, protective coating, maximum operating temperature and manufacturing tolerance have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on magnetisation, receiving steel, air gaps, contact area and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle by nature and must be handled carefully. Avoid impact, excessive clamping pressure and direct machining. Independent testing is required before use in safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296053837956,"sku":"R-OD12.7H3.175ID3.175-N45","price":6.15,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od12.7h3.175id3.175-n45.png?v=1752624587"},{"product_id":"neodymium-ring-magnet-od5-x-h4-x-id2-5-mm-n52","title":"Neodymium Ring Magnet OD5mm x H4mm | Hole 2.5mm N52","description":"\u003cp\u003e\u003cb\u003eNeodymium Ring Magnets\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eCircular Neodymium ring magnets are very versatile magnets and are a popular shape with Frenergy customers. This ring magnet is also made from the strongest N52 Grade rare earth material which gives it unmatched holding power for a magnet of this size. The central hole in the ring has an inside diameter of 2.5mm and is ideal for temporarily affixing the ring to another surface with wire, string, a nail or screw. Sewing the ring magnet onto clothing or garments is another practical attachment option that is not available when using solid disc or block shaped magnets. Lightweight holding requirements are easily performed by these small and incredibly strong Neodymium ring magnets. This makes them ideal for holding and attachment roles in both complex audio visual and communication devices as well as simple, home based hobby projects. Ring shaped magnets can be held in position by placement over a pin, lug or shaft which means correct alignment of the ring magnet can be achieved inside these products without the need for fasteners of any kind. Simplified operating systems lead to increased reliability and this is one of the many benefits of the magnetically operated warning and sensor devices that are widely found in security alarms and vehicle safety systems.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296055181444,"sku":"R-OD5H4ID2.5-N52","price":1.41,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od5h4id2.5-n52.png?v=1752624548"},{"product_id":"neodymium-ring-magnet-od50-x-h5-x-id20-mm-n35","title":"Neodymium Ring Magnet OD50mm x H5mm | Hole 20mm N35","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – OD50mm x ID20mm x H5mm | N35\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 50mm Outer Diameter x 20mm Inner Diameter x 5mm Thickness | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a powerful Rare Earth permanent magnet featuring a circular ring design with a central hole, making it suitable for a wide range of industrial, engineering, manufacturing and DIY applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this ring magnet combines strong magnetic performance with a practical, low-profile design. Its \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e50mm outer diameter, 20mm centre hole and 5mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provide a broad annular surface and convenient central opening for incorporation into mechanical assemblies, fixtures and magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central 20mm hole allows the magnet to be positioned around suitable shafts, tubes, rods or mounting components, while its flat ring shape makes it useful for applications requiring magnetic attraction across a circular surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets, also known as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eRare Earth magnets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, are among the strongest commercially available permanent magnet materials. The N35 grade offers a practical balance of magnetic energy density and versatility for applications where a larger ring-shaped magnet is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional solid disc magnets, this Neodymium ring magnet features a central opening, allowing it to be incorporated into designs where a shaft, fastener or other component must pass through the centre.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts relatively thin \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm profile\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e makes it particularly useful for assemblies where installation height is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet may be used in appropriately designed magnetic couplings, holding assemblies, engineering prototypes, positioning systems, mechanical fixtures, educational demonstrations and custom magnetic equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e50mm Neodymium ring magnet, N35 Rare Earth ring magnet, 50x20x5mm ring magnet, large Neodymium washer magnet or NdFeB annular magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product offers a versatile solution for applications requiring a strong permanent magnet with a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing a magnetic assembly, manufacturing a custom component or sourcing a ring magnet for a technical project, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets 50mm x 20mm x 5mm N35 Neodymium Ring Magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a practical combination of magnetic performance, dimensional versatility and permanent magnetic functionality.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN35 Neodymium Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-performance Rare Earth magnetic material suitable for a wide range of applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e50mm Outer Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Broad circular profile for larger magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e20mm Centre Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows integration around suitable shafts, rods, tubes and mounting components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e5mm Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Low-profile design for applications with limited installation height.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Strong permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Features a central opening for specialised mounting and mechanical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Operates without batteries or an external power supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Engineering Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for magnetic assemblies, fixtures, positioning systems and prototypes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFlat Annular Surfaces:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Practical for incorporation into appropriately designed magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReusable Magnetic Component:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Maintains magnetic properties under suitable operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for Custom Assemblies:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can be integrated into purpose-designed housings and mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring shape makes this magnet suitable for custom magnetic assemblies where a central opening is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEngineering and Manufacturing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for engineering prototypes, mechanical fixtures and specialised magnetic equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Coupling Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCan be incorporated into appropriately designed magnetic coupling arrangements where the geometry and magnetic field are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eShaft and Rod Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 20mm centre hole allows the magnet to be positioned around compatible cylindrical components, subject to dimensional tolerances and installation requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Holding Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMay be suitable for custom holding applications where a circular magnetic surface and central opening are required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePositioning and Alignment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for magnetic positioning arrangements and alignment systems where controlled magnetic attraction or repulsion is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Development and Prototyping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for engineers, manufacturers and product designers testing ring-shaped magnetic configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eScientific and Educational Demonstrations\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCan be used for supervised demonstrations involving magnetic fields, attraction, repulsion and permanent magnet behaviour.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDIY and Technical Projects\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for experienced hobbyists and makers developing custom magnetic devices and assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N35 Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eStrong Rare Earth Magnetic Material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 Neodymium offers substantially higher magnetic energy density than conventional ceramic Ferrite magnet materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePractical Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole provides installation flexibility for specialised mechanical and magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBroad 50mm Outer Diameter\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe larger diameter provides a substantial circular magnetic footprint.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-Profile 5mm Thickness\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe relatively thin profile is useful where installation space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet produces a persistent magnetic field without requiring electricity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Technical Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for engineering, manufacturing, magnetic equipment and custom product development.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePermanent Rare Earth Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOuter Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInner Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThickness \/ Height\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRadial Ring Width\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEngineering, Magnetic Assemblies, Positioning, Prototyping and Custom Equipment\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOuter Diameter – 50mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures 50mm across its complete outside diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInner Diameter – 20mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central circular opening measures 20mm in diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis hole allows the magnet to be incorporated into suitable assemblies involving rods, shafts, tubes or other components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eThickness – 5mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures 5mm in height, providing a relatively low-profile ring design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Ring Width – 15mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial width of the magnetic material between the inner and outer edges is 15mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is calculated as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e(50mm − 20mm) ÷ 2 = 15mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Pole Orientation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor applications requiring a particular north and south pole arrangement, confirm the magnetisation direction before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does N35 Mean?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eN35 refers to the magnetic grade of the Neodymium Iron Boron material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe grade indicates the material's maximum energy product, which is a measure of magnetic energy density.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35 is a commonly used Neodymium grade offering strong permanent magnetic performance for general engineering and industrial applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlthough higher grades such as N42, N45, N50 and N52 have higher maximum energy products, the actual holding force of a magnet depends on more than its grade.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFactors such as dimensions, magnetisation direction, air gaps, receiving materials and operating conditions all influence magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35 does not represent a specific pull force or surface Gauss measurement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does a Neodymium Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium ring magnets are manufactured from an alloy of Neodymium, Iron and Boron.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring manufacturing, the material is magnetised to create a persistent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen placed near compatible ferromagnetic materials, such as mild steel, the magnet experiences magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen positioned near another permanent magnet, it may attract or repel depending on the orientation of the magnetic poles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring shape allows the magnet to be incorporated into assemblies requiring a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic field distribution depends on the magnetisation direction, dimensions and surrounding materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of a Ring Magnet with a 20mm Centre Hole\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Mounting Access\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe hole allows compatible components to pass through the centre of the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIntegration into Mechanical Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets can be incorporated into specially designed housings, fixtures and mechanical systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCircular Magnetic Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe annular shape can be useful in magnetic systems requiring a symmetrical ring-shaped component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-Profile Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 5mm thickness makes the magnet suitable for assemblies with limited vertical clearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Design Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening provides additional flexibility compared with a solid disc magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePlease Note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The centre hole is not countersunk or threaded unless specifically stated. Mechanical retention may require a suitable housing, adhesive or other fastening arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eNeodymium Ring Magnets vs Disc Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eRing Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDisc Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCircular with Centre Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSolid Circular Disc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable for Shaft Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes, with Compatible Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Without Modification\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFlat Magnetic Surfaces\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Grade, Size and Magnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Grade, Size and Magnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEngineering, Couplings, Custom Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHolding, Closures, General Magnetic Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets are particularly useful where a central opening is required for mechanical integration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install a Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the 50mm outer diameter, 20mm hole and 5mm thickness suit the intended assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Magnetisation Direction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify the pole orientation where required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, chips or other damage before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Mounting Surface:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the housing or receiving surface is clean and suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect an Appropriate Mounting Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use a compatible adhesive, purpose-designed housing or suitable mechanical retention system.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not force the magnet onto an oversized shaft or into an undersized recess.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHandle Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Prevent the magnet from snapping against steel objects or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm magnetic and mechanical performance under actual operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle and should not be drilled, cut, machined or subjected to excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Holding Strength\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnet Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 describes the magnetic material's maximum energy product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnet Dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 50mm outer diameter, 20mm centre hole and 5mm thickness influence the magnetic field and available holding force.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe orientation of the north and south poles affects magnetic attraction and field distribution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps between the magnet and a steel surface can significantly reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Surface\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel thickness, composition and surface condition affect magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSurface Coatings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePaint, protective coatings and other materials may increase the distance between the magnet and the receiving surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLoading Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eResistance to direct separation may differ from resistance to sliding or shear forces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExcessive heat can reduce magnetic performance and may cause irreversible demagnetisation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent chipping or cracking.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid allowing magnets to snap together or collide with steel objects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill, cut, bend or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid excessive pressure during installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep the magnet clean and free from metal filings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid prolonged moisture exposure unless environmental suitability has been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore magnets separately or with suitable protective spacing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for damage before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse appropriate protective equipment when handling strong magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract ferromagnetic objects unexpectedly and may cause injury if handled incorrectly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep fingers and skin clear when positioning magnets near steel objects or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are inherently brittle and may chip, crack or shatter on impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers, implanted medical devices and magnetically sensitive medical equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with certain electronic devices, sensors and magnetic storage media.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSwallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnets can cause serious internal injuries if swallowed, particularly when multiple magnets or a magnet and another metal object are ingested. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature has not been confirmed for this product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent testing is required before use where magnetic failure could create a safety risk.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat size is this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e50mm outer diameter, 20mm inner diameter and 5mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat grade is this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a Rare Earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium magnets are a type of Rare Earth permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the diameter of the centre hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe centre hole measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm in diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outer diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outer diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e50mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHow thick is the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the radial width of the ring?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial width is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e15mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, measured from the edge of the centre hole to the outer edge of the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N35 a strong magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. N35 Neodymium provides strong magnetic performance compared with many conventional Ferrite magnet materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA specific pull-force rating has not been supplied for this product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss rating?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA surface Gauss measurement has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified. Confirm pole orientation before using the magnet in applications requiring a particular magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I mount this magnet around a 20mm shaft?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal hole diameter is 20mm, but fit depends on manufacturing tolerances, shaft dimensions and installation requirements. Do not force the magnet onto a shaft.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the centre hole threaded?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo threaded feature has been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the hole countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA countersunk feature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet in a magnetic coupling?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt may be suitable for appropriately designed magnetic coupling systems, depending on the required magnetic field, torque and mechanical arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet for engineering projects?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. It is suitable for a range of engineering, prototyping and custom magnetic assembly applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I glue this magnet into a housing?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. A compatible adhesive may be used in a suitable assembly. Confirm adhesive compatibility with the magnet's coating and intended operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be drilled or cut?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets are brittle and should not be drilled, cut or machined using ordinary workshop methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been specified. Avoid prolonged moisture exposure unless the magnet's coating and environmental suitability have been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does this magnet have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe coating has not been specified in the supplied product information.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been supplied for this specific magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes this magnet require electricity?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. It is a permanent magnet and produces its own magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I stack multiple ring magnets?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, but stacking changes the magnetic field and creates additional handling hazards. Confirm pole orientation and use suitable mechanical support.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for children?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Strong Neodymium magnets present serious handling and swallowing hazards and must be kept away from children.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN35 Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Pot Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – OD50mm x ID20mm x H5mm | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-performance Rare Earth permanent magnet designed for engineering, manufacturing and custom magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecific pull force, surface Gauss, magnetisation direction, coating and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on installation conditions, receiving materials, air gaps, magnetic pole orientation and operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle and require careful handling. Strong magnetic attraction can cause pinch injuries or damage surrounding equipment. Independently verify suitability for demanding or safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296057180292,"sku":"R-OD50H5ID20-N35","price":51.81,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od50h5id20-n35.png?v=1752624487"},{"product_id":"neodymium-ring-magnet-od25-x-h5-x-id10-mm-n40","title":"Neodymium Ring Magnet OD25mm x H5mm | Hole 10mm N40","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm OD x 5mm Thick | 10mm Hole | N40 Rare Earth Magnet\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eCombining powerful rare earth magnetic performance with a versatile central-hole design, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm Outside Diameter x 5mm Thick | 10mm Hole | N40\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is ideal for engineering, manufacturing, magnetic assemblies and custom mounting applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN40-grade neodymium iron boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this high-strength permanent magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm outside diameter, 5mm thickness and 10mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a practical solution for applications requiring magnetic attraction around a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped design allows the magnet to be incorporated into compatible shafts, rods, housings and mechanical assemblies. Its flat annular faces also make it suitable for magnetic coupling, positioning, fastening and holding applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional ferrite magnets, neodymium magnets offer significantly higher magnetic energy density, allowing powerful magnetic components to be manufactured in relatively compact dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN40 magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides strong magnetic performance, making this ring magnet suitable for applications where reliable magnetic attraction and a central mounting opening are important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing a magnetic mechanism, assembling industrial equipment, creating a prototype or incorporating magnets into a custom product, this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm x 5mm neodymium ring magnet with a 10mm hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a versatile and compact magnetic solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN40 rare earth ring magnet, neodymium donut magnet, NdFeB ring magnet, 25mm ring magnet or circular magnet with a centre hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is suitable for a wide range of commercial, industrial, educational and general-purpose applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN40 Grade Neodymium:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-strength rare earth magnetic material offering excellent magnetic performance relative to its size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e25mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact circular profile suitable for a variety of magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e10mm Central Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows integration around compatible shafts, rods and mounting components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e5mm Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides a substantial magnetic body within a compact ring-shaped design.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e One of the strongest commercially available permanent magnet materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for magnetic coupling, positioning, fastening and custom mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFlat Annular Surfaces:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Practical for applications requiring a circular magnetic contact area.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Maintains its magnetic field without batteries or external electricity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for engineering, manufacturing, electronics, product development and DIY projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact and Reusable:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ideal for applications requiring repeated magnetic attraction or separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into custom mechanical assemblies, fixtures and engineered products requiring a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Couplings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in suitable magnetic coupling and positioning systems where the magnet's geometry and magnetic field characteristics meet the design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eShaft and Rod Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate around compatible shafts or rods with suitable clearance and mechanical retention.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eManufacturing and Product Assembly\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse as a permanent magnetic component in custom-manufactured products and equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectronics and Sensors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for selected electronic assemblies and sensing applications where magnetic field characteristics are important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Fastening Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCreate custom magnetic holding and attachment mechanisms using compatible components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Design and Prototyping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for experimental assemblies, engineering prototypes and custom magnetic mechanisms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEducational Demonstrations\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExplore magnetic attraction, polarity and magnetic field behaviour in supervised educational settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWorkshop and DIY Projects\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for custom fixtures, small mechanisms and general-purpose magnetic projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does an N40 Neodymium Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eneodymium iron boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a rare earth magnetic material known for its high magnetic energy density.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOnce magnetised, the material generates a permanent magnetic field that attracts suitable ferromagnetic objects, including iron and many grades of steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN40 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e indicates the magnetic material's maximum energy product, providing strong magnetic properties relative to the magnet's size.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring shape features a central opening that allows the magnet to be positioned around compatible mechanical components or incorporated into custom assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic field distribution depends on the magnetisation direction, dimensions and surrounding materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The magnetisation direction has not been specified. Confirm the pole orientation before using this ring magnet in applications where magnetic alignment is critical.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N40 Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eStrong Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN40 neodymium provides excellent magnetic energy density and is suitable for a wide range of permanent magnet applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Central Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 10mm opening allows integration with compatible shafts, rods, housings and mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Ring Design\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 25mm outside diameter and 5mm thickness provide a practical form factor for custom magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable for Engineering Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for product development, mechanical assemblies, magnetic positioning and manufacturing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Attraction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo electricity or batteries are required to maintain the magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth Permanent Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInside Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThickness \/ Height (H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN40\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRadial Ring Width\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Material Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2,062mm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEngineering, Magnetic Assemblies, Couplings and Product Development\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Ring Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOutside Diameter – 25mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe overall diameter of the magnet, measured across its outer circular edge.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInside Diameter – 10mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe diameter of the central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eThickness – 5mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe distance between the two flat annular faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Ring Width – 7.5mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe distance from the edge of the central hole to the outside edge of the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe radial width is calculated as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(25mm − 10mm) ÷ 2 = 7.5mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInstallation Note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 10mm central hole is a nominal dimension. Confirm actual tolerances and required clearance before installing the magnet around a shaft or rod.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN40 vs Other Neodymium Grades\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are available in several grades, including N35, N40, N42, N45, N50 and N52.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe grade refers to the magnetic material's maximum energy product rather than the pull force of an individual magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eMagnet Grade\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eGeneral Magnetic Performance\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard-strength neodymium\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eN40\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eHigh-strength neodymium\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN42\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigher magnetic energy than N40\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN45\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-strength neodymium\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVery high magnetic energy\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN52\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAmong the highest commonly available standard N grades\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eFor magnets with identical dimensions, magnetisation and comparable construction, higher magnetic grades generally provide stronger magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, actual holding force depends on the receiving surface, air gaps, magnet orientation and direction of applied force.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of a Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Mounting Opening\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 10mm hole provides flexibility for integrating the magnet into custom mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Circular Design\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 25mm outside diameter is suitable for applications where space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlat Magnetic Surfaces\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring's flat annular faces can be incorporated into suitable holding and positioning systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Assembly Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for integration into compatible housings, shafts and engineered components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium offers significantly greater magnetic energy density than conventional ferrite material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Holding Strength\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAxial, diametrical and other magnetisation arrangements produce different magnetic field patterns.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContact Surface\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFlat, clean ferromagnetic steel generally provides stronger magnetic attachment than rough or uneven surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSteel Thickness\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThicker steel can provide better magnetic flux return than thin steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePaint, coatings, adhesive layers and other gaps can reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePull Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDirect perpendicular pull generally produces stronger resistance to separation than sideways sliding or shear forces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnet Dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outside diameter, central hole and thickness influence the magnet's magnetic volume and field distribution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExposure to excessive heat can cause irreversible loss of magnetic strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Impact\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are brittle and may chip or fracture if dropped or subjected to impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install or Use This Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the 25mm outside diameter, 10mm hole and 5mm thickness suit the intended application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Magnetic Orientation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Identify the magnetic poles before installation if alignment is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Components:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clean the magnet and receiving surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Shaft Clearance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the central opening provides sufficient clearance for any shaft or rod.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect a Suitable Mounting Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use an appropriate housing, adhesive or mechanical retention method.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid allowing the magnet to snap suddenly against steel or another magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Force:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not press-fit or force the brittle magnet onto an oversized shaft.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnetic performance under actual operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInstallation Tip:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e For shaft-mounted applications, allow suitable clearance and use an appropriate retaining method rather than relying on a tight interference fit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent chipping or cracking.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid dropping or striking the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not allow magnets to collide forcefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not force the magnet onto an oversized shaft.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore in a clean, dry environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtect the magnet from moisture and corrosive environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid damaging any protective coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from sensitive electronic equipment and magnetic storage media where interference may occur.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse suitable packaging when transporting multiple magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract steel objects and other magnets suddenly, creating pinch hazards.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare earth magnets are hard but brittle and may chip or fracture under impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSmall Magnet Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This product presents a serious ingestion risk. Swallowed magnets can cause severe internal injuries. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep away from pacemakers, implanted defibrillators and other medical devices that may be affected by magnetic fields.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature for this specific product has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCorrosion:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnetic material is susceptible to corrosion if inadequately protected.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePull Force:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A specific pull-force rating has not been supplied. Test the magnet under actual application conditions before relying on its holding strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Installation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not force the magnet onto shafts or use it as a structural bearing component without appropriate engineering assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not use as the sole retaining component in safety-critical assemblies without independent testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat size is this neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm outside diameter, 10mm inside diameter and 5mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat grade is this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN40-grade neodymium\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N40 mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN40 refers to the magnetic material's grade and indicates its maximum energy product. It does not mean the magnet has a pull force of 40kg.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a rare earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium iron boron magnets are a type of rare earth permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the diameter of the centre hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm in diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the radial width of the ring?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial width is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e7.5mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, calculated from the outside and inside diameters.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet fit onto a 10mm shaft?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe hole is nominally 10mm, but actual fit depends on manufacturing tolerances and required clearance. Do not force the magnet onto a shaft.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the central hole countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo countersunk feature has been specified. The product is described as a ring magnet with a 10mm central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHow strong is this N40 ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt uses high-strength N40 magnetic material, but a specific pull-force rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N40 stronger than N35?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor magnets with identical dimensions and comparable construction, N40 material generally offers higher magnetic energy than N35.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified and should be confirmed before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be used for magnetic couplings?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt may be suitable for certain magnetic coupling applications, provided the magnetic field arrangement and mechanical design are appropriate.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be glued into a housing?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. An appropriate adhesive may be used, provided it is compatible with the magnet's coating and receiving material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly stainless steel grades that are sufficiently ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does this magnet have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe coating has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan it be used outdoors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability depends on the coating, moisture exposure and installation method. These factors should be verified before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for children?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets present a serious ingestion hazard and are not toys.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN40 Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Pot Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Coupling Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Fastening and Mounting Accessories\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Components for Engineering and Product Design\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm OD x 5mm Thick | 10mm Hole | N40\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is manufactured from high-strength neodymium rare earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe N40 grade describes the magnetic material's properties and should not be interpreted as a specific pull-force rating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eExact pull force, surface Gauss, coating, magnetisation direction, dimensional tolerances and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle and must be handled carefully. Do not force this ring magnet onto an oversized shaft or expose it to excessive mechanical stress. Keep away from children and pets, and always test magnetic performance under actual application conditions.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296057213060,"sku":"R-OD25H5ID10-N40","price":14.89,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od25h5id10-n40.png?v=1752624485"},{"product_id":"neodymium-ring-magnet-od12-x-h5-x-id2-mm-n35","title":"Neodymium Ring Magnet OD12mm x H5mm | Hole 2mm N35","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 12mm OD x 2mm ID x 5mm H | N35 Rare Earth Magnet\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 12mm Outer Diameter x 2mm Inner Diameter x 5mm Height | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact, high-strength Rare Earth permanent magnet featuring a circular ring design with a small central through-hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35-grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this versatile magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12mm in outer diameter, 2mm in inner diameter and 5mm in height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing reliable permanent magnetic properties in a practical cylindrical ring configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12mm outer diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a compact circular profile, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows compatible pins, shafts, rods or other small components to pass through the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a relatively substantial magnetic body compared with thinner ring magnets, making it suitable for compact engineering assemblies, magnetic mechanisms and specialised components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers high magnetic energy density compared with conventional Ferrite magnets, making it a practical choice for applications requiring strong magnetic properties within a limited space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are among the strongest commercially available permanent magnetic materials and are widely used in engineering, manufacturing, electronics, magnetic sensing systems and product development.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped design allows the magnet to be incorporated into assemblies where a central opening is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes it particularly useful for miniature shafts, alignment pins, magnetic positioning systems, custom fixtures and precision mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike countersunk ring magnets, this product features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003estraight 2mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with no countersink specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening may accommodate suitable mounting components, although the magnet itself should not be subjected to excessive fastening pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are brittle by nature and can chip or crack when exposed to impact, excessive mechanical stress or uncontrolled collisions with other magnets and ferromagnetic materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet may be installed within a suitable housing, retained using an engineered mounting arrangement or bonded to a compatible surface using an appropriate adhesive.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual magnetic holding force depends on the magnetisation direction, receiving steel thickness, contact area, air gaps, surface coatings and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlthough the N35 grade identifies the magnetic material's energy classification, it does not establish the finished magnet's pull-force rating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specific pull force, surface Gauss, magnetisation direction, protective coating and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese characteristics should be verified before using the magnet in applications requiring a particular magnetic field orientation, environmental resistance or guaranteed holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDue to its small size, this magnet presents a serious swallowing hazard and must be kept away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12mm Neodymium ring magnet, 12x2x5mm Rare Earth magnet, N35 circular magnet with hole, miniature annular magnet, 12mm OD ring magnet or cylindrical Neodymium magnet with 2mm hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product offers a versatile solution for compact magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're designing a miniature magnetic mechanism, developing a precision fixture, manufacturing a specialised component or creating a custom magnetic mounting system, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 12mm OD x 2mm ID x 5mm H | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides permanent magnetic performance in a compact annular design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN35 Neodymium Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-strength Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e12mm Outer Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact circular magnetic profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2mm Inner Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Small central through-hole for compatible components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e5mm Height:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Substantial cylindrical ring construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-energy permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows suitable pins, rods or shafts to pass through the centre.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh Magnetic Energy Density:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Strong magnetic properties relative to size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetism:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No batteries or electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStraight Central Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for custom mounting arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for miniature mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrecision Engineering Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for specialised components and fixtures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMagnetic Sensor Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to compatible sensing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCustom Mounting Potential:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can be incorporated into suitable housings or bonded assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Technical Component:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to manufacturing, research and product development.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMiniature Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate the ring magnet into compact mechanical systems requiring a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into specialised components where a small ring-shaped permanent magnet is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Positioning Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDevelop miniature magnetic alignment and positioning mechanisms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Sensors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in compatible sensing systems after confirming the required magnetisation direction and magnetic field characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSmall Shaft Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into suitable mechanisms involving miniature shafts, pins or rods.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectronics and Devices\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in appropriately designed electronic assemblies where magnetic interference has been considered.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Manufacturing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into custom products requiring compact annular magnetic components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLaboratory Prototyping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTest magnetic circuit designs and component configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eModel Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into specialised models and precision miniature assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Magnetic Fixtures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCreate small magnetic holding and locating systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose a 12mm x 2mm x 5mm N35 Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eSmall Central Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 2mm inner diameter provides clearance for compatible miniature mounting components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact 12mm Outer Diameter\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for small housings and precision assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePractical 5mm Height\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eProvides a substantial magnetic body compared with thinner ring magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eN35 Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOffers high magnetic energy density compared with conventional Ferrite materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Field\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Annular Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for a wide range of technical and custom magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Category\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOuter Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInner Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStraight Through-Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Radial Ring Width\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Annular Face Area\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 109.96mm²\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Material Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 549.78mm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEstimated Magnet Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 4.12g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtective Coating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturing Tolerance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePrecision Engineering, Magnetic Assemblies, Sensors and Custom Fixtures\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eEstimated weight is calculated using a representative NdFeB density of 7.5g\/cm³ and is not a measured product specification.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOuter Diameter – 12mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has an overall outside diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, measured across the widest point of the circular body.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInner Diameter – 2mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm in diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing compatible miniature pins, rods or mounting components to pass through the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 5mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm high\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, creating a compact cylindrical magnetic body.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Ring Width\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial width of the magnetic material between the inner and outer edges is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e(12mm − 2mm) ÷ 2 = 5mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAnnular Face Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal area of one flat ring face is calculated by subtracting the central hole area from the outer circular area:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eπ × (6² − 1²) = approximately 109.96mm²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMaterial Volume\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal magnetic material volume is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e109.96mm² × 5mm = approximately 549.78mm³\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEquivalent to approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.54978cm³\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEstimated Weight\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUsing a representative Neodymium magnet density of 7.5g\/cm³:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e0.54978cm³ × 7.5g\/cm³ = approximately 4.12 grams\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual weight may vary due to manufacturing tolerances, material composition and coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is an N35 Neodymium Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAn \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 Neodymium magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a permanent Rare Earth magnet manufactured from Neodymium Iron Boron material with an N35 magnetic grade classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe N35 grade generally corresponds to a maximum energy product of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e33–36 MGOe\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, depending on the applicable material specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis classification describes the magnetic material's energy capability rather than the finished magnet's direct pull force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN35 magnets are commonly used in applications requiring compact, reliable magnetic components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is a Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a circular permanent magnet with a central hole extending through its thickness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets are also known as annular magnets or magnetic rings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening makes them suitable for applications involving shafts, pins, mounting components, spacers and custom magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey are commonly used in engineering, manufacturing, magnetic sensing systems, fixtures and research applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTheir performance depends on magnetic grade, magnetisation direction, geometry and the surrounding magnetic circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does a Neodymium Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Iron Boron material produces a permanent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on the magnetisation direction, the magnetic poles may be positioned on opposing flat ring faces, across the diameter or in another specified configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor an axially magnetised ring magnet, the north and south poles are located on opposite flat annular faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor a diametrically magnetised ring magnet, the poles are positioned across the diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe magnetisation direction of this particular product has not been specified and should be confirmed before use in applications requiring a defined magnetic field orientation.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding Magnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eAxial Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is magnetised through its 5mm height, with poles on opposing flat ring faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDiametric Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is magnetised across its diameter, with poles positioned on opposite sides of the ring.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Magnetisation Matters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction determines the magnetic field distribution and influences suitability for magnetic couplings, sensors, fixtures and custom assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDo not assume a particular pole arrangement without confirmation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of N35 Neodymium Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh magnetic energy density in a small annular component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Mounting Opening\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 2mm hole accommodates compatible miniature mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePractical Cylindrical Height\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 5mm height is useful for compact mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Field\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Engineering Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring design suits a wide range of technical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Assembly Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for incorporation into appropriately engineered magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 vs Other Neodymium Grades\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eGrade\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eApproximate Maximum Energy Product\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eN35\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003e33–36 MGOe\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN38\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e36–39 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN42\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40–43 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN45\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e43–46 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN48\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e46–49 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48–51 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eN52\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50–53 MGOe\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eHigher magnetic grades generally offer greater maximum magnetic energy density, but actual holding strength also depends on the magnet's dimensions, magnetisation direction and application conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRing Magnets vs Disc Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eRing Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDisc Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCircular with Central Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSolid Circular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Options\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCan Accommodate Compatible Components Through Centre\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRequires Alternative Mounting\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReduced by Central Opening\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFull Circular Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eShafts, Fixtures, Custom Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eClosures, Displays, General Holding\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Grade and Geometry\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Grade and Geometry\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eA ring magnet is often preferred where a central opening is essential to the mechanical design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install or Use the N35 Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check the 12mm outer diameter, 2mm hole diameter and 5mm height.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Magnetisation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnetic pole orientation required for the application.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, chips or coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the receiving components are clean and correctly aligned.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Hole Clearance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the shaft or mounting component fits without excessive force.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect a Suitable Mounting Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use an appropriate housing, adhesive or engineered retaining arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not overtighten fixings or apply concentrated mechanical loads to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Prevent uncontrolled contact with steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Alignment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnet is positioned correctly within the assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify magnetic holding strength and mechanical stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect Regularly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for movement, corrosion or physical damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHandle Safely:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep small powerful magnets away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Holding Strength\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 identifies the magnetic material's energy classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe pole orientation influences the magnetic field and holding characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Steel\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel thickness, composition and geometry affect magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps between the magnet and receiving material can reduce holding strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContact Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe available magnetic contact area influences performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 2mm opening reduces the magnetic material volume compared with a solid disc of the same outside dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSurface Coatings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePaint, plating and other layers may introduce additional separation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLoad Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDirect pull and sideways sliding loads produce different holding characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExcessive heat can permanently reduce magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Damage\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eChips, cracks or coating damage may affect reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent chipping or cracking.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid uncontrolled collisions with steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not overtighten mounting hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid applying concentrated pressure around the central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtect from excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep dry where corrosion resistance has not been verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore away from magnetically sensitive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for cracks or coating damage before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse suitable housings and mounting methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify performance before demanding applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract ferromagnetic objects unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets may chip, crack or shatter under impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep fingers clear when magnets approach steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSerious Swallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Small powerful magnets can cause life-threatening internal injuries if swallowed, particularly if multiple magnets are ingested. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers and magnetically sensitive implanted medical devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with sensitive electronics, sensors and equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Stress:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not use the central hole as a means of applying excessive fastening pressure directly to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCorrosion Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The protective coating has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent engineering assessment and testing are required before use where failure could cause injury or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat are the dimensions of this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12mm outer diameter, 2mm inner diameter and 5mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat material is it made from?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from Neodymium Iron Boron (NdFeB).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a Rare Earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium is a Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outer diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outer diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the hole diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the height?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm high\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the estimated weight?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eApproximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.12g\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, calculated using representative NdFeB density.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it diametrically magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA pull-force rating has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe surface Gauss rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does it have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe protective coating has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N35 a strong magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. N35 is a Neodymium Rare Earth grade with high magnetic energy density compared with conventional Ferrite materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N35 weaker than N42?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN35 generally has a lower maximum energy product than N42, although actual holding performance depends on magnet design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N52 stronger than N35?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN52 generally has a higher maximum energy product, but the finished magnet's performance depends on geometry and application conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use the hole for mounting?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, the central opening can accommodate compatible mounting components, provided the assembly does not apply damaging pressure to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the hole countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo countersink has been specified. The product is described as having a straight 2mm central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it with a small shaft?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided the shaft dimensions and mounting arrangement are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for magnetic sensors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, in compatible applications after confirming the magnetisation direction and magnetic field characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for precision engineering?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Its compact ring geometry makes it suitable for specialised magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. It attracts suitable ferromagnetic steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract aluminium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Aluminium is not ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly if the stainless steel grade is sufficiently magnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I glue the magnet into a recess?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, potentially, using an adhesive compatible with the magnet's coating and receiving material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets are brittle and should not be drilled or machined.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it outdoors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet suitable for children?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. This small powerful magnet presents a serious swallowing hazard and must be kept away from children.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly after appropriate engineering verification, testing and compliance assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN35 Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMiniature Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Sensor Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 12mm OD x 2mm ID x 5mm H | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact Rare Earth permanent magnet designed for precision engineering, magnetic assemblies, sensors and custom mounting applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12mm in outer diameter, 2mm in inner diameter and 5mm in height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35-grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003estraight 2mm central through-hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe estimated weight is approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.12g\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, calculated using representative NdFeB density. This is not a verified product weight.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specific magnetisation direction, pull force, surface Gauss, protective coating, maximum operating temperature and manufacturing tolerance have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on magnetisation, receiving steel, air gaps, contact area and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle by nature and must be handled carefully. This small powerful magnet presents a serious swallowing hazard and must be kept away from children and pets. Avoid impact, excessive mechanical pressure and direct machining. Independent testing is required before use in safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296060489860,"sku":"R-OD12H5ID2-N35","price":6.33,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od12h5id2-n35.png?v=1752624339"},{"product_id":"neodymium-ring-magnet-od15-x-h3-x-id9-mm-n35","title":"Neodymium Ring Magnet OD15mm x H3mm | Hole 9mm N35","description":"\u003cp\u003e\u003cstrong\u003eNeodymium Ring Magnets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStrong Neodymium Ring magnets placed on each side of an opening with the opposing North and South poles facing each other is one of many methods of creating a magnetic closure system for such things as fashion items, storage bins, cabinets and any other situation where mechanical closure methods are visually unsuitable or otherwise inappropriate. Unlike solid Block or Disc shaped permanent magnets, Ring magnets are easily held in position with some form of round lug, shaft or pin that has the corresponding diameter to the central hole (ID) of the Ring magnet. In other circumstances, two Ring magnets with opposing poles may be attached to each side of an opening with wire, string, cord or a similar material. This method is fast, simple and especially convenient for occasional use or isolated outdoor holding applications. Single ring magnets can also be used to bond with ferrous surfaces around the workplace or, as another option, a metal washer can be easily attached to non-ferromagnetic surfaces such as timber fencing or sheds, to create a ferrous attachment point for the magnet. Farmers, maintenance workers and many tradespeople find this type of magnetic attachment extremely practical and also offers considerable time saving benefits when performing their daily work schedule.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296060522628,"sku":"R-OD15H3ID9-N35","price":6.61,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od15h3id9-n35.png?v=1752624337"},{"product_id":"neodymium-ring-magnet-od25-x-h10-x-id5-mm-n35","title":"Neodymium Ring Magnet OD25mm x H10mm | Hole 5mm N35","description":"\u003ch1\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm OD x 5mm ID x 10mm H | N35\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm OD x 5mm ID x 10mm H | N35\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a strong \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erare earth permanent magnet measuring 25mm outside diameter (OD) x 5mm inside diameter (ID) x 10mm high\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this annular magnet combines strong magnetic performance relative to its size with a straight \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm central through-hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for integration into mechanical, engineering and product assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts substantial \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm outside diameter and 10mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provide a robust ring-shaped magnetic profile, while the 5mm centre opening can provide clearance for appropriately sized pins, rods, shafts, locating features or other mechanical components. This geometry makes the magnet suitable for positioning systems, sensors, fixtures, machinery, product development, research, prototypes and custom OEM magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAlso known as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 neodymium ring magnet, rare earth ring magnet, NdFeB annular magnet, donut magnet, ring-shaped neodymium magnet or rare earth magnet with a central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this magnetic component provides permanent magnetic operation without electricity, batteries or charging.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutside diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 25mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInside diameter \/ hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ring \/ annular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnet type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare earth permanent magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCentral opening:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5mm straight through-hole\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong magnetic performance relative to size\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSubstantial 10mm high ring profile\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for engineering and manufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for mechanical and product assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for positioning and alignment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for sensors and instrumentation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for fixtures and jigs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUseful for research and prototype development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for custom OEM magnetic assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePermanent magnetic operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo electricity, batteries or charging required\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEngineering\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufacturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndustrial equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComponent alignment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFixtures and jigs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensors and instrumentation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePosition detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProximity sensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic switching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMachinery components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResearch and development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLaboratory equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom OEM products\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003e25mm OD x 5mm ID x 10mm High Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N35 neodymium ring magnet measures:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e25mm outside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e5mm inside diameter\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e10mm height\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe 5mm central opening creates an annular magnetic body that can be integrated around or alongside suitably sized mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe relatively substantial 10mm height provides a deeper ring profile than thin washer-style magnets, making this product useful for applications requiring a compact but robust cylindrical ring geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe stated dimensions describe the physical geometry of the magnet and do not represent its pull force, holding capacity or safe working load.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Grade Neodymium Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis ring magnet is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade Neodymium Iron Boron\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 is a widely used rare earth magnetic grade that provides strong permanent magnetic performance relative to physical size.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 magnets can be useful where:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStrong permanent magnetism is required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable installation space is limited\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA compact ring-shaped magnet is required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA central through-hole is useful for mechanical integration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigher magnetic performance than similarly sized ferrite magnets is preferred\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation identifies the magnetic material grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should not be interpreted as a 35kg pull force.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does N35 Mean?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a classification of Neodymium Iron Boron magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe numerical designation relates to the material's maximum energy product and is used to distinguish between different neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen comparing magnets with the same dimensions, geometry and magnetisation configuration, different grades can provide different levels of magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 does not directly specify:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePull force\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSafe working load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole orientation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese depend on the complete magnetic design and application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e5mm Central Through-Hole\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis ring magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm diameter straight central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e extending through its 10mm height.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDepending on the finished assembly, this opening may provide clearance for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePins\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eShafts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRods\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLocating features\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical guides\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct components\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe central hole can make the magnet easier to integrate into products where another component needs to pass through the centre of the magnetic assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eHowever, a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm hole does not automatically mean the magnet will fit a 5mm shaft, bolt, pin or rod\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual compatibility depends on dimensional tolerances and the mechanical clearance required for the application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMechanical and Product Assemblies\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe combination of a compact outside diameter, substantial height and central through-hole makes this magnet useful for engineered product assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEquipment components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype machinery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom magnetic devices\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe magnet should be appropriately supported within the finished assembly and should not be treated as a structural component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSensors and Instrumentation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium ring magnets can be incorporated into magnetic sensor systems where the magnet's field configuration is compatible with the selected sensor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHall-effect sensors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReed switches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePosition detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProximity sensing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic switching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEquipment monitoring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstrumentation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSensor performance depends on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole orientation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet-to-sensor distance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor sensitivity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurrounding magnetic materials\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe magnetisation configuration has not been supplied and should be confirmed where magnetic field direction is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePositioning and Alignment\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 ring magnets can also be incorporated into positioning and alignment systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential functions include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eComponent locating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRepeatable positioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic alignment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAssembly assistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFixture positioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere multiple magnets are used together, polarity should be confirmed before permanent installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium ring magnets can be manufactured with different magnetic configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA ring magnet may potentially be:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAxially magnetised through its 10mm height\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDiametrically magnetised across its diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRadially magnetised\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMultipole magnetised\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManufactured with another specialised pole arrangement\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe actual \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emagnetisation direction and pole configuration have not been supplied\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for this product and should not be assumed from the ring shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConfirm the magnetic orientation where pole location or field direction is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Coupling Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRing magnets may be incorporated into magnetic coupling systems where the magnetisation configuration and mechanical design are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eContactless magnetic coupling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRotating mechanisms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePositioning devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlignment systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrototype mechanical assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCoupling performance depends on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole arrangement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eN35 material properties\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet spacing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNumber of magnets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo coupling torque or force should be inferred from the physical dimensions alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAlthough this magnet is confirmed as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, practical magnetic performance depends on several additional factors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eN35 material properties\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePole configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic circuit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget steel composition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget steel thickness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable contact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLoad direction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical leverage\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force or magnetic flux density in Gauss\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese values should not be estimated from the N35 grade or physical dimensions alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Does Not Mean 35kg Pull Force\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation does not mean this magnet has a 35kg pull force\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 identifies the grade of the NdFeB magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePull force is a separate performance measurement influenced by:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMagnet dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetisation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget thickness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTest conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUse a verified pull-force specification where holding performance is critical.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAir Gaps and Magnetic Attraction\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEven small air gaps can significantly reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential sources of separation include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePaint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePowder coating\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdhesive\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProtective films\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProduct housings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDirt\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRust\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor maximum practical attraction, unnecessary separation between the magnet and magnetic target should generally be minimised.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDirect Pull vs Shear Force\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhere this magnet is used against suitable ferromagnetic steel, magnetic holding depends on load direction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDirect pull\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is separated perpendicular to the target.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eShear loading\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e occurs when the magnet is encouraged to slide parallel to the target.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eShear performance can be influenced by:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSurface friction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContact quality\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePaint and coatings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation orientation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMechanical leverage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVibration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTest the completed assembly under realistic conditions where magnetic holding is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTarget Steel Thickness\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe target steel is an important part of any magnetic holding system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePractical performance can depend on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSteel composition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSteel thickness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTarget dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSurface condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable contact area\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic saturation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eVery thin steel may not provide the same magnetic response as a suitably thick ferromagnetic target.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTesting against the actual target material is recommended for performance-critical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBonding a Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N35 ring magnet can be bonded into an appropriately designed housing or product assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBefore bonding:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eConfirm the required magnetic orientation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfirm polarity where multiple magnets are involved\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClean both bonding surfaces\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRemove grease, dust and contamination\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSelect an adhesive compatible with the magnet's actual surface finish\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProvide suitable dimensional clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvoid force-fitting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAllow the adhesive to cure according to its instructions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecoating or plating has not been supplied\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, so adhesive compatibility with the actual magnet surface should be confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAvoid Force-Fitting Through the 5mm Hole\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium Iron Boron is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard but brittle\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDo not force an oversized shaft, bolt, pin, rod or other component through the 5mm central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eExcessive mechanical pressure may cause:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eChipping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCracking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSplitting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFracturing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDamage to the surface finish\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eProvide appropriate mechanical clearance based on the actual dimensions and tolerances of the magnet and mating component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDo Not Machine Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFinished neodymium magnets should not be modified using conventional workshop methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAvoid:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDrilling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCutting\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGrinding\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCrushing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMachining\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnlarging the central hole\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese processes can damage the brittle NdFeB material and any protective surface coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf a different inside diameter or overall size is required, select a magnet manufactured to the appropriate dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCompatible Target Materials\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium magnets attract suitable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eferromagnetic materials\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMild steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIron\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnetic steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible ferromagnetic components\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThey will not effectively attract inherently non-magnetic materials such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAluminium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCopper\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBrass\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTimber\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGlass\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMany stainless steel grades may also be weakly magnetic or non-magnetic and should be tested before relying on magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN35 Neodymium vs Ferrite Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 neodymium and ferrite ring magnets provide different characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eN35 neodymium ring magnets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e generally provide:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHigher magnetic performance relative to size\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong magnetic properties from compact dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdvantages in space-restricted systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitability for sensors and engineered assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFerrite ring magnets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e generally provide:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLower cost\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGood natural corrosion resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGood resistance to demagnetisation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitability where larger dimensions are acceptable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eN35 neodymium is commonly selected where \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003estrong magnetic performance from a compact ring-shaped permanent magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePermanent Magnetic Operation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis N35 neodymium ring magnet is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epermanent magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt requires:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eNo electricity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo charging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo external power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts magnetic field remains continuously active during normal use.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Ring Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eAlternative Names:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35 Neodymium Ring Magnet, Rare Earth Ring Magnet, NdFeB Ring Magnet, Neodymium Annular Magnet, Donut Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutside Diameter (OD):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 25mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eInside Diameter \/ Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHeight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCentral Opening:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Straight through-hole\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eShape:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ring \/ Annular\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N35\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnet Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rare Earth Permanent Magnet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMagnetic Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Permanent\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePower Required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e None\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCompatible Targets:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable ferromagnetic iron and steel\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePrimary Functions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic attraction, positioning, alignment, sensing, coupling and product integration\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTypical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engineering, manufacturing, mechanical assemblies, sensors, fixtures, machinery, research, prototypes and OEM products\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSafety and Handling\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium magnets can generate strong magnetic attraction and should be handled carefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep fingers clear when the magnet approaches another magnet or ferromagnetic object. Sudden attraction can cause:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePinching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTrapping injuries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMagnet collisions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChipping\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCracking\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFragmentation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium is a hard but brittle material, so uncontrolled impacts and excessive mechanical pressure should be avoided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIngestion Hazard\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSmall magnets can present a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eserious ingestion hazard\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, particularly if multiple magnets are swallowed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep this magnet securely away from babies and children. If incorporated into another product, ensure the magnet is securely retained so it cannot become loose during normal use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSeek urgent medical attention if magnet ingestion is suspected.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePermanent magnets should also be kept an appropriate distance from pacemakers, implanted medical devices, magnetic storage media, magnetic cards and sensitive electronic equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis product is an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 Neodymium Ring Magnet measuring 25mm outside diameter (OD) x 5mm inside diameter (ID) x 10mm high\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, manufactured from Neodymium Iron Boron (NdFeB) rare earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 designation identifies the magnetic material grade and does not mean the magnet has a 35kg pull force\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5mm inside diameter describes the physical size of the central through-hole and does not automatically indicate compatibility with a 5mm shaft, bolt, pin, rod or other component\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Appropriate dimensional tolerance and mechanical clearance should be considered.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNo specific \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epull force, Gauss rating, coating or plating, magnetisation direction, pole configuration, dimensional tolerance or maximum operating temperature\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e has been supplied and these specifications should not be assumed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual magnetic performance depends on the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN35 material properties, magnetisation configuration, magnetic circuit, target material, target steel thickness, available contact area, surface condition, air gaps, load direction and installation geometry\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eNeodymium is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehard and brittle magnetic material\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Avoid impact, force-fitting, drilling, cutting, grinding or machining.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe stated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm OD x 5mm ID x 10mm H dimensions describe the physical geometry of the magnet and do not represent its pull force, holding capacity or safe working load\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot certified lifting equipment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and should not be used for overhead or safety-critical lifting.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296060555396,"sku":"R-OD25H10ID5-N35","price":20.56,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od25h10id5-n35.png?v=1752624336"},{"product_id":"25mm-x-5mm-hole-12mm-n38-ring-magnets-neodymium","title":"Neodymium Ring Magnet OD25mm x H5mm | Hole 12mm N38","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – OD25mm x ID12mm x H5mm | N38\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – 25mm Outer Diameter x 12mm Inner Diameter x 5mm Height | N38\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e from AMF Magnetics is a powerful, compact Rare Earth magnet designed for applications requiring strong magnetic performance with a convenient central mounting hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this permanent ring magnet offers excellent magnetic strength relative to its size, making it a versatile choice for engineering, manufacturing, magnetic assemblies, electronics, product development and DIY projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eouter diameter of 25mm, an inner hole diameter of 12mm and a thickness of 5mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this Neodymium ring magnet provides a practical combination of magnetic surface area and mounting flexibility. The central hole allows the magnet to be positioned around suitable shafts, rods, fasteners or other components, depending on the application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe circular ring design makes this magnet particularly useful where a central opening is required for alignment, assembly or clearance. Its compact 5mm thickness also makes it suitable for applications where installation space is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN38 Neodymium magnets are manufactured from high-energy Rare Earth magnetic material, providing significantly greater magnetic energy density than conventional Ferrite magnets. This allows relatively small Neodymium magnets to deliver strong magnetic performance in compact assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eRare Earth ring magnet, Neodymium washer magnet, annular magnet, NdFeB ring magnet or circular magnet with centre hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is suitable for a wide range of industrial, commercial and custom magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing a magnetic mechanism, assembling specialised equipment or designing a custom magnetic fixture, this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm x 12mm x 5mm N38 Neodymium ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a compact and versatile magnetic solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN38 Neodymium Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Manufactured from high-energy Neodymium Iron Boron (NdFeB) magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e25mm Outer Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact circular design suitable for a variety of magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e12mm Centre Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides clearance for suitable shafts, rods, fasteners and custom mounting arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e5mm Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Low-profile design for space-constrained applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Rare Earth Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Produces a magnetic field without requiring an external power source.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRing-Shaped Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for applications requiring a central opening or annular magnetic geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh Magnetic Energy Density:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Offers strong magnetic performance relative to physical size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for engineering, electronics, manufacturing, product development and DIY projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCustom Assembly Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can be incorporated into appropriately designed housings, fixtures and magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReusable Magnetic Component:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for repeated use when handled and installed correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eEngineering and Manufacturing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium ring magnets are commonly used in engineered components and magnetic assemblies where a central opening is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTheir compact dimensions make them suitable for custom equipment, fixtures and precision manufacturing applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe annular shape allows this magnet to be incorporated into magnetic systems requiring a central hole for alignment, clearance or mounting.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eShafts, Rods and Mechanical Components\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 12mm centre opening may accommodate suitable shafts, rods or other components, provided appropriate clearance and mechanical retention are incorporated into the design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectronics and Product Development\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eRing magnets can be used in electronic assemblies, sensing arrangements and product prototypes where the required magnetic field and geometry are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Positioning and Alignment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for custom positioning systems and alignment applications where magnetic attraction or repulsion is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eResearch and Prototyping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for testing magnetic configurations, developing prototypes and evaluating magnetic field behaviour.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDIY and Hobby Projects\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA practical option for model making, creative projects and custom magnetic mechanisms requiring a ring-shaped magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Magnetic Fixtures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCan be incorporated into specially designed holders, housings and fixtures for industrial or commercial applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does an N38 Neodymium Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are permanent magnets manufactured from an alloy of Neodymium, Iron and Boron (NdFeB).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring manufacturing, the magnetic material is magnetised to produce a persistent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38 grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e identifies the magnetic material's maximum energy product classification. It indicates the energy density of the magnetic material rather than a specific holding force.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen positioned near a compatible ferromagnetic material, such as mild steel, the ring magnet experiences magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet can also attract or repel another permanent magnet depending on the orientation of their magnetic poles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped geometry influences the distribution of the magnetic field, while the central hole provides space for mechanical components or custom mounting arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReceiving steel composition and thickness\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eContact area\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAir gaps\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSurface coatings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOperating temperature\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic pole orientation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMechanical loading direction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The magnetisation direction, pull force and surface Gauss rating for this specific product have not been supplied. Confirm these details before using the magnet in applications requiring a particular magnetic field orientation or verified holding capacity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N38 Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eStrong Rare Earth Magnetic Material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN38 Neodymium provides high magnetic energy density, allowing compact magnets to deliver strong magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePractical Central Hole\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 12mm centre hole provides a convenient opening for suitably designed mechanical components and assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact 25mm Diameter\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 25mm outer diameter offers a useful balance between magnetic size and installation flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-Profile 5mm Thickness\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe slim design is suitable for applications where available mounting depth is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe annular shape can be advantageous in applications requiring a central opening or circular magnetic arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet produces its own magnetic field without batteries or electricity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePermanent Rare Earth Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN38\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Annular\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOuter Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInner Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Through-Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEngineering, Magnetic Assemblies, Electronics and Manufacturing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOuter Diameter – 25mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has an overall external diameter of 25mm, making it suitable for compact circular assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInner Diameter – 12mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central through-hole measures 12mm in diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis opening can provide clearance for appropriately sized shafts, rods or other components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 5mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures 5mm thick, providing a relatively low-profile ring geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRing Width\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial width of magnetic material between the central hole and the outer edge is approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6.5mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is calculated from the difference between the outer and inner diameters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePlease Note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dimensions are nominal. Confirm manufacturing tolerances and mechanical clearances before incorporating the magnet into precision assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding N38 Magnetic Grade\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eN38 is a grade of Neodymium Iron Boron magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe grade refers to the material's maximum energy product, a measure of the magnetic energy density available from the material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN38 Neodymium magnets provide strong magnetic performance relative to their physical size and are commonly used in industrial and commercial magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, the N38 designation does not specify:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eActual pull force\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMaximum operating temperature\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCoating type\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMechanical holding capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese properties depend on the individual magnet and its application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install a Neodymium Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check that the 25mm outer diameter, 12mm inner diameter and 5mm thickness suit the intended assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Magnetisation Direction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm pole orientation before installation in polarity-sensitive systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Mounting Area:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure surfaces are clean and free from debris.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect a Suitable Mounting Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use an appropriately designed housing, mechanical retention arrangement or compatible adhesive where required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle and can fracture if clamped or compressed unevenly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Mechanical Clearance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure shafts, rods or fasteners passing through the hole do not place damaging stress on the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify magnetic holding performance under actual operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The central hole is not countersunk or threaded. Do not overtighten fasteners directly against the brittle magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe direction of magnetisation determines the location of the north and south poles and the magnetic field distribution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps between the magnet and a steel surface can significantly reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSteel Thickness and Composition\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe thickness and magnetic properties of the receiving steel affect the magnetic circuit and holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSurface Coatings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePaint, protective coatings and other materials can increase separation between the magnet and steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExposure to excessive heat can reduce magnetic performance and may cause irreversible demagnetisation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Loading\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eResistance to direct separation can differ substantially from resistance to sliding or shear forces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRing Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outer diameter, central hole and thickness influence the magnetic field distribution and overall magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent chipping or cracking.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid allowing magnets to snap together or collide with steel objects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill, cut or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid applying excessive pressure around the central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep the magnet clean and free from metal filings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid prolonged exposure to moisture unless environmental suitability has been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore magnets separately or with suitable protective spacing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect the magnet for damage before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium Rare Earth magnets are inherently brittle and may chip or fracture if subjected to impact or excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Strong magnetic attraction can trap fingers or skin between magnets and ferromagnetic surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSwallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Small magnets must be kept away from children. Swallowing magnets can cause serious internal injuries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers, implanted medical devices and magnetically sensitive medical equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with certain electronic devices, sensors and magnetic storage media.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMounting Considerations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The central hole does not make the magnet suitable for direct high-pressure fastening. Use appropriate mechanical support.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature has not been confirmed for this specific product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent testing is recommended before use where magnetic failure could create a safety risk.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat size is this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e25mm outer diameter, 12mm inner diameter and 5mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does OD25mm mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOD25mm refers to the magnet's outer diameter of 25mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does ID12mm mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eID12mm refers to the diameter of the central hole, which measures 12mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat magnetic grade is this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN38 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N38 a strong magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. N38 is a high-energy Rare Earth magnetic grade that provides strong magnetic performance relative to size.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA specific pull-force rating has not been supplied for this product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss rating?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA surface Gauss measurement has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified. Confirm pole orientation before use in applications requiring a particular magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I put a bolt through the centre hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA suitable bolt or fastener may pass through the 12mm hole if sufficient clearance is available. However, the magnet should not be subjected to excessive clamping pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the centre hole countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo countersunk feature has been specified. The product is described as having a 12mm central hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be used on a shaft?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, yes. The 12mm centre opening may accommodate an appropriately sized shaft, provided mechanical clearance, retention and operating conditions are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes this magnet require electricity?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. It is a permanent magnet and produces its own magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I glue this magnet into a housing?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, a compatible adhesive may be used in a suitable assembly. Confirm adhesive compatibility with the magnet's coating and intended operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be drilled or cut?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets are brittle and should not be drilled, cut or machined using ordinary workshop methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt depends on the stainless steel grade. Some stainless steels are ferromagnetic, while others have little or no magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been specified. Avoid prolonged moisture exposure unless the magnet's coating and environmental suitability have been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does this magnet have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe coating has not been specified in the supplied product information.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been supplied for this specific magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I stack multiple ring magnets?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, but stacking changes the magnetic field and creates additional handling hazards. Confirm pole orientation and use suitable mechanical support.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this suitable for precision engineering?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Its defined ring geometry makes it a potential option for precision engineering and custom magnetic assemblies, subject to dimensional tolerances and performance requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN38 Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Pot Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom Magnetic Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Ring Magnet – OD25mm x ID12mm x H5mm | N38\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact Rare Earth permanent magnet with a central through-hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecific pull force, surface Gauss, magnetisation direction, coating and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on installation conditions, receiving materials, air gaps, magnetic pole orientation and operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle and must be handled carefully. Avoid excessive pressure around the central hole and independently verify suitability for demanding or safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296062324868,"sku":"R-OD25H5ID12-N38","price":12.35,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/2x-super-25mm-x-5mm-hole-12mm-n38-ring-magnets---neodymium-rare-earth-round--1.png?v=1752624253"},{"product_id":"smco-countersunk-magnet-d20mm-x-10mm-yxg28-s","title":"SmCo Ring Magnet OD7m x H5mm | Hole 2.6mm | S270 | North Marked","description":"\u003cp\u003eThere are several types of magnets that are referred to as Rare Earth magnets and \u003ca href=\"\/collections\/samarium-cobalt-magnets\" title=\"Samarium Cobalt\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSamarium Cobalt magnets \u003c\/a\u003eone of these. They have several key attributes that make them well suited to particular applications. Automotive and some medical applications utilise Samarium Cobalt magnets like this ring magnet as they have superior resistance to corrosive elements. In addition to this they are stable at high temperatures, continuing to provide sustained magnetic power at over 200 degrees Celsius. To find out more please take a look at our\u003ca href=\"\/pages\/magnet-wiki\" title=\"Magnet Wiki\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e magnet wiki \u003c\/a\u003epage.\u003cbr\u003e\u003cbr\u003eSimilar to other Rare Earth magnets, like \u003ca href=\"\/collections\/neodymium-magnets\" title=\"Neodymium Magnets\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eNeodymium magnets\u003c\/a\u003e, Samarium Cobalt magnets are quite brittle in nature. This is due to the sintering process that occurs in manufacturing the magnets. It is important to handle all magnets with care as they can chip or shatter when subjected to impact. This is particularly the case with Samarium Cobalt ring magnets. The thin profile and central hole mean they are more likely to be damaged. However in most cases ring magnets are used as components within a device and are therefore protected from physical impacts.\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are samarium cobalt magnets used for?\u003c\/strong\u003e\u003cbr\u003eSamarium cobalt ring magnets are frequently used as component parts within devices. They are particularly sought after for applications that will subject the magnet to a humid or corrosive environment. \u003cbr\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296062718084,"sku":"39015","price":11.44,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/smcoring7x5.jpg?v=1781863419"},{"product_id":"neodymium-ring-magnet-od19xid8xh4-n38","title":"Neodymium Ring Magnet OD19mm x H4mm | Hole 8mm N38","description":"\u003cp\u003e\u003cstrong\u003eNeodymium Ring Magnets\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNeodymium magnetic products are the unbeatable leader when it comes to holding strength either at home or in more industrial settings. Strong rare earth ring shaped magnets have similar benefits to those of slim, low height disc magnets but have the additional convenience of a central hole by which the magnet can be attached to another surface with wire or string. This can be done either casually or for the long term and by using this simple and flexible form of attachment, commitment to invasive and permanent surface-damaging types of fasteners is no longer necessary. This low-tech but efficient form of attachment also allows the strong, circular ring-shaped magnets to be quickly relocated or removed completely for use at a later date. Magnetic hold can be used to display artwork, support decorations, hang signage or to keep doors and cabinetry closed. Ring-shaped Neodymium magnets are popular with many customers who find them easy to use and adaptable to a wide range of holding requirements around the home or workplace.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296069501060,"sku":"R-OD19H4ID8","price":8.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23008.jpg?v=1752624136"},{"product_id":"neodymium-countersunk-ring-magnet-od25mm-x-10mm-c-hole-d12-6-north","title":"Neodymium Countersunk Ring Magnet - OD25mm x 10mm C\/hole d12\/6 | NORTH","description":"\u003ch2 data-section-id=\"1auofom\" data-start=\"0\" data-end=\"73\"\u003eNeodymium Countersunk Ring Magnet - OD25mm x 10mm C\/Hole d12\/6 | NORTH\u003c\/h2\u003e\n\u003cp data-start=\"75\" data-end=\"512\"\u003ePowerful, versatile, and designed for secure screw fixing, this \u003cstrong data-start=\"139\" data-end=\"176\"\u003eNeodymium Countersunk Ring Magnet\u003c\/strong\u003e features an \u003cstrong data-start=\"189\" data-end=\"215\"\u003eouter diameter of 25mm\u003c\/strong\u003e, a \u003cstrong data-start=\"219\" data-end=\"237\"\u003e10mm thickness\u003c\/strong\u003e, and a \u003cstrong data-start=\"245\" data-end=\"342\"\u003ecountersunk centre hole with a 12mm outer countersink diameter and 6mm internal hole diameter\u003c\/strong\u003e. Manufactured from high-strength rare earth neodymium, this magnet is ideal for applications requiring a strong magnetic hold combined with a flush-mounted installation.\u003c\/p\u003e\n\u003cp data-start=\"514\" data-end=\"923\"\u003eThis version is supplied with the \u003cstrong data-start=\"548\" data-end=\"586\"\u003eNorth pole on the countersunk face\u003c\/strong\u003e, making it particularly useful for specialised mounting applications, magnetic assemblies, and projects where pole orientation is important. The countersunk design allows the magnet to be securely fixed using a suitable countersunk screw, creating a clean, professional finish while maintaining maximum magnetic contact across the face.\u003c\/p\u003e\n\u003cp data-start=\"925\" data-end=\"1231\"\u003eFinished with a durable \u003cstrong data-start=\"949\" data-end=\"974\"\u003eNiCuNi nickel coating\u003c\/strong\u003e, this magnet offers excellent resistance to corrosion and wear while maintaining a polished metallic appearance. Its ring design and substantial thickness provide excellent magnetic performance for industrial, engineering, commercial, and DIY applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1233\" data-end=\"1256\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1257\" data-end=\"1656\"\u003e\n\u003cli data-section-id=\"jeewc2\" data-start=\"1257\" data-end=\"1316\"\u003ePowerful \u003cstrong data-start=\"1268\" data-end=\"1316\"\u003erare earth neodymium countersunk ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cpt6e1\" data-start=\"1317\" data-end=\"1355\"\u003eDimensions: \u003cstrong data-start=\"1331\" data-end=\"1355\"\u003e25mm OD x 10mm thick\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kcyaoj\" data-start=\"1356\" data-end=\"1434\"\u003eCountersunk hole: \u003cstrong data-start=\"1376\" data-end=\"1434\"\u003e12mm countersink diameter \/ 6mm internal hole diameter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7z28py\" data-start=\"1435\" data-end=\"1471\"\u003e\u003cstrong data-start=\"1437\" data-end=\"1471\"\u003eNorth pole on countersunk face\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"65ktvy\" data-start=\"1472\" data-end=\"1509\"\u003eEasy flush-mount screw installation\u003c\/li\u003e\n\u003cli data-section-id=\"1wk2n28\" data-start=\"1510\" data-end=\"1552\"\u003eDurable \u003cstrong data-start=\"1520\" data-end=\"1552\"\u003eNiCuNi nickel plated coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kc44qa\" data-start=\"1553\" data-end=\"1590\"\u003eStrong magnetic holding performance\u003c\/li\u003e\n\u003cli data-section-id=\"nyyibs\" data-start=\"1591\" data-end=\"1656\"\u003eSuitable for industrial, commercial, and technical applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1658\" data-end=\"1681\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1682\" data-end=\"1963\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1682\" data-end=\"1709\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"pxnzho\" data-start=\"1710\" data-end=\"1748\"\u003eMachinery and engineering assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"1deam9f\" data-start=\"1749\" data-end=\"1787\"\u003eCabinetry and furniture construction\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"1788\" data-end=\"1816\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"zengh2\" data-start=\"1817\" data-end=\"1852\"\u003eSignage and display installations\u003c\/li\u003e\n\u003cli data-section-id=\"pmkcr5\" data-start=\"1853\" data-end=\"1885\"\u003eProduct design and prototyping\u003c\/li\u003e\n\u003cli data-section-id=\"guk59f\" data-start=\"1886\" data-end=\"1912\"\u003eCustom magnetic projects\u003c\/li\u003e\n\u003cli data-section-id=\"em7knd\" data-start=\"1913\" data-end=\"1963\"\u003eApplications requiring specific pole orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"1965\" data-end=\"1980\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"1981\" data-end=\"2371\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely powerful and should be handled carefully. Magnets may snap together unexpectedly and can chip or crack upon impact. When mounting with screws, avoid overtightening as excessive force may damage the magnet. Keep away from children, pacemakers, electronic devices, and magnetic storage media. Pole orientation is specified as \u003cstrong data-start=\"2337\" data-end=\"2370\"\u003eNorth on the countersunk face\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079233156,"sku":"23005BNth","price":21.37,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23004_1_1.jpg?v=1752623941"},{"product_id":"neodymium-countersunk-ring-magnet-od25mm-x-10mm-c-hole-d12-6-south","title":"Neodymium Countersunk Ring Magnet - OD25mm x 10mm C\/hole d12\/6 | SOUTH","description":"\u003ch2 data-section-id=\"1b7xsak\" data-start=\"0\" data-end=\"73\"\u003eNeodymium Countersunk Ring Magnet - OD25mm x 10mm C\/Hole d12\/6 | SOUTH\u003c\/h2\u003e\n\u003cp data-start=\"75\" data-end=\"512\"\u003ePowerful, versatile, and designed for secure screw fixing, this \u003cstrong data-start=\"139\" data-end=\"176\"\u003eNeodymium Countersunk Ring Magnet\u003c\/strong\u003e features an \u003cstrong data-start=\"189\" data-end=\"215\"\u003eouter diameter of 25mm\u003c\/strong\u003e, a \u003cstrong data-start=\"219\" data-end=\"237\"\u003e10mm thickness\u003c\/strong\u003e, and a \u003cstrong data-start=\"245\" data-end=\"342\"\u003ecountersunk centre hole with a 12mm outer countersink diameter and 6mm internal hole diameter\u003c\/strong\u003e. Manufactured from high-strength rare earth neodymium, this magnet is ideal for applications requiring a strong magnetic hold combined with a flush-mounted installation.\u003c\/p\u003e\n\u003cp data-start=\"514\" data-end=\"944\"\u003eThis version is supplied with the \u003cstrong data-start=\"548\" data-end=\"586\"\u003eSouth pole on the countersunk face\u003c\/strong\u003e, making it ideal for specialised magnetic assemblies, paired magnet systems, and applications where a specific magnetic pole orientation is required. The countersunk design allows the magnet to be securely fastened using a suitable countersunk screw, creating a clean and professional installation while maintaining maximum magnetic contact across the face.\u003c\/p\u003e\n\u003cp data-start=\"946\" data-end=\"1274\"\u003eFinished with a durable \u003cstrong data-start=\"970\" data-end=\"995\"\u003eNiCuNi nickel coating\u003c\/strong\u003e, this magnet offers excellent resistance to corrosion and wear while maintaining a polished metallic appearance. Its ring-shaped design and substantial thickness provide excellent magnetic performance for industrial, engineering, manufacturing, commercial, and DIY applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1276\" data-end=\"1299\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1300\" data-end=\"1699\"\u003e\n\u003cli data-section-id=\"jeewc2\" data-start=\"1300\" data-end=\"1359\"\u003ePowerful \u003cstrong data-start=\"1311\" data-end=\"1359\"\u003erare earth neodymium countersunk ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"cpt6e1\" data-start=\"1360\" data-end=\"1398\"\u003eDimensions: \u003cstrong data-start=\"1374\" data-end=\"1398\"\u003e25mm OD x 10mm thick\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kcyaoj\" data-start=\"1399\" data-end=\"1477\"\u003eCountersunk hole: \u003cstrong data-start=\"1419\" data-end=\"1477\"\u003e12mm countersink diameter \/ 6mm internal hole diameter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1lvdem4\" data-start=\"1478\" data-end=\"1514\"\u003e\u003cstrong data-start=\"1480\" data-end=\"1514\"\u003eSouth pole on countersunk face\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"65ktvy\" data-start=\"1515\" data-end=\"1552\"\u003eEasy flush-mount screw installation\u003c\/li\u003e\n\u003cli data-section-id=\"1wk2n28\" data-start=\"1553\" data-end=\"1595\"\u003eDurable \u003cstrong data-start=\"1563\" data-end=\"1595\"\u003eNiCuNi nickel plated coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kc44qa\" data-start=\"1596\" data-end=\"1633\"\u003eStrong magnetic holding performance\u003c\/li\u003e\n\u003cli data-section-id=\"nyyibs\" data-start=\"1634\" data-end=\"1699\"\u003eSuitable for industrial, commercial, and technical applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1701\" data-end=\"1724\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1725\" data-end=\"2006\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1725\" data-end=\"1752\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"pxnzho\" data-start=\"1753\" data-end=\"1791\"\u003eMachinery and engineering assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"1deam9f\" data-start=\"1792\" data-end=\"1830\"\u003eCabinetry and furniture construction\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"1831\" data-end=\"1859\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"zengh2\" data-start=\"1860\" data-end=\"1895\"\u003eSignage and display installations\u003c\/li\u003e\n\u003cli data-section-id=\"pmkcr5\" data-start=\"1896\" data-end=\"1928\"\u003eProduct design and prototyping\u003c\/li\u003e\n\u003cli data-section-id=\"guk59f\" data-start=\"1929\" data-end=\"1955\"\u003eCustom magnetic projects\u003c\/li\u003e\n\u003cli data-section-id=\"em7knd\" data-start=\"1956\" data-end=\"2006\"\u003eApplications requiring specific pole orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"2008\" data-end=\"2023\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"2024\" data-end=\"2414\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely powerful and should be handled carefully. Magnets may snap together unexpectedly and can chip or crack upon impact. When mounting with screws, avoid overtightening as excessive force may damage the magnet. Keep away from children, pacemakers, electronic devices, and magnetic storage media. Pole orientation is specified as \u003cstrong data-start=\"2380\" data-end=\"2413\"\u003eSouth on the countersunk face\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079298692,"sku":"23005BSth","price":21.37,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23004_1_1_s.jpg?v=1752623940"},{"product_id":"neodymium-countersunk-ring-magnet-od12-5mm-x-6mm-c-hole-d3-south","title":"Neodymium Countersunk Ring Magnet - OD12.5mm x 6mm C\/hole d3\/d9 | SOUTH","description":"\u003ch2 data-section-id=\"12iopnz\" data-start=\"0\" data-end=\"74\"\u003eNeodymium Countersunk Ring Magnet - OD12.5mm x 6mm C\/Hole d3\/d9 | SOUTH\u003c\/h2\u003e\n\u003cp data-start=\"76\" data-end=\"499\"\u003eCompact, powerful, and designed for secure screw mounting, this \u003cstrong data-start=\"140\" data-end=\"177\"\u003eNeodymium Countersunk Ring Magnet\u003c\/strong\u003e features an \u003cstrong data-start=\"190\" data-end=\"218\"\u003eouter diameter of 12.5mm\u003c\/strong\u003e, a \u003cstrong data-start=\"222\" data-end=\"239\"\u003e6mm thickness\u003c\/strong\u003e, and a \u003cstrong data-start=\"247\" data-end=\"337\"\u003ecountersunk centre hole with a 3mm internal hole diameter and 9mm countersunk diameter\u003c\/strong\u003e. Manufactured from high-strength rare earth neodymium, this magnet is ideal for applications requiring a strong magnetic hold in a compact, screw-fixable design.\u003c\/p\u003e\n\u003cp data-start=\"501\" data-end=\"906\"\u003eThis version is supplied with the \u003cstrong data-start=\"535\" data-end=\"573\"\u003eSouth pole on the countersunk face\u003c\/strong\u003e, making it suitable for specialised magnetic assemblies, paired magnet systems, and applications where pole orientation is important. The countersunk hole allows the magnet to be mounted flush using a suitable countersunk screw, providing a neat, professional installation while maintaining maximum magnetic contact across the face.\u003c\/p\u003e\n\u003cp data-start=\"908\" data-end=\"1308\"\u003eFinished with a durable \u003cstrong data-start=\"932\" data-end=\"957\"\u003eNiCuNi nickel coating\u003c\/strong\u003e, this magnet offers excellent resistance to corrosion and wear while maintaining a polished metallic appearance. Its compact size makes it ideal for cabinetry, display systems, product design, workshop fixtures, engineering projects, electronics, and custom fabrication applications where space is limited but strong magnetic performance is required.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1310\" data-end=\"1333\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1334\" data-end=\"1722\"\u003e\n\u003cli data-section-id=\"jeewc2\" data-start=\"1334\" data-end=\"1393\"\u003ePowerful \u003cstrong data-start=\"1345\" data-end=\"1393\"\u003erare earth neodymium countersunk ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nferch\" data-start=\"1394\" data-end=\"1433\"\u003eDimensions: \u003cstrong data-start=\"1408\" data-end=\"1433\"\u003e12.5mm OD x 6mm thick\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"yys1qj\" data-start=\"1434\" data-end=\"1502\"\u003eCountersunk hole: \u003cstrong data-start=\"1454\" data-end=\"1502\"\u003e3mm internal hole \/ 9mm countersink diameter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1lvdem4\" data-start=\"1503\" data-end=\"1539\"\u003e\u003cstrong data-start=\"1505\" data-end=\"1539\"\u003eSouth pole on countersunk face\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"i8mahm\" data-start=\"1540\" data-end=\"1575\"\u003eCompact screw-fix mounting design\u003c\/li\u003e\n\u003cli data-section-id=\"1wk2n28\" data-start=\"1576\" data-end=\"1618\"\u003eDurable \u003cstrong data-start=\"1586\" data-end=\"1618\"\u003eNiCuNi nickel plated coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kc44qa\" data-start=\"1619\" data-end=\"1656\"\u003eStrong magnetic holding performance\u003c\/li\u003e\n\u003cli data-section-id=\"nyyibs\" data-start=\"1657\" data-end=\"1722\"\u003eSuitable for industrial, commercial, and technical applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1724\" data-end=\"1747\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1748\" data-end=\"2029\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1748\" data-end=\"1775\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"1s6mc5k\" data-start=\"1776\" data-end=\"1802\"\u003eCabinet and door catches\u003c\/li\u003e\n\u003cli data-section-id=\"pmkcr5\" data-start=\"1803\" data-end=\"1835\"\u003eProduct design and prototyping\u003c\/li\u003e\n\u003cli data-section-id=\"nxdsp\" data-start=\"1836\" data-end=\"1874\"\u003eElectronics and technical assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"1875\" data-end=\"1903\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"zengh2\" data-start=\"1904\" data-end=\"1939\"\u003eSignage and display installations\u003c\/li\u003e\n\u003cli data-section-id=\"qrnmpo\" data-start=\"1940\" data-end=\"1978\"\u003eEngineering and fabrication projects\u003c\/li\u003e\n\u003cli data-section-id=\"em7knd\" data-start=\"1979\" data-end=\"2029\"\u003eApplications requiring specific pole orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"2031\" data-end=\"2046\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"2047\" data-end=\"2449\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely strong for their size and should be handled carefully. Small magnets can present a swallowing hazard and must be kept away from children. When mounting with screws, avoid overtightening as excessive force may damage the magnet. Keep away from pacemakers, electronic devices, and magnetic storage media. Pole orientation is specified as \u003cstrong data-start=\"2415\" data-end=\"2448\"\u003eSouth on the countersunk face.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079364228,"sku":"23012 Sth","price":3.32,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23012_600x_b5805d90-1db1-46d0-8f42-05a25f6648d1.jpg?v=1752623939"},{"product_id":"neodymium-countersunk-ring-magnet-od12-5mm-x-6mm-c-hole-d3-north","title":"Neodymium Countersunk Ring Magnet - OD12.5mm x 6mm C\/hole d3\/d9 | NORTH","description":"\u003ch2 data-section-id=\"12qn851\" data-start=\"0\" data-end=\"74\"\u003eNeodymium Countersunk Ring Magnet - OD12.5mm x 6mm C\/Hole d3\/d9 | NORTH\u003c\/h2\u003e\n\u003cp data-start=\"76\" data-end=\"484\"\u003eCompact, powerful, and designed for secure screw mounting, this \u003cstrong data-start=\"140\" data-end=\"177\"\u003eNeodymium Countersunk Ring Magnet\u003c\/strong\u003e features an \u003cstrong data-start=\"190\" data-end=\"218\"\u003eouter diameter of 12.5mm\u003c\/strong\u003e, a \u003cstrong data-start=\"222\" data-end=\"239\"\u003e6mm thickness\u003c\/strong\u003e, and a \u003cstrong data-start=\"247\" data-end=\"337\"\u003ecountersunk centre hole with a 3mm internal hole diameter and 9mm countersunk diameter\u003c\/strong\u003e. Manufactured from high-strength rare earth neodymium, this magnet provides exceptional magnetic performance in a compact, easy-to-install design.\u003c\/p\u003e\n\u003cp data-start=\"486\" data-end=\"907\"\u003eThis version is supplied with the \u003cstrong data-start=\"520\" data-end=\"558\"\u003eNorth pole on the countersunk face\u003c\/strong\u003e, making it ideal for specialised magnetic assemblies, paired magnet systems, and applications where specific magnetic pole orientation is required. The countersunk hole allows the magnet to be mounted flush using a suitable countersunk screw, creating a neat and professional installation while maintaining maximum magnetic contact across the face.\u003c\/p\u003e\n\u003cp data-start=\"909\" data-end=\"1319\"\u003eFinished with a durable \u003cstrong data-start=\"933\" data-end=\"958\"\u003eNiCuNi nickel coating\u003c\/strong\u003e, this magnet offers excellent resistance to corrosion and wear while maintaining a polished metallic appearance. Its compact dimensions make it ideal for cabinetry, product displays, engineering projects, workshop fixtures, electronics, automation systems, and custom fabrication applications where space is limited but strong magnetic performance is required.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1321\" data-end=\"1344\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1345\" data-end=\"1733\"\u003e\n\u003cli data-section-id=\"jeewc2\" data-start=\"1345\" data-end=\"1404\"\u003ePowerful \u003cstrong data-start=\"1356\" data-end=\"1404\"\u003erare earth neodymium countersunk ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nferch\" data-start=\"1405\" data-end=\"1444\"\u003eDimensions: \u003cstrong data-start=\"1419\" data-end=\"1444\"\u003e12.5mm OD x 6mm thick\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"yys1qj\" data-start=\"1445\" data-end=\"1513\"\u003eCountersunk hole: \u003cstrong data-start=\"1465\" data-end=\"1513\"\u003e3mm internal hole \/ 9mm countersink diameter\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7z28py\" data-start=\"1514\" data-end=\"1550\"\u003e\u003cstrong data-start=\"1516\" data-end=\"1550\"\u003eNorth pole on countersunk face\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"i8mahm\" data-start=\"1551\" data-end=\"1586\"\u003eCompact screw-fix mounting design\u003c\/li\u003e\n\u003cli data-section-id=\"1wk2n28\" data-start=\"1587\" data-end=\"1629\"\u003eDurable \u003cstrong data-start=\"1597\" data-end=\"1629\"\u003eNiCuNi nickel plated coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1kc44qa\" data-start=\"1630\" data-end=\"1667\"\u003eStrong magnetic holding performance\u003c\/li\u003e\n\u003cli data-section-id=\"nyyibs\" data-start=\"1668\" data-end=\"1733\"\u003eSuitable for industrial, commercial, and technical applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1735\" data-end=\"1758\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1759\" data-end=\"2040\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1759\" data-end=\"1786\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"1s6mc5k\" data-start=\"1787\" data-end=\"1813\"\u003eCabinet and door catches\u003c\/li\u003e\n\u003cli data-section-id=\"pmkcr5\" data-start=\"1814\" data-end=\"1846\"\u003eProduct design and prototyping\u003c\/li\u003e\n\u003cli data-section-id=\"nxdsp\" data-start=\"1847\" data-end=\"1885\"\u003eElectronics and technical assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"1886\" data-end=\"1914\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"zengh2\" data-start=\"1915\" data-end=\"1950\"\u003eSignage and display installations\u003c\/li\u003e\n\u003cli data-section-id=\"qrnmpo\" data-start=\"1951\" data-end=\"1989\"\u003eEngineering and fabrication projects\u003c\/li\u003e\n\u003cli data-section-id=\"em7knd\" data-start=\"1990\" data-end=\"2040\"\u003eApplications requiring specific pole orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"2042\" data-end=\"2057\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"2058\" data-end=\"2460\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely strong for their size and should be handled carefully. Small magnets can present a swallowing hazard and must be kept away from children. When mounting with screws, avoid overtightening as excessive force may damage the magnet. Keep away from pacemakers, electronic devices, and magnetic storage media. Pole orientation is specified as \u003cstrong data-start=\"2426\" data-end=\"2459\"\u003eNorth on the countersunk face\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079495300,"sku":"23012","price":3.32,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23012_600x_5912fe34-f047-44fc-92d2-acf9bb429cd0.jpg?v=1752623938"},{"product_id":"neodymium-ring-magnet-od45mm-x-h12mm-x-id132mm-n35","title":"Neodymium Ring Magnet OD45mm x H12mm | Hole 32mm N35","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-18\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-18\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-18\" data-testid=\"conversation-turn-492\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"3e521fef-c5ed-435d-932c-421b60244642\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"1kehze5\" data-start=\"0\" data-end=\"65\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet – 45mm (OD) x 32mm (ID) x 12mm (H) | N35\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"67\" data-end=\"562\"\u003eThe \u003cstrong data-start=\"71\" data-end=\"160\"\u003eNeodymium Ring Magnet – 45mm Outer Diameter x 32mm Inner Diameter x 12mm Height | N35\u003c\/strong\u003e is a high-strength \u003cstrong data-start=\"180\" data-end=\"211\"\u003erare earth permanent magnet\u003c\/strong\u003e designed for demanding industrial, engineering, manufacturing, and commercial applications. Manufactured from premium \u003cstrong data-start=\"330\" data-end=\"372\"\u003eN35-grade Neodymium Iron Boron (NdFeB)\u003c\/strong\u003e, this precision-machined ring magnet combines powerful magnetic performance with a large central bore, making it ideal for mounting over shafts, pipes, fasteners, and mechanical components.\u003c\/p\u003e\n\u003cp data-start=\"564\" data-end=\"997\"\u003eWith an \u003cstrong data-start=\"572\" data-end=\"598\"\u003eouter diameter of 45mm\u003c\/strong\u003e, \u003cstrong data-start=\"600\" data-end=\"626\"\u003einner diameter of 32mm\u003c\/strong\u003e, and \u003cstrong data-start=\"632\" data-end=\"650\"\u003eheight of 12mm\u003c\/strong\u003e, this magnet produces a strong, concentrated magnetic field while allowing clearance for bolts, rods, bearings, or rotating assemblies. It is \u003cstrong data-start=\"793\" data-end=\"815\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the north and south poles are located on the two flat circular faces, delivering maximum holding force and magnetic coupling when installed against a ferrous steel surface.\u003c\/p\u003e\n\u003cp data-start=\"999\" data-end=\"1199\"\u003eThe magnet is protected by a durable \u003cstrong data-start=\"1036\" data-end=\"1079\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e, providing excellent resistance to corrosion, oxidation, and everyday wear while maintaining a bright, polished finish.\u003c\/p\u003e\n\u003cp data-start=\"1201\" data-end=\"1445\"\u003eWhether used in industrial machinery, magnetic couplings, automation equipment, scientific instruments, or custom engineering projects, the \u003cstrong data-start=\"1341\" data-end=\"1389\"\u003e45mm x 32mm x 12mm N35 Neodymium Ring Magnet\u003c\/strong\u003e delivers dependable, long-lasting magnetic performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1447\" data-end=\"1463\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1464\" data-end=\"1999\"\u003e\n\u003cli data-section-id=\"fca0n0\" data-start=\"1464\" data-end=\"1515\"\u003ePremium \u003cstrong data-start=\"1474\" data-end=\"1515\"\u003eN35-grade neodymium rare earth magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10czrvu\" data-start=\"1516\" data-end=\"1589\"\u003eDimensions: \u003cstrong data-start=\"1530\" data-end=\"1589\"\u003e45mm outer diameter x 32mm inner diameter x 12mm height\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ywc5h3\" data-start=\"1590\" data-end=\"1661\"\u003eLarge centre hole for shafts, bolts, tubes, and mechanical assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"lqcj4s\" data-start=\"1662\" data-end=\"1729\"\u003e\n\u003cstrong data-start=\"1664\" data-end=\"1686\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face magnetic strength\u003c\/li\u003e\n\u003cli data-section-id=\"1f2e8xx\" data-start=\"1730\" data-end=\"1794\"\u003eDurable \u003cstrong data-start=\"1740\" data-end=\"1794\"\u003enickel-copper-nickel (Ni-Cu-Ni) protective coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1cs18dc\" data-start=\"1795\" data-end=\"1844\"\u003eExcellent resistance to corrosion and oxidation\u003c\/li\u003e\n\u003cli data-section-id=\"l09vj6\" data-start=\"1845\" data-end=\"1905\"\u003ePrecision manufactured for consistent magnetic performance\u003c\/li\u003e\n\u003cli data-section-id=\"nda4dc\" data-start=\"1906\" data-end=\"1938\"\u003eHigh-strength permanent magnet\u003c\/li\u003e\n\u003cli data-section-id=\"11l6iu1\" data-start=\"1939\" data-end=\"1999\"\u003eSuitable for industrial, engineering, and OEM applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"2001\" data-end=\"2024\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"2025\" data-end=\"2348\"\u003e\n\u003cli data-section-id=\"1379ml4\" data-start=\"2025\" data-end=\"2057\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-section-id=\"1sa1yao\" data-start=\"2058\" data-end=\"2078\"\u003eMagnetic couplings\u003c\/li\u003e\n\u003cli data-section-id=\"c2fmup\" data-start=\"2079\" data-end=\"2116\"\u003eRotary and shaft-mounted assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"xiiqpm\" data-start=\"2117\" data-end=\"2150\"\u003eIndustrial automation equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1d6p2cp\" data-start=\"2151\" data-end=\"2181\"\u003eHolding and clamping systems\u003c\/li\u003e\n\u003cli data-section-id=\"1t3t4w9\" data-start=\"2182\" data-end=\"2219\"\u003eScientific and laboratory equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1dg57rp\" data-start=\"2220\" data-end=\"2249\"\u003eMagnetic separation devices\u003c\/li\u003e\n\u003cli data-section-id=\"1dy44b4\" data-start=\"2250\" data-end=\"2274\"\u003eRobotics and machinery\u003c\/li\u003e\n\u003cli data-section-id=\"1o1owck\" data-start=\"2275\" data-end=\"2302\"\u003eOEM product manufacturing\u003c\/li\u003e\n\u003cli data-section-id=\"dgx37z\" data-start=\"2303\" data-end=\"2348\"\u003eCustom engineering and fabrication projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2350\" data-end=\"2363\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2364\" data-end=\"2561\"\u003e\n\u003cli data-section-id=\"8wpcmh\" data-start=\"2364\" data-end=\"2386\"\u003eMechanical engineers\u003c\/li\u003e\n\u003cli data-section-id=\"1f0kibv\" data-start=\"2387\" data-end=\"2413\"\u003eIndustrial manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2414\" data-end=\"2438\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2439\" data-end=\"2458\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"hqt4e9\" data-start=\"2459\" data-end=\"2488\"\u003eOEM equipment manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"11x5q1g\" data-start=\"2489\" data-end=\"2509\"\u003eMachinery builders\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2510\" data-end=\"2533\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"14yh4j1\" data-start=\"2534\" data-end=\"2561\"\u003eMaintenance professionals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"4895aj\" data-start=\"2563\" data-end=\"2625\"\u003eWhy Choose a 45mm x 32mm x 12mm N35 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2627\" data-end=\"2967\"\u003eThe \u003cstrong data-start=\"2631\" data-end=\"2679\"\u003e45mm x 32mm x 12mm N35 Neodymium Ring Magnet\u003c\/strong\u003e is designed for applications requiring \u003cstrong data-start=\"2719\" data-end=\"2774\"\u003ehigh magnetic strength with a large central opening\u003c\/strong\u003e. The generous 32mm internal diameter allows the magnet to be mounted over shafts, bearings, pipes, or threaded fasteners while maintaining excellent magnetic performance around the outer ring.\u003c\/p\u003e\n\u003cp data-start=\"2969\" data-end=\"3362\"\u003eManufactured from premium \u003cstrong data-start=\"2995\" data-end=\"3012\"\u003eN35 neodymium\u003c\/strong\u003e, it delivers significantly greater magnetic strength than ferrite or ceramic ring magnets of comparable dimensions. Its robust design makes it well suited to magnetic couplings, rotary equipment, industrial machinery, positioning systems, automation projects, and heavy-duty engineering applications where reliable magnetic performance is essential.\u003c\/p\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"3364\" data-end=\"3392\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"3393\" data-end=\"3716\"\u003e\n\u003cli data-section-id=\"12y85oy\" data-start=\"3393\" data-end=\"3437\"\u003e\n\u003cstrong data-start=\"3395\" data-end=\"3408\"\u003eMaterial:\u003c\/strong\u003e Neodymium Iron Boron (NdFeB)\u003c\/li\u003e\n\u003cli data-section-id=\"j4nl5n\" data-start=\"3438\" data-end=\"3461\"\u003e\n\u003cstrong data-start=\"3440\" data-end=\"3457\"\u003eMagnet Grade:\u003c\/strong\u003e N35\u003c\/li\u003e\n\u003cli data-section-id=\"138gwy7\" data-start=\"3462\" data-end=\"3479\"\u003e\n\u003cstrong data-start=\"3464\" data-end=\"3474\"\u003eShape:\u003c\/strong\u003e Ring\u003c\/li\u003e\n\u003cli data-section-id=\"1m6v7xj\" data-start=\"3480\" data-end=\"3511\"\u003e\n\u003cstrong data-start=\"3482\" data-end=\"3506\"\u003eOuter Diameter (OD):\u003c\/strong\u003e 45mm\u003c\/li\u003e\n\u003cli data-section-id=\"mi4zfq\" data-start=\"3512\" data-end=\"3543\"\u003e\n\u003cstrong data-start=\"3514\" data-end=\"3538\"\u003eInner Diameter (ID):\u003c\/strong\u003e 32mm\u003c\/li\u003e\n\u003cli data-section-id=\"1d1imop\" data-start=\"3544\" data-end=\"3574\"\u003e\n\u003cstrong data-start=\"3546\" data-end=\"3569\"\u003eHeight (Thickness):\u003c\/strong\u003e 12mm\u003c\/li\u003e\n\u003cli data-section-id=\"1qpvcgw\" data-start=\"3575\" data-end=\"3622\"\u003e\n\u003cstrong data-start=\"3577\" data-end=\"3595\"\u003eMagnetisation:\u003c\/strong\u003e Axial (through the height)\u003c\/li\u003e\n\u003cli data-section-id=\"1k697zb\" data-start=\"3623\" data-end=\"3669\"\u003e\n\u003cstrong data-start=\"3625\" data-end=\"3637\"\u003eCoating:\u003c\/strong\u003e Nickel-Copper-Nickel (Ni-Cu-Ni)\u003c\/li\u003e\n\u003cli data-section-id=\"48w55q\" data-start=\"3670\" data-end=\"3716\"\u003e\n\u003cstrong data-start=\"3672\" data-end=\"3688\"\u003eMagnet Type:\u003c\/strong\u003e Permanent Rare Earth Magnet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"3718\" data-end=\"3733\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"3735\" data-end=\"4040\"\u003eThis is a \u003cstrong data-start=\"3745\" data-end=\"3780\"\u003ehigh-strength rare earth magnet\u003c\/strong\u003e and should be handled with care. Due to its powerful magnetic field, it can attract steel objects or other magnets suddenly and with considerable force, creating pinch hazards and potentially causing the magnet to chip or fracture if allowed to snap together.\u003c\/p\u003e\n\u003cp data-start=\"4042\" data-end=\"4322\"\u003eMaximum holding force is measured under ideal conditions using a clean, flat, thick mild steel surface with full face-to-face contact. Actual magnetic performance will vary depending on the steel thickness, air gap, surface finish, mounting arrangement, and operating environment.\u003c\/p\u003e\n\u003cp data-start=\"4324\" data-end=\"4858\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eKeep away from children, as powerful magnets present a serious swallowing hazard. Keep away from pacemakers, implanted medical devices, sensitive electronic equipment, and magnetic storage media. Do not drill, machine, or strike the magnet, as neodymium is hard but brittle and may crack or shatter under excessive impact or mechanical stress. For maximum performance and service life, avoid prolonged exposure to corrosive environments or temperatures exceeding the recommended operating range for standard \u003cstrong data-start=\"4832\" data-end=\"4839\"\u003eN35\u003c\/strong\u003e neodymium magnets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079724676,"sku":"23002","price":46.12,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23002a_2.jpg?v=1752623932"},{"product_id":"neodymium-ring-magnet-od30-x-h8-x-id15-5-mm-n38","title":"Neodymium Ring Magnet OD30mm x H8mm | Hole 15.5mm N38","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-45\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-410\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-45\" data-turn-id=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-45\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"5fac796c-61a0-4d22-a6fd-2d4b20c337f6\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 class=\"PDq2pG_selectionAnchorContainer\" data-end=\"57\" data-start=\"0\" data-section-id=\"544j36\"\u003eNeodymium Ring Magnet – OD30mm x H8mm | Hole 15.5mm | N38\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-end=\"435\" data-start=\"59\"\u003eDesigned for powerful magnetic performance and versatile mounting, this \u003cstrong data-end=\"156\" data-start=\"131\"\u003eNeodymium Ring Magnet\u003c\/strong\u003e features a \u003cstrong data-end=\"247\" data-start=\"168\"\u003e30mm outside diameter (OD), 15.5mm inside diameter (ID), and 8mm height (H)\u003c\/strong\u003e. Manufactured from premium \u003cstrong data-end=\"317\" data-start=\"275\"\u003eN38-grade NdFeB (Neodymium Iron Boron)\u003c\/strong\u003e rare earth magnetic material, this ring magnet delivers exceptional holding strength in a compact and durable design.\u003c\/p\u003e\n\u003cp data-end=\"856\" data-start=\"437\"\u003eNeodymium magnets are the strongest commercially available permanent magnets, providing significantly greater magnetic performance than ferrite, Alnico, or samarium cobalt magnets of comparable size. The \u003cstrong data-end=\"663\" data-start=\"641\"\u003e15.5mm centre hole\u003c\/strong\u003e allows the magnet to be mounted over shafts, bolts, tubes, or threaded fasteners, making it ideal for engineering, manufacturing, automation, product design, and magnetic holding applications.\u003c\/p\u003e\n\u003cp data-end=\"1095\" data-start=\"858\"\u003eThis ring magnet is \u003cstrong data-end=\"900\" data-start=\"878\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the magnetic poles are located on the two flat circular faces. This provides maximum holding force when the magnet is used against a ferrous steel surface or paired with another magnet.\u003c\/p\u003e\n\u003cp data-end=\"1285\" data-start=\"1097\"\u003eFinished with a durable \u003cstrong data-end=\"1164\" data-start=\"1121\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e, this magnet offers excellent resistance to corrosion and everyday wear while maintaining a smooth, polished appearance.\u003c\/p\u003e\n\u003ch3 data-end=\"1310\" data-start=\"1287\" data-section-id=\"565xk3\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-end=\"1797\" data-start=\"1311\"\u003e\n\u003cli data-end=\"1367\" data-start=\"1311\" data-section-id=\"2x4137\"\u003ePremium \u003cstrong data-end=\"1367\" data-start=\"1321\"\u003eN38-grade rare earth neodymium ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1419\" data-start=\"1368\" data-section-id=\"6ropay\"\u003eDimensions: \u003cstrong data-end=\"1419\" data-start=\"1382\"\u003e30mm (OD) x 15.5mm (ID) x 8mm (H)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1489\" data-start=\"1420\" data-section-id=\"o8xhm8\"\u003e\n\u003cstrong data-end=\"1444\" data-start=\"1422\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face holding performance\u003c\/li\u003e\n\u003cli data-end=\"1552\" data-start=\"1490\" data-section-id=\"1mcql6z\"\u003eLarge centre hole for mounting over bolts, shafts, and tubes\u003c\/li\u003e\n\u003cli data-end=\"1599\" data-start=\"1553\" data-section-id=\"1h8buaz\"\u003eExtremely strong magnetic force for its size\u003c\/li\u003e\n\u003cli data-end=\"1653\" data-start=\"1600\" data-section-id=\"6fc21g\"\u003eDurable \u003cstrong data-end=\"1653\" data-start=\"1610\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1705\" data-start=\"1654\" data-section-id=\"1y01z75\"\u003ePrecision-manufactured for consistent performance\u003c\/li\u003e\n\u003cli data-end=\"1737\" data-start=\"1706\" data-section-id=\"1equpbf\"\u003eLong-lasting permanent magnet\u003c\/li\u003e\n\u003cli data-end=\"1797\" data-start=\"1738\" data-section-id=\"hqhwen\"\u003eSuitable for industrial, commercial, and DIY applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1822\" data-start=\"1799\" data-section-id=\"xx0hya\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-end=\"2060\" data-start=\"1823\"\u003e\n\u003cli data-end=\"1850\" data-start=\"1823\" data-section-id=\"1f6yckt\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-end=\"1882\" data-start=\"1851\" data-section-id=\"qp7sm2\"\u003eEngineering and manufacturing\u003c\/li\u003e\n\u003cli data-end=\"1915\" data-start=\"1883\" data-section-id=\"1379ml4\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-end=\"1939\" data-start=\"1916\" data-section-id=\"1p0pfaz\"\u003eMechanical assemblies\u003c\/li\u003e\n\u003cli data-end=\"1968\" data-start=\"1940\" data-section-id=\"pkrgsj\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-end=\"1991\" data-start=\"1969\" data-section-id=\"1o8izvh\"\u003eAutomation equipment\u003c\/li\u003e\n\u003cli data-end=\"2026\" data-start=\"1992\" data-section-id=\"171fjxb\"\u003eScientific and research projects\u003c\/li\u003e\n\u003cli data-end=\"2060\" data-start=\"2027\" data-section-id=\"1vun7p8\"\u003eDIY fabrication and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2075\" data-start=\"2062\" data-section-id=\"1qmgibc\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-end=\"2255\" data-start=\"2076\"\u003e\n\u003cli data-end=\"2098\" data-start=\"2076\" data-section-id=\"8wpcmh\"\u003eMechanical engineers\u003c\/li\u003e\n\u003cli data-end=\"2114\" data-start=\"2099\" data-section-id=\"ctq1ak\"\u003eManufacturers\u003c\/li\u003e\n\u003cli data-end=\"2134\" data-start=\"2115\" data-section-id=\"1a3dn4l\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-end=\"2159\" data-start=\"2135\" data-section-id=\"1vuc9te\"\u003eIndustrial maintenance\u003c\/li\u003e\n\u003cli data-end=\"2180\" data-start=\"2160\" data-section-id=\"1mn6jmp\"\u003eAutomation systems\u003c\/li\u003e\n\u003cli data-end=\"2204\" data-start=\"2181\" data-section-id=\"12qmxv9\"\u003ePrototype development\u003c\/li\u003e\n\u003cli data-end=\"2228\" data-start=\"2205\" data-section-id=\"tuv45w\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-end=\"2255\" data-start=\"2229\" data-section-id=\"6uhs0b\"\u003eHobby and maker projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2296\" data-start=\"2257\" data-section-id=\"132zirk\"\u003eWhy Choose a Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-end=\"2726\" data-start=\"2298\"\u003eNeodymium ring magnets combine outstanding magnetic strength with the versatility of a centre mounting hole, making them ideal for applications requiring secure fixing, rotational movement, or installation around shafts and fasteners. The \u003cstrong data-end=\"2569\" data-start=\"2537\"\u003eN38-grade neodymium material\u003c\/strong\u003e provides an excellent balance of magnetic performance, durability, and value, making it suitable for a wide range of industrial and commercial applications.\u003c\/p\u003e\n\u003ch3 data-end=\"2743\" data-start=\"2728\" data-section-id=\"rjcraw\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"3356\" data-start=\"2745\"\u003eNeodymium magnets are extremely powerful and should be handled carefully to avoid pinch injuries or damage caused by magnets snapping together. Holding performance is achieved under ideal conditions using a clean, flat, thick steel surface with direct contact. Actual magnetic strength will vary depending on the application, air gap, surface finish, and mounting arrangement. Keep away from children, pacemakers, sensitive electronic devices, and magnetic storage media. Avoid drilling, machining, excessive heat, or heavy impacts, as these may permanently damage the magnet or reduce its magnetic performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079822980,"sku":"23003B","price":22.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23003b.jpg?v=1752623930"},{"product_id":"neodymium-ring-magnet-od22-x-h10-x-id4-5-mm-n38","title":"Neodymium Ring Magnet OD22mm x H10mm | Hole 4.5 mm N38","description":"\u003ch2 data-section-id=\"947uug\" data-start=\"0\" data-end=\"57\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet OD22mm x H10mm | Hole 4.5mm | N38\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"59\" data-end=\"517\"\u003eCompact, powerful, and precision-engineered, this \u003cstrong data-start=\"109\" data-end=\"134\"\u003eNeodymium Ring Magnet\u003c\/strong\u003e features a \u003cstrong data-start=\"146\" data-end=\"225\"\u003e22mm outside diameter (OD), 4.5mm inside diameter (ID), and 10mm height (H)\u003c\/strong\u003e. Manufactured from premium \u003cstrong data-start=\"253\" data-end=\"295\"\u003eN38-grade NdFeB (Neodymium Iron Boron)\u003c\/strong\u003e rare earth magnetic material, this permanent magnet delivers exceptional magnetic strength in a versatile ring design, making it ideal for engineering, manufacturing, automation, product development, and DIY applications.\u003c\/p\u003e\n\u003cp data-start=\"519\" data-end=\"923\"\u003eNeodymium magnets are the strongest commercially available permanent magnets, offering significantly greater holding force than ferrite, Alnico, or samarium cobalt magnets of similar size. The \u003cstrong data-start=\"712\" data-end=\"733\"\u003e4.5mm centre hole\u003c\/strong\u003e allows the magnet to be mounted using bolts, screws, shafts, or threaded rods, making it ideal for magnetic fixtures, mounting systems, rotating assemblies, and custom engineering projects.\u003c\/p\u003e\n\u003cp data-start=\"925\" data-end=\"1175\"\u003eThis ring magnet is \u003cstrong data-start=\"945\" data-end=\"967\"\u003eaxially magnetised\u003c\/strong\u003e, with the magnetic poles located on the two flat circular faces. This configuration provides maximum holding performance when the magnet is used against a ferrous steel surface or paired with another magnet.\u003c\/p\u003e\n\u003cp data-start=\"1177\" data-end=\"1362\"\u003eProtected with a durable \u003cstrong data-start=\"1202\" data-end=\"1245\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e, this magnet offers excellent resistance to corrosion and everyday wear while maintaining a smooth, polished finish.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1364\" data-end=\"1387\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1388\" data-end=\"1844\"\u003e\n\u003cli data-section-id=\"2x4137\" data-start=\"1388\" data-end=\"1444\"\u003ePremium \u003cstrong data-start=\"1398\" data-end=\"1444\"\u003eN38-grade rare earth neodymium ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vxe1o0\" data-start=\"1445\" data-end=\"1496\"\u003eDimensions: \u003cstrong data-start=\"1459\" data-end=\"1496\"\u003e22mm (OD) x 4.5mm (ID) x 10mm (H)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ubknkd\" data-start=\"1497\" data-end=\"1563\"\u003e\n\u003cstrong data-start=\"1499\" data-end=\"1521\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face holding strength\u003c\/li\u003e\n\u003cli data-section-id=\"f99s2\" data-start=\"1564\" data-end=\"1610\"\u003ePrecision \u003cstrong data-start=\"1576\" data-end=\"1597\"\u003e4.5mm centre hole\u003c\/strong\u003e for mounting\u003c\/li\u003e\n\u003cli data-section-id=\"1bgekfy\" data-start=\"1611\" data-end=\"1650\"\u003eExtremely strong magnetic performance\u003c\/li\u003e\n\u003cli data-section-id=\"6fc21g\" data-start=\"1651\" data-end=\"1704\"\u003eDurable \u003cstrong data-start=\"1661\" data-end=\"1704\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1czhckk\" data-start=\"1705\" data-end=\"1752\"\u003ePrecision-manufactured for consistent quality\u003c\/li\u003e\n\u003cli data-section-id=\"1equpbf\" data-start=\"1753\" data-end=\"1784\"\u003eLong-lasting permanent magnet\u003c\/li\u003e\n\u003cli data-section-id=\"hqhwen\" data-start=\"1785\" data-end=\"1844\"\u003eSuitable for industrial, commercial, and DIY applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1846\" data-end=\"1869\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1870\" data-end=\"2097\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1870\" data-end=\"1897\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"qp7sm2\" data-start=\"1898\" data-end=\"1929\"\u003eEngineering and manufacturing\u003c\/li\u003e\n\u003cli data-section-id=\"1379ml4\" data-start=\"1930\" data-end=\"1962\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-section-id=\"1p0pfaz\" data-start=\"1963\" data-end=\"1986\"\u003eMechanical assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"1o8izvh\" data-start=\"1987\" data-end=\"2009\"\u003eAutomation equipment\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"2010\" data-end=\"2038\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"1od4uuq\" data-start=\"2039\" data-end=\"2060\"\u003eScientific research\u003c\/li\u003e\n\u003cli data-section-id=\"yjfoz2\" data-start=\"2061\" data-end=\"2097\"\u003eDIY fabrication and product design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2099\" data-end=\"2112\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2113\" data-end=\"2281\"\u003e\n\u003cli data-section-id=\"7d099e\" data-start=\"2113\" data-end=\"2124\"\u003eEngineers\u003c\/li\u003e\n\u003cli data-section-id=\"ctq1ak\" data-start=\"2125\" data-end=\"2140\"\u003eManufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2141\" data-end=\"2160\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"1vuc9te\" data-start=\"2161\" data-end=\"2185\"\u003eIndustrial maintenance\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2186\" data-end=\"2210\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"12qmxv9\" data-start=\"2211\" data-end=\"2234\"\u003ePrototype development\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2235\" data-end=\"2258\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"1h62ywz\" data-start=\"2259\" data-end=\"2281\"\u003eHobbyists and makers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wfcj9n\" data-start=\"2283\" data-end=\"2327\"\u003eWhy Choose an N38 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2329\" data-end=\"2671\"\u003eN38-grade neodymium ring magnets provide an excellent balance of magnetic strength, durability, and cost-effectiveness. Their centre hole makes them easy to mount onto shafts, bolts, or threaded fasteners, while their compact size and powerful magnetic field make them suitable for countless industrial, commercial, and creative applications.\u003c\/p\u003e\n\u003cp data-start=\"2673\" data-end=\"2865\"\u003eThe ring design also allows for easy integration into rotating mechanisms, magnetic couplings, clamping systems, and custom magnetic assemblies where both strength and precision are essential.\u003c\/p\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"2867\" data-end=\"2882\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"2884\" data-end=\"3511\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely powerful and should be handled carefully to prevent pinch injuries or damage caused by magnets snapping together. Holding performance is achieved under ideal conditions using a clean, flat, thick steel surface with direct contact. Actual magnetic strength will vary depending on the application, air gap, mounting arrangement, and the material being attracted. Keep away from children, pacemakers, sensitive electronic devices, and magnetic storage media. Avoid drilling, machining, excessive heat, or heavy impacts, as these may permanently damage the magnet or reduce its magnetic performance.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079888516,"sku":"23004A","price":14.59,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23005.jpg?v=1752623929"},{"product_id":"neodymium-ring-magnet-od25-x-h8-x-id13mm-n38","title":"Neodymium Ring Magnet OD25mm x H8mm | Hole 13mm N38","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-47\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-47\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-47\" data-testid=\"conversation-turn-414\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"9080f327-77b0-4cf4-bf54-9037eab78ce2\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"1k3vob\" data-start=\"0\" data-end=\"55\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet OD25mm x H8mm | Hole13mm | N38\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"57\" data-end=\"498\"\u003eDesigned for exceptional magnetic performance in a compact and versatile format, this \u003cstrong data-start=\"143\" data-end=\"168\"\u003eNeodymium Ring Magnet\u003c\/strong\u003e features a \u003cstrong data-start=\"180\" data-end=\"257\"\u003e25mm outside diameter (OD), 13mm inside diameter (ID), and 8mm height (H)\u003c\/strong\u003e. Manufactured from premium \u003cstrong data-start=\"285\" data-end=\"327\"\u003eN38-grade NdFeB (Neodymium Iron Boron)\u003c\/strong\u003e rare earth magnetic material, this permanent magnet delivers powerful holding force for engineering, manufacturing, automation, product development, and DIY applications.\u003c\/p\u003e\n\u003cp data-start=\"500\" data-end=\"933\"\u003eNeodymium magnets are the strongest commercially available permanent magnets, providing significantly greater magnetic strength than ferrite, Alnico, or samarium cobalt magnets of comparable dimensions. The \u003cstrong data-start=\"707\" data-end=\"727\"\u003e13mm centre hole\u003c\/strong\u003e allows the magnet to be mounted over shafts, bolts, tubes, or threaded fasteners, making it an excellent choice for magnetic mounting systems, rotating assemblies, couplings, and custom mechanical designs.\u003c\/p\u003e\n\u003cp data-start=\"935\" data-end=\"1188\"\u003eThis ring magnet is \u003cstrong data-start=\"955\" data-end=\"977\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the magnetic poles are located on the two flat circular faces. This orientation provides maximum face-to-face holding performance when used against ferrous steel surfaces or paired with another magnet.\u003c\/p\u003e\n\u003cp data-start=\"1190\" data-end=\"1405\"\u003eThe magnet is protected by a durable \u003cstrong data-start=\"1227\" data-end=\"1270\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e, offering excellent resistance to corrosion and wear while providing a smooth, polished finish suitable for professional applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1407\" data-end=\"1430\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1431\" data-end=\"1909\"\u003e\n\u003cli data-section-id=\"2x4137\" data-start=\"1431\" data-end=\"1487\"\u003ePremium \u003cstrong data-start=\"1441\" data-end=\"1487\"\u003eN38-grade rare earth neodymium ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"k0kj5v\" data-start=\"1488\" data-end=\"1537\"\u003eDimensions: \u003cstrong data-start=\"1502\" data-end=\"1537\"\u003e25mm (OD) x 13mm (ID) x 8mm (H)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ubknkd\" data-start=\"1538\" data-end=\"1604\"\u003e\n\u003cstrong data-start=\"1540\" data-end=\"1562\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face holding strength\u003c\/li\u003e\n\u003cli data-section-id=\"1t4q0y0\" data-start=\"1605\" data-end=\"1675\"\u003ePrecision \u003cstrong data-start=\"1617\" data-end=\"1637\"\u003e13mm centre hole\u003c\/strong\u003e for mounting over shafts or fasteners\u003c\/li\u003e\n\u003cli data-section-id=\"1bgekfy\" data-start=\"1676\" data-end=\"1715\"\u003eExtremely strong magnetic performance\u003c\/li\u003e\n\u003cli data-section-id=\"6fc21g\" data-start=\"1716\" data-end=\"1769\"\u003eDurable \u003cstrong data-start=\"1726\" data-end=\"1769\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1czhckk\" data-start=\"1770\" data-end=\"1817\"\u003ePrecision-manufactured for consistent quality\u003c\/li\u003e\n\u003cli data-section-id=\"1equpbf\" data-start=\"1818\" data-end=\"1849\"\u003eLong-lasting permanent magnet\u003c\/li\u003e\n\u003cli data-section-id=\"hqhwen\" data-start=\"1850\" data-end=\"1909\"\u003eSuitable for industrial, commercial, and DIY applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1911\" data-end=\"1934\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1935\" data-end=\"2159\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1935\" data-end=\"1962\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"qp7sm2\" data-start=\"1963\" data-end=\"1994\"\u003eEngineering and manufacturing\u003c\/li\u003e\n\u003cli data-section-id=\"1379ml4\" data-start=\"1995\" data-end=\"2027\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-section-id=\"1p0pfaz\" data-start=\"2028\" data-end=\"2051\"\u003eMechanical assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"1o8izvh\" data-start=\"2052\" data-end=\"2074\"\u003eAutomation equipment\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"2075\" data-end=\"2103\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"1od4uuq\" data-start=\"2104\" data-end=\"2125\"\u003eScientific research\u003c\/li\u003e\n\u003cli data-section-id=\"1vun7p8\" data-start=\"2126\" data-end=\"2159\"\u003eDIY fabrication and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2161\" data-end=\"2174\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2175\" data-end=\"2354\"\u003e\n\u003cli data-section-id=\"8wpcmh\" data-start=\"2175\" data-end=\"2197\"\u003eMechanical engineers\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2198\" data-end=\"2217\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"ctq1ak\" data-start=\"2218\" data-end=\"2233\"\u003eManufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1vuc9te\" data-start=\"2234\" data-end=\"2258\"\u003eIndustrial maintenance\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2259\" data-end=\"2283\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"12qmxv9\" data-start=\"2284\" data-end=\"2307\"\u003ePrototype development\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2308\" data-end=\"2331\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"102oeyr\" data-start=\"2332\" data-end=\"2354\"\u003eMakers and hobbyists\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wfcj9n\" data-start=\"2356\" data-end=\"2400\"\u003eWhy Choose an N38 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2402\" data-end=\"2817\"\u003eN38-grade neodymium ring magnets provide an excellent combination of strength, durability, and versatility. The centre hole allows for easy installation onto shafts, bolts, or threaded rods, making them ideal for applications requiring secure mounting and reliable magnetic performance. Their ring design also makes them suitable for rotating components, magnetic couplings, sensors, and custom magnetic assemblies.\u003c\/p\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"2819\" data-end=\"2834\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"2836\" data-end=\"3461\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely powerful and should be handled carefully to avoid pinch injuries or damage caused by magnets snapping together. Holding performance is achieved under ideal conditions using a clean, flat, thick steel surface with direct contact. Actual magnetic strength will vary depending on the application, air gap, mounting arrangement, and the material being attracted. Keep away from children, pacemakers, sensitive electronic devices, and magnetic storage media. Avoid drilling, machining, excessive heat, or heavy impacts, as these may permanently damage the magnet or reduce its magnetic performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296079986820,"sku":"23005","price":12.24,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23004_1.jpg?v=1752623928"},{"product_id":"neodymium-ring-magnet-od19-x-h10-x-id6-mm-n38","title":"Neodymium Ring Magnet OD19mm x H10mm | Hole 6mm N38","description":"\u003ch2 data-section-id=\"11und21\" data-start=\"0\" data-end=\"55\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet OD19mm x H10mm | Hole 6mm | N38\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"57\" data-end=\"509\"\u003eCompact, powerful, and engineered for precision, this \u003cstrong data-start=\"111\" data-end=\"136\"\u003eNeodymium Ring Magnet\u003c\/strong\u003e features a \u003cstrong data-start=\"148\" data-end=\"225\"\u003e19mm outside diameter (OD), 6mm inside diameter (ID), and 10mm height (H)\u003c\/strong\u003e. Manufactured from premium \u003cstrong data-start=\"253\" data-end=\"295\"\u003eN38-grade NdFeB (Neodymium Iron Boron)\u003c\/strong\u003e rare earth magnetic material, this permanent magnet delivers exceptional magnetic strength in a versatile ring design, making it ideal for engineering, manufacturing, automation, electronics, and DIY applications.\u003c\/p\u003e\n\u003cp data-start=\"511\" data-end=\"936\"\u003eNeodymium magnets are the strongest commercially available permanent magnets, providing significantly greater holding power than ferrite, Alnico, or samarium cobalt magnets of comparable size. The \u003cstrong data-start=\"708\" data-end=\"727\"\u003e6mm centre hole\u003c\/strong\u003e allows the magnet to be securely mounted over bolts, shafts, threaded rods, or tubing, making it an excellent choice for magnetic fixtures, mounting systems, mechanical assemblies, and custom-built equipment.\u003c\/p\u003e\n\u003cp data-start=\"938\" data-end=\"1184\"\u003eThis ring magnet is \u003cstrong data-start=\"958\" data-end=\"980\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the magnetic poles are located on the two flat circular faces. This configuration maximises holding force when the magnet is placed against a ferrous steel surface or paired with another magnet.\u003c\/p\u003e\n\u003cp data-start=\"1186\" data-end=\"1398\"\u003eFinished with a durable \u003cstrong data-start=\"1210\" data-end=\"1253\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e, the magnet offers excellent resistance to corrosion and everyday wear while maintaining a smooth, polished finish for long-lasting performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1400\" data-end=\"1423\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1424\" data-end=\"1932\"\u003e\n\u003cli data-section-id=\"2x4137\" data-start=\"1424\" data-end=\"1480\"\u003ePremium \u003cstrong data-start=\"1434\" data-end=\"1480\"\u003eN38-grade rare earth neodymium ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"73hpoh\" data-start=\"1481\" data-end=\"1530\"\u003eDimensions: \u003cstrong data-start=\"1495\" data-end=\"1530\"\u003e19mm (OD) x 6mm (ID) x 10mm (H)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18plav5\" data-start=\"1531\" data-end=\"1601\"\u003e\n\u003cstrong data-start=\"1533\" data-end=\"1555\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face magnetic performance\u003c\/li\u003e\n\u003cli data-section-id=\"vw418w\" data-start=\"1602\" data-end=\"1683\"\u003ePrecision \u003cstrong data-start=\"1614\" data-end=\"1633\"\u003e6mm centre hole\u003c\/strong\u003e for mounting over bolts, shafts, or threaded rods\u003c\/li\u003e\n\u003cli data-section-id=\"ys5vm4\" data-start=\"1684\" data-end=\"1738\"\u003eExtremely strong magnetic force for its compact size\u003c\/li\u003e\n\u003cli data-section-id=\"6fc21g\" data-start=\"1739\" data-end=\"1792\"\u003eDurable \u003cstrong data-start=\"1749\" data-end=\"1792\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1czhckk\" data-start=\"1793\" data-end=\"1840\"\u003ePrecision-manufactured for consistent quality\u003c\/li\u003e\n\u003cli data-section-id=\"1equpbf\" data-start=\"1841\" data-end=\"1872\"\u003eLong-lasting permanent magnet\u003c\/li\u003e\n\u003cli data-section-id=\"hqhwen\" data-start=\"1873\" data-end=\"1932\"\u003eSuitable for industrial, commercial, and DIY applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1934\" data-end=\"1957\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1958\" data-end=\"2198\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1958\" data-end=\"1985\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"qp7sm2\" data-start=\"1986\" data-end=\"2017\"\u003eEngineering and manufacturing\u003c\/li\u003e\n\u003cli data-section-id=\"1379ml4\" data-start=\"2018\" data-end=\"2050\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-section-id=\"1p0pfaz\" data-start=\"2051\" data-end=\"2074\"\u003eMechanical assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"1o8izvh\" data-start=\"2075\" data-end=\"2097\"\u003eAutomation equipment\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"2098\" data-end=\"2126\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"1t3t4w9\" data-start=\"2127\" data-end=\"2164\"\u003eScientific and laboratory equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1vun7p8\" data-start=\"2165\" data-end=\"2198\"\u003eDIY fabrication and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2200\" data-end=\"2213\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2214\" data-end=\"2382\"\u003e\n\u003cli data-section-id=\"7d099e\" data-start=\"2214\" data-end=\"2225\"\u003eEngineers\u003c\/li\u003e\n\u003cli data-section-id=\"ctq1ak\" data-start=\"2226\" data-end=\"2241\"\u003eManufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2242\" data-end=\"2261\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"1vuc9te\" data-start=\"2262\" data-end=\"2286\"\u003eIndustrial maintenance\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2287\" data-end=\"2311\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"12qmxv9\" data-start=\"2312\" data-end=\"2335\"\u003ePrototype development\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2336\" data-end=\"2359\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"1h62ywz\" data-start=\"2360\" data-end=\"2382\"\u003eHobbyists and makers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wfcj9n\" data-start=\"2384\" data-end=\"2428\"\u003eWhy Choose an N38 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2430\" data-end=\"2789\"\u003eN38-grade neodymium ring magnets provide an excellent combination of magnetic strength, durability, and versatility. Their centre hole allows for easy integration into mechanical assemblies, rotating systems, magnetic couplings, and mounting applications, while the compact ring design delivers powerful magnetic performance in space-constrained environments.\u003c\/p\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"2791\" data-end=\"2806\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"2808\" data-end=\"3433\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely powerful and should be handled carefully to avoid pinch injuries or damage caused by magnets snapping together. Holding performance is achieved under ideal conditions using a clean, flat, thick steel surface with direct contact. Actual magnetic strength will vary depending on the application, air gap, mounting arrangement, and the material being attracted. Keep away from children, pacemakers, sensitive electronic devices, and magnetic storage media. Avoid drilling, machining, excessive heat, or heavy impacts, as these may permanently damage the magnet or reduce its magnetic performance.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296080052356,"sku":"23006","price":14.01,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23006_1.jpg?v=1752623927"},{"product_id":"neodymium-ring-magnet-od19-x-h4-x-id8-mm-n38","title":"Neodymium Ring Magnet OD19mm x H4mm | Hole 8mm N38","description":"\u003ch2 data-section-id=\"1a11x8i\" data-start=\"0\" data-end=\"54\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet OD19mm x H4mm | Hole 8mm N38\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"56\" data-end=\"521\"\u003eCompact, lightweight, and exceptionally powerful, this \u003cstrong data-start=\"111\" data-end=\"136\"\u003eNeodymium Ring Magnet\u003c\/strong\u003e features a \u003cstrong data-start=\"148\" data-end=\"224\"\u003e19mm outside diameter (OD), 8mm inside diameter (ID), and 4mm height (H)\u003c\/strong\u003e. Manufactured from premium \u003cstrong data-start=\"252\" data-end=\"294\"\u003eN38-grade NdFeB (Neodymium Iron Boron)\u003c\/strong\u003e rare earth magnetic material, this permanent magnet delivers impressive magnetic strength in a low-profile ring design, making it ideal for engineering, electronics, product development, automation, and precision DIY projects.\u003c\/p\u003e\n\u003cp data-start=\"523\" data-end=\"935\"\u003eNeodymium magnets are the strongest commercially available permanent magnets, providing significantly greater holding force than ferrite, Alnico, or samarium cobalt magnets of similar size. The \u003cstrong data-start=\"717\" data-end=\"736\"\u003e8mm centre hole\u003c\/strong\u003e allows the magnet to be mounted over bolts, shafts, threaded rods, or tubing, making it ideal for magnetic fixtures, sensors, mounting systems, rotating components, and custom mechanical assemblies.\u003c\/p\u003e\n\u003cp data-start=\"937\" data-end=\"1184\"\u003eThis ring magnet is \u003cstrong data-start=\"957\" data-end=\"979\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the magnetic poles are located on the two flat circular faces. This orientation maximises face-to-face holding performance when used against a ferrous steel surface or paired with another magnet.\u003c\/p\u003e\n\u003cp data-start=\"1186\" data-end=\"1379\"\u003eThe magnet is finished with a durable \u003cstrong data-start=\"1224\" data-end=\"1267\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e, providing excellent resistance to corrosion and everyday wear while maintaining a smooth, polished appearance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1381\" data-end=\"1404\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1405\" data-end=\"1909\"\u003e\n\u003cli data-section-id=\"2x4137\" data-start=\"1405\" data-end=\"1461\"\u003ePremium \u003cstrong data-start=\"1415\" data-end=\"1461\"\u003eN38-grade rare earth neodymium ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"kea4my\" data-start=\"1462\" data-end=\"1510\"\u003eDimensions: \u003cstrong data-start=\"1476\" data-end=\"1510\"\u003e19mm (OD) x 8mm (ID) x 4mm (H)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18plav5\" data-start=\"1511\" data-end=\"1581\"\u003e\n\u003cstrong data-start=\"1513\" data-end=\"1535\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face magnetic performance\u003c\/li\u003e\n\u003cli data-section-id=\"143vrz2\" data-start=\"1582\" data-end=\"1663\"\u003ePrecision \u003cstrong data-start=\"1594\" data-end=\"1613\"\u003e8mm centre hole\u003c\/strong\u003e for mounting over bolts, shafts, or threaded rods\u003c\/li\u003e\n\u003cli data-section-id=\"f5jk74\" data-start=\"1664\" data-end=\"1715\"\u003eLow-profile design with exceptional holding power\u003c\/li\u003e\n\u003cli data-section-id=\"6fc21g\" data-start=\"1716\" data-end=\"1769\"\u003eDurable \u003cstrong data-start=\"1726\" data-end=\"1769\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1czhckk\" data-start=\"1770\" data-end=\"1817\"\u003ePrecision-manufactured for consistent quality\u003c\/li\u003e\n\u003cli data-section-id=\"1equpbf\" data-start=\"1818\" data-end=\"1849\"\u003eLong-lasting permanent magnet\u003c\/li\u003e\n\u003cli data-section-id=\"hqhwen\" data-start=\"1850\" data-end=\"1909\"\u003eSuitable for industrial, commercial, and DIY applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1911\" data-end=\"1934\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1935\" data-end=\"2166\"\u003e\n\u003cli data-section-id=\"1f6yckt\" data-start=\"1935\" data-end=\"1962\"\u003eMagnetic mounting systems\u003c\/li\u003e\n\u003cli data-section-id=\"qp7sm2\" data-start=\"1963\" data-end=\"1994\"\u003eEngineering and manufacturing\u003c\/li\u003e\n\u003cli data-section-id=\"1379ml4\" data-start=\"1995\" data-end=\"2027\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-section-id=\"1qbivta\" data-start=\"2028\" data-end=\"2057\"\u003eSensors and instrumentation\u003c\/li\u003e\n\u003cli data-section-id=\"1o8izvh\" data-start=\"2058\" data-end=\"2080\"\u003eAutomation equipment\u003c\/li\u003e\n\u003cli data-section-id=\"pkrgsj\" data-start=\"2081\" data-end=\"2109\"\u003eWorkshop jigs and fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"r3djtt\" data-start=\"2110\" data-end=\"2132\"\u003eScientific equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1vun7p8\" data-start=\"2133\" data-end=\"2166\"\u003eDIY fabrication and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2168\" data-end=\"2181\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2182\" data-end=\"2351\"\u003e\n\u003cli data-section-id=\"7d099e\" data-start=\"2182\" data-end=\"2193\"\u003eEngineers\u003c\/li\u003e\n\u003cli data-section-id=\"ctq1ak\" data-start=\"2194\" data-end=\"2209\"\u003eManufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2210\" data-end=\"2229\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"1vuc9te\" data-start=\"2230\" data-end=\"2254\"\u003eIndustrial maintenance\u003c\/li\u003e\n\u003cli data-section-id=\"11efqoi\" data-start=\"2255\" data-end=\"2280\"\u003eElectronics technicians\u003c\/li\u003e\n\u003cli data-section-id=\"12qmxv9\" data-start=\"2281\" data-end=\"2304\"\u003ePrototype development\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2305\" data-end=\"2328\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"1h62ywz\" data-start=\"2329\" data-end=\"2351\"\u003eHobbyists and makers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wfcj9n\" data-start=\"2353\" data-end=\"2397\"\u003eWhy Choose an N38 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2399\" data-end=\"2806\"\u003eN38-grade neodymium ring magnets offer an excellent balance of magnetic strength, durability, and value. Their low-profile design makes them ideal for compact assemblies where installation space is limited, while the centre hole allows easy mounting onto shafts, bolts, or threaded fasteners. They are widely used in automation, magnetic couplings, mounting systems, sensors, and custom-engineered products.\u003c\/p\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"2808\" data-end=\"2823\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"2825\" data-end=\"3465\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eNeodymium magnets are extremely powerful for their size and should be handled carefully to avoid pinch injuries or damage caused by magnets snapping together. Holding performance is achieved under ideal conditions using a clean, flat, thick steel surface with direct contact. Actual magnetic strength will vary depending on the application, air gap, mounting arrangement, and the material being attracted. Keep away from children, pacemakers, sensitive electronic devices, and magnetic storage media. Avoid drilling, machining, excessive heat, or heavy impacts, as these may permanently damage the magnet or reduce its magnetic performance.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296080117892,"sku":"23008","price":7.77,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23008_1.jpg?v=1752623926"},{"product_id":"neodymium-ring-magnet-od6-x-h3-x-id3-mm-n52","title":"Neodymium Ring Magnet OD6mm x H3mm | Hole 3mm N52","description":"\u003cp\u003eRing-shaped magnet made with premium N52 Grade Neodymium. The small round magnet has a diameter of 6mm and height of 3mm. The central hole is also 3mm in diameter.\u003cbr\u003e \u003cbr\u003eNeodymium magnets of all kinds provide the highest level of magnetic attachment available. This is due to the intensely powerful rare-earth material contained beneath the nickel-coated surface. The N52 Grade rare-earth material found inside this Ring Magnet is the strongest grade available in the Frenergy stock range of magnets. Neodymium materials that are manufactured into a Ring-shaped magnet have distinct advantages over other magnetic shapes and this makes them one of the most commonly purchased magnetic products in the entire Frenergy range. \u003cbr\u003eThe central void of the Ring is often used as a simple and convenient way of attaching the magnet to non-ferrous surfaces that other magnets would not bond with. Wire or plastic cable can be used to attach the magnet to practically any surface, instantly transforming them into magnetically compatible material. A Neodymium Ring magnet attached with wire to a wooden gate for instance, allows the gate to bind with a Colourbond fence. It can then be held in the open position as needed. Neodymium Ring magnets are also ideal for use in industrial applications where the void helps to locate the ring in the correct position on plastic lugs or shafts which are typically made from non-ferrous materials like fibreglass, plastic or carbon fibre. Neodymium Ring magnets that can provide excellent holding power from small, compact magnet sizes have increasingly become an important component in modern consumer products where they create higher levels of capacity and efficiency. \u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296082673796,"sku":"R-OD6ID3H3-N52","price":1.09,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23004.jpg?v=1752623893"},{"product_id":"smco-countersunk-ring-magnet-20mm-dia-x-10mm-x-c-sunk-d5-2-yxg28-n","title":"SmCo Countersunk Ring Magnet 20mm x 10mm | C\/sunk hole d5.2 | North on C\/Sunk","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eSmCo Countersunk Ring Magnet – 20mm x 10mm | 5.2mm Countersunk Hole | North Pole on Countersunk Face\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets SmCo Countersunk Ring Magnet – 20mm x 10mm | 5.2mm Hole | North on Countersunk Face\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a specialised permanent magnet designed for applications requiring high-temperature magnetic performance, mechanical mounting and a defined magnetic polarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured using \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSamarium Cobalt (SmCo)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this Rare Earth magnet offers excellent resistance to demagnetisation and is particularly useful in demanding industrial and engineering environments where conventional Neodymium magnets may not be suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm outside diameter, 10mm thickness and a 5.2mm nominal countersunk hole diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this magnetic ring is designed to accommodate a compatible countersunk fastening arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe countersunk design allows a suitable screw head to sit recessed within the magnet's surface, helping create a compact and secure installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAn important feature of this magnet is its \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edefined magnetic polarity, with the North pole located on the countersunk face\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis polarity orientation is particularly relevant for applications involving magnetic assemblies, sensors, positioning systems and equipment where the direction of the magnetic field must be controlled.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional magnets with unspecified polarity, the identified North-facing countersunk surface allows engineers and manufacturers to incorporate the magnet into assemblies requiring a particular magnetic orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSamarium Cobalt is a high-performance Rare Earth magnetic material known for its excellent temperature stability, corrosion resistance and long-term magnetic properties.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSmCo magnets are frequently used in industrial equipment, aerospace-related engineering, automotive systems, precision instruments, electric motors, magnetic sensors and specialised high-temperature assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm diameter and 10mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provide a compact yet substantial magnetic component suitable for applications where a threaded or countersunk mounting arrangement is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central countersunk hole allows the magnet to be positioned and retained using compatible mechanical fasteners, reducing reliance on adhesives alone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSmCo magnets are inherently hard and brittle, so mounting hardware must be selected carefully and tightened without applying excessive stress to the magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe countersunk face should be positioned according to the required magnetic polarity, particularly where the magnet interacts with another magnet or a magnetic sensing system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSamarium Cobalt countersunk magnet, SmCo countersunk ring magnet, high-temperature Rare Earth ring magnet, North-facing countersunk magnet or mechanically mounted SmCo magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is suitable for specialised magnetic applications requiring durability and precise magnetic orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing an industrial magnetic assembly, manufacturing precision equipment, installing a high-temperature magnetic component or designing a polarity-sensitive magnetic system, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets SmCo Countersunk Ring Magnet – 20mm x 10mm | 5.2mm Hole | North on Countersunk Face\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a versatile magnetic solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSamarium Cobalt (SmCo):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-performance Rare Earth permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e20mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact circular magnet suitable for specialised assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e10mm Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Substantial magnetic body for its diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e5.2mm Countersunk Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Nominal hole dimension for a compatible fastening arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNorth Pole on Countersunk Face:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Defined magnetic polarity for directional magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCountersunk Mounting Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows use with a suitably matched countersunk fastener.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Temperature Magnetic Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e SmCo is recognised for excellent temperature stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExcellent Resistance to Demagnetisation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for demanding magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGood Corrosion Resistance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e SmCo generally offers greater inherent corrosion resistance than uncoated NdFeB.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Mounting Capability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Central hole enables fastening to compatible assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrecision Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for magnetic positioning, sensors and engineered equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIndustrial Versatility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to machinery, instruments and specialised magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDefined Polarity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Helps support correct orientation during installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSamarium Cobalt magnets are useful in assemblies exposed to elevated temperatures where magnetic stability is important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIndustrial Equipment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate the magnet into specialised machinery and mechanical systems requiring a compact magnetic component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Positioning Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse the defined North-facing countersunk surface in appropriately designed magnetic positioning assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Sensors\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate the magnet into compatible sensing systems where magnetic polarity and field orientation are important.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for engineered assemblies requiring controlled magnet placement and mechanical fastening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAutomotive Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSmCo magnets may be used in specialised automotive components exposed to demanding operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAerospace-Related Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSamarium Cobalt magnetic materials are used in certain aerospace and high-reliability engineering systems, subject to application-specific qualification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectric Motors and Actuators\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially suitable for specialised magnetic assemblies where the dimensions, magnetic field and polarity meet design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature Fixtures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into suitable magnetic fixtures where conventional magnet materials may not provide adequate temperature performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse the countersunk mounting arrangement and defined polarity to create specialised magnetic fastening or positioning systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose a Samarium Cobalt Countersunk Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eExcellent Temperature Stability\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSamarium Cobalt is known for maintaining magnetic properties at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDefined Magnetic Polarity\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe North pole is located on the countersunk face, allowing consistent orientation in suitable assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eConvenient Mechanical Mounting\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe countersunk hole provides a fastening option using compatible hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Resistance to Demagnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSmCo offers strong resistance to demagnetising influences under appropriate operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eGood Corrosion Resistance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSamarium Cobalt generally has good inherent corrosion resistance and may not require the same protective coatings commonly used with Neodymium magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable for Specialised Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for industrial, high-temperature and polarity-sensitive magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSmCo Countersunk Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSamarium Cobalt (SmCo)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Category\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCountersunk Ring\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThickness \/ Height\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Hole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5.2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCountersink\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNorth Pole Location\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCountersunk Face\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOpposite Pole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSouth Pole on Opposite Face, assuming conventional axial magnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Orientation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFace-to-Face Polarity Indicated; Confirm Full Magnetisation Specification\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSmCo Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCountersink Major Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCountersink Angle\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating \/ Finish\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Method\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Countersunk Fastener\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable Screw Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMust Be Verified Against Full Hole Geometry\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIndustrial Equipment, High-Temperature Assemblies and Magnetic Positioning Systems\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOutside Diameter – 20mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has a nominal outside diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis measurement describes the full width of the circular magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eThickness – 10mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm in thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is the distance between the two main circular faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCountersunk Hole – 5.2mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features a countersunk hole with a stated nominal diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5.2mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe countersink's major diameter, angle and full geometry have not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe appropriate screw size must therefore be confirmed before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eNorth Pole on Countersunk Face\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe North magnetic pole is located on the countersunk face.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis orientation is important when installing the magnet in polarity-sensitive systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eNominal Outer Face Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe full circular area corresponding to the 20mm outside diameter is approximately:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e314.16mm² (3.14cm²)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is the geometric outer face area before accounting for the hole and countersink.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Radial Wall Width\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIf the 5.2mm measurement represents the diameter of the central through-hole, the nominal radial wall width is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e7.4mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual material profile varies around the countersunk opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is a Samarium Cobalt Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSamarium Cobalt magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, commonly abbreviated as SmCo, is a type of Rare Earth permanent magnet manufactured using alloys containing samarium and cobalt.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSmCo magnets are valued for their magnetic stability, resistance to demagnetisation and ability to operate in demanding environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompared with standard Neodymium magnets, Samarium Cobalt magnets generally offer better high-temperature stability and greater inherent corrosion resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey are commonly used in specialised industrial, aerospace, automotive, instrumentation and precision engineering applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSmCo magnets are also hard and brittle, requiring careful handling and appropriate mounting methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is a Countersunk Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA countersunk ring magnet is a circular magnet featuring a central hole with a recessed opening designed to accommodate a compatible countersunk fastener.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe countersunk arrangement allows the fastener head to sit within the recess rather than projecting substantially above the magnet's surface, provided the screw geometry is compatible.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk magnets are useful in assemblies where mechanical retention is preferred or where adhesive bonding alone is unsuitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBecause Rare Earth magnets are brittle, installation must avoid excessive mechanical pressure and impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding North Polarity on the Countersunk Face\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis magnet is specified with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNorth pole on the countersunk face\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic polarity determines how a magnet interacts with other magnets and magnetic sensing components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOpposite magnetic poles attract, while like poles repel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor example:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNorth and South poles attract.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNorth and North poles repel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSouth and South poles repel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eWhen installing this magnet into a magnetic assembly, the orientation of the countersunk face should be considered carefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specified polarity is particularly important when using matching magnets, magnetic sensors or directional magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The supplied information identifies the North pole on the countersunk face. The complete magnetisation specification should be confirmed for applications requiring detailed magnetic field characteristics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of SmCo Compared with Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSamarium Cobalt (SmCo)\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eNeodymium (NdFeB)\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Category\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Temperature Stability\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenerally Excellent\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends Strongly on Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCorrosion Resistance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenerally Good\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOften Requires Protective Coating\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Strength\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTypically Higher for Comparable Size\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eResistance to Demagnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenerally High\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Grade and Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial Brittleness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBrittle\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBrittle\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Temperature and Specialised Engineering\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGeneral Industrial and High-Strength Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCost\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenerally Higher\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOften More Economical\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Mounting\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRequires Care\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRequires Care\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eThe appropriate magnetic material depends on operating temperature, magnetic performance, environmental conditions and engineering requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install a SmCo Countersunk Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check the 20mm diameter, 10mm thickness and countersunk hole geometry against the intended assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIdentify the Magnetic Polarity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm that the countersunk face is the North pole.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect a Compatible Fastener:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Choose a countersunk screw with a suitable head diameter, angle and thread size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Mounting Surface:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the receiving surface is clean, flat and properly aligned.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Place the magnet in the required orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInsert the Fastener Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid striking or forcing the screw into the countersunk opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTighten Gently:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not overtighten, as SmCo magnets are brittle and may crack.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Alignment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnet is correctly positioned.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Magnetic Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Test the magnetic interaction under actual operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, movement or mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The countersink geometry has not been fully specified. Fastener compatibility must be verified before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDifferent SmCo grades provide different magnetic properties.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSmCo generally offers excellent temperature stability, but the maximum operating temperature depends on the specific grade and assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEven small gaps can reduce magnetic attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel composition and thickness influence magnetic holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Orientation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCorrect polarity is essential in directional magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Stress\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExcessive fastening pressure can damage brittle magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSurface Contact\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFlat and properly aligned contact surfaces generally improve magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEnvironmental Conditions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTemperature changes, vibration and corrosive exposure should be considered during design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle the magnet carefully to prevent chipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid dropping or striking the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not overtighten mounting screws.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep magnetic contact surfaces clean.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid drilling, cutting or machining the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for cracks or chips before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from incompatible chemicals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify temperature limits before high-temperature use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore magnets with appropriate separation to prevent sudden impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCheck mounting hardware periodically.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConfirm polarity before installation into directional magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Magnetic Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Samarium Cobalt magnets are hard and brittle and may crack under mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Strong magnetic attraction can cause sudden movement towards steel objects or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSwallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Small powerful magnets can cause serious internal injuries if swallowed. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers and magnetically sensitive medical equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Mounting:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Countersunk fasteners must be compatible and should not be overtightened.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Temperature Use:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e SmCo is a high-temperature magnetic material, but the specific maximum operating temperature has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent engineering assessment and testing are required before use in safety-critical systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat material is this magnet made from?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is made from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSamarium Cobalt (SmCo)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a Rare Earth permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat are the magnet dimensions?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm in outside diameter and 10mm in thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat size is the countersunk hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe specified nominal hole diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5.2mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhich face is the North pole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecountersunk face is the North pole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this an axially magnetised magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe specified North pole on the countersunk face indicates face-oriented polarity, but the complete magnetisation specification should be confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs Samarium Cobalt suitable for high temperatures?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. SmCo is recognised for excellent high-temperature magnetic stability, although the product's specific operating limit has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat SmCo grade is used?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic grade has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet stronger than Neodymium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium generally offers higher magnetic energy density, while SmCo is often preferred for temperature stability and corrosion resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use a screw to mount this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided the screw is compatible with the complete countersunk hole geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes a 5.2mm hole mean it fits an M5 screw?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA 5.2mm hole may accommodate certain M5 fasteners, but countersink geometry and installation requirements must be verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I overtighten the mounting screw?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Excessive tightening can crack the brittle SmCo magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes the magnet require adhesive?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNot necessarily. The countersunk design provides a mechanical mounting option.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet corrosion resistant?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSmCo generally offers good inherent corrosion resistance, although suitability for specific environments must be verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes it have a protective coating?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe coating or finish has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA pull-force rating has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the Gauss rating?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe surface Gauss rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet in industrial equipment?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided the magnetic, mechanical and environmental requirements are met.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it suitable for magnetic sensors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt may be suitable for compatible sensor applications requiring defined magnetic polarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it in an electric motor?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, subject to the motor's magnetic design and engineering requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet brittle?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Samarium Cobalt magnets are brittle and should be handled carefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Drilling or machining finished SmCo magnets can cause damage and create hazardous dust.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it outdoors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been specifically confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. SmCo magnets attract suitable ferromagnetic steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract aluminium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Aluminium is not ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use two of these magnets together?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided their polarity and mechanical arrangement are compatible.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy is the North pole location important?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt allows the magnet to be installed in the correct orientation for polarity-sensitive magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this suitable for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly after appropriate engineering verification, testing and compliance assessment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSamarium Cobalt Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSmCo Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSmCo Countersunk Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Temperature Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Countersunk Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Temperature Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Permanent Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Sensor Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets SmCo Countersunk Ring Magnet – 20mm x 10mm | 5.2mm Hole | North on Countersunk Face\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed for specialised magnetic applications requiring mechanical mounting and defined polarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm outside diameter, 10mm thickness and nominal 5.2mm countersunk hole diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNorth magnetic pole is located on the countersunk face\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecific SmCo grade, countersink major diameter, countersink angle, pull force, surface Gauss, coating and maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on magnetic grade, installation, operating temperature, receiving materials, air gaps and environmental conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Samarium Cobalt magnets are brittle and must be handled with care. Do not overtighten countersunk fasteners or use the magnet in safety-critical applications without appropriate independent testing.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39307249287300,"sku":"SmCo-R001","price":17.89,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/smco-r001.jpg?v=1752623826"},{"product_id":"neodymium-ring-magnet-od8-x-h3-x-id6-1-mm-n50h-black-epoxy","title":"Neodymium Ring Magnet OD8mm x H3mm | Hole 6.1mm | N50H | High Temperature ≤120ºC | Epoxy Coated","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-67\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-67\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-67\" data-testid=\"conversation-turn-454\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"ff5bcb37-466f-43b5-92b1-0f30922241c6\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"dmskmb\" data-start=\"0\" data-end=\"96\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet – OD8mm x H3mm | ID6.1mm | N50H | High Temperature 120°C | Epoxy Coated\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"98\" data-end=\"657\"\u003eDesigned for demanding environments where both \u003cstrong data-start=\"145\" data-end=\"171\"\u003ehigh magnetic strength\u003c\/strong\u003e and \u003cstrong data-start=\"176\" data-end=\"211\"\u003eelevated temperature resistance\u003c\/strong\u003e are required, this \u003cstrong data-start=\"231\" data-end=\"256\"\u003eNeodymium Ring Magnet\u003c\/strong\u003e features an \u003cstrong data-start=\"269\" data-end=\"346\"\u003e8mm outside diameter (OD), 6.1mm inside diameter (ID), and 3mm height (H)\u003c\/strong\u003e. Manufactured from premium \u003cstrong data-start=\"374\" data-end=\"417\"\u003eN50H-grade NdFeB (Neodymium Iron Boron)\u003c\/strong\u003e rare earth magnetic material, this compact ring magnet combines exceptional magnetic performance with a \u003cstrong data-start=\"522\" data-end=\"570\"\u003emaximum operating temperature of up to 120°C\u003c\/strong\u003e, making it ideal for industrial, automotive, electronic, and engineering applications.\u003c\/p\u003e\n\u003cp data-start=\"659\" data-end=\"898\"\u003eThe \u003cstrong data-start=\"663\" data-end=\"690\"\u003elarge 6.1mm centre hole\u003c\/strong\u003e allows the magnet to be mounted over screws, bolts, shafts, or tubes, making it suitable for precision assemblies, sensors, actuators, magnetic couplings, and compact mounting systems where space is limited.\u003c\/p\u003e\n\u003cp data-start=\"900\" data-end=\"1188\"\u003eUnlike standard neodymium magnets, the \u003cstrong data-start=\"939\" data-end=\"970\"\u003eN50H high-temperature grade\u003c\/strong\u003e is specifically designed to retain its magnetic performance in elevated operating temperatures of up to \u003cstrong data-start=\"1075\" data-end=\"1084\"\u003e120°C\u003c\/strong\u003e, making it an excellent choice for environments where conventional neodymium magnets may lose strength.\u003c\/p\u003e\n\u003cp data-start=\"1190\" data-end=\"1508\"\u003eThe magnet is finished with a durable \u003cstrong data-start=\"1228\" data-end=\"1251\"\u003eblack epoxy coating\u003c\/strong\u003e, providing enhanced protection against corrosion, moisture, chemicals, and abrasion. This coating offers greater environmental resistance than traditional nickel-plated magnets, making it well suited to harsh industrial conditions and outdoor applications.\u003c\/p\u003e\n\u003cp data-start=\"1510\" data-end=\"1729\"\u003eThis ring magnet is \u003cstrong data-start=\"1530\" data-end=\"1552\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the magnetic poles are located on the two flat circular faces, providing maximum holding force when used against a ferrous steel surface or paired with another magnet.\u003c\/p\u003e\n\u003ch3 data-section-id=\"565xk3\" data-start=\"1731\" data-end=\"1754\"\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1755\" data-end=\"2269\"\u003e\n\u003cli data-section-id=\"vwdmx1\" data-start=\"1755\" data-end=\"1812\"\u003ePremium \u003cstrong data-start=\"1765\" data-end=\"1812\"\u003eN50H-grade rare earth neodymium ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"y3lo\" data-start=\"1813\" data-end=\"1862\"\u003eDimensions: \u003cstrong data-start=\"1827\" data-end=\"1862\"\u003e8mm (OD) x 6.1mm (ID) x 3mm (H)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ltwsx8\" data-start=\"1863\" data-end=\"1935\"\u003e\n\u003cstrong data-start=\"1865\" data-end=\"1891\"\u003eHigh-temperature grade\u003c\/strong\u003e with operating temperatures up to \u003cstrong data-start=\"1926\" data-end=\"1935\"\u003e120°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"pncxch\" data-start=\"1936\" data-end=\"2003\"\u003eDurable \u003cstrong data-start=\"1946\" data-end=\"1969\"\u003eblack epoxy coating\u003c\/strong\u003e for superior corrosion resistance\u003c\/li\u003e\n\u003cli data-section-id=\"18plav5\" data-start=\"2004\" data-end=\"2074\"\u003e\n\u003cstrong data-start=\"2006\" data-end=\"2028\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face magnetic performance\u003c\/li\u003e\n\u003cli data-section-id=\"1x8tkjh\" data-start=\"2075\" data-end=\"2136\"\u003eLarge centre hole for mounting over bolts, shafts, or tubes\u003c\/li\u003e\n\u003cli data-section-id=\"1hxh7y6\" data-start=\"2137\" data-end=\"2189\"\u003eExceptional magnetic strength for its compact size\u003c\/li\u003e\n\u003cli data-section-id=\"1czhckk\" data-start=\"2190\" data-end=\"2237\"\u003ePrecision-manufactured for consistent quality\u003c\/li\u003e\n\u003cli data-section-id=\"1equpbf\" data-start=\"2238\" data-end=\"2269\"\u003eLong-lasting permanent magnet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"2271\" data-end=\"2294\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"2295\" data-end=\"2533\"\u003e\n\u003cli data-section-id=\"x7i70d\" data-start=\"2295\" data-end=\"2335\"\u003eHigh-temperature electronic assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"444ift\" data-start=\"2336\" data-end=\"2371\"\u003eAutomotive sensors and components\u003c\/li\u003e\n\u003cli data-section-id=\"1djpfsw\" data-start=\"2372\" data-end=\"2403\"\u003eElectric motors and actuators\u003c\/li\u003e\n\u003cli data-section-id=\"cm6n5z\" data-start=\"2404\" data-end=\"2427\"\u003ePrecision engineering\u003c\/li\u003e\n\u003cli data-section-id=\"1sa1yao\" data-start=\"2428\" data-end=\"2448\"\u003eMagnetic couplings\u003c\/li\u003e\n\u003cli data-section-id=\"rb6wls\" data-start=\"2449\" data-end=\"2472\"\u003eIndustrial automation\u003c\/li\u003e\n\u003cli data-section-id=\"8bko0d\" data-start=\"2473\" data-end=\"2497\"\u003eScientific instruments\u003c\/li\u003e\n\u003cli data-section-id=\"14v5nfu\" data-start=\"2498\" data-end=\"2533\"\u003eCompact magnetic mounting systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2535\" data-end=\"2548\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2549\" data-end=\"2748\"\u003e\n\u003cli data-section-id=\"8wpcmh\" data-start=\"2549\" data-end=\"2571\"\u003eMechanical engineers\u003c\/li\u003e\n\u003cli data-section-id=\"y3n9y5\" data-start=\"2572\" data-end=\"2599\"\u003eElectronics manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"10h21dt\" data-start=\"2600\" data-end=\"2622\"\u003eAutomotive engineers\u003c\/li\u003e\n\u003cli data-section-id=\"scifcp\" data-start=\"2623\" data-end=\"2645\"\u003eIndustrial designers\u003c\/li\u003e\n\u003cli data-section-id=\"hqt4e9\" data-start=\"2646\" data-end=\"2675\"\u003eOEM equipment manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2676\" data-end=\"2699\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2700\" data-end=\"2724\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"12qmxv9\" data-start=\"2725\" data-end=\"2748\"\u003ePrototype development\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"18yxrgu\" data-start=\"2750\" data-end=\"2808\"\u003eWhy Choose an N50H Epoxy Coated Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2810\" data-end=\"3258\"\u003eThe \u003cstrong data-start=\"2814\" data-end=\"2828\"\u003eN50H grade\u003c\/strong\u003e delivers outstanding magnetic strength while maintaining performance at operating temperatures of up to \u003cstrong data-start=\"2933\" data-end=\"2942\"\u003e120°C\u003c\/strong\u003e, making it ideal for demanding environments where standard neodymium magnets may begin to lose magnetic force. The \u003cstrong data-start=\"3058\" data-end=\"3081\"\u003eblack epoxy coating\u003c\/strong\u003e provides superior protection against corrosion, humidity, chemicals, and abrasion, making it particularly suitable for outdoor, marine, automotive, and industrial applications.\u003c\/p\u003e\n\u003cp data-start=\"3260\" data-end=\"3492\"\u003eIts compact dimensions and large centre hole make this magnet an excellent solution for precision mechanical assemblies, rotating components, magnetic fixtures, and space-constrained designs requiring reliable long-term performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"3494\" data-end=\"3509\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"3511\" data-end=\"3788\"\u003eThis is a \u003cstrong data-start=\"3521\" data-end=\"3556\"\u003ehigh-strength rare earth magnet\u003c\/strong\u003e and should be handled carefully to avoid pinch injuries or damage caused by magnets snapping together. Although rated for continuous operation up to \u003cstrong data-start=\"3706\" data-end=\"3715\"\u003e120°C\u003c\/strong\u003e, exceeding this temperature may permanently reduce magnetic performance.\u003c\/p\u003e\n\u003cp data-start=\"3790\" data-end=\"4043\"\u003eHolding strength is achieved under ideal conditions using a clean, flat, thick ferrous steel surface with direct face-to-face contact. Actual magnetic performance will vary depending on the application, air gap, surface finish, and mounting arrangement.\u003c\/p\u003e\n\u003cp data-start=\"4045\" data-end=\"4313\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eKeep away from children, pacemakers, implanted medical devices, sensitive electronic equipment, and magnetic storage media. Avoid drilling, machining, or subjecting the magnet to heavy impacts, as this may damage the epoxy coating or cause the magnet to chip or crack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39307470700676,"sku":"R-OD8H3ID6.1-N50HEP","price":2.24,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/R-OD8H3ID6.1-N50HEP.jpg?v=1781863260"},{"product_id":"neodymium-ring-magnet-od10-x-h3-x-id4-mm-n42","title":"Neodymium Ring Magnet OD10mm x H3mm | Hole 4mm N42","description":"\u003cp data-mce-fragment=\"1\"\u003eThis Rare Earth Neodymium Ring Magnet is 10mm in outer diameter and has an inside diameter of 4mm with a 3mm thickness. This Nickel plated ring magnet has an N42 grade and a pull force of 1.39kgs.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRing magnets are an extremely popular shape for sign makers, or anyone wanting to use a hidden fixing method that is able to be regularly attached and detached. Sign makers have been using these magnets for years in the design of clever rotating or transitioning billboards and outdoor advertising signs.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eCurtain and blind makers, along with professional interior designers find ring magnets an indispensable tool for fastening and holding fabric or soft furnishings. Magnets transfer their holding power through materials, without breaching the material itself. Able to be stitched in without damaging the textile or the magnet they are the perfect solution to keeping drapes or fabric neatly in place. These ring magnets are in constant demand, in school projects, arts and crafts and display advertising.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eNeodymium or Rare Earth magnets are the strongest permanent magnets commercially available and are the ideal magnet if you require the highest magnetic strength possible. They are up to seven times stronger than more traditional magnets such as Ferrite and Alnico magnets and come in an extensive range of sizes, shapes and grades. Rare Earth magnets are magnetically stable and have a strong resistance to demagnetization however they are not suitable for use in high temperature applications.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39307481251972,"sku":"R-OD10H3ID4","price":4.31,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/r-od10h3id4_1.jpg?v=1752623823"},{"product_id":"neodymium-ring-magnet-od14-x-h3-x-id9-mm-n38","title":"Neodymium Ring Magnet OD14mm x H3mm | Hole 9mm N38","description":"\u003ch2 data-section-id=\"1p6lxs1\" data-start=\"0\" data-end=\"53\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet – OD14mm x 3mm | ID9mm | N38\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"55\" data-end=\"539\"\u003eThe \u003cstrong data-start=\"59\" data-end=\"113\"\u003eNeodymium Ring Magnet – OD14mm x 3mm | ID9mm | N38\u003c\/strong\u003e is a compact, high-performance \u003cstrong data-start=\"145\" data-end=\"171\"\u003erare earth ring magnet\u003c\/strong\u003e designed for precision applications where space is limited but reliable magnetic strength is essential. Manufactured from premium \u003cstrong data-start=\"302\" data-end=\"333\"\u003eN38 grade neodymium (NdFeB)\u003c\/strong\u003e, this permanent magnet features a \u003cstrong data-start=\"368\" data-end=\"391\"\u003e14mm outer diameter\u003c\/strong\u003e, \u003cstrong data-start=\"393\" data-end=\"415\"\u003e9mm inner diameter\u003c\/strong\u003e, and \u003cstrong data-start=\"421\" data-end=\"438\"\u003e3mm thickness\u003c\/strong\u003e, making it ideal for mounting over shafts, bolts, tubes, bearings, and other cylindrical components.\u003c\/p\u003e\n\u003cp data-start=\"541\" data-end=\"959\"\u003eIts slim ring profile and generous centre hole make it particularly well suited to engineering, electronics, automation, sensors, magnetic couplings, product assembly, and custom manufacturing projects. Despite its compact size, the N38 neodymium material delivers significantly greater magnetic performance than ferrite magnets of similar dimensions, allowing for smaller, lighter, and more efficient product designs.\u003c\/p\u003e\n\u003cp data-start=\"961\" data-end=\"1275\"\u003eThe magnet is \u003cstrong data-start=\"975\" data-end=\"1023\"\u003eaxially magnetised through its 3mm thickness\u003c\/strong\u003e, with the north and south poles located on the two flat circular faces. This magnetisation provides a concentrated magnetic field for secure attachment to ferrous materials and consistent performance in positioning, holding, and locating applications.\u003c\/p\u003e\n\u003cp data-start=\"1277\" data-end=\"1677\"\u003eProtected by a durable \u003cstrong data-start=\"1300\" data-end=\"1342\"\u003enickel (Ni-Cu-Ni) triple-layer coating\u003c\/strong\u003e, the magnet offers excellent resistance to corrosion and everyday wear while maintaining a bright, polished finish. Whether you're developing prototypes, manufacturing precision equipment, or completing DIY projects, the \u003cstrong data-start=\"1564\" data-end=\"1614\"\u003eOD14mm x ID9mm x 3mm N38 Neodymium Ring Magnet\u003c\/strong\u003e provides dependable magnetic performance in a compact package.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1679\" data-end=\"1695\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1697\" data-end=\"2098\"\u003e\n\u003cli data-section-id=\"1s6bt3w\" data-start=\"1697\" data-end=\"1748\"\u003ePremium \u003cstrong data-start=\"1707\" data-end=\"1748\"\u003eN38 grade neodymium rare earth magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1wq908j\" data-start=\"1749\" data-end=\"1774\"\u003e\u003cstrong data-start=\"1751\" data-end=\"1774\"\u003e14mm outer diameter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1wr1jmw\" data-start=\"1775\" data-end=\"1799\"\u003e\u003cstrong data-start=\"1777\" data-end=\"1799\"\u003e9mm inner diameter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"kodk19\" data-start=\"1800\" data-end=\"1819\"\u003e\u003cstrong data-start=\"1802\" data-end=\"1819\"\u003e3mm thickness\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1k9wukw\" data-start=\"1820\" data-end=\"1862\"\u003eSlim ring profile with large centre hole\u003c\/li\u003e\n\u003cli data-section-id=\"1r6b7vf\" data-start=\"1863\" data-end=\"1905\"\u003eAxially magnetised through the thickness\u003c\/li\u003e\n\u003cli data-section-id=\"r3fo19\" data-start=\"1906\" data-end=\"1948\"\u003eStrong magnetic performance for its size\u003c\/li\u003e\n\u003cli data-section-id=\"173ooq3\" data-start=\"1949\" data-end=\"1990\"\u003eDurable nickel (Ni-Cu-Ni) plated finish\u003c\/li\u003e\n\u003cli data-section-id=\"yguljd\" data-start=\"1991\" data-end=\"2038\"\u003ePrecision manufactured for consistent quality\u003c\/li\u003e\n\u003cli data-section-id=\"hqhwen\" data-start=\"2039\" data-end=\"2098\"\u003eSuitable for industrial, commercial, and DIY applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"2100\" data-end=\"2123\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"2125\" data-end=\"2347\"\u003e\n\u003cli data-section-id=\"1sa1yao\" data-start=\"2125\" data-end=\"2145\"\u003eMagnetic couplings\u003c\/li\u003e\n\u003cli data-section-id=\"ehrq01\" data-start=\"2146\" data-end=\"2170\"\u003eElectronics assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"xyl53c\" data-start=\"2171\" data-end=\"2187\"\u003eSensor systems\u003c\/li\u003e\n\u003cli data-section-id=\"g0eet1\" data-start=\"2188\" data-end=\"2198\"\u003eRobotics\u003c\/li\u003e\n\u003cli data-section-id=\"st0e5j\" data-start=\"2199\" data-end=\"2222\"\u003ePrecision positioning\u003c\/li\u003e\n\u003cli data-section-id=\"1wzx7yo\" data-start=\"2223\" data-end=\"2244\"\u003eProduct development\u003c\/li\u003e\n\u003cli data-section-id=\"og07tv\" data-start=\"2245\" data-end=\"2267\"\u003eEngineering fixtures\u003c\/li\u003e\n\u003cli data-section-id=\"1o8izvh\" data-start=\"2268\" data-end=\"2290\"\u003eAutomation equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1pp28w4\" data-start=\"2291\" data-end=\"2320\"\u003eSmall mechanical assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"6uhs0b\" data-start=\"2321\" data-end=\"2347\"\u003eHobby and maker projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2349\" data-end=\"2362\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2364\" data-end=\"2580\"\u003e\n\u003cli data-section-id=\"7d099e\" data-start=\"2364\" data-end=\"2375\"\u003eEngineers\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2376\" data-end=\"2395\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"1qjcsvf\" data-start=\"2396\" data-end=\"2415\"\u003eOEM manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"11efqoi\" data-start=\"2416\" data-end=\"2441\"\u003eElectronics technicians\u003c\/li\u003e\n\u003cli data-section-id=\"chem9c\" data-start=\"2442\" data-end=\"2463\"\u003eRobotics developers\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2464\" data-end=\"2488\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2489\" data-end=\"2512\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"1lr07fs\" data-start=\"2513\" data-end=\"2539\"\u003eEducational institutions\u003c\/li\u003e\n\u003cli data-section-id=\"102oeyr\" data-start=\"2540\" data-end=\"2562\"\u003eMakers and hobbyists\u003c\/li\u003e\n\u003cli data-section-id=\"1ai1zf5\" data-start=\"2563\" data-end=\"2580\"\u003eDIY enthusiasts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wfcj9n\" data-start=\"2582\" data-end=\"2626\"\u003eWhy Choose an N38 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2628\" data-end=\"2922\"\u003eThe \u003cstrong data-start=\"2632\" data-end=\"2645\"\u003eN38 grade\u003c\/strong\u003e provides excellent magnetic performance while offering a cost-effective solution for a wide variety of commercial and industrial applications. Its compact dimensions make it ideal for assemblies where installation space is limited but dependable magnetic strength is required.\u003c\/p\u003e\n\u003cp data-start=\"2924\" data-end=\"3242\"\u003eThe \u003cstrong data-start=\"2928\" data-end=\"2951\"\u003e14mm outer diameter\u003c\/strong\u003e, \u003cstrong data-start=\"2953\" data-end=\"2972\"\u003e9mm centre hole\u003c\/strong\u003e, and \u003cstrong data-start=\"2978\" data-end=\"2995\"\u003e3mm thickness\u003c\/strong\u003e create a lightweight yet versatile ring magnet that can be mounted over shafts, rods, tubes, or fasteners. This design makes it ideal for magnetic positioning systems, rotating mechanisms, locating devices, and precision engineering applications.\u003c\/p\u003e\n\u003cp data-start=\"3244\" data-end=\"3466\"\u003eThe durable nickel-plated finish helps protect the magnet against corrosion and handling damage, while the precision manufacturing process ensures consistent magnetic performance and dimensional accuracy across every unit.\u003c\/p\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"3468\" data-end=\"3496\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"3498\" data-end=\"3927\"\u003e\n\u003cli data-section-id=\"11wbjya\" data-start=\"3498\" data-end=\"3539\"\u003e\n\u003cstrong data-start=\"3500\" data-end=\"3517\"\u003eProduct Type:\u003c\/strong\u003e Neodymium Ring Magnet\u003c\/li\u003e\n\u003cli data-section-id=\"1fqlth2\" data-start=\"3540\" data-end=\"3573\"\u003e\n\u003cstrong data-start=\"3542\" data-end=\"3555\"\u003eMaterial:\u003c\/strong\u003e Neodymium (NdFeB)\u003c\/li\u003e\n\u003cli data-section-id=\"j4nl5i\" data-start=\"3574\" data-end=\"3597\"\u003e\n\u003cstrong data-start=\"3576\" data-end=\"3593\"\u003eMagnet Grade:\u003c\/strong\u003e N38\u003c\/li\u003e\n\u003cli data-section-id=\"138gwy7\" data-start=\"3598\" data-end=\"3615\"\u003e\n\u003cstrong data-start=\"3600\" data-end=\"3610\"\u003eShape:\u003c\/strong\u003e Ring\u003c\/li\u003e\n\u003cli data-section-id=\"1m70ekj\" data-start=\"3616\" data-end=\"3647\"\u003e\n\u003cstrong data-start=\"3618\" data-end=\"3642\"\u003eOuter Diameter (OD):\u003c\/strong\u003e 14mm\u003c\/li\u003e\n\u003cli data-section-id=\"bfzv32\" data-start=\"3648\" data-end=\"3678\"\u003e\n\u003cstrong data-start=\"3650\" data-end=\"3674\"\u003eInner Diameter (ID):\u003c\/strong\u003e 9mm\u003c\/li\u003e\n\u003cli data-section-id=\"yft5gp\" data-start=\"3679\" data-end=\"3708\"\u003e\n\u003cstrong data-start=\"3681\" data-end=\"3704\"\u003eThickness (Height):\u003c\/strong\u003e 3mm\u003c\/li\u003e\n\u003cli data-section-id=\"14810zk\" data-start=\"3709\" data-end=\"3776\"\u003e\n\u003cstrong data-start=\"3711\" data-end=\"3729\"\u003eMagnetisation:\u003c\/strong\u003e Axially Magnetised (through the 3mm thickness)\u003c\/li\u003e\n\u003cli data-section-id=\"1fmz6qi\" data-start=\"3777\" data-end=\"3809\"\u003e\n\u003cstrong data-start=\"3779\" data-end=\"3791\"\u003eCoating:\u003c\/strong\u003e Nickel (Ni-Cu-Ni)\u003c\/li\u003e\n\u003cli data-section-id=\"92n46\" data-start=\"3810\" data-end=\"3829\"\u003e\n\u003cstrong data-start=\"3812\" data-end=\"3825\"\u003eReusable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-section-id=\"jmr9f3\" data-start=\"3830\" data-end=\"3927\"\u003e\n\u003cstrong data-start=\"3832\" data-end=\"3848\"\u003eApplication:\u003c\/strong\u003e Holding, positioning, mounting, sensing, automation, and precision engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"3929\" data-end=\"3944\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"3946\" data-end=\"4190\"\u003eNeodymium magnets are extremely powerful for their size and should be handled carefully. They can attract steel objects or other magnets suddenly, creating pinch hazards and potentially causing the magnet to chip or crack if allowed to collide.\u003c\/p\u003e\n\u003cp data-start=\"4192\" data-end=\"4380\"\u003eThe \u003cstrong data-start=\"4196\" data-end=\"4215\"\u003e9mm centre hole\u003c\/strong\u003e is intended for mounting and positioning purposes. Avoid overtightening fasteners or applying excessive mechanical force, as neodymium magnets are hard but brittle.\u003c\/p\u003e\n\u003cp data-start=\"4382\" data-end=\"4561\"\u003eActual magnetic holding strength will vary depending on the thickness and condition of the mating steel surface, air gap, alignment, operating temperature, and application design.\u003c\/p\u003e\n\u003cp data-start=\"4563\" data-end=\"4817\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eKeep this magnet away from children, pacemakers, medical implants, magnetic storage media, and sensitive electronic devices. Do not drill, cut, or machine the magnet after manufacture, as this may permanently damage the magnet and its protective coating.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39307485511812,"sku":"R-OD14H3ID9-N38","price":5.69,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/r-od15h3id9-n35_600x_600x_2a68d680-3710-4380-a46d-adacf98030d9.png?v=1752623822"},{"product_id":"neo-ring-od20xid16xh18-5mm-n42sh-black-epoxy-multi-pole-magnetisation-high-temp-120-deg-c","title":"Neodymium Ring Magnet – 20mm (OD) x 16mm (ID) x 18.5mm (H) | N42SH | Black Epoxy Coating | Multi-Pole Magnetisation | High Temperature ≤150ºC","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 20mm (OD) x 16mm (ID) x 18.5mm (H) | N42SH | Black Epoxy Coating | Multi-Pole Magnetisation | High Temperature\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 20mm OD x 16mm ID x 18.5mm H | N42SH\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a specialised, high-performance Rare Earth magnet designed for demanding technical, industrial and engineering applications requiring \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emulti-pole magnetisation, elevated-temperature capability and a protective black epoxy coating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42SH grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this permanent magnet combines high magnetic energy density with enhanced resistance to thermal demagnetisation compared with standard-temperature Neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eoutside diameter of 20mm, inside diameter of 16mm and height of 18.5mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this magnet has a hollow cylindrical design with a nominal radial wall thickness of just 2mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening allows the magnet to be incorporated into compatible shafts, sleeves, housings and specialised mechanical assemblies, making it particularly suitable for precision engineering and custom magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional ring magnets with a simple two-pole magnetic configuration, this product features \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emulti-pole magnetisation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, meaning multiple north and south magnetic poles are arranged within the magnet according to its manufactured pole pattern.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMulti-pole magnetisation is particularly useful in applications requiring a changing magnetic field as the magnet rotates or moves relative to a magnetic sensor or another component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes multi-pole ring magnets relevant to specialised applications such as rotary sensing, magnetic position detection, speed measurement, motor systems and precision magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe exact number of poles and their arrangement have not been specified. These details should be confirmed before selecting the magnet for a sensor, encoder or motor application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature N42SH Neodymium Material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42SH grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e belongs to the high-temperature SH class of Neodymium magnets, commonly associated with a maximum operating temperature of up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e150°C under suitable conditions\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis provides improved thermal capability compared with many standard Neodymium grades, making the material useful for applications involving elevated operating temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, the actual safe operating temperature depends on the magnet's geometry, magnetic circuit, external demagnetising fields and operating conditions. The 150°C figure is a typical grade-class reference, not a verified temperature rating for this specific finished product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProtective Black Epoxy Coating\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eblack epoxy coating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a protective surface finish and a distinctive black appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEpoxy coatings are commonly used to provide a barrier against moisture, corrosion and environmental exposure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe coating can also help protect the underlying Neodymium material from direct contact with surrounding components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, epoxy-coated magnets should not automatically be considered waterproof, chemically resistant or suitable for continuous outdoor exposure without application-specific verification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpecialised Multi-Pole Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe multi-pole configuration distinguishes this ring magnet from standard axially or diametrically magnetised ring magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts magnetic field pattern may be suitable for detecting rotational movement, position changes or other motion-related information when used with appropriately designed magnetic sensors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm outside diameter and 16mm internal opening\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allow integration into compact mechanical systems, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18.5mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides an extended cylindrical profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emulti-pole Neodymium ring magnet, N42SH high-temperature ring magnet, black epoxy Rare Earth ring magnet, multipolar NdFeB magnet, magnetic encoder ring or precision magnetic sensor ring\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is designed for applications where magnetic configuration and dimensional accuracy are critical.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing a rotary sensing system, manufacturing specialised industrial equipment, designing a magnetic position detection assembly or sourcing a high-temperature magnetic component, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets N42SH Multi-Pole Neodymium Ring Magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a specialised combination of magnetic material, ring geometry and protective coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eN42SH Neodymium Grade:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-performance Rare Earth magnetic material with enhanced thermal resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Temperature SH Classification:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Commonly associated with operating temperatures up to 150°C under suitable conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMulti-Pole Magnetisation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Multiple magnetic poles for specialised sensing and engineering applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e20mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact external dimensions for precision assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e16mm Inside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Central opening for compatible shafts, sleeves and housings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e18.5mm Height:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Extended cylindrical ring profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2mm Nominal Radial Wall Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Slim annular construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBlack Epoxy Coating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Protective finish with a distinctive black appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-energy permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHollow Cylindrical Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for integration into specialised mechanical systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Does not require external electrical power.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSpecialised Industrial Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Relevant to rotary sensing, motion detection and custom magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eRotary Position Sensing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMulti-pole ring magnets can be incorporated into appropriately designed systems that detect rotational position using compatible magnetic sensors.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Encoders\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially suitable for magnetic encoder assemblies where the pole count, pole spacing and magnetic field characteristics match the sensor requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpeed and Rotation Detection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMulti-pole magnetic fields can be used with compatible sensing systems to detect rotational movement and speed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectric Motor Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMay be suitable for specialised motor-related assemblies where the magnetic configuration has been verified against the design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIndustrial Automation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for custom automation equipment requiring magnetic position or movement detection.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe compact ring geometry supports integration into specialised mechanical components and assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature Equipment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe N42SH grade provides enhanced thermal capability for appropriately designed elevated-temperature applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Sensor Development\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eRelevant to research, prototyping and development of custom magnetic sensing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRobotics and Motion Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMay be incorporated into specialised motion feedback assemblies where magnetic field characteristics have been independently verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for engineered applications requiring a specific ring geometry, multi-pole magnetic field and protective coating.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N42SH Multi-Pole Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eSpecialised Multi-Pole Configuration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe multiple magnetic poles make this product suitable for applications requiring more complex magnetic field patterns than conventional two-pole magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Temperature Magnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42SH offers enhanced resistance to thermal demagnetisation compared with standard-temperature Neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 20mm outside diameter and 16mm internal opening provide a compact annular profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProtective Black Epoxy Finish\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe epoxy coating provides a protective barrier and distinctive black appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable for Precision Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring shape can be incorporated into compatible mechanical housings, shafts and sleeves.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet generates a persistent magnetic field without batteries or electricity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMulti-Pole Neodymium Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePermanent Rare Earth Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eN42SH\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTemperature Classification\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh Temperature – SH\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRing \/ Hollow Cylinder\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutside Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInside Diameter (ID)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight (H)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20mm OD x 16mm ID x 18.5mm H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Radial Wall Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMulti-Pole\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNumber of Magnetic Poles\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePole Arrangement\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCoating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBlack Epoxy\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eColour\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBlack\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical SH Grade Temperature Reference\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 150°C, subject to application conditions\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVerified Maximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Annular Cross-Sectional Area\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e113.1mm²\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eApproximate Magnet Volume\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2,092.3mm³\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRotary Sensing, Magnetic Encoders, Industrial Automation and Precision Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOutside Diameter – 20mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures 20mm across its outer circular surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis dimension determines the external space required for installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInside Diameter – 16mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening measures 16mm in diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis allows the magnet to be incorporated into compatible shafts, sleeves and mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 18.5mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures 18.5mm along its cylindrical axis.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis relatively tall ring profile distinguishes it from thin, washer-style ring magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eNominal Radial Wall Thickness – 2mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe radial wall thickness is calculated as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e(20mm − 16mm) ÷ 2 = 2mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis measurement describes the nominal distance between the inner and outer cylindrical surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Annular Cross-Sectional Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped cross-section has an approximate area of:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e113.1mm²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Magnet Volume\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBased on the specified dimensions, the approximate magnet volume is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2,092.3mm³ (2.09cm³)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese are geometric calculations and do not represent magnetic contact area, pull force or field strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Does N42SH Mean?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eN42SH identifies the magnetic material grade and temperature classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eN42\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe N42 designation refers to the material's maximum magnetic energy product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is a high-performance Neodymium grade suitable for demanding permanent magnet applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSH\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe SH designation indicates a higher-coercivity Neodymium material designed for improved resistance to demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSH-grade Neodymium magnets are commonly associated with maximum operating temperatures of up to 150°C under suitable conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, actual thermal performance depends on the magnet's geometry, magnetic circuit, surrounding components and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N42SH does not indicate a specific pull force, surface Gauss reading or guaranteed operating temperature for every magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is Multi-Pole Magnetisation?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eMulti-pole magnetisation refers to a magnetic configuration in which multiple north and south poles are formed within a single magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn conventional two-pole magnets, the magnetic field is generally arranged around one north pole and one south pole.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMulti-pole magnets feature a more complex magnetic field pattern with multiple pole regions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis can create repeated magnetic field changes as the magnet rotates or moves relative to a suitable magnetic sensor.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Is Multi-Pole Magnetisation Useful?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMulti-pole magnetisation can support:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRotational position detection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic encoder systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSpeed measurement\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMotion sensing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic switching\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom motor applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial automation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision magnetic assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eImportant Pole Configuration Information\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe exact number of poles, pole spacing and magnetisation orientation have not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese specifications are essential for applications involving magnetic encoders, sensors and motors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eConfirm the pole configuration and magnetic field characteristics before integrating the magnet into a precision system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMulti-Pole vs Conventional Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eMulti-Pole Ring Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eConventional Two-Pole Ring Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Pole Configuration\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMultiple Pole Regions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTwo Primary Poles\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Field Pattern\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApplication-Specific\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSimpler Two-Pole Arrangement\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRotary Sensing Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOften Suitable\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Sensor Design\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Encoder Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCommonly Used\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApplication Dependent\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMotor Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDesign Dependent\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDesign Dependent\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Field Verification\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eImportant\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eImportant\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEncoders, Sensors, Motion Detection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGeneral Magnetic Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eThe correct magnet depends on the required magnetic field pattern, pole count, geometry and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is Black Epoxy Coating?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eBlack epoxy coating is a protective surface finish applied to the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Iron Boron contains iron and can be susceptible to corrosion when exposed to moisture or unsuitable environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe epoxy coating provides a protective barrier between the magnetic material and its surroundings.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBenefits of Black Epoxy Coating\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProvides a protective surface finish\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHelps reduce direct environmental exposure\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOffers a distinctive black appearance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCan provide additional surface protection during normal handling\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSupports integration into suitable engineered assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eImportant Coating Considerations\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBlack epoxy coating should not automatically be considered waterproof, chemically resistant or suitable for continuous outdoor exposure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCoating performance depends on thickness, integrity, temperature, chemical exposure and mechanical conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAvoid scratching, chipping or damaging the coating during installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHigh-Temperature Neodymium Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eStandard Neodymium magnets can experience irreversible magnetic performance loss when exposed to temperatures beyond their operating limits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHigh-temperature grades such as N42SH are designed with improved resistance to thermal demagnetisation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes them useful in specialised equipment where elevated temperatures may be encountered.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFactors Affecting High-Temperature Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic grade and intrinsic coercivity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnet geometry\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic circuit design\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eExternal demagnetising fields\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDuration of heat exposure\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMechanical mounting conditions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCoating performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eThermal cycling\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe complete magnet assembly must be evaluated rather than relying solely on the grade's typical temperature classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does a Multi-Pole Ring Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is manufactured from Neodymium Iron Boron and magnetised to create multiple magnetic pole regions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the magnet rotates or moves relative to a compatible magnetic sensor, the sensor may detect changes in the magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese changes can be processed by a suitably designed electronic system to determine movement, speed or position.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central opening allows the ring magnet to be mounted around compatible mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic field pattern must match the sensing system's design requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual performance depends on pole count, pole orientation, sensor position, air gaps, temperature and mechanical alignment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBenefits of Multi-Pole Neodymium Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eCompact Magnetic Sensing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMultiple magnetic poles can be incorporated into a relatively small ring-shaped component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Motion Detection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for appropriately designed systems that monitor rotational movement and position.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Energy Density\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42SH Neodymium provides strong magnetic material properties within a compact volume.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEnhanced Thermal Capability\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe SH grade offers improved resistance to thermal demagnetisation compared with standard-temperature Neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProtective Surface Finish\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBlack epoxy coating helps protect the underlying magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Engineering Integration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe hollow cylindrical geometry is useful for specialised mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install an N42SH Multi-Pole Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify the 20mm outside diameter, 16mm inside diameter and 18.5mm height.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVerify Pole Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the number of poles, pole spacing and magnetic orientation required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Coating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check for cracks, chips or epoxy damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Mounting Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the housing or shaft is clean and dimensionally suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAvoid Excessive Pressure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Do not force the brittle magnet into an undersized mounting location.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSelect an Appropriate Mounting Method:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use a suitable adhesive, retaining system or engineered housing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck Sensor Alignment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify positioning and air gaps where magnetic sensors are involved.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Temperature Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure the complete assembly is suitable for the intended operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest Magnetic Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify the magnetic field pattern under actual operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eValidate the Finished Assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm mechanical stability, sensing accuracy and thermal performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle and can crack or chip if subjected to impact, bending or excessive installation pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Pole Configuration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe number and arrangement of magnetic poles determine the field pattern.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnet Dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 20mm OD, 16mm ID and 18.5mm height influence magnetic field distribution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42SH determines the material's magnetic energy characteristics and high-temperature classification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe distance between the magnet and nearby sensors or magnetic components affects field strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSensor Alignment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorrect positioning can reduce sensing accuracy or prevent proper operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eElevated temperatures can affect magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eExternal Magnetic Fields\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eStrong external magnetic fields may interfere with operation or contribute to demagnetisation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCoating and Mechanical Condition\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDamage to the magnet or its coating can affect long-term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent cracking or chipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid impact with steel objects or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not bend or flex the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill, cut or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtect the black epoxy coating from scratches and abrasion.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid excessive mechanical pressure during installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep the magnet clean and free from metal filings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid prolonged moisture exposure unless environmental suitability has been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore away from strong external magnetic fields where practical.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid exceeding the verified operating temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect the magnet and coating periodically.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify sensor performance after installation or maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCompliance \u0026amp; Safety\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Field:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract ferromagnetic objects unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep fingers and skin clear when positioning magnets near steel components or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can chip, crack or shatter under impact or excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCoating Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Damaged epoxy coating may expose the underlying magnetic material to corrosion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers, implanted medical devices and magnetically sensitive medical equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with certain electronic devices, sensors and magnetic storage media.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Temperature Use:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N42SH is a high-temperature grade, but the maximum operating temperature of this specific finished magnet has not been independently confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMulti-Pole Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Pole count and arrangement must be verified before use in precision sensing applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent testing is required before use where magnetic failure or sensing errors could create a safety risk.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat size is this Neodymium ring magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm outside diameter x 16mm inside diameter x 18.5mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat magnetic grade is this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42SH grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a Rare Earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium magnets are a type of Rare Earth permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N42SH mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42 identifies the magnetic material grade, while SH indicates enhanced resistance to thermal demagnetisation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a high-temperature magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. N42SH is classified as a high-temperature Neodymium grade.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan N42SH magnets operate at 150°C?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSH-grade magnets are commonly associated with temperatures up to 150°C under suitable conditions. The verified maximum operating temperature for this specific product has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is multi-pole magnetisation?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMulti-pole magnetisation means the magnet contains multiple north and south magnetic pole regions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHow many magnetic poles does this ring magnet have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe exact number of poles has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is specified as multi-pole magnetised. The exact pole arrangement and orientation have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be used in a magnetic encoder?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, provided the pole count, pole spacing and magnetic field characteristics match the encoder's requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be used for rotary sensing?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, it may be suitable for appropriately designed rotary sensing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be used in electric motors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially. Suitability depends on the motor design, magnetic configuration and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the inside diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe inside diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e16mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outside diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outside diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the wall thickness?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe nominal radial wall thickness is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the height?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18.5mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e along its cylindrical axis.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does this magnet have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eblack epoxy coating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs black epoxy coating corrosion resistant?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEpoxy coating provides a protective barrier, but its suitability depends on environmental exposure and coating integrity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA specific pull-force rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss rating?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA surface Gauss measurement has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDoes this magnet require electricity?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. It is a permanent magnet and generates its own magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I mount this magnet on a shaft?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially. The 16mm internal opening may accommodate a compatible shaft or sleeve, but mounting tolerances and mechanical retention must be verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill or machine this magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets should not be drilled, cut or machined using ordinary workshop methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for outdoor use?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan this magnet be used near electronic sensors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, in appropriately designed sensing systems. Its magnetic field may interfere with other nearby sensitive components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the advantage of multi-pole magnetisation?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMultiple magnetic poles can provide repeated magnetic field transitions useful for sensing rotation, movement and position.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the advantage of N42SH over standard N42?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42SH is designed for enhanced resistance to thermal demagnetisation at elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this magnet suitable for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitability must be independently verified through appropriate engineering assessment and testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMulti-Pole Neodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eN42SH High-Temperature Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBlack Epoxy Coated Neodymium Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Encoder Rings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRotary Sensor Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Cylinder Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Temperature Rare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision Magnetic Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial Magnetic Assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 20mm OD x 16mm ID x 18.5mm H | N42SH | Black Epoxy Coating | Multi-Pole Magnetisation | High Temperature\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a specialised Rare Earth permanent magnet intended for engineered magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42SH high-temperature Neodymium material, multi-pole magnetisation and a protective black epoxy coating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe exact pole count, pole spacing, pole orientation, pull force, surface Gauss and verified maximum operating temperature have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlthough N42SH magnets are commonly associated with operating temperatures up to 150°C under suitable conditions, this should not be interpreted as a guaranteed rating for the finished product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on magnet geometry, pole configuration, temperature, air gaps, surrounding materials and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnetic pole arrangement and field characteristics before using this product in rotary encoders, sensors or motor systems. Neodymium magnets are brittle and require careful handling. Independently verify performance for demanding or safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39307488559236,"sku":"23004D","price":95.1,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23004Dr.jpg?v=1752623818"},{"product_id":"ferrite-rotor-ring-magnet-od14mm-x-id6-95mm-x-h5-5mm","title":"Ferrite Rotor Ring Magnet OD14mm x ID6.95mm x H5.5mm | Multi-pole 24 poles","description":"\u003cp\u003e\u003cem\u003eThis ferrite magnet weighs 0.005kg. Gauss580 to 650 gauss. It has an outside diameter of 14mm, an inside diameter of 6.95mm and a height of 5.5mm. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe ferrite rotor ring magnet is a highly specialized magnetic component designed for precision and efficiency. It features 24 multipoles, making it ideal for applications requiring precise magnetic alignment and performance. Weighing just 0.005kg, it is lightweight but does not compromise on strength, offering a Gauss rating between 580 and 650 Gauss. \u003c\/p\u003e\n\u003cp\u003eThis rotor ring magnet’s multipole configuration is essential in applications such as electric motors, generators and sensors, where the orientation and number of poles can significantly influence performance. The 24-pole design allows for a high degree of precision in controlling rotational speed and torque, a crucial aspect of these applications. \u003c\/p\u003e\n\u003cp\u003eThe ferrite rotor ring magnet plays a critical role in ensuring efficient and smooth operation and enables the motor to achieve higher torque at lower speeds, enhancing overall efficiency and performance. This makes it ideal for use in small electric motors found in household appliances, automotive applications, and industrial machinery. The precise magnetic fields generated by the 24 poles help reduce energy consumption and increase the longevity of the motor by minimizing wear and tear. \u003c\/p\u003e\n\u003cp\u003eGenerators also benefit from the use of this rotor ring magnet. Its high Gauss rating and multipole configuration contribute to efficient energy conversion, enabling the generator to operate at optimal performance levels. This is particularly important in applications where consistent and reliable power output is necessary, such as in backup power systems, renewable energy installations and portable generators. \u003c\/p\u003e\n\u003cp\u003eIn sensor technology, the ferrite rotor ring magnet’s ability to provide precise and stable magnetic fields makes it an invaluable device. Sensors that rely on magnetic fields for detecting motion, position, or speed can achieve higher accuracy and reliability with this type of magnet. In automotive applications, this magnet can be used in wheel speed sensors, throttle position sensors and other critical components that require precise magnetic measurements. \u003c\/p\u003e\n\u003cp\u003eThe compact size of this ferrite magnet makes it ideal for use in portable electronic devices and other space-constrained applications. Its ability to deliver strong and stable magnetic fields despite its small size means it can meet the demanding requirements of modern electronic devices without adding significant weight or bulk. \u003c\/p\u003e\n\u003cp\u003eBecause it is constructed from ferrite material, the magnet has high resistance to de-magnetization and corrosion which makes it suitable for use in harsh environments where it is exposed to temperature variations and moisture. The durability and reliability of ferrite magnets means they can withstand the rigors of demanding applications while maintaining performance. \u003c\/p\u003e\n\u003cp\u003eThe ferrite rotor ring magnet is a versatile and high-performance component suitable for a wide range of applications, with a precise magnetic alignment, high Gauss rating, and compact design making it ideal for use in electric motors, generators, sensors and various electronic devices. Whether in automotive systems, industrial machinery, or consumer electronics, this magnet provides performance, reliability efficiency and accuracy in critical applications.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39556218683524,"sku":"88966","price":5.74,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/88966.jpg?v=1781863254"},{"product_id":"neodymium-countersunk-ring-magnet-od12-7mm-x-4mm-x-c-sunk-d3-12mm","title":"Neodymium Countersunk Ring Magnet - OD12.7mm x 4mm x C\/sunk d3.12mm","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Countersunk Ring Magnet – 12.7mm OD x 4mm H | 3.12mm Countersunk Hole\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Countersunk Ring Magnet – 12.7mm Outer Diameter x 4mm Height | 3.12mm Countersunk Hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact, high-strength Rare Earth permanent magnet designed for convenient screw mounting, precision engineering, magnetic closures and custom fastening applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this circular magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm outer diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecentral countersunk hole with a specified 3.12mm diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing it to be incorporated into suitable screw-mounted assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe countersunk design provides a recessed fixing point for a compatible flat-head screw, helping create a neat, low-profile installation when the screw head and countersink dimensions are correctly matched.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional solid disc magnets, this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium countersunk ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e features a central mounting opening, making it particularly useful for applications where a magnetic component needs to be mechanically secured to timber, plastic, aluminium, steel or other suitable mounting materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm diameter\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a compact circular magnetic profile, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e makes it suitable for shallow recesses, small fixtures, cabinet components and specialised magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are among the strongest commercially available permanent magnetic materials, offering high magnetic energy density compared with conventional Ferrite magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes them particularly useful for applications where a compact magnet is required to provide magnetic attraction without occupying excessive installation space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecountersunk mounting arrangement\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allows the magnet to be attached using suitable hardware, providing a practical alternative to adhesive-only mounting methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen installed correctly, the recessed screw head can help maintain a relatively unobstructed magnetic contact surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet may be used to attract a compatible steel plate, ferromagnetic component or another appropriately oriented magnet, depending on the intended application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTypical uses include magnetic cabinet closures, removable panels, access covers, custom fixtures, equipment housings, display systems, workshop projects and precision engineering assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBecause the magnet is manufactured from brittle Neodymium material, care must be taken during installation. Excessive screw tightening or concentrated pressure around the countersunk opening may cause the magnet to crack or chip.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe fixing screw should be selected to match the actual hole and countersink geometry, and a suitable mounting arrangement should prevent excessive mechanical stress.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe supplied dimensions identify a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.12mm countersunk hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, but the full countersink profile, including the recess diameter and angle, has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese details should be confirmed before selecting a fixing screw.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specific Neodymium grade, pull force, surface Gauss, magnetisation direction, protective coating and maximum operating temperature have also not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic holding strength depends on the magnetic material, magnetisation direction, receiving steel thickness, air gaps, contact area, mounting configuration and load direction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm countersunk Neodymium magnet, half-inch Rare Earth ring magnet, screw-mounted Neodymium ring magnet, small countersunk magnetic fixing, countersunk disc magnet with hole or magnetic mounting ring\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product provides a versatile solution for compact magnetic fastening applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're creating a magnetic cabinet catch, securing a removable panel, developing a custom magnetic fixture or manufacturing a specialised component, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Countersunk Ring Magnet – OD12.7mm x 4mm x Countersunk d3.12mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers a practical combination of compact dimensions, permanent magnetic attraction and mechanical mounting capability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm Outer Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compact circular magnet measuring approximately half an inch across.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e4mm Thickness:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Low-profile design for shallow mounting applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e3.12mm Countersunk Hole:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Central opening designed for compatible recessed fixing hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-strength Rare Earth permanent magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCountersunk Mounting Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows installation using a suitable flat-head screw.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Fixing Capability:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for applications requiring a screw-mounted magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact Magnetic Profile:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for miniature fixtures, closures and equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnetism:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e No batteries or electrical power required.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCircular Ring Geometry:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Features a central mounting opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLow-Profile Installation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Recessed screw mounting can help minimise protrusion.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMagnetic Closure Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for appropriately designed cabinet catches and removable panels.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrecision Engineering Potential:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for specialised assemblies and prototypes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVersatile Mounting Options:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Can be secured to suitable non-magnetic or magnetic substrates.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReusable Magnetic Fastening:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for removable magnetic connections where the magnet remains mechanically fixed.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Cabinet Closures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCreate compact magnetic catches for suitable cabinet doors, drawers and small enclosures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRemovable Access Panels\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSecure lightweight removable panels using an appropriately rated magnetic connection.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Door Catches\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into small magnetic closure systems where a screw-mounted magnet is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEquipment Housings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eProvide magnetic attachment points for suitable removable covers and components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWorkshop Fixtures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCreate compact magnetic positioning and fastening systems for custom projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDisplay and Signage Mounting\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in appropriately designed removable display components and magnetic fixtures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFurniture Manufacturing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into cabinets, joinery and custom furniture where discreet magnetic fastening is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Prototyping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDevelop magnetic attachment concepts for specialised products.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Engineering\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into custom assemblies requiring a compact, mechanically mounted permanent magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eModel Making\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in securely assembled models and technical projects where a countersunk magnetic fixing is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose a Countersunk Neodymium Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eConvenient Screw Mounting\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe countersunk central hole provides a practical mechanical fixing option.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCompact 12.7mm Diameter\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for small mounting locations and space-restricted designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLow-Profile 4mm Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for shallow recesses and discreet magnetic closures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eStrong Rare Earth Material\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium provides high magnetic energy density relative to conventional Ferrite materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRecessed Screw Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA correctly matched flat-head screw can sit within the countersunk opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Magnetic Fastening\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for a wide range of engineered closures, fixtures and removable components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFrenergy Magnets\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Countersunk Ring Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNeodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnet Category\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRare Earth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShape\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCountersunk Ring \/ Circular Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOuter Diameter (OD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.7mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight \/ Thickness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSpecified Hole Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.12mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHole Design\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCountersunk\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCountersink Recess Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCountersink Angle\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePull Force\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Gauss\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtective Coating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturing Tolerance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Screw Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRequires Verification\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFixing Screw Included\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Specified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Closures, Removable Panels, Fixtures and Screw-Mounted Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding the Magnet Dimensions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOuter Diameter – 12.7mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has an overall outside diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, equivalent to approximately half an inch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis compact size is suitable for small mounting locations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 4mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a low-profile magnetic body.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCountersunk Hole – 3.12mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe specified central hole diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.12mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe hole features a countersunk design intended for compatible recessed fixing hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe complete countersink dimensions have not been supplied, so the fixing screw's head diameter and angle should be checked before installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApproximate Circular Face Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outer circular area, before allowing for the mounting hole, is:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eπ × (6.35mm)² = approximately 126.68mm²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe actual annular contact area is smaller because of the central hole and countersunk recess.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMaterial Volume and Weight\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe exact magnetic material volume and weight cannot be reliably calculated from the supplied dimensions because the complete countersink geometry is unknown.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is a Neodymium Countersunk Ring Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNeodymium countersunk ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a circular Rare Earth permanent magnet featuring a central hole with a recessed countersink.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe countersink is designed to accommodate suitable flat-head fixing hardware, allowing the magnet to be mechanically secured to a compatible substrate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk magnets are commonly used for magnetic closures, removable panels, cabinet fittings, fixtures and specialised mounting systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey provide an alternative to adhesive-only mounting methods where a mechanical fixing is preferred.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow Does a Countersunk Neodymium Magnet Work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Neodymium material produces a permanent magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen positioned near suitable ferromagnetic steel or another appropriately oriented magnet, magnetic attraction can create a removable connection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central countersunk hole allows the magnet to remain mechanically secured to the mounting surface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic connection can then be used to retain a suitable panel, cover, door or component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual holding strength depends on the magnetic grade, magnetisation direction, contact conditions and receiving material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eUnderstanding Magnetisation Direction\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eAxial Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIf magnetised through its 4mm thickness, the magnetic poles are located on opposite circular faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDiametric Magnetisation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIf magnetised across its diameter, the poles are positioned on opposing sides of the circular body.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Magnetisation Matters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMagnetisation direction influences magnetic field distribution and the effectiveness of the magnetic fastening arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe magnetisation direction of this product has not been specified and should be confirmed before use in applications requiring a particular pole orientation.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCountersunk Magnets vs Standard Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eCountersunk Ring Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eStandard Ring Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCentral Hole\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRecessed Screw Head\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDesigned for Compatible Flat-Head Screw\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Usually\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMounting Style\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Fixing\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eShaft, Housing or Other Retention\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eClosures, Panels, Fixtures\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eShafts, Sensors, Assemblies\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLow-Profile Screw Mounting\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes, with Correct Hardware\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Design\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMagnetic Performance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Material and Geometry\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Material and Geometry\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eCountersunk Neodymium Magnets vs Adhesive Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFeature\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eCountersunk Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eAdhesive-Backed Magnet\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Screw\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable Adhesive\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Fixing\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAdhesive Bond\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRepositioning\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRemove and Refit Screw\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Adhesive\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSurface Preparation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable Fixing Point Required\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eClean Bonding Surface Required\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFixtures, Closures, Panels\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDisplays, Lightweight Components\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRetention Strength\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Fixing and Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDepends on Adhesive and Magnet\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Install the Countersunk Ring Magnet\u003c\/span\u003e\u003c\/h2\u003e\n\u003col data-spread=\"false\" start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm the Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check the 12.7mm diameter, 4mm thickness and 3.12mm hole specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure it is free from cracks, chips or coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Countersink Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check the actual recess diameter and angle before selecting a screw.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eChoose the Mounting Surface:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Select a suitable substrate capable of securely retaining the fixing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrepare the Fixing Point:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Drill a suitable pilot hole where required by the substrate and screw type.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePosition the Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Align the countersunk hole with the fixing point.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInsert the Compatible Screw:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Use a suitable flat-head fixing that matches the countersink geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTighten Carefully:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Secure the magnet without applying excessive pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCheck the Screw Head:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure it does not protrude in a way that interferes with the intended magnetic contact.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAlign the Receiving Component:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Position the corresponding steel plate or magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTest the Connection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Verify magnetic holding performance under expected conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInspect Periodically:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Check the fixing and magnet for movement or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle. Excessive screw tightening can crack the magnet. Do not use impact drivers or apply uncontrolled torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFactors Affecting Magnetic Holding Strength\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic grade influences the material's magnetic energy density.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePole orientation determines magnetic field distribution.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eReceiving Steel\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSteel thickness, composition and geometry affect attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAir Gaps\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePaint, coatings, uneven surfaces and protruding screw heads can reduce magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContact Area\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFull, even contact generally improves magnetic holding strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCountersunk Opening\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole and countersink reduce magnetic material volume compared with a solid disc.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLoad Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDirect pull and sideways sliding loads behave differently.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMounting Stability\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA loose or poorly fitted screw can affect the assembly's reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExcessive heat can permanently reduce Neodymium magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Damage\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCracks or chips may reduce structural integrity and reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCare and Maintenance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandle carefully to prevent cracking or chipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid dropping or striking the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDo not drill or machine the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse correctly matched fixing hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid overtightening screws.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrevent uncontrolled collisions with other magnets or steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProtect from excessive heat.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep dry where corrosion resistance has not been verified.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInspect for cracks and coating damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCheck screw security periodically.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eKeep away from magnetically sensitive equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eStore securely away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSafety Information\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets can attract ferromagnetic objects unexpectedly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrittle Material:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets may chip, crack or shatter under impact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eScrew Tightening:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Excessive tightening can fracture the magnet around the countersunk hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePinch Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep fingers clear when magnets approach steel or other magnets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSwallowing Hazard:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Small powerful magnets can cause serious internal injuries if swallowed. Keep away from children and pets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMedical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Keep magnets away from pacemakers and magnetically sensitive implanted medical devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eElectronic Equipment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Magnetic fields may interfere with sensitive electronic equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature Limitations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCorrosion Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The protective coating has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSafety-Critical Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Independent engineering assessment and testing are required before use where failure could cause injury or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eWhat are the dimensions of this countersunk Neodymium magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm in outer diameter and 4mm in thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with a specified \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.12mm countersunk hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat material is it made from?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIt is manufactured from Neodymium Iron Boron (NdFeB).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs this a Rare Earth magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium is a Rare Earth magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the outer diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe outer diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the thickness?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm thick\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the hole diameter?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe specified hole diameter is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.12mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the hole countersunk?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. The magnet features a central countersunk hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat screw size does it accept?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe compatible screw size has not been confirmed. The full countersink diameter and angle must be checked before selecting a screw.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan the screw head sit flush?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA correctly matched flat-head screw may sit recessed, depending on the actual countersink geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs a screw included?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe supplied accessories have not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the magnetic grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetic grade has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA pull-force rating has not been provided.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the surface Gauss?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe surface Gauss rating has not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet axially magnetised?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnetisation direction has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat coating does it have?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe protective coating has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for magnetic cabinet closures?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, in appropriately designed magnetic closure systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for removable panels?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided the magnetic holding capacity is sufficient for the intended application.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I screw it into timber?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially, using suitable fixing hardware and an appropriate pilot hole.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I mount it onto plastic?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided the plastic component and fixing arrangement are suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I mount it onto aluminium?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, using an appropriate mechanical fixing. Aluminium itself is not ferromagnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. It attracts suitable ferromagnetic steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWill it attract stainless steel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly if the stainless steel grade is sufficiently magnetic.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I overtighten the screw?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Excessive tightening can crack the brittle Neodymium magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I drill the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Neodymium magnets should not be drilled or machined.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs the magnet waterproof?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWaterproof performance has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it outdoors?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutdoor suitability has not been confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is the maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for model making?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, in securely assembled projects where the magnet cannot become detached or swallowed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs it suitable for children?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. Small powerful magnets present a serious swallowing hazard.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for safety-critical applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOnly after appropriate engineering verification and testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eRelated Products\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Countersunk Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Ring Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Disc Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Block Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium Pot Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCountersunk Pot Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Cabinet Closures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Mounting Components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRare Earth Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Fixing Accessories\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003ePlease Note\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Countersunk Ring Magnet – OD12.7mm x 4mm x Countersunk d3.12mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed for compact magnetic fastening and screw-mounted applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12.7mm in outer diameter and 4mm in thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.12mm specified countersunk hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe complete countersink dimensions, magnetic grade, magnetisation direction, pull force, surface Gauss, protective coating, maximum operating temperature and manufacturing tolerance have not been supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic holding performance depends on magnetic material, receiving steel, contact area, air gaps, load direction and installation conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Neodymium magnets are brittle and must be installed carefully. Use correctly matched fixing hardware and avoid excessive tightening, impact or mechanical pressure. Small powerful magnets present a serious swallowing hazard and must be kept away from children and pets. Independent testing is required before use in safety-critical applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39611577434244,"sku":"23011","price":3.16,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23011_1_600x_b359e5d7-7439-456e-bd73-d2cd22a30665.jpg?v=1752623783"},{"product_id":"neodymium-ring-magnet-od20-x-h8-x-id10-mm-n45h-high-temp-120deg-epoxy-coated","title":"Neodymium Ring Magnet OD20mm x H8mm | Hole 10mm | N45H | Epoxy Coated | High Temperature ≤120ºC","description":"\u003ch2\u003eMagnetic Product Description:\u003c\/h2\u003e\n\u003cp\u003eThis rare earth ring magnet has an outside diameter of 20mm, an inside diameter of 10mm and a thickness of 8mm. It has a pull force of 7.30 kg. \u003c\/p\u003e\n\u003ch3\u003eUses for our rare earth ring magnets:\u003c\/h3\u003e\n\u003cp\u003eYou may not think grains, like wheat and rice grown for human consumption are a perfect match for these neodymium ring 20mmx10mmx8mm epoxy coated magnets. Let us explain.\u003c\/p\u003e\n\u003cp\u003eHarvest time for grains like wheat and rice is not the end, just the beginning of the end. For the grains it is the beginning of a long journey where they will encounter a lot of metal equipment and metal products, often helped along by magnets, including ring magnets.\u003c\/p\u003e\n\u003cp\u003eIn the first instance, the grain harvesters’ long horizontal threshing blades are often held securely, but not too securely in place with the assistance of powerful ring magnets. Helping with the regulated, rhythmic operation of huge scything blades, magnets also play another vital role. Ring magnets can act as a clutch, releasing their grip at a known force or pressure should the combine harvester’s valuable and finely machined grain cutting equipment jam on something strong, like tree stump or an animal carcass.\u003c\/p\u003e\n\u003cp\u003eThis ability of controlled slippage, or clutch function provided by magnetic engagement in an emergency, prevents in the initial stages at least, the transfer of mechanical power to the valuable blades while they are jammed. Direct power while the equipment is stuck could damage the harvester’s blades or its engine or both.\u003c\/p\u003e\n\u003cp\u003eRing magnets as a failsafe or circuit breaking system is highly valued by individuals or companies liable for the repair and downtime costs. The release force of ring magnets protecting combine harvesters is comparable to the release force required for the cook to remove a saucepan from its magnetic hold above the stove: they are both known in advance. A saucepan is required to boil or steam grains like wheat, oats and rice.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39652679385220,"sku":"23013 N45H","price":13.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23013_600x_4bd48cba-97b4-47fc-b9c6-ae3b038fa712.jpg?v=1752623780"}],"url":"https:\/\/frenergy.com.au\/collections\/ring-magnets.oembed?page=4","provider":"Frenergy Magnets","version":"1.0","type":"link"}