Magnetic Pulse Electric has pioneered the revolutionary technology route of "non-magnetic assembly in-situ charging and demagnetization" for large permanent magnet motors internationally. It has overcome difficulties such as saturated magnetization of magnetic poles in large permanent magnet motors, precise demagnetization of magnetic poles in situ under complex magnetic circuits, and the development of integrated equipment for large-scale charging and demagnetization under extreme working conditions. It has developed the only large-scale permanent magnet motor charging and demagnetization series equipment in the world, which has been successfully applied to the full life cycle of efficient manufacturing, precise operation and maintenance, and green remanufacturing of large permanent magnet motors.