Fan by using material classification can be divided into several, such as iron fan (fan), glass steel fan, plastic fan, aluminum fan, stainless steel wind machine and so on classification of wind turbines can be in the direction of gas flow, centrifugal, axial flow, oblique flow (Francis) and cross flow type.

(1) centrifugal fan. Air flow into the impeller of the wind turbine is mainly along the radial flow. This kind of fan is made according to the principle of centrifugal action, the products include centrifugal fan, centrifugal blower and centrifugal compressor.

(2) axial flow fan. The impeller axial airflow into the fan, fan Zibo paint room, approximately on a cylindrical surface along the axial direction of flow. Such fans include axial fan, axial fan and axial flow compressor.

(3) rotary fan. Using the rotor rotation to change the volume of the air chamber. The common varieties of Roots blower, rotary compressor. According to the flow direction of the air flow into the impeller, the fan is divided into axial flow fan, centrifugal fan and oblique flow (mixed flow). The fan is divided into a press type local fan (hereinafter referred to as the press type fan) and the explosion proof motor placed in the runner outside or in the flow passage, the explosion proof motor is arranged in the explosion-proof sealing chamber of the extraction type local fan. The fan can be divided into single stage, double stage or multi-stage pressurized air blower according to the pressure form. High end fan is a multi-stage pressurized air blower. Fan according to the use of the division can be divided into: axial fan, mixed flow fan, roof fan, air conditioning fan, etc.. The grounding of the air blower casing or the electric motor shell must be reliable; the rotation of the reverse direction is forbidden, the running of the super rated current is forbidden, and the lack of phase operation is prohibited. Commissioning of wind machine allows full voltage starting or step-down starting, but it should be noted that, during full voltage starting current is about 5 to 7 times the rated current, supply paint room fan, step-down starting torque and current square is proportional, paint room fan parameters, when the power capacity shortage should be the buck.