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The new generation product unit consists of: centrifugal impeller, high-speed permanent magnet motor, air suspension bearing and special frequency converter. 2. The permanent magnet motor drives the air-floating main unit and drives the centrifugal impeller to rotate at high speed. The kinetic energy of the motor is converted into potential energy. The discharged gas passes through the volute to form compressed air. 3. Through sensor and frequency converter electrical control, the air suspension components in the main unit start to work and generate controllable suction on the rotor to make the motor shaft suspended and achieve "zero friction".