NdFeB N52 Industrial Magnet Super Strong Permanent Neodymium Block Magnet
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NdFeB N52 Industrial Magnet Super Strong Permanent Neodymium Block Magnet

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★ Oxidization (Rust)

NdFeB magnets will oxidize(rust) if left exposed. When a plating wears down or cracks, the exposed area will oxidize. An oxidized area will not result in complete degradation of the magnet, only the oxidized area will lose its strength. However the magnet will lose some structural integrity and become more susceptible to breakage.


★ Durability

Depending on shape, permanent magnet substrate is brittle. A multilayered metal plating like nickel or zinc improves the magnets resistance to chipping and wear, particularly around corners.


★ Harsh Environments

Platings vary in their tolerance of different harsh chemicals and abrasion. Salt and humidity in regions near the ocean are

commonly overlooked when selecting a plating. Be sure to consider the magnets environment when selecting a plating.


The most common type of plating for neodymium magnets Nickel (Ni-Cu-Ni) Intended for indoor use. It has proven to be very resilient when subjected to normal wear and tear. However it will corrode oudoors in prolonged exposure to salt water, salty air,or harsh chemicals.



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SDM Magnetics is one of the most integrative magnet manufacturers in China. Main products : Permanent magnet,Neodymium magnets,Motor stator and rotor, Sensor resolvert and magnetic assemblies.
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