... and price 3)has strong magnetic force Large Ring magnet N35,N38,N40,N42,N45,N48,N50, ... force.6, With precise tolerance.Application for NdFeB magnet:Magnetic separator, Sensors, Wind generators,Vibration motors,DC ... appliances,microphone parts,transmission equipments...Features of NdFeB magnet :Neodymium magnets are mainly made from neodymium , ... here, welcome your inquiry, thanks. N50 large ring magnet