Centrifugal Fan Product Introduction This series of centrifugal fans uses AC capacitors to operate asynchronous motors, which are divided into two categories: inner rotor and external transmitter. The fan has two modes of speed control, which is controlled by thyristor stepless speed regulation and motor winding tapping. The conventional three-speed adjustment Speed; The use of advanced technology to design the fan, with the advantages of convenient installation, reliable operation, low noise, large air volume, energy saving and high efficiency; using years of research and development technology of motor production, eliminate the AC electromagnetic noise generated during the operation of the motor, superior to similar products. ; Has the advantage of cheap high quality.