Neodymium Disc Magnet 20mm x 5mm N45
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Neodymium Disc Magnet 20mm x 5mm N45
Powerful, versatile, and built for reliable performance, this Neodymium Disc Magnet measures 20mm in diameter x 5mm in thickness and is manufactured from premium N45-grade rare earth neodymium. Combining a broad magnetic surface area with impressive holding strength, this disc magnet is ideal for industrial, commercial, workshop, and DIY applications where dependable magnetic performance is required.
Finished with a durable NiCuNi nickel coating, this magnet features a smooth polished silver appearance while helping protect against corrosion and wear. Magnetised through the 5mm thickness (axially magnetised), it delivers concentrated magnetic force across the flat circular face for strong and consistent holding power.
Its practical dimensions make this magnet suitable for a wide variety of uses including magnetic mounting systems, signage, cabinetry, engineering projects, workshop fixtures, product design, magnetic closures, and fabrication work. Whether you're creating custom magnetic assemblies or sourcing high-strength magnets for manufacturing and prototyping, this N45 neodymium disc magnet offers professional-grade quality and performance.
Features & Benefits
- Premium N45-grade neodymium rare earth magnet
- Dimensions: 20mm diameter x 5mm thickness
- Strong magnetic holding performance
- Durable NiCuNi nickel plated coating
- Magnetised through the thickness (axial magnetisation)
- Smooth polished metallic finish
- Wide disc surface for reliable contact and holding
- Suitable for industrial, commercial, hobby, and DIY applications
Common Applications
- Magnetic mounting and holding systems
- Engineering and fabrication projects
- Workshop jigs and fixtures
- Magnetic closures and assemblies
- Retail displays and signage
- Cabinetry and furniture applications
- Product design and prototyping
- Arts, crafts, and DIY projects
Please Note
Neodymium magnets are extremely strong for their size and should be handled carefully. Magnets may snap together unexpectedly and can chip or crack upon impact. Keep away from children, pacemakers, electronic devices, and magnetic storage media.
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.
