30mm ring magnets

Neodymium Ring Magnet OD 30mm x ID 20mm x H 2mm

This is a 30mm ring magnet from a magnet supplier in China. The outer diameter is 30mm, the inner hole is 20mm, the thickness is 2mm, and the thickness is magnetized. We have neodymium ring magnets of different lengths, outer diameter/inner diameter, finishes and high quality grades. NdFeB ring magnets are finished with uncoated, triple-coated (Ni-Cu-Ni) nickel coatings or black epoxy coatings for optimal corrosion resistance....