Each powder drying mixer will be mounted on a reducer at the top next to the motor, mostly due to the mixing shaft operating speed range is within 30-600rpm far less than the rated speed of the motor, needing to mount a gear reducer at the end output shaft of the motor, which is a independent closed power transmission gears between the AC motor and the working machine to reduce speed and increase torque accordingly.

In accordance with the driving and structural characteristics, it can be divided into cycloid reducers, belt pulley reducer, worm gear reducer and helical gear reducers, when we choose the right gear reducer according to process requirements and operating environments Optional machines, in addition to satisfying the selection of output power and speed requirements should be easy and reliable operation and maintenance of high mechanical efficiency and low noise. Now we come to recognize that these four were reducer, learning under their works.