Neodymium Disc Magnet - 20mm x 12mm | N42
Product code: 20014
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Neodymium Disc Magnet - 20mm x 12mm | N42
Magnetic Product Description:
This Neodymium disc magnet has a diameter of 20mm and a height of 12mm. It is identified by the AMF magnetics part number 20014.
Uses for our neodymium disc magnets:
This Rare Earth Disc exhibits powerful holding strength with its N42 grade. It combines this power with a compact shape to concentrate the magnetic energy emitted from the flat, circular faces. Excellent demagnetisation properties that are suitable for applications where deflective buffering or a damping effect is required, like production lines in factories and general industrial use. Also used in invisible closure mechanisms and security systems.
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NB: Ranges are indicative for product category, please check individual products for specic values within that range.
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.
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.
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.
