NdFeB magnet is a member of the rare earth permanent magnet and is the most powerful permanent magnet in the world. Because it is mainly composed of three materials: neodymium (Nd) iron (Fe) and boron (B), it is called neodymium iron boron, which is also called neodymium magnet, or magnetic steel. NdFeB is the third generation of rare earth permanent magnets. Its excellent magnetic force and low price make it widely used. It is the rare earth permanent magnet with the highest commercial value.

Sintered NdFeB permanent magnet materials have excellent magnetic properties and are widely used in electronics, electric machinery, medical equipment, toys, packaging, hardware machinery, aerospace and other fields. More common are permanent magnet motors, speakers, magnetic separators, Computer disk drive, magnetic resonance imaging equipment, etc.