This is a rectangular neodymium magnet with a length of 30mm, a width of 10mm and a thickness of 5mm, different from other neodymium magnets is its coating, the surface is plated with black nickel, which belongs to the special coated magnets, this kind of block magnets can be magnetized in length, width or thickness, please send us an inquiry for any questions, need a quote.
Black nickel plating on magnets serves several purposes:
Aesthetics: Black nickel plating can give a magnet surface a black or darker tone, making it more attractive to look at for certain decorative or application purposes.
Corrosion Resistance: Black Nickel provides a degree of corrosion resistance that reduces the risk of oxidation and rust on the magnet's surface for a longer service life.
Enhanced Wear Resistance: The black nickel coating increases the hardness and wear resistance of the magnet's surface, reducing surface abrasion caused by friction.
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