1.NdFeB,also called Neodymium magnets,Rare earth magnets, Strong magnets,is the most powerful type of permanent magnets.
2.sensitive to heat with magnetic strength slightly reduced when temperature's above 80°C; the max operation temp is up to 200 degree centigrade or 380 curie temperature
3.Grade:N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH and 30EH-35EH;
4.Shape: ring,(block, disc, bar and so on);
5.size: OD-23.5mm; ID-18.5mm; height-13.8mm
4.Coating: Ni, Zn, gold, copper, epoxy and so on;
3.Application of Neodymium magnets:
speakers, microphone assemblies, computer rigid disc drives, linear actuators, hammer bank printers, magnetic separators, motors, ect.