Neodymium Block Magnet - 20mm x 12.5mm x 4.6mm
Product code: 22022
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Neodymium Block Magnet - 20mm x 12.5mm x 4.6mm
Magnetic Product Description:
This Rare Earth magnet has a length of 20mm, a width of 12.5mm and a thickness of 4.6mm. It has a magnetic flux of three thousand and ten Gauss with a pull force of 5.7kg against 10mm mild steel. It is identified by the AMF magnet part number 22022.
Uses for our Rare Earth block magnets:
This type of compact and strong Neodymium block magnet is well suited for prototyping and model making as their versatile size enables them to be embedded into moulded materials such as plastic, timber, perspex or resin. They are also used in a variety of mechanical applications where they convert electrical energy into mechanical energy. This type of Block magnet can be found in electric motors, cordless power tools, generators and electric vehicles.
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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.
