Different from the bonded NdFeB you've seen in the past, the surface of this bonded NdFeB ring magnet is coated with Perrine coating, which is an advanced vacuum deposition technology that provides good protection.The magnet appearance color can be seen in the sample picture below.Outside diameter is 8.3mm, hole is 4.5mm, height is 9mm, radial 4 poles magnetization, No.8 powder, with anti-rotation groove.
Bonded Molded NdFeB Hollow Cylinders with Anti-Rotational Grooves Perylene Coating
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