Neodymium Disc Magnet 50mm x 12.5mm N38
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Neodymium Disc Magnet – 50mm x 12.5mm | N38
Powerful, durable, and engineered for demanding applications, this Neodymium Disc Magnet measures 50mm in diameter x 12.5mm thick and is manufactured from premium N38-grade NdFeB (Neodymium Iron Boron) rare earth magnetic material. Offering exceptional magnetic strength in a compact disc profile, this permanent magnet is ideal for industrial, engineering, manufacturing, automation, research, and heavy-duty DIY projects.
Neodymium magnets are the strongest commercially available permanent magnets, delivering significantly greater holding power than ferrite, Alnico, or samarium cobalt magnets of comparable size. The combination of a 50mm diameter and 12.5mm thickness provides a large magnetic contact area and high magnetic energy, making this magnet well suited to magnetic holding, clamping, positioning, mounting, and separation applications.
This disc magnet is axially magnetised, meaning the magnetic poles are located on the two flat 50mm diameter faces. This orientation provides maximum face-to-face holding force when placed against a ferrous steel surface or integrated into custom magnetic assemblies.
Protected by a durable nickel-copper-nickel (Ni-Cu-Ni) coating, the magnet offers excellent resistance to corrosion and wear while maintaining a smooth, polished finish suitable for professional industrial use.
Features & Benefits
- Premium N38-grade rare earth neodymium disc magnet
- Dimensions: 50mm diameter x 12.5mm thickness
- Axially magnetised for maximum holding performance
- Extremely strong magnetic force
- Large magnetic contact area
- Durable nickel-copper-nickel (Ni-Cu-Ni) coating
- Precision-manufactured for consistent quality
- Long-lasting permanent magnet
- Suitable for industrial, commercial, and engineering applications
Common Applications
- Heavy-duty magnetic holding
- Engineering and manufacturing
- Industrial automation
- Machine fixtures and tooling
- Magnetic separation systems
- Scientific research
- Product development
- Custom magnetic assemblies
Ideal For
- Mechanical engineers
- Industrial manufacturers
- OEM equipment builders
- Automation specialists
- Fabrication workshops
- Research laboratories
- Product designers
- Prototype development
Why Choose an N38 Neodymium Disc Magnet?
The 50mm x 12.5mm N38 Neodymium Disc Magnet offers an excellent balance of size, strength, and versatility. Its substantial thickness provides increased magnetic energy, while the large disc face maximises contact area for secure holding and positioning. It is an ideal solution for industrial fixtures, magnetic clamping systems, automation equipment, and custom engineering projects where reliable, long-lasting performance is essential.
Please Note
This is a high-strength industrial magnet 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 ferrous steel surface with full face-to-face contact. Actual magnetic strength will vary depending on the steel thickness, surface finish, air gap, and application.
Keep away from children, pacemakers, implanted medical devices, sensitive electronic equipment, magnetic storage media, and precision instruments. Avoid drilling, machining, excessive heat exposure, or heavy impacts, as these may permanently damage the magnet or reduce its magnetic performance.
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.
