12.7mm is an intermediate dimension for spherical rare earth neodymium magnets, it is also a popular size in the USA market. The pulling strength of N42 neodymium ball magnets of 12.7mm is about 2.7kg. Higher grades can be customized for greater force. Most 12.7mm neodymium sphere magnets bulk are plated with nickel or chromium, other plating (like as Au and Ag) can be customized. If two strong magnetic balls collide, the coating at the contact point will fall off due to the strong impact force. Do not let children play with the magnetic ball alone.
Remanence (Br): 12.7mm neodymium magnet balls of grade N42 have remanence of 12800-13200 Gs.
Coercivity (Hcj）: ≥955 KA/m.
Magnetic Energy Product (BHmax): N42 sphere magnets wholesale of 12.7mm have a BHmax of 40-43 MGOe.
Max.Working Temp.: ≤80℃.
Common Coating : Cr and nickel are the common coating types for sphere neodymium magnets 12.7mm.
Axially(poles on two points)
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