Neodymium Block Magnet - 8mm x 4mm x 3mm | N50
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Neodymium Block Magnet - 8mm x 4mm x 3mm | N50
Compact yet impressively powerful, this Neodymium Block Magnet measures 8mm x 4mm x 3mm and is manufactured from premium N50-grade rare earth neodymium for outstanding magnetic performance in a small form factor. Designed for precision applications where size and strength matter, this miniature block magnet is ideal for electronics, crafts, prototyping, engineering, and custom magnetic assemblies.
Featuring a durable NiCuNi nickel coating, this magnet has a smooth polished metallic finish while offering added resistance against corrosion and wear. Magnetised through the 3mm thickness (axially magnetised), it delivers strong magnetic holding power relative to its compact size.
Its small rectangular profile makes it perfect for discreet magnetic closures, sensor systems, model making, packaging, lightweight holding applications, and detailed fabrication work. Whether you're designing a custom project or sourcing reliable magnets for production applications, this N50 neodymium block magnet provides exceptional strength and consistent performance.
Features & Benefits
- Premium N50-grade neodymium rare earth magnet
- Dimensions: 8mm x 4mm x 3mm
- Compact size with strong magnetic performance
- Durable NiCuNi nickel plated coating
- Magnetised through the thickness (axial magnetisation)
- Smooth polished silver finish
- Ideal for precision and small-scale applications
- Suitable for industrial, commercial, hobby, and DIY use
Common Applications
- Electronics and sensor systems
- Magnetic closures and fasteners
- Model making and miniatures
- Arts, crafts, and DIY projects
- Prototyping and product design
- Lightweight holding applications
- Packaging and display solutions
- Engineering and fabrication projects
Please Note
Neodymium magnets are very strong for their size and should be handled carefully. Small magnets can present a swallowing hazard and should be kept away from children. Avoid allowing magnets to snap together, as they may chip or crack upon impact.
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.
