Permanent magnet motors
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AC permanent magnet
Applications that require high torque at low speeds often use synchronous motors with reducers, as  standard induction motors generate plenty of torque, but unfortunately not at low speeds.  New synchronous motor designs using permanent magnets make it possible to have low speed and high torque in one package, eliminating gearboxes and other mechanical components. Also for high speed applications permanent magnet motors provide improved properties. The motor also delivers high torque at low speed, a benefit traditionally associated with dc motors.
The use of permanent magnets to create a constant flux in the air gap, results in synchronous performance with the robust design of an asynchronous induction motor. The permanent magnets are made from neodymium iron boron (NdFeB) or samarium cobalt (SmCo).  Both materials provide powerful magnetic material with high flux density at high magnetization.

Submersible PM motor

PM motor-generator
Down loads


Special electric motors and fans
1919 - 2019