Neodymium Block Magnet - 30mm x 20mm x 5mm | N45H
Product code: 22009D
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Neodymium Block Magnet - 30mm x 20mm x 5mm | N45H
Magnetic Product Description:
This rectangular block magnet has a length of 30mm, a width of 20mm and a height of 5mm. It has a magnetic flux of 2247 Gauss and a 12.02kg pull force against 5mm mild steel. It is identified by the AMF magnet part number 22009D.
Uses for our rare earth block magnets:
This Neodymium Block has similar dimensions to the AMF 22009A product. Historically this magnet has been used by an AMF customer involved in cinematic film projector manufacturing and servicing, where the heat resistant N45H Grade Neodymium allows the magnet to maintain strength and perform reliably in the heated environments of film projection. It is also popular as an all-purpose magnet where a thin rectangular-shaped magnet is preferred or where exposure to heat is unavoidable. These strong Neodymium blocks are also used by sign and graphics suppliers, building maintenance services and communications equipment manufacturers.
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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.
