The reducer is to reduce the speed of the motor (motor) through a mechanical transmission device, and the frequency converter is to achieve the purpose of adjusting the speed of the motor (motor) by changing the frequency of the alternating current. When the motor speed is reduced by the inverter, energy saving can be achieved. The difference between a worm reducer and a worm gear reducer: In fact, there is not much difference between a worm reducer and a worm gear reducer. Both are composed of a worm gear and a worm. However, the worm reducer is relatively rough and has no worm gear reducer. The torque of the worm reducer of the same specification is larger than that of the worm gear reducer. The worm gear reducer is mainly made of aluminum alloy, but the worm reducer is only cast iron. The second difference is that the price of the worm reducer is lower than that of the worm gear. The price of the machine is cheaper.