... . Magnetic properties: Sintered NdFeB magnet is one of the high performance rare earth permanent magnets, which use neodymium (Nd), iron (Fe), ... is up to 240°C or says 489.6F3. Grade:N33-N52, 33M-48M, 33H-48H, 30SH-45SH, 30UH-40UH, ... such as motors, sensors, microphones, wind turbines, wind generators, VCMs in hard disk drives, printer, switchboard, loudspeakers, magnetic separation, magnetic hooks ...