Neodymium Cylinder Magnet 12mm x 50mm N48
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Neodymium Cylinder Magnet – 12mm x 50mm | N48
The Neodymium Cylinder Magnet – 12mm x 50mm | N48 is a premium rare earth permanent magnet engineered to deliver exceptional magnetic performance in a long, precision-machined cylindrical profile. Manufactured from high-performance N48 grade neodymium iron boron (NdFeB), this magnet offers outstanding magnetic strength, making it ideal for demanding industrial, commercial, and engineering applications.
Measuring 12mm in diameter and 50mm in length, this cylinder magnet features an elongated design that produces a strong, concentrated magnetic field while remaining compact enough for installation into drilled holes, tubular housings, automation equipment, precision fixtures, and custom OEM assemblies. Its extended length provides excellent stability and alignment in mechanical systems where a standard disc or block magnet may not be suitable.
This magnet is axially magnetised through its 50mm length, positioning the north and south poles on the two circular end faces. This magnetisation direction delivers a focused magnetic field that is ideal for magnetic holding, positioning, reed switch activation, magnetic couplings, linear sensing, and precision alignment applications.
Finished with a durable nickel-copper-nickel (Ni-Cu-Ni) triple-layer coating, the magnet features a polished silver finish that provides excellent resistance to corrosion and everyday wear. Whether you're designing industrial machinery, automation systems, scientific equipment, or specialist engineering products, the 12mm x 50mm N48 Neodymium Cylinder Magnet provides dependable long-term performance.
Key Features
- Premium N48 grade neodymium rare earth magnet
- Dimensions: 12mm diameter x 50mm length
- Long cylindrical design
- Exceptional magnetic strength
- Axially magnetised through the 50mm length
- North and south poles located on the circular end faces
- High magnetic energy density
- Durable nickel-copper-nickel (Ni-Cu-Ni) plated finish
- Precision manufactured for dimensional consistency
- Suitable for industrial, commercial, and engineering applications
Common Applications
- Industrial automation
- Magnetic holding systems
- Precision engineering
- Robotics
- Reed switch activation
- Magnetic sensors
- Electric motors
- Scientific instruments
- Magnetic couplings
- Custom OEM assemblies
Ideal For
- Engineers
- OEM manufacturers
- Automation specialists
- Machinery builders
- Product designers
- Electronics manufacturers
- Robotics developers
- Research laboratories
- Maintenance engineers
- Precision fabrication workshops
Why Choose an N48 Neodymium Cylinder Magnet?
The N48 grade delivers higher magnetic energy than many standard neodymium grades, making it an excellent choice where maximum magnetic performance is required without significantly increasing component size. It provides exceptional holding force and long-term reliability for demanding engineering and manufacturing applications.
The 12mm x 50mm dimensions create a long, slender cylindrical profile that is ideal for deeper installations, magnetic locating systems, actuators, tubular housings, and linear positioning applications. Its extended length improves stability within precision assemblies while maintaining a concentrated magnetic field at each end.
Because the magnet is magnetised through its length, the magnetic field is focused on the circular end faces, providing excellent end-to-end attraction and reliable performance for magnetic holding, sensing, switching, positioning, and coupling applications.
Technical Specifications
- Product Type: Neodymium Cylinder Magnet
- Material: Neodymium Iron Boron (NdFeB)
- Magnet Grade: N48
- Shape: Cylinder
- Diameter: 12mm
- Length: 50mm
- Magnetisation: Axially magnetised through the 50mm length
- Pole Orientation: North and south poles on the circular end faces
- Coating: Nickel-Copper-Nickel (Ni-Cu-Ni)
- Finish: Polished silver nickel finish
- Magnet Type: Permanent Rare Earth Magnet
- Application: Holding, positioning, sensing, automation, electronics, manufacturing, and precision engineering
Please Note
Neodymium magnets are extremely powerful for their size and should always be handled with care. Due to its 50mm length, this magnet can generate substantial attraction forces and may snap towards steel objects or other magnets unexpectedly, creating pinch hazards or causing the magnet to chip if allowed to collide.
Actual holding force depends on the thickness, finish, and condition of the mating steel surface. Air gaps, paint, coatings, rust, uneven contact, elevated temperatures, and sideways or peeling forces can significantly reduce magnetic performance.
Neodymium magnets are hard but brittle. Do not drill, cut, machine, weld, or subject the magnet to heavy impacts, as this may damage both the magnet and its protective nickel coating.
Keep away from children, pacemakers, medical implants, magnetic storage media, and sensitive electronic equipment that may be affected by strong magnetic fields.
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Production Flow Diagram
Demagnetization Curves
Surface Treatment
The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.
Range and Tolerance
Magnets are readily available in Blocks, Discs, Cylinders & Rings. We specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.
Magnetic Properties
Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.
Returns Policy
If you are not entirely satisfied with your purchase, we're here to help.
We have a 30 Day Returns policy at Frenergy Magnets. You may return your item within 30 days of receiving it to receive a refund.
The product/s must be unused and in the same condition you received them in. Please contact us at info@frenergy.com.au to initiate the returns process.
The buyer is responsible for the cost of returning the order.
