{"title":"Large 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-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-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-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-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-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":"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-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-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":"magnetic-ring-assembly-w-half-discs-od28x9mm-n42","title":"Magnetic Ring Assembly w\/ Half Discs OD28x9mm N42","description":"\u003cp\u003eMagnetic Ring Assembly w\/ 2 NdFeB Half Disc-Shaped Magnets Attached to Steel Washer\u003cbr\u003e----------\u003cbr\u003e2 half disc-shaped magnets with one NORTH and one SOUTH face on top\u003cbr\u003e----------\u003cbr\u003e2x Half neo disc magnet: D28x6mm, NiCUNi, N42 \u003cbr\u003e----------\u003cbr\u003eMetal ring plate: soft iron backing plate OD28x3mm (+\/-0.3mm)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUses for our Two Half Magnet with Metal Ring Assembly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis unique magnetic assembly bonds extremely well to steel surfaces. The opposing North and South poles of the two half disc magnets create a strong magnetic field. The channel space or cutout area (12mm l x10mm w x5mm h)allows cable, rope or wiring to be held securely to a vertical or horizontal metal surface. This can be helpful in the fitting and securing of media cabling or other vital electrical wiring such as CCTV equipment or security lighting. The round hole diameter is 12mm and can be used as another access point for cabling or for attaching the magnet to another type of surface. \u003cstrong\u003eNB. The metal ring surface is not magnetic.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":39296083918980,"sku":"MARD28H9","price":22.94,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/mard28h9.jpg?v=1752623878"},{"product_id":"neodymium-ring-magnet-od29-x-h10-x-id10-mm-n45h-high-temperature-120ºc","title":"Neodymium Ring Magnet OD29mm x H8mm | Hole 10mm | N45H | High Temperature ≤120ºC","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-2\" 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-2\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-2\" data-testid=\"conversation-turn-460\" 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=\"4abbf094-4ee6-490d-8a54-908cd51883b0\" 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=\"164hy3s\" data-start=\"0\" data-end=\"81\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet – OD29mm x H8mm | ID10mm | N45H | High Temperature 120°C\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"83\" data-end=\"638\"\u003eThe \u003cstrong data-start=\"87\" data-end=\"142\"\u003eNeodymium Ring Magnet OD29mm x H8mm | ID10mm | N45H\u003c\/strong\u003e is a premium \u003cstrong data-start=\"156\" data-end=\"194\"\u003ehigh-temperature rare earth magnet\u003c\/strong\u003e engineered for applications that demand exceptional magnetic strength and reliable performance in elevated temperature environments. Manufactured from \u003cstrong data-start=\"346\" data-end=\"389\"\u003eN45H-grade Neodymium Iron Boron (NdFeB)\u003c\/strong\u003e, this ring magnet measures \u003cstrong data-start=\"417\" data-end=\"493\"\u003e29mm outside diameter (OD), 10mm inside diameter (ID), and 8mm thick (H)\u003c\/strong\u003e, making it ideal for industrial machinery, automation systems, electric motors, sensors, magnetic couplings, and precision engineering projects.\u003c\/p\u003e\n\u003cp data-start=\"640\" data-end=\"874\"\u003eThe \u003cstrong data-start=\"644\" data-end=\"664\"\u003e10mm centre hole\u003c\/strong\u003e enables the magnet to be securely mounted over bolts, shafts, spacers, or threaded fasteners, making it a popular choice for mechanical assemblies, magnetic fixtures, rotating equipment, and OEM manufacturing.\u003c\/p\u003e\n\u003cp data-start=\"876\" data-end=\"1154\"\u003eUnlike standard neodymium magnets, the \u003cstrong data-start=\"915\" data-end=\"929\"\u003eN45H grade\u003c\/strong\u003e is specifically designed to maintain excellent magnetic performance at operating temperatures of up to \u003cstrong data-start=\"1033\" data-end=\"1042\"\u003e120°C\u003c\/strong\u003e, making it suitable for applications where heat would reduce the performance of conventional neodymium magnets.\u003c\/p\u003e\n\u003cp data-start=\"1156\" data-end=\"1361\"\u003eThis magnet is \u003cstrong data-start=\"1171\" data-end=\"1193\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the magnetic poles are located on the two flat circular faces, delivering maximum holding force when placed against a ferrous steel surface or another magnet.\u003c\/p\u003e\n\u003cp data-start=\"1363\" data-end=\"1550\"\u003eA durable \u003cstrong data-start=\"1373\" data-end=\"1416\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e protects the magnet from corrosion, oxidation, and everyday wear while providing a smooth, polished finish for long-term reliability.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1552\" data-end=\"1568\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1569\" data-end=\"2011\"\u003e\n\u003cli data-section-id=\"6ihhlt\" data-start=\"1569\" data-end=\"1626\"\u003ePremium \u003cstrong data-start=\"1579\" data-end=\"1626\"\u003eN45H-grade rare earth neodymium ring magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"w2a5ik\" data-start=\"1627\" data-end=\"1676\"\u003eDimensions: \u003cstrong data-start=\"1641\" data-end=\"1676\"\u003e29mm (OD) x 10mm (ID) x 8mm (H)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"f6528u\" data-start=\"1677\" data-end=\"1718\"\u003e\u003cstrong data-start=\"1679\" data-end=\"1718\"\u003eHigh-temperature rating up to 120°C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1c8mum3\" data-start=\"1719\" data-end=\"1774\"\u003eStrong magnetic performance in demanding environments\u003c\/li\u003e\n\u003cli data-section-id=\"14y5wb9\" data-start=\"1775\" data-end=\"1838\"\u003e\n\u003cstrong data-start=\"1777\" data-end=\"1799\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face holding force\u003c\/li\u003e\n\u003cli data-section-id=\"6fc21g\" data-start=\"1839\" data-end=\"1892\"\u003eDurable \u003cstrong data-start=\"1849\" data-end=\"1892\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"m2dw2r\" data-start=\"1893\" data-end=\"1950\"\u003ePrecision centre hole for mounting over bolts or shafts\u003c\/li\u003e\n\u003cli data-section-id=\"882x33\" data-start=\"1951\" data-end=\"1979\"\u003eCorrosion-resistant finish\u003c\/li\u003e\n\u003cli data-section-id=\"1equpbf\" data-start=\"1980\" data-end=\"2011\"\u003eLong-lasting permanent magnet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"2013\" data-end=\"2036\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"2037\" data-end=\"2291\"\u003e\n\u003cli data-section-id=\"1379ml4\" data-start=\"2037\" data-end=\"2069\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-section-id=\"jeijeu\" data-start=\"2070\" data-end=\"2101\"\u003eIndustrial automation systems\u003c\/li\u003e\n\u003cli data-section-id=\"o7uoh9\" data-start=\"2102\" data-end=\"2132\"\u003eMechanical fixtures and jigs\u003c\/li\u003e\n\u003cli data-section-id=\"1sa1yao\" data-start=\"2133\" data-end=\"2153\"\u003eMagnetic couplings\u003c\/li\u003e\n\u003cli data-section-id=\"1qbivta\" data-start=\"2154\" data-end=\"2183\"\u003eSensors and instrumentation\u003c\/li\u003e\n\u003cli data-section-id=\"g0eet1\" data-start=\"2184\" data-end=\"2194\"\u003eRobotics\u003c\/li\u003e\n\u003cli data-section-id=\"lacr6q\" data-start=\"2195\" data-end=\"2220\"\u003eManufacturing equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1t3t4w9\" data-start=\"2221\" data-end=\"2258\"\u003eScientific and laboratory equipment\u003c\/li\u003e\n\u003cli data-section-id=\"pmkcr5\" data-start=\"2259\" data-end=\"2291\"\u003eProduct design and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2293\" data-end=\"2306\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2307\" data-end=\"2519\"\u003e\n\u003cli data-section-id=\"8wpcmh\" data-start=\"2307\" data-end=\"2329\"\u003eMechanical engineers\u003c\/li\u003e\n\u003cli data-section-id=\"1f0kibv\" data-start=\"2330\" data-end=\"2356\"\u003eIndustrial manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2357\" data-end=\"2381\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"hqt4e9\" data-start=\"2382\" data-end=\"2411\"\u003eOEM equipment manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2412\" data-end=\"2431\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"4nfm67\" data-start=\"2432\" data-end=\"2455\"\u003eMaintenance engineers\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2456\" data-end=\"2479\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"13nj8dr\" data-start=\"2480\" data-end=\"2519\"\u003eAdvanced DIY and fabrication projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1p4zii6\" data-start=\"2521\" data-end=\"2573\"\u003eWhy Choose an N45H High Temperature Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2575\" data-end=\"3009\"\u003eThe \u003cstrong data-start=\"2579\" data-end=\"2627\"\u003e29mm x 10mm x 8mm N45H Neodymium Ring Magnet\u003c\/strong\u003e combines powerful magnetic performance with enhanced resistance to elevated temperatures. While standard neodymium magnets may begin to lose magnetic strength when exposed to heat, the \u003cstrong data-start=\"2813\" data-end=\"2827\"\u003eN45H grade\u003c\/strong\u003e is designed to operate continuously at temperatures up to \u003cstrong data-start=\"2886\" data-end=\"2895\"\u003e120°C\u003c\/strong\u003e, making it ideal for industrial environments, automotive applications, and equipment operating near heat sources.\u003c\/p\u003e\n\u003cp data-start=\"3011\" data-end=\"3330\"\u003eIts \u003cstrong data-start=\"3015\" data-end=\"3035\"\u003e10mm centre hole\u003c\/strong\u003e makes installation quick and secure, allowing the magnet to be incorporated into rotating assemblies, magnetic clamping systems, sensors, and custom mechanical designs. The thick 8mm profile provides excellent magnetic field depth and strong holding performance, even in demanding applications.\u003c\/p\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"3332\" data-end=\"3360\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"3361\" data-end=\"3733\"\u003e\n\u003cli data-section-id=\"12y85oy\" data-start=\"3361\" data-end=\"3405\"\u003e\n\u003cstrong data-start=\"3363\" data-end=\"3376\"\u003eMaterial:\u003c\/strong\u003e Neodymium Iron Boron (NdFeB)\u003c\/li\u003e\n\u003cli data-section-id=\"1r0pvw4\" data-start=\"3406\" data-end=\"3430\"\u003e\n\u003cstrong data-start=\"3408\" data-end=\"3425\"\u003eMagnet Grade:\u003c\/strong\u003e N45H\u003c\/li\u003e\n\u003cli data-section-id=\"138gwy7\" data-start=\"3431\" data-end=\"3448\"\u003e\n\u003cstrong data-start=\"3433\" data-end=\"3443\"\u003eShape:\u003c\/strong\u003e Ring\u003c\/li\u003e\n\u003cli data-section-id=\"102z59d\" data-start=\"3449\" data-end=\"3482\"\u003e\n\u003cstrong data-start=\"3451\" data-end=\"3477\"\u003eOutside Diameter (OD):\u003c\/strong\u003e 29mm\u003c\/li\u003e\n\u003cli data-section-id=\"vsi17o\" data-start=\"3483\" data-end=\"3515\"\u003e\n\u003cstrong data-start=\"3485\" data-end=\"3510\"\u003eInside Diameter (ID):\u003c\/strong\u003e 10mm\u003c\/li\u003e\n\u003cli data-section-id=\"148a3ya\" data-start=\"3516\" data-end=\"3545\"\u003e\n\u003cstrong data-start=\"3518\" data-end=\"3541\"\u003eHeight (Thickness):\u003c\/strong\u003e 8mm\u003c\/li\u003e\n\u003cli data-section-id=\"8inpop\" data-start=\"3546\" data-end=\"3596\"\u003e\n\u003cstrong data-start=\"3548\" data-end=\"3566\"\u003eMagnetisation:\u003c\/strong\u003e Axial (through the thickness)\u003c\/li\u003e\n\u003cli data-section-id=\"1k697zb\" data-start=\"3597\" data-end=\"3643\"\u003e\n\u003cstrong data-start=\"3599\" data-end=\"3611\"\u003eCoating:\u003c\/strong\u003e Nickel-Copper-Nickel (Ni-Cu-Ni)\u003c\/li\u003e\n\u003cli data-section-id=\"34fytn\" data-start=\"3644\" data-end=\"3686\"\u003e\n\u003cstrong data-start=\"3646\" data-end=\"3680\"\u003eMaximum Operating Temperature:\u003c\/strong\u003e 120°C\u003c\/li\u003e\n\u003cli data-section-id=\"48w55q\" data-start=\"3687\" data-end=\"3733\"\u003e\n\u003cstrong data-start=\"3689\" data-end=\"3705\"\u003eMagnet Type:\u003c\/strong\u003e Permanent Rare Earth Magnet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"3735\" data-end=\"3750\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"3752\" data-end=\"3902\"\u003eThis is a \u003cstrong data-start=\"3762\" data-end=\"3797\"\u003ehigh-strength rare earth magnet\u003c\/strong\u003e and should be handled carefully to prevent pinch injuries or damage caused by magnets snapping together.\u003c\/p\u003e\n\u003cp data-start=\"3904\" data-end=\"4170\"\u003eMaximum holding force is achieved under ideal conditions using a clean, flat, thick mild steel surface with full face-to-face contact. Actual performance will vary depending on the steel thickness, air gap, surface finish, mounting method, and operating environment.\u003c\/p\u003e\n\u003cp data-start=\"4172\" data-end=\"4609\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eAlthough this magnet is rated for continuous operation at temperatures up to \u003cstrong data-start=\"4249\" data-end=\"4258\"\u003e120°C\u003c\/strong\u003e, exposure to higher temperatures may permanently reduce its magnetic strength. Keep away from children, pacemakers, implanted medical devices, sensitive electronic equipment, and magnetic storage media. Do not drill, machine, weld near, or strike the magnet, as neodymium is hard but brittle and may chip or fracture if subjected to excessive impact.\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":39727577792644,"sku":"23003D","price":14.89,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23008_1_364c947f-22c3-473a-ba2d-73bf687cb652.jpg?v=1752623769"},{"product_id":"neodymium-ring-magnet-od38-x-h10-x-id20-mm-n35","title":"Neodymium Ring Magnet OD38mm x H10mm | Hole 20mm N35","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-19\" 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-19\" data-turn-id-container=\"request-6a014628-0fc0-83ec-856d-20df78f9967d-19\" data-testid=\"conversation-turn-494\" 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=\"49901f01-8503-4012-b7cb-cbf34fecb48c\" 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=\"jxr5gm\" data-start=\"0\" data-end=\"65\" class=\"PDq2pG_selectionAnchorContainer\"\u003eNeodymium Ring Magnet – 38mm (OD) x 20mm (ID) x 10mm (H) | N35\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"67\" data-end=\"611\"\u003eThe \u003cstrong data-start=\"71\" data-end=\"160\"\u003eNeodymium Ring Magnet – 38mm Outer Diameter x 20mm Inner Diameter x 10mm Height | N35\u003c\/strong\u003e is a premium \u003cstrong data-start=\"174\" data-end=\"205\"\u003erare earth permanent magnet\u003c\/strong\u003e engineered for applications requiring powerful magnetic performance combined with a central mounting hole. Manufactured from high-quality \u003cstrong data-start=\"344\" data-end=\"386\"\u003eN35-grade Neodymium Iron Boron (NdFeB)\u003c\/strong\u003e, this precision ring magnet measures \u003cstrong data-start=\"424\" data-end=\"484\"\u003e38mm outer diameter, 20mm inner diameter, and 10mm thick\u003c\/strong\u003e, making it ideal for industrial machinery, magnetic couplings, automation equipment, sensors, and custom engineering projects.\u003c\/p\u003e\n\u003cp data-start=\"613\" data-end=\"1047\"\u003eThe large centre hole allows the magnet to be installed over shafts, pipes, bearings, threaded rods, or fasteners, making it a versatile solution for both rotating and fixed mechanical assemblies. It is \u003cstrong data-start=\"816\" data-end=\"838\"\u003eaxially magnetised\u003c\/strong\u003e, meaning the north and south poles are located on the two flat circular faces, providing maximum holding force and magnetic coupling when mounted against a ferrous steel surface or paired with another magnet.\u003c\/p\u003e\n\u003cp data-start=\"1049\" data-end=\"1250\"\u003eFinished with a durable \u003cstrong data-start=\"1073\" data-end=\"1116\"\u003enickel-copper-nickel (Ni-Cu-Ni) coating\u003c\/strong\u003e, this magnet offers excellent protection against corrosion, oxidation, and everyday wear while maintaining a smooth, polished finish.\u003c\/p\u003e\n\u003cp data-start=\"1252\" data-end=\"1482\"\u003eWhether you're designing industrial equipment, manufacturing magnetic assemblies, or building precision automation systems, the \u003cstrong data-start=\"1380\" data-end=\"1428\"\u003e38mm x 20mm x 10mm N35 Neodymium Ring Magnet\u003c\/strong\u003e delivers reliable, long-lasting magnetic performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1484\" data-end=\"1500\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1501\" data-end=\"2030\"\u003e\n\u003cli data-section-id=\"fca0n0\" data-start=\"1501\" data-end=\"1552\"\u003ePremium \u003cstrong data-start=\"1511\" data-end=\"1552\"\u003eN35-grade neodymium rare earth magnet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1oev5oh\" data-start=\"1553\" data-end=\"1626\"\u003eDimensions: \u003cstrong data-start=\"1567\" data-end=\"1626\"\u003e38mm outer diameter x 20mm inner diameter x 10mm height\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1elgap6\" data-start=\"1627\" data-end=\"1696\"\u003eLarge centre hole for shafts, bolts, pipes, and rotating assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"lqcj4s\" data-start=\"1697\" data-end=\"1764\"\u003e\n\u003cstrong data-start=\"1699\" data-end=\"1721\"\u003eAxially magnetised\u003c\/strong\u003e for maximum face-to-face magnetic strength\u003c\/li\u003e\n\u003cli data-section-id=\"1f2e8xx\" data-start=\"1765\" data-end=\"1829\"\u003eDurable \u003cstrong data-start=\"1775\" data-end=\"1829\"\u003enickel-copper-nickel (Ni-Cu-Ni) protective coating\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vjxxa3\" data-start=\"1830\" data-end=\"1876\"\u003eExcellent corrosion and oxidation resistance\u003c\/li\u003e\n\u003cli data-section-id=\"l09vj6\" data-start=\"1877\" data-end=\"1937\"\u003ePrecision manufactured for consistent magnetic performance\u003c\/li\u003e\n\u003cli data-section-id=\"nda4dc\" data-start=\"1938\" data-end=\"1970\"\u003eHigh-strength permanent magnet\u003c\/li\u003e\n\u003cli data-section-id=\"wcztks\" data-start=\"1971\" data-end=\"2030\"\u003eSuitable for industrial, commercial, and OEM applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"2032\" data-end=\"2055\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"2056\" data-end=\"2357\"\u003e\n\u003cli data-section-id=\"1379ml4\" data-start=\"2056\" data-end=\"2088\"\u003eElectric motors and generators\u003c\/li\u003e\n\u003cli data-section-id=\"1sa1yao\" data-start=\"2089\" data-end=\"2109\"\u003eMagnetic couplings\u003c\/li\u003e\n\u003cli data-section-id=\"j9gr6j\" data-start=\"2110\" data-end=\"2135\"\u003eRotary shaft assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"xiiqpm\" data-start=\"2136\" data-end=\"2169\"\u003eIndustrial automation equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1htpvbx\" data-start=\"2170\" data-end=\"2212\"\u003eMagnetic holding and positioning systems\u003c\/li\u003e\n\u003cli data-section-id=\"1dy44b4\" data-start=\"2213\" data-end=\"2237\"\u003eRobotics and machinery\u003c\/li\u003e\n\u003cli data-section-id=\"1t3t4w9\" data-start=\"2238\" data-end=\"2275\"\u003eScientific and laboratory equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1o1owck\" data-start=\"2276\" data-end=\"2303\"\u003eOEM product manufacturing\u003c\/li\u003e\n\u003cli data-section-id=\"126xvqk\" data-start=\"2304\" data-end=\"2328\"\u003eEngineering prototypes\u003c\/li\u003e\n\u003cli data-section-id=\"pnkbi5\" data-start=\"2329\" data-end=\"2357\"\u003eCustom magnetic assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qmgibc\" data-start=\"2359\" data-end=\"2372\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul data-start=\"2373\" data-end=\"2570\"\u003e\n\u003cli data-section-id=\"8wpcmh\" data-start=\"2373\" data-end=\"2395\"\u003eMechanical engineers\u003c\/li\u003e\n\u003cli data-section-id=\"1f40aq3\" data-start=\"2396\" data-end=\"2420\"\u003eAutomation specialists\u003c\/li\u003e\n\u003cli data-section-id=\"1f0kibv\" data-start=\"2421\" data-end=\"2447\"\u003eIndustrial manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"hqt4e9\" data-start=\"2448\" data-end=\"2477\"\u003eOEM equipment manufacturers\u003c\/li\u003e\n\u003cli data-section-id=\"1a3dn4l\" data-start=\"2478\" data-end=\"2497\"\u003eProduct designers\u003c\/li\u003e\n\u003cli data-section-id=\"11x5q1g\" data-start=\"2498\" data-end=\"2518\"\u003eMachinery builders\u003c\/li\u003e\n\u003cli data-section-id=\"tuv45w\" data-start=\"2519\" data-end=\"2542\"\u003eResearch laboratories\u003c\/li\u003e\n\u003cli data-section-id=\"14yh4j1\" data-start=\"2543\" data-end=\"2570\"\u003eMaintenance professionals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"oe2l1c\" data-start=\"2572\" data-end=\"2634\"\u003eWhy Choose a 38mm x 20mm x 10mm N35 Neodymium Ring Magnet?\u003c\/h3\u003e\n\u003cp data-start=\"2636\" data-end=\"2949\"\u003eThe \u003cstrong data-start=\"2640\" data-end=\"2688\"\u003e38mm x 20mm x 10mm N35 Neodymium Ring Magnet\u003c\/strong\u003e is designed for applications requiring \u003cstrong data-start=\"2728\" data-end=\"2788\"\u003estrong magnetic performance with a large central opening\u003c\/strong\u003e. The 20mm bore allows the magnet to fit around shafts, pipes, bearings, and mounting hardware while maintaining a powerful magnetic field around the outer ring.\u003c\/p\u003e\n\u003cp data-start=\"2951\" data-end=\"3344\"\u003eManufactured from premium \u003cstrong data-start=\"2977\" data-end=\"2994\"\u003eN35 neodymium\u003c\/strong\u003e, it delivers significantly greater magnetic strength than ferrite or ceramic ring magnets of similar dimensions. Its balanced size and robust construction make it ideal for magnetic couplings, industrial equipment, magnetic fixtures, positioning systems, automation machinery, and custom engineering projects where reliable performance is essential.\u003c\/p\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"3346\" data-end=\"3374\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"3375\" data-end=\"3698\"\u003e\n\u003cli data-section-id=\"12y85oy\" data-start=\"3375\" data-end=\"3419\"\u003e\n\u003cstrong data-start=\"3377\" data-end=\"3390\"\u003eMaterial:\u003c\/strong\u003e Neodymium Iron Boron (NdFeB)\u003c\/li\u003e\n\u003cli data-section-id=\"j4nl5n\" data-start=\"3420\" data-end=\"3443\"\u003e\n\u003cstrong data-start=\"3422\" data-end=\"3439\"\u003eMagnet Grade:\u003c\/strong\u003e N35\u003c\/li\u003e\n\u003cli data-section-id=\"138gwy7\" data-start=\"3444\" data-end=\"3461\"\u003e\n\u003cstrong data-start=\"3446\" data-end=\"3456\"\u003eShape:\u003c\/strong\u003e Ring\u003c\/li\u003e\n\u003cli data-section-id=\"1m6z4i5\" data-start=\"3462\" data-end=\"3493\"\u003e\n\u003cstrong data-start=\"3464\" data-end=\"3488\"\u003eOuter Diameter (OD):\u003c\/strong\u003e 38mm\u003c\/li\u003e\n\u003cli data-section-id=\"mi7abp\" data-start=\"3494\" data-end=\"3525\"\u003e\n\u003cstrong data-start=\"3496\" data-end=\"3520\"\u003eInner Diameter (ID):\u003c\/strong\u003e 20mm\u003c\/li\u003e\n\u003cli data-section-id=\"1d1irmj\" data-start=\"3526\" data-end=\"3556\"\u003e\n\u003cstrong data-start=\"3528\" data-end=\"3551\"\u003eHeight (Thickness):\u003c\/strong\u003e 10mm\u003c\/li\u003e\n\u003cli data-section-id=\"1qpvcgw\" data-start=\"3557\" data-end=\"3604\"\u003e\n\u003cstrong data-start=\"3559\" data-end=\"3577\"\u003eMagnetisation:\u003c\/strong\u003e Axial (through the height)\u003c\/li\u003e\n\u003cli data-section-id=\"1k697zb\" data-start=\"3605\" data-end=\"3651\"\u003e\n\u003cstrong data-start=\"3607\" data-end=\"3619\"\u003eCoating:\u003c\/strong\u003e Nickel-Copper-Nickel (Ni-Cu-Ni)\u003c\/li\u003e\n\u003cli data-section-id=\"48w55q\" data-start=\"3652\" data-end=\"3698\"\u003e\n\u003cstrong data-start=\"3654\" data-end=\"3670\"\u003eMagnet Type:\u003c\/strong\u003e Permanent Rare Earth Magnet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"rjcraw\" data-start=\"3700\" data-end=\"3715\"\u003ePlease Note\u003c\/h3\u003e\n\u003cp data-start=\"3717\" data-end=\"3994\"\u003eThis is a \u003cstrong data-start=\"3727\" data-end=\"3762\"\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, creating pinch hazards and potentially causing the magnet to chip or fracture if allowed to snap together.\u003c\/p\u003e\n\u003cp data-start=\"3996\" data-end=\"4276\"\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=\"4278\" data-end=\"4802\" 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 mechanical stress. For optimum performance and service life, avoid prolonged exposure to corrosive environments or temperatures exceeding the recommended operating range for standard \u003cstrong data-start=\"4776\" data-end=\"4783\"\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":40035117465732,"sku":"23002X","price":43.7,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/23002a_2_b434007a-3981-413e-8fc2-67c6299c0e0c.jpg?v=1752623737"},{"product_id":"ferrite-ring-magnet-od72-x-h15-x-id32-mm-y30bh-craft-magnet","title":"Ferrite Ring Magnet OD72 x H15 x ID32 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet weighs 233g, is uncoated, and has a pull force of 2.7kg. GradeY30BH. It is 15mm in height with an outside diameter of 72mm and an inside diameter of 32mm. Its direction of magnetization is through height.  \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFerrite loudspeaker magnets play a crucial role in the functioning of a loudspeaker by creating the magnetic field needed for converting electrical signals into sound. The ferrite ring magnet is a specialized magnetic component integral to the speaker's performance. Its role is to create a stable magnetic field that interacts with the voice coil, converting electrical signals into mechanical vibrations that produce sound. The specific dimensions and magnetic characteristics of this magnet make it highly efficient in this role. Its Y30BH grade indicates a high-quality ferrite material that provides strong and consistent magnetic fields necessary for high-fidelity audio reproduction. \u003c\/p\u003e\n\u003cp\u003eThe uncoated nature of the magnet helps in maintaining the raw magnetic properties without interference from coatings. The direction of magnetization through the height of the magnet ensures that the magnetic field is optimally aligned with the voice coil, enhancing the efficiency and clarity of the sound produced. The ferrite ring magnet can securely interact with the other components of the speaker without dislodging, even under high-frequency vibrations.  \u003c\/p\u003e\n\u003cp\u003eBeyond loudspeakers, this ferrite ring magnet's dimensions and properties make it useful in other applications requiring stable and precise magnetic fields. It can be used in magnetic resonance imaging (MRI) devices, sensors, and various electronic devices that rely on consistent magnetic performance. The lightweight and compact design of the make it a versatile component in modern electronics. \u003c\/p\u003e\n\u003cp\u003eFerrite magnets are durable and reliable, with a high resistance to demagnetization and corrosion, which makes this ring magnet suitable for long-term applications in both consumer electronics and industrial devices.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":40089649741956,"sku":"13020","price":15.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/13020_1_600x_fd9fa65a-ebd5-46ca-8a4c-19a800a7bba7.jpg?v=1752623729"},{"product_id":"ferrite-ring-magnet-od80-x-h15-x-id40-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD80 x H15 x ID40 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet weighs 269g, is uncoated, and has a pull force of 3.4 kg. GradeY30BH. It is 15mm in height with an outside diameter of 80mm and an inside diameter of 40mm. Its direction of magnetization is through height. \u003c\/em\u003e \u003c\/p\u003e\n\u003cp\u003eFerrite loudspeaker magnets play a crucial role in the functioning of a loudspeaker by creating a magnetic field for converting electrical signals into sound. The ferrite ring magnet is a specialized magnetic component integral to the speaker's performance. Its role is to create a stable magnetic field that interacts with the voice coil, converting electrical signals into mechanical vibrations that produce sound. The specific dimensions and magnetic characteristics of this magnet make it highly efficient in this role. Its Y30BH grade indicates a high-quality ferrite material that provides strong and consistent magnetic fields necessary for high-fidelity audio reproduction. \u003c\/p\u003e\n\u003cp\u003eThe uncoated nature of the magnet helps in maintaining the raw magnetic properties without interference from coatings. The direction of magnetisation through the height of the magnet ensures that the magnetic field is optimally aligned with the voice coil, enhancing the efficiency and clarity of the sound produced. The ferrite ring magnet can securely interact with the other components of the speaker without dislodging, even under high-frequency vibrations.  \u003c\/p\u003e\n\u003cp\u003eBeyond loudspeakers, this ferrite ring magnet's dimensions and properties make it useful in other applications requiring stable and precise magnetic fields. It can be used in magnetic resonance imaging (MRI) devices, sensors, and various electronic devices that rely on consistent magnetic performance. The lightweight and compact design of the make it a versatile component in modern electronics. \u003c\/p\u003e\n\u003cp\u003eFerrite magnets are durable and reliable, with a high resistance to demagnetization and corrosion, which makes this ring magnet suitable for long-term applications in both consumer electronics and industrial devices. \u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":40097868677252,"sku":"13019","price":18.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/products\/13020_1_600x_6ac3ee11-1857-443f-a4a5-74bfe845b077.jpg?v=1752623728"},{"product_id":"neodymium-ring-magnet-od72-x-h13-x-id32-5-mm-n42","title":"Neodymium Ring Magnet  OD72mm x H13mm | Hole 32.5mm N42","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 72mm OD x 13mm H | 32.5mm Hole | N42\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 – 72mm Outer Diameter x 13mm Height with a 32.5mm Centre Hole | N42\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 performance and a substantial central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42 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\u003e72mm outer diameter, 32.5mm inner hole diameter and 13mm 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\u003e32.5mm 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\u003eN42 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 N42 neodymium ring magnet offers a versatile solution for demanding magnetic projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e72mm neodymium ring magnet, N42 rare earth ring magnet, 72mm OD magnet with 32.5mm 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 72mm\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 32.5mm\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 13mm\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 N42\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 72mm outer diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGenerous 32.5mm central through-hole\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSubstantial 13mm 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 N42 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\u003eN42 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\u003eN42 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 N42 Mean?\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\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\u003eN42 does not mean this magnet has a 42kg 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 72mm Diameter with 13mm Thickness\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe combination of a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e72mm outer diameter and 13mm 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\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\u003e13mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a considerably deeper profile than thin magnetic rings, making the product suitable for applications where this additional 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\u003e32.5mm Centre Hole for Assembly Integration\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e32.5mm 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 N42 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 N42 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 32.5mm 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 13mm 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\u003eN42 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\u003eN42 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 N42 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 – 72mm OD x 13mm H | 32.5mm Hole | N42\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\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\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\u003e72mm\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\u003e32.5mm\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\u003e32.5mm\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\u003e13mm\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\u003e72mm OD x 32.5mm ID x 13mm 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\u003e72mm outer diameter, 32.5mm centre hole diameter and 13mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N42 mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42 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 N42 mean the magnet has a 42kg pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. N42 identifies the magnetic grade and does not indicate a 42kg 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 32.5mm centre hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 32.5mm 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 32.5mm 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\u003eN42 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 – 72mm OD x 13mm H | 32.5mm Hole | N42\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42 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 72mm\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 32.5mm\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 13mm\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\u003eN42 designation identifies the magnetic material grade and does not mean this magnet has a 42kg 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":41530658259076,"sku":"23001","price":152.73,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/23001_600x_a516cf56-ba50-42e4-9337-699c4efbaffe.jpg?v=1752623537"},{"product_id":"copy-of-neodymium-ring-magnet-od13-x-h5-x-id2-mm-n35","title":"Neodymium Ring Magnet OD50mm x H10mm | Hole 15mm | N38 | Diametrically Magnetised","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":41546673619076,"sku":"23001B","price":133.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/23001b_3_600x_637222e0-14c0-4d0b-a531-e81955d0471e.jpg?v=1752623529"},{"product_id":"ferrite-ring-magnet-od145-x-h20-x-id75-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD145 x H20 x ID75 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet weighs 1149g and has a pull force of 8.1 kg. GradeY30BH. It is uncoated and has an outside diameter of 145mm, and inside diameter of 75mm and is 20mm thick. Its direction of magnetization is through height.  \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis ferrite loudspeaker magnet is one of our 'big boys', and it plays an important role in the realm of sound. Ferrite ring magnets are a crucial component in the functioning of a loudspeaker by creating a magnetic field for converting electrical signals into sound. The ferrite ring magnet is a specialized magnet, integral to the speaker's performance. Its role is to create a stable magnetic field that interacts with the voice coil, converting electrical signals into mechanical vibrations that produce sound. The specific dimensions and magnetic characteristics of this magnet, one of our largest, make it powerful and highly efficient in this role. Its Y30BH grade indicates a high-quality ferrite material that provides strong and consistent magnetic fields necessary for high-fidelity audio reproduction. \u003c\/p\u003e\n\u003cp\u003eThe uncoated nature of the magnet helps in maintaining the raw magnetic properties without interference from coatings. The direction of magnetisation through the height of the magnet means the magnetic field is aligned with the voice coil, which means great clarity in the sound produced. The ferrite ring magnet can securely interact with the other components of the speaker without dislodging, even under high-frequency vibrations.  \u003c\/p\u003e\n\u003cp\u003eBeyond loudspeakers, this ferrite ring magnet's dimensions and properties make it useful in other applications requiring stable and precise magnetic fields. It can be used in magnetic resonance imaging (MRI) devices, sensors and various electronic devices that rely on consistent magnetic performance. Ferrite magnets are durable and reliable, with a high resistance to de-magnetization and corrosion, which makes this ring magnet suitable for long-term applications in both consumer products and industrial devices.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560752980100,"sku":"13010","price":44.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_cb641b70-6609-49df-b25c-446eab4332bd.jpg?v=1752623524"},{"product_id":"ferrite-ring-magnet-od100-x-h17-x-id60-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD100 x H17 x ID60 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet weighs 406g, is uncoated, and has a pull force of 3.9 kg. GradeY30BH. It has an outside diameter of 100mm, an inside diameter of 60mm, and is 17mm thick. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFerrite loudspeaker magnets play a crucial role in the functioning of a loudspeaker by creating a magnetic field for converting electrical signals into sound. The ferrite ring magnet is like the secret ingredient in the loudspeaker, a specialized magnetic component integral to the speaker's performance. Its role is to create a stable magnetic field that interacts with the voice coil, converting electrical signals into mechanical vibrations that produce sound. The specific dimensions and magnetic characteristics of this magnet make it highly efficient in this role. It is one of our larger loudspeaker magnets. Its Y30BH grade indicates a high-quality ferrite material that provides strong and consistent magnetic fields necessary for high-fidelity audio reproduction. \u003c\/p\u003e\n\u003cp\u003eThe uncoated nature of the magnet helps in maintaining the raw magnetic properties without interference from coatings. The direction of magnetization through the height of the magnet ensures that the magnetic field is optimally aligned with the voice coil, enhancing the efficiency and clarity of the sound produced. The ferrite ring magnet can securely interact with the other components of the speaker without dislodging, even under high-frequency vibrations.  \u003c\/p\u003e\n\u003cp\u003eBeyond loudspeakers, this ferrite ring magnet's dimensions and properties make it useful in other applications requiring stable and precise magnetic fields. It can be used in magnetic resonance imaging (MRI) devices, sensors, and various electronic devices that rely on consistent magnetic performance. Ferrite magnets are durable and reliable, with a high resistance to de-magnetization and corrosion, which makes this ring magnet suitable for long-term applications in both consumer products and industrial devices.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560755536004,"sku":"13015","price":35.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_4c047ed6-1864-4d6e-96cb-34bd29beaeb2.jpg?v=1752623523"},{"product_id":"ferrite-ring-magnet-od60-x-h13-x-id24-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD60 x H13 x ID24 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet weighs 147g, is uncoated, and has a pull force of 2.7kg. GradeY30BH. It has an outside diameter of 60mm, an inside diameter of 24mm, and is 13mm thick. Its direction of magnetization is through thickness.  \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are vital components in loudspeakers and play a crucial role in transforming electrical signals into the sound we hear. The ferrite ring magnet delivers strength and stability for high-performance loudspeakers. \u003c\/p\u003e\n\u003cp\u003eIn a loudspeaker, the ferrite ring magnet generates a stable and strong magnetic field within the gap where the voice coil is situated. This ferrite magnet is magnetized through its height, ensuring an optimal alignment of the magnetic field. When an audio signal, which is an alternating electrical current, flows through the voice coil, it creates a varying magnetic field around the coil. This varying magnetic field interacts with the static magnetic field produced by the ferrite ring magnet. \u003c\/p\u003e\n\u003cp\u003eThe interaction between these magnetic fields causes the voice coil to move back and forth. As the voice coil is attached to the speaker cone, this movement drives the cone to push and pull the surrounding air, creating sound waves. The frequency and intensity of these sound waves correspond to the electrical signal, enabling the loudspeaker to reproduce the original audio input accurately. \u003c\/p\u003e\n\u003cp\u003eThe grade of this ferrite magnet indicates high-quality material that provides robust and consistent magnetic properties. It is uncoated and is suitable for environments where it is encapsulated within the loudspeaker assembly, eliminating the need for an additional protective layer and maintaining its raw magnetic performance. \u003c\/p\u003e\n\u003cp\u003eThe dimensions of the magnet are designed to fit precisely within the speaker structure, which means efficient magnetic interaction and minimal energy loss. \u003c\/p\u003e\n\u003cp\u003eFerrite magnets are used in loudspeakers because of their cost-effectiveness, durability, and temperature stability. They maintain their magnetic properties over a wide range of temperatures and are resistant to demagnetization and corrosion. This durability ensures that the loudspeaker can deliver consistent performance over time, even in demanding conditions. This magnet's specific properties and dimensions make it a reliable and effective component in delivering high-quality audio experiences.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560758321284,"sku":"13030","price":13.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_b0672e1b-df6f-4150-a6fe-d22baee1042f.jpg?v=1752623522"},{"product_id":"ferrite-ring-magnet-od55-x-h12-x-id24-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD55 x H12 x ID24 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet is uncoated and weighs 110g with a pull force of 2.1kg. Grade Y30BH. It has an outside diameter of 55mm, inside diameter of 24mm and is 12mm thick. Its direction of magnetization is through height.\u003c\/em\u003e   \u003c\/p\u003e\n\u003cp\u003eThis ferrite ring magnet is a critical component in the functioning of loudspeakers. In loudspeakers, ferrite ring magnets are essential for converting electrical signals into sound. The magnet generates a stable magnetic field in the gap where the voice coil is located. The voice coil, when an audio signal passes through it, creates a varying magnetic field around itself. This interaction between the voice coil's varying magnetic field and the ferrite magnet's permanent magnetic field causes the voice coil to move. This movement drives the attached speaker cone back and forth, pushing and pulling the air to produce sound waves that match the original audio signal. \u003c\/p\u003e\n\u003cp\u003eThe dimensions of this magnet are precisely designed to fit within the speaker structure, delivering efficient magnetic interaction with minimal energy loss. Its pull force of 2.1kg means it can securely interact with the voice coil without dislodging, even under high-frequency vibrations. The 12mm height of the magnet and its direction of magnetisation gives optimal magnetic flux and enhances the loudspeaker's efficiency and sound quality. \u003c\/p\u003e\n\u003cp\u003eThe Y30BH grade of the magnet means it has a high performance and stability, essential for maintaining sound quality over time. Ferrite magnets are known for their durability and resistance to de-magnetization and corrosion, which is crucial for loudspeakers used in challenging environments.  \u003c\/p\u003e\n\u003cp\u003eIn addition to its primary use in loudspeakers, this magnet's properties make it suitable for other applications requiring stable and strong magnetic fields. These include various types of sensors, motors and other electronic devices where consistent magnetic performance is needed. \u003c\/p\u003e\n\u003cp\u003eThis ferrite ring magnet is an indispensable component for loudspeakers. Its strong pull force, high-quality material and specific dimensions provides reliable and efficient magnetic performance which is crucial for high-fidelity sound reproduction.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560761696388,"sku":"13035","price":11.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_a2dd9cd5-a09e-4469-b64b-6c99d875d447.jpg?v=1752623521"},{"product_id":"ferrite-ring-magnet-od53-x-h9-x-id24-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD53 x H9 x ID24 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis uncoated ferrite ring magnet weighs 75g and has a pull force of 1.4kg. GradeY30BH. It has an outside diameter of 53mm, inside diameter of 24mm and is 9mm thick. Its direction of magnetization is through height\u003c\/em\u003e.  \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are vital components in loudspeakers and play a crucial role in transforming electrical signals into the sound we hear. The ferrite ring magnet delivers strength and stability for high-performance loudspeakers. \u003c\/p\u003e\n\u003cp\u003eIn a loudspeaker, the ferrite ring magnet generates a stable and strong magnetic field within the gap where the voice coil is situated. This ferrite magnet is magnetized through its height, ensuring an optimal alignment of the magnetic field. When an audio signal, which is an alternating electrical current, flows through the voice coil, it creates a varying magnetic field around the coil. This varying magnetic field interacts with the static magnetic field produced by the ferrite ring magnet. \u003c\/p\u003e\n\u003cp\u003eThe interaction between these magnetic fields causes the voice coil to move back and forth. As the voice coil is attached to the speaker cone, this movement drives the cone to push and pull the surrounding air, creating sound waves. The frequency and intensity of these sound waves correspond to the electrical signal, enabling the loudspeaker to reproduce the original audio input accurately. \u003c\/p\u003e\n\u003cp\u003eThe Y30BH grade of this ferrite magnet indicates high-quality material that provides robust and consistent magnetic properties. It is uncoated and is suitable for environments where it is encapsulated within the loudspeaker assembly, eliminating the need for an additional protective layer and maintaining its raw magnetic performance. \u003c\/p\u003e\n\u003cp\u003eThe dimensions of the magnet are designed to fit precisely within the speaker structure, which means efficient magnetic interaction and minimal energy loss. \u003c\/p\u003e\n\u003cp\u003eFerrite magnets are used in loudspeakers because of their cost-effectiveness, durability and temperature stability. They maintain their magnetic properties over a wide range of temperatures and are resistant to demagnetization and corrosion. This durability ensures that the loudspeaker can deliver consistent performance over time, even in demanding conditions. \u003c\/p\u003e\n\u003cp\u003eThis magnet's specific properties and dimensions make it a reliable and effective component in delivering high-quality audio experiences. \u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560768249988,"sku":"13040","price":8.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_8a1cf018-8d8d-4f1e-b3a9-2b6f898d4adb.jpg?v=1752623520"},{"product_id":"ferrite-ring-magnet-od45-x-h9-x-id22-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD45 x H9 x ID22 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet is uncoated and weighs 52g, with a pull force of 1.2kg. GradeY30BH. It has an outside diameter of 45mm, an inside diameter of 22mm and is 9mm thick. Its direction of magnetization is through height.  \u003c\/em\u003e \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets may often go unnoticed, but their role in the world of loudspeakers is indispensable. These magnets provide the foundational strength and stability that enable loudspeakers to transform electrical signals into the vibrant, detailed sound that enriches our lives. As technology advances, ferrite ring magnets are at the forefront of audio innovation as we demand higher quality audio experiences. \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets play a pivotal role in delivering the rich, immersive sound that we expect from our high-tech audio devices. Ferrite ring magnets stand out as indispensable elements, crucial for transforming electrical signals into the dynamic audio experiences we enjoy. These unassuming rings are the backbone of high-performance loudspeakers, providing the strength and stability needed to produce clear, powerful sound. \u003c\/p\u003e\n\u003cp\u003eAt the heart of every loudspeaker is a complex interplay of electrical and mechanical components working in harmony to create sound. When an electrical signal travels through the loudspeaker’s voice coil, it generates a magnetic field. This magnetic field interacts with the permanent magnet, causing the voice coil to move back and forth rapidly. This motion drives the speaker cone, which pushes air and produces sound waves. \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are the permanent magnets in this setup. Their primary function is to create a stable and strong magnetic field that the voice coil can interact with. The stability and strength of the magnetic field directly influence the efficiency and clarity of sound reproduction. \u003c\/p\u003e\n\u003cp\u003eFerrite magnets, also known as ceramic magnets, are made from a mixture of iron oxide and barium or strontium carbonate. This combination gives ferrite magnets several advantages over other types of magnets, such as neodymium or alnico, particularly in the context of loudspeakers. Some of the advantages of ferrite ring magnets are cost-effectiveness, thermal stability and durability.  \u003c\/p\u003e\n\u003cp\u003eThe strength of the magnetic field generated by ferrite ring magnets is crucial for high-performance loudspeakers. A strong magnetic field allows for greater control over the voice coil's movement, leading to more precise sound reproduction. This precision translates into clearer highs, richer mid ranges and more powerful bass, enhancing the overall listening experience. \u003c\/p\u003e\n\u003cp\u003eThe stability of ferrite magnets ensures that the sound quality remains consistent over time. This reliability is particularly important for professional audio equipment and high-fidelity home audio systems, where any degradation in sound quality can be immediately noticeable. \u003c\/p\u003e\n\u003cp\u003eWhile ferrite magnets have been a staple in loudspeaker design for decades, ongoing research and development continue to refine their performance. Advances in materials science and manufacturing techniques are leading to the creation of ferrite magnets with even greater magnetic strength and stability. These innovations promise to push the boundaries of what high-performance loudspeakers can achieve, delivering even more immersive and accurate soundscapes.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560773558404,"sku":"13050","price":7.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_c4b5c8c6-644c-4087-99e6-9f2d4cf40223.jpg?v=1752623519"},{"product_id":"ferrite-ring-magnet-od32-x-h7-x-id19-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD32 x H7 x ID19 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet is uncoated and weighs 17g and has a pull force of 0.5kg. GradeY30BH. It is 32mm in outside diameter, 19mm inside diameter and has a thickness of 7mm. Its direction of magnetization is through height.  \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are a vital component in the design and function of loudspeakers. The unique properties of ferrite ring magnets and their affordability make them an ideal choice for manufacturers looking to create high-quality audio equipment. These magnets are composed primarily of iron oxide and ceramic materials and are known for their durability and excellent magnetic properties, crucial for the performance of loudspeakers. \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are vital in the performance of a loudspeaker. At the heart of the loudspeaker, the magnet interacts with the voice coil, a component made of wire wrapped around a cylinder. When an electric current passes through the voice coil, it generates a magnetic field that interacts with the static magnetic field of the ferrite ring magnet. This interaction causes the voice coil and the attached diaphragm to move, producing sound waves that we hear as music or speech. \u003c\/p\u003e\n\u003cp\u003eOne of the primary advantages of ferrite ring magnets is their ability to maintain a consistent magnetic field over time. Unlike other types of magnets that may lose their magnetism when exposed to heat or vibration, ferrite magnets are incredibly stable. The stability of ferrite magnets means the loudspeaker will perform reliably over many years, delivering consistent sound quality without degradation. \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are also cost-effective. The raw materials used to produce these magnets are abundant and relatively inexpensive, making them a popular choice for mass production. The manufacturing process of ferrite ring magnets involves pressing and sintering a mixture of iron oxide and ceramic material. This process results in a hard, brittle material that is resistant to demagnetization. The magnets can be produced in various shapes and sizes, but the ring shape is ideal for loudspeakers. It allows for a compact design that can easily fit into the speaker's structure, maximising the efficiency of the magnetic field. \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are environmentally friendly, they do not contain any rare or toxic elements and they are easier to recycle compared to other types of magnets. This eco-friendly characteristic is becoming increasingly important as the world moves towards more sustainable manufacturing practices. \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets deliver excellent audio performance. Their strong and stable magnetic fields ensure that the voice coil moves precisely in response to the audio signal, resulting in sound that is true to the original recording. This precision is especially important for high-fidelity audio systems where even minor distortions can be noticeable. \u003c\/p\u003e\n\u003cp\u003eThe combination of performance, durability, cost-effectiveness, and environmental benefits makes ferrite ring magnets a vital component in the design and manufacture of loudspeakers. \u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560783552644,"sku":"13060","price":6.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_ed806bc1-c84a-4ec5-b699-bcb3ff126922.jpg?v=1752623518"},{"product_id":"ferrite-ring-magnet-od30-x-h5-x-id20-5-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD30 x H5 x ID20.5 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis ferrite ring magnet is uncoated and weighs 9g. It has a pull force of 0.45kg. GradeY30BH. It has an outside diameter of 30mm, an inside diameter of 20.5mm, and is 5mm thick.\u003c\/em\u003e  \u003c\/p\u003e\n\u003cp\u003eFerrite ring magnets are a specialized magnetic component that play an important role whenever you are listening to music being played out of a loudspeaker. In fact, any sound transmitted from a loudspeaker relies on ferrite ring magnets. Ferrite loudspeaker magnets play a crucial role in the functioning of a loudspeaker by creating the magnetic field needed for converting electrical signals into sound. The ferrite ring magnet is integral to the speaker's performance. Its role is to create a stable magnetic field that interacts with the voice coil, converting electrical signals into mechanical vibrations that produce sound. The specific dimensions and magnetic characteristics of this magnet make it highly efficient in this role. Its Y30BH grade indicates a high-quality ferrite material that provides strong and consistent magnetic fields necessary for high-fidelity audio reproduction. \u003c\/p\u003e\n\u003cp\u003eThis magnet is uncoated, which helps in maintaining the raw magnetic properties without interference from coatings. The direction of magnetization through the height of the magnet ensures that the magnetic field is optimally aligned with the voice coil, enhancing the efficiency and clarity of the sound produced. The ferrite ring magnet can securely interact with the other components of the speaker without dislodging, even under high-frequency vibrations.  \u003c\/p\u003e\n\u003cp\u003eBeyond loudspeakers, this ferrite ring magnet's dimensions and properties make it useful in other applications requiring stable and precise magnetic fields. It can be used in magnetic resonance imaging (MRI) devices, sensors, and various electronic devices that rely on consistent magnetic performance. The lightweight and compact design of the make it a versatile component in modern electronics. \u003c\/p\u003e\n\u003cp\u003eFerrite magnets are durable and reliable, with a high resistance to demagnetization and corrosion, which makes this ring magnet suitable for long-term applications in both consumer electronics and industrial devices.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560786141316,"sku":"13061","price":6.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_c7a1d41e-f5ce-4a4c-9133-f8d0c67fb7e5.jpg?v=1752623517"},{"product_id":"ferrite-ring-magnet-od27-x-h5-x-id13-mm-y30bh-loudspeaker-magnet","title":"Ferrite Ring Magnet OD27 x H5 x ID13 mm Y30BH | Loudspeaker Magnet","description":"\u003cp\u003e\u003cem\u003eThis uncoated ferrite ring magnet weighs 10g and has a pull force of 0.4kg. GradeY30BH. It has an outside diameter of 27mm, inside diameter of 13mm and is 5mm thick. Its direction of magnetization is through height. \u003c\/em\u003e \u003c\/p\u003e\n\u003cp\u003eThis ferrite magnet plays a crucial role in the functioning of a loudspeaker by creating the magnetic field needed for converting electrical signals into sound. The ferrite ring magnet is a specialized magnetic component integral to the speaker's performance. Its role is to create a stable magnetic field that interacts with the voice coil, converting electrical signals into mechanical vibrations that produce sound. The specific dimensions and magnetic characteristics of this magnet make it highly efficient in this role. Its Y30BH grade indicates a high-quality ferrite material that provides strong and consistent magnetic fields necessary for high-fidelity audio reproduction. \u003c\/p\u003e\n\u003cp\u003eThis magnet is uncoated, which helps in maintaining the raw magnetic properties without interference from coatings. The direction of magnetization through the height of the magnet ensures that the magnetic field is optimally aligned with the voice coil, enhancing the efficiency and clarity of the sound produced. The ferrite ring magnet can securely interact with the other components of the speaker without dislodging, even under high-frequency vibrations.  \u003c\/p\u003e\n\u003cp\u003eThis ferrite ring magnet's dimensions and properties also make it useful in other applications requiring stable and precise magnetic fields. It can be used in magnetic resonance imaging (MRI) devices, sensors and a range of products that rely on consistent magnetic performance. The lightweight and compact design of the make it a versatile component in modern equipment. \u003c\/p\u003e\n\u003cp\u003eFerrite magnets are durable and reliable, with a high resistance to de-magnetization and corrosion, which makes this ring magnet suitable for long-term applications in both consumer and commercial devices. \u003c\/p\u003e\n\u003c!----\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":41560789287044,"sku":"13080","price":6.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13020_1_600x_17e449ce-2a1f-4834-aaed-b80f4a5d19ce.jpg?v=1752623516"},{"product_id":"neodymium-ring-magnet-od70-x-h3-x-id14-mm-n42","title":"Neodymium Ring Magnet  OD70mm x H3mm | Hole 14 mm N42","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 70mm OD x 3mm H | 14mm Hole | N42\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 – 70mm Outer Diameter x 3mm Height with a 14mm Centre Hole | N42\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a powerful, low-profile rare earth magnet designed for industrial, engineering and custom magnetic applications requiring a large circular magnetic surface with a central mounting opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this permanent ring magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e70mm outer diameter, 14mm inner hole diameter and 3mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Its wide, flat design provides a substantial annular magnetic surface while maintaining a slim profile, making it suitable for integration into mechanical assemblies, magnetic holding systems, positioning devices and custom equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e14mm central hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides clearance for suitable shafts, rods, fasteners or other components, depending on the installation requirements. This allows the magnet to be incorporated into assemblies where a central opening is required without drilling or modifying the brittle magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN42 neodymium magnets offer high magnetic energy density compared with conventional ferrite magnets, delivering strong magnetic performance relative to their size. Their permanent magnetic properties make them useful for applications requiring continuous magnetic attraction without electricity or batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eengineering, manufacturing, magnetic positioning, industrial equipment, product development, magnetic retention and OEM assemblies\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this large-diameter neodymium ring magnet offers a versatile solution for specialised magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e70mm neodymium ring magnet, N42 rare earth ring magnet, 70mm OD magnet with 14mm hole, flat neodymium washer magnet or circular NdFeB ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is designed for applications where magnetic performance and a low-profile ring geometry are important.\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 70mm\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 14mm\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 3mm\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 N42\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 Flat 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 70mm outer diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCentral 14mm through-hole\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSlim 3mm profile\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 custom magnetic assemblies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUseful for industrial and engineering applications\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\u003ePermanent magnetic operation without external power\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\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eCommon Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis N42 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 concepts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCircular alignment systems\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\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eApplication suitability depends on the magnetisation direction, installation geometry, magnetic circuit and required holding performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN42 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\u003eN42 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 traditional permanent magnet materials, allowing strong magnetic fields to be generated from relatively compact components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat Does N42 Mean?\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\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\u003eN42 does not mean this magnet has a 42kg 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 70mm Diameter with Slim 3mm Profile\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe combination of a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e70mm outer diameter and 3mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e creates a wide, flat ring magnet.\u003c\/span\u003e\u003c\/p\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 broad circular magnetic component is required\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInstallation space is limited in height\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA low-profile magnetic assembly is preferred\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA central opening is needed\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eA ring-shaped magnetic component must fit within a larger mechanism\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet's relatively thin cross-section should be considered during installation, as neodymium magnets are brittle and may fracture under bending, impact or uneven mechanical pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e14mm Centre Hole for Assembly Integration\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e14mm diameter centre hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides an 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\u003eBolts\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 mounting hardware\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 or shafts, 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\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\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 N42 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 N42 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 14mm 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\u003eThis ring magnet has a relatively thin \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3mm profile\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making careful handling especially important.\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\u003eBending or flexing\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\u003eN42 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\u003eN42 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 N42 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 – 70mm OD x 3mm H | 14mm Hole | N42\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\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\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\u003e70mm\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\u003e14mm\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\u003e14mm\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\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\u003e70mm OD x 14mm ID x 3mm 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 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\u003eThin Profile:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 3mm thickness requires careful handling. Avoid bending, uneven loading or concentrated mechanical pressure.\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\u003e70mm outer diameter, 14mm centre hole diameter and 3mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N42 mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN42 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 N42 mean the magnet has a 42kg pull force?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNo. N42 identifies the magnetic grade and does not indicate a 42kg 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 bolt through the 14mm centre hole?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 14mm opening may accommodate compatible mounting hardware, but the installation must avoid excessive pressure on the brittle magnet. Confirm clearances and use an appropriate mounting arrangement.\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 14mm 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\u003eN42 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 – 70mm OD x 3mm H | 14mm Hole | N42\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN42 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 70mm\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 14mm\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 3mm\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\u003eN42 designation identifies the magnetic material grade and does not mean this magnet has a 42kg 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. The thin 3mm profile requires careful handling to avoid 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":41577917546628,"sku":"23001A","price":78.83,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/23001a_600x_1.jpg?v=1752623502"},{"product_id":"alnico-ring-magnet-od31mm-x-id9-5mm-x-h19mm-alnico5","title":"Alnico Ring Magnet - 31mm (OD) x 9.5mm (ID) x 19mm (H)","description":"\u003cp\u003eThis \u003cstrong\u003eAlNiCo Ring Magnet\u003c\/strong\u003e is engineered for consistent performance and durability in demanding applications. Crafted from \u003cstrong\u003eAlNiCo 5\u003c\/strong\u003e, a premium-grade material, it offers exceptional magnetic stability across a broad temperature range. With a compact \u003cstrong\u003e31mm outer diameter (OD)\u003c\/strong\u003e, \u003cstrong\u003e9.5mm inner diameter (ID)\u003c\/strong\u003e, and \u003cstrong\u003e19mm height (H)\u003c\/strong\u003e, this magnet is uncoated and designed for precision. This product is identified by product code: AL002.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eKey Features\u003c\/strong\u003e:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-quality \u003cstrong\u003eAlNiCo 5 cast\u003c\/strong\u003e, known for its excellent temperature stability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxially Magnetised\u003c\/strong\u003e: Magnetic poles are located on the flat ends, making it ideal for applications requiring axial alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUncoated Finish\u003c\/strong\u003e: Provides a raw, durable surface suited for industrial and technical applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Dimensions\u003c\/strong\u003e: Perfect for motors, sensors, instruments, or other specialised applications requiring precise tolerances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis magnet is uncoated, maintaining its natural finish for users who require authentic, rugged materials. Its reliable magnetic performance and resistance to demagnetisation make it suitable for various industrial, scientific, and engineering applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: Handle with care to avoid chipping, as the uncoated surface is more exposed.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":44597893857412,"sku":"AL002","price":29.36,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/7.png?v=1752623397"},{"product_id":"ferrite-ring-magnet-53mm-od-x-24mm-id-x-9mm-h","title":"Ferrite Ring Magnet - 50mm (OD) x 23mm (ID) x 44mm (H)","description":"\u003cp\u003e\u003cstrong\u003eFerrite Ring Magnet - 50mm (OD) x 23mm (ID) x 44mm (H)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis Ferrite Ring Magnet combines strength, durability, and versatility, making it an excellent choice for a range of industrial, scientific, and DIY applications. Its ring design provides flexibility for mounting or integration into various systems. This product is identified by product code: 13041.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Specifications:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter (OD):\u003c\/strong\u003e 50mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter (ID):\u003c\/strong\u003e 23mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight (H):\u003c\/strong\u003e 44mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality Ferrite (Ceramic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Grade:\u003c\/strong\u003e Y30\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Strength:\u003c\/strong\u003e Delivers reliable magnetic force, ideal for demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Resistant to corrosion, temperature variations, and demagnetisation for long-lasting use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Design:\u003c\/strong\u003e The central hole supports easy assembly into fixtures, tools, or custom setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective Magnetism:\u003c\/strong\u003e Ferrite magnets offer a budget-friendly solution without compromising on performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMotors, generators, and other electrical devices\u003c\/li\u003e\n\u003cli\u003eLoudspeakers and sound systems\u003c\/li\u003e\n\u003cli\u003eMagnetic filters and separators in industrial settings\u003c\/li\u003e\n\u003cli\u003ePrototyping and engineering projects\u003c\/li\u003e\n\u003cli\u003eScientific and educational experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOpt for the \u003cstrong\u003eFerrite Ring Magnet - 50mm x 23mm x 44mm\u003c\/strong\u003e to meet your magnetic needs efficiently and affordably. Its reliable performance and versatile design make it a practical addition to any project.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Handle with care to avoid chipping or cracking, as ferrite magnets are naturally brittle.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":44636477358212,"sku":"13041","price":28.73,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/13041_3.png?v=1752623368"},{"product_id":"neodymium-ring-magnet-40mm-od-x-16mm-id-x-10mm-h-n52","title":"Neodymium Ring Magnet - 40mm (OD) x 16mm (ID) x 10mm (H) | N52","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eNeodymium Ring Magnet – 40mm (OD) x 16mm (ID) x 10mm (H) | N52\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 – 40mm Outside Diameter x 16mm Inside Diameter x 10mm Height | N52\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-strength Rare Earth permanent magnet designed for industrial, engineering, manufacturing and custom magnetic applications requiring powerful magnetic performance in a ring-shaped configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eManufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 grade Neodymium Iron Boron (NdFeB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this magnet belongs to one of the highest commonly available Neodymium magnetic grades, offering exceptional magnetic energy density for its size.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e40mm outside diameter (OD), 16mm inside diameter (ID) and 10mm height (H)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this powerful ring magnet combines a substantial magnetic body with a central through-hole, making it suitable for a wide range of magnetic assemblies and specialised applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e16mm hole\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides clearance for compatible shafts, rods, bolts, mounting components and other mechanical assemblies, allowing the magnet to be incorporated into designs where a solid disc magnet would not be suitable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith its \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 magnetic grade\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this Neodymium ring magnet provides high magnetic potential for applications requiring strong magnetic attraction, magnetic coupling, positioning or field generation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are widely recognised for their exceptional strength-to-size ratio, making them popular in industrial equipment, engineering projects, magnetic fixtures, motors, sensors, product development and manufacturing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ring-shaped design offers additional versatility by allowing components to pass through the centre of the magnet while maintaining a substantial volume of magnetic material around the opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm thickness\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a relatively substantial magnetic body compared with thinner ring magnets, making this product relevant to applications requiring a robust magnetic geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on the magnetisation direction and surrounding magnetic circuit, N52 ring magnets may be incorporated into magnetic coupling systems, mechanical assemblies, holding devices, sensor systems and other specialised equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet's exact field distribution depends on its magnetisation direction, which has not been specified in the supplied product information.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN52 Neodymium magnets are permanent magnets and do not require batteries, wiring or electrical power to generate their magnetic field.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTheir powerful attraction makes them useful for many engineering applications, but also requires careful handling because Neodymium magnets are inherently brittle and can chip, crack or cause pinch injuries if allowed to collide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso known as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 Neodymium ring magnet, 40mm Rare Earth ring magnet, 40mm OD magnetic ring, 16mm bore Neodymium magnet, NdFeB annular magnet or high-strength permanent ring magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, this product is suitable for a broad range of industrial and technical applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you're developing a custom magnetic assembly, manufacturing equipment, building a magnetic coupling or designing a specialised engineering project, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFrenergy Magnets Neodymium Ring Magnet – 40mm OD x 16mm ID x 10mm H | N52\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides powerful Rare Earth magnetic performance in a versatile ring-shaped format.\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\u003eN52 Grade Neodymium:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High magnetic energy density for demanding applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e40mm Outside Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Substantial circular magnetic body.\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 through-hole for 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\u003e10mm Height:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Solid ring-shaped magnetic profile.\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\u003eHigh Magnetic Strength:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e N52 is among the strongest commonly available commercial Neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePermanent Magnet:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Generates a magnetic field without electrical power.\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\u003eVersatile Engineering Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for magnetic fixtures, equipment and custom 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 magnet size.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for Magnetic Coupling Designs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e May be incorporated into appropriately engineered coupling systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIndustrial and Manufacturing Applications:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Useful for product development, machinery and magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCustom Project Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for applications requiring specific ring dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStrong Magnetic Attraction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Requires careful handling and controlled 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\u003eIndustrial Magnetic Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate the magnet into custom magnetic assemblies requiring high magnetic energy density and a central opening.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Coupling Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUse in appropriately designed magnetic coupling arrangements where torque transfer or magnetic interaction 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\u003eSuitable for specialised equipment, prototypes and magnetic components used in manufacturing environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetic Holding Fixtures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIntegrate into custom fixtures and holding systems where the magnetic field and mounting arrangement are appropriate.\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 16mm central opening allows compatible components to pass through the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectric Motors and Generators\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePotentially suitable for specialised motor or generator designs where the magnetisation direction and magnetic characteristics meet engineering requirements.\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 and positioning systems where the magnetic field distribution is appropriate.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eResearch and Development\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for experimental magnetic assemblies, prototyping and product development.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Positioning Systems\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIncorporate into engineered positioning systems requiring magnetic attraction or interaction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCustom DIY Projects\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for experienced makers and hobbyists developing specialised magnetic devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose an N52 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\u003eN52 Neodymium offers exceptionally high magnetic energy density, making it suitable for applications requiring powerful magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Ring Geometry\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole allows shafts, rods and other compatible components to pass through the magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSubstantial Magnetic Body\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 40mm outside diameter and 10mm height provide a significant volume of magnetic material.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePermanent Magnetic Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets generate a magnetic field without batteries or external electrical power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable for Engineering Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for industrial assemblies, magnetic fixtures, mechanical systems and specialised equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePrecision Dimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe specified 40mm OD, 16mm ID and 10mm height allow engineers to assess compatibility with their intended design.\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\u003eN52\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\u003e40mm\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 \/ Thickness (H)\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\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\u003e12mm\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\u003e1,055.6mm²\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\u003e10,555.8mm³\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\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, Magnetic Assemblies, Couplings and Industrial 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\u003eOutside Diameter – 40mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet has a nominal outside diameter of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e40mm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is the total width of the circular magnet measured across its outer edge.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInside Diameter – 16mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features a central through-hole measuring \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e16mm 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, bolts or other mechanical components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAllowances for manufacturing tolerance and mechanical clearance should be considered when designing mating parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHeight – 10mm\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet measures \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10mm in height\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, representing the distance between its two flat annular faces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRadial Wall Width – 12mm\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(40mm − 16mm) ÷ 2 = 12mm\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis represents the distance from the central hole to the outside edge of the magnet.\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\u003e1,055.6mm² (10.56cm²)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis calculation excludes the central hole.\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\u003e10,555.8mm³ (10.56cm³)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese are geometric calculations and do not establish the magnet's pull force or magnetic field strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is an N52 Neodymium Magnet?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAn \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eN52 Neodymium magnet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-grade Rare Earth permanent magnet manufactured from an alloy of Neodymium, Iron and Boron.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe N52 designation identifies a magnetic material grade associated with a high maximum energy product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eN52 magnets are among the strongest commonly available commercial Neodymium grades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey are used in applications requiring high magnetic energy density, including industrial equipment, magnetic assemblies, specialised fixtures and engineering systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, magnetic grade alone does not determine the pull force of a finished magnet.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eActual magnetic performance depends on the magnet's dimensions, magnetisation direction, magnetic circuit, receiving materials and operating conditions.\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 N52 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 N52 grade indicates a high magnetic energy product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the magnet is positioned near suitable ferromagnetic materials or other magnets, magnetic attraction or repulsion may occur depending on the materials and pole orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe central hole 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 N52 Neodymium Ring Magnets\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eHigh Magnetic Strength\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN52 offers high magnetic energy density for demanding applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCentral Mounting Clearance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 16mm hole allows compatible components to pass through the magnet.\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 to maintain the magnet's field.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVersatile Engineering Design\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eRing geometry is useful for a variety of mechanical and magnetic assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSubstantial Magnetic Volume\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 40mm OD and 10mm height provide a significant magnetic material volume.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSuitable for Custom Assemblies\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eUseful for prototyping, manufacturing and specialised magnetic systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eN52 vs Other Neodymium Grades\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eMagnetic Grade\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eRelative Maximum Energy Product\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eGeneral Consideration\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\u003eLower\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSuitable for many general magnetic applications\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\u003eModerate\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigher energy product than N35\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\u003eHigh\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCommon high-performance Neodymium grade\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\u003eHigher\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIncreased magnetic energy density\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\u003eVery High\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStrong magnetic material properties\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\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh magnetic energy density\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eN52\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eAmong the Highest Common Standard N Grades\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for demanding magnetic designs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eHigher grades can provide greater magnetic potential for equivalent dimensions and magnetisation, but the actual performance of a finished magnet depends on its geometry and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to Use 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 40mm OD, 16mm ID and 10mm 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\u003ePrepare the Mounting Components:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ensure shafts, rods or other mating components have appropriate clearance.\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 Keep fingers clear of nearby steel objects and other magnets.\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 suitable 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\u003eCheck Magnetic Interaction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Confirm the magnet behaves as intended.\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, temperature 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 movement, wear 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 and should not be subjected to excessive impact, clamping pressure or mechanical stress.\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\u003eN52 provides high magnetic energy density, but grade alone does not establish pull force.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMagnetisation Direction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAxial, diametric and other magnetisation configurations produce different magnetic field distributions.\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 affect holding performance.\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 attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eExcessive heat can cause irreversible loss of magnetic performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical Stress\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNeodymium magnets are brittle and can crack under impact or excessive pressure.\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 influence the magnetic field and overall 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 the magnet carefully to prevent chipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAvoid allowing 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 excessive heat.\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 devices.\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\u003eConfirm mounting methods do not apply excessive mechanical stress.\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 N52 Neodymium magnets can attract steel objects and other magnets with considerable force.\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 the magnet near ferromagnetic materials.\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 crack, chip or shatter under impact.\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 life-threatening 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, 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 has not been specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMechanical Mounting:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Avoid excessive pressure on the ring magnet, particularly around the central hole.\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\u003e40mm outside diameter, 16mm inside diameter and 10mm 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\u003eN52 grade Neodymium\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat does N52 mean?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN52 is a high-performance Neodymium magnetic grade associated with a high maximum energy product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIs N52 the strongest Neodymium grade?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eN52 is among the strongest commonly available standard commercial Neodymium grades.\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\u003e40mm\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\u003e16mm\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\u003e10mm 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\u003e12mm\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 16mm shaft fit through the magnet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA nominal 16mm 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 maximum operating temperature?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been provided.\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 magnetic properties meet the motor design 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 this magnet suitable for industrial applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided its magnetic, mechanical and environmental performance meet the application's requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet 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\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 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 Neodymium magnets brittle?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eYes. Neodymium magnets are brittle by nature and should be handled carefully.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use this magnet 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\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 high-temperature applications?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe maximum operating temperature has not been specified. Suitability must be confirmed before exposure to elevated temperatures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCan I use it for a safety-critical application?\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\u003eN52 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\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\u003eHigh-Strength Permanent Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMagnetic Coupling Magnets\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial 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\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 – 40mm OD x 16mm ID x 10mm H | N52\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a high-strength Rare Earth permanent magnet designed for specialised magnetic applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe magnet features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e40mm outside diameter, 16mm inside diameter and 10mm height\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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecific magnetisation direction, coating, pull force, surface Gauss, maximum operating temperature and manufacturing tolerances 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 N52 Neodymium magnets are powerful and brittle. Handle with care and avoid impacts, excessive mechanical pressure and uncontrolled attraction to other magnets or steel objects. 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":44651204542596,"sku":"23002A","price":95.6,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/23002A.png?v=1752623355"},{"product_id":"neodymium-ring-magnet-75mm-od-x-8mm-id-x-15mm-h-i-multi-poled-rubber-coated","title":"Rubber Coated Neodymium Ring Magnet - 75mm (OD) x 8mm (ID) x 15mm (H) I 6 Multi-Poled","description":"\u003cp data-start=\"67\" data-end=\"380\"\u003eThis Neodymium Ring Magnet combines strength and versatility in a compact design, making it an ideal choice for various applications. With an outer diameter of 75mm, an inner diameter of 8mm, and a height of 15mm, this magnet is perfectly sized for use in industrial, commercial, or DIY projects.\u003c\/p\u003e\n\u003cp data-start=\"382\" data-end=\"762\"\u003eFeaturing 6 multi-poled magnetic configurations, this ring magnet provides a powerful hold, ensuring it stays securely in place. The rubber-coated exterior enhances durability while protecting surfaces from scratches and damage, making it suitable for both indoor and outdoor use. This coating also helps to reduce the risk of chipping, extending the life of the magnet.\u003c\/p\u003e\n\u003cp data-start=\"764\" data-end=\"1070\"\u003eWhether you need a strong fastening solution, a component for magnetic assemblies, or a creative tool for crafts and displays, this neodymium ring magnet delivers exceptional performance. With its robust magnetic strength and practical design, it’s an excellent addition to your toolkit or workspace.\u003c\/p\u003e\n\u003cp data-start=\"1072\" data-end=\"1260\" data-is-last-node=\"\"\u003eApplications: Ideal for use in magnetic mounts, displays, sensor applications, and various engineering projects, this magnet is a versatile choice for both professionals and hobbyists.\u003c\/p\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":44785446191236,"sku":"93000R","price":322.96,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/28.png?v=1752623323"},{"product_id":"neodymium-ring-magnet-75mm-od-x-8mm-id-x-15mm-h-i-multi-poled-i-plastic-coated","title":"Black Plastic Coated Neodymium Ring Magnet - 77mm (OD) x 8mm (ID) x 17mm (H) I 6 Multi-Poled","description":"\u003cp\u003eThis high-strength Neodymium Ring Magnet (N45) features an outer diameter of 77mm, an inner diameter of 8mm, and a height of 17mm. It is axially magnetised with a 6-multipole configuration, enhancing its efficiency in specialised applications. The black plastic coating provides durability, corrosion resistance, and a smooth surface for easy handling.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIdeal for Prawn Farming \u0026amp; Artemia Separation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis neodymium ring magnet is widely used in prawn farms to efficiently separate Artemia (brine shrimp) from their casings. Its strong multi-poled magnetic field attracts and retains non-nutritious cyst shells, ensuring a cleaner and higher-quality feed for aquatic species.\u003c\/p\u003e\n\u003cp\u003eDesigned for harsh environments, the protective plastic coating enhances longevity by shielding the magnet from moisture and chemical exposure. Whether used in hatcheries or large-scale aquaculture, this magnet provides a reliable, non-invasive solution for improving feed quality and reducing waste.\u003c\/p\u003e\n\u003ch3 data-end=\"570\" data-start=\"535\"\u003e\u003cstrong data-end=\"568\" data-start=\"539\"\u003eRough Pull Force Estimate\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"797\" data-start=\"571\"\u003eFor a single-pole, axially magnetised neodymium ring magnet of similar size (without multi-pole magnetisation), the pull force would typically range from 80–120 kg when in direct contact with a thick ferrous surface.\u003c\/p\u003e\n\u003cp data-end=\"1089\" data-start=\"799\"\u003eHowever, because this magnet is multi-pole, the force is distributed across multiple poles instead of being concentrated at one surface. This generally reduces the direct pull force but improves lateral gripping strength and efficiency in applications like Artemia separation.\u003c\/p\u003e\n\u003ch4 data-end=\"1123\" data-start=\"1091\"\u003eEstimated Pull Force:\u003c\/h4\u003e\n\u003cul data-end=\"1448\" data-start=\"1124\"\u003e\n\u003cli data-end=\"1220\" data-start=\"1124\"\u003eDirect contact with a thick steel plate: ~50–80 kg (adjusted for multi-pole effect).\u003c\/li\u003e\n\u003cli data-end=\"1318\" data-start=\"1221\"\u003ePull force at a small air gap (1-2mm): ~30–50 kg (plastic coating increases the gap).\u003c\/li\u003e\n\u003cli data-end=\"1448\" data-start=\"1319\"\u003eShear force (lateral strength for holding\/sliding applications): Potentially higher due to multiple poles improving grip.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Frenergy Magnets","offers":[{"title":"Default Title","offer_id":44785446224004,"sku":"93000","price":330.22,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0384\/3103\/1428\/files\/27.png?v=1752623321"}],"url":"https:\/\/frenergy.com.au\/collections\/large-ring-magnets.oembed","provider":"Frenergy Magnets","version":"1.0","type":"link"}