Neodymium Disc Magnet 4mm x 2mm N50
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Neodymium Disc Magnets
Many hobby, craft and model enthusiasts use these small, powerful disc magnets to make their creations look more appealing and also make them more practical to use. N50 Grade rare earth discs are powerful and can easily suspend lightweight items such as cloth, jewellery and components of miniature scale models. Each side of the round, flat disc has either the North or South pole on it that can be used to bind to ferrous surfaces or will attach to another magnet with the opposite pole. Many fashion accessory designs now use strong Neodymium discs to replace buttons and press-studs as closure points or attachment options. Magnetic bond is simple and instinctive and usually falls naturally into the correct closure position with minimal prompting. Rare earth disc magnets can be attached to most surfaces with Epoxy glue.Some applications require small Neodymium disc magnets to be stitched into garments or sealed inside the cover of a book or brochure where they perform the required closure duties in an almost invisible manner.
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. AMF Magnetics 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.