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Neodymium Block Magnet - 15mm x 4mm x 12mm | Epoxy Coating

Product code: 22011

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Neodymium Block Magnet - 15mm x 4mm x 12mm | Epoxy Coating

Rated 5.0 out of 5
Based on 1 review
Product Code 22011
Pull Force* 3.9 kg
Weight 8 gm
Style Neodymium Block magnet with Epoxy coating
Grade N50
Coating Nickel (NiCuNi) + Epoxy
Direction of Magnetisation Magnetised through 12mm
Dimensions Width:15mm, Height:4mm, Length:12mm
*Measured against up to 10mm mild steel.
Neodymium Block Magnet - 15mm x 4mm x 12mm | Epoxy Coating

Magnetic Product Description:

This Rare Earth block magnet has a length of 15mm, a width of 12mm and a height of 4mm. This product has a black epoxy coating, a pull force of 3.9kg and is N50 grade. This product is identified by AMF Magnet part number 22011.

Uses for our Rare Earth Block Magnets with Epoxy Coating:

Rare Earth magnets are the strongest magnets available and have greatly influenced the design and manufacture of many of the world's commercial and consumer products since the proliferation of Neodymium in the 1980s. The standard Nickel coating on these powerful magnets is a cost-effective way of protecting the brittle Neodymium material in banal atmospheric conditions, however, extended periods of exposure to the fluctuations of the weather will eventually lead to corrosion and a breakdown of the Nickel coating, allowing the Neodymium core to deteriorate and eventually fail. To overcome this problem, AMF supplies a range of magnets that have a Black Epoxy coating. The Epoxy seals and protects the encased magnet from the elements and exposure to wind, abrasion, chemicals, salt air and enables magnetic hold to be sustained in underwater applications, harsh atmospheric conditions and general outdoor use. Epoxy coated magnets, like this axially magnetised Neodymium block, have greater durability and extended working life. This makes them an ideal alternative to nickel coated magnets in atmospheres of high humidity, marine environments and for numerous industrial and agricultural uses. The higher than average N50 Grade Neodymium material in this magnet will, to some extent, compensate for the reduction in magnetic strength that the Epoxy coating creates by widening the air gap between ferrous and magnetic surfaces.

average rating 5.0 out of 5
Based on 1 review
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100% of reviewers would recommend this product to a friend
1 Review
Reviewed by Peter
I recommend this product
Rated 5 out of 5
Review posted

good strong magnets

Magnets were purchased to make a stir plate. They do their part perfectly, good price and fast delivery

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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.