As the direct drive of permanent magnet synchronous motor, the PMSM fan, driven by the motor, saves the reducer link, has no gear and high speed running bearings, so it is free to replace the oil, the reduction of the gear and bearing replacement maintenance and so on. It has really done the maintenance free and greatly improved the service life of the industrial large fan. It 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 long, and it can save a large amount of the second time to purchase the industrial large fan.
