As the direct drive of permanent magnet synchronous motor, the PMSM fan is driven by the motor, it saves the reducer link, and has no gear and high speed running bearings, so no replacement of oil is needed, and the reduction of the gear and bearing replacement maintenance is not needed. It has really removed the maintenance and has greatly improved the service life of the industrial large fan. This brings a more reliable experience for the user.
Because of the use of rare earth metal as the outer rotor of the industrial large fan of permanent magnet synchronous motor, as long as the temperature of the motor is controlled effectively (just use the traditional type environmental temperature), the life of the motor can be infinitely increased, this reduces the investment amount which is done again and again.
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