The screw conveyor is a kind of high-efficiency conveying equipment. According to the requirements of the user's conveying capacity, different types of designs can be used to control the amount of conveying and meet the material conveying operation under different conditions. Due to the high speed of the ordinary motor, it is necessary to install other speed regulating components for the screw conveyor to achieve the speed reduction effect. In order to adjust the output volume in modern enterprise production, the material conveying requirements under different conditions can be met. The equipment on the production line has been flexibly designed, that is, the equipment requirements can meet both the large productivity and the control of the output. Therefore, the requirements for the equipment are relatively improved. However, compared with these two control methods, the screw conveyor equipped with the frequency conversion equipment is much simpler in terms of the volume control and arrangement, but the procurement cost has increased.

There are two common design methods, one is the common motor plus frequency conversion equipment for control. This type of design is convenient to control, and can be remotely controlled with the microcomputer, and the motor can be realized after the installation of the frequency conversion equipment. Effective protection is more common in modern enterprises. Another control method is to change the ordinary motor to a speed control motor for control. Due to the design reasons, the arrangement of the speed-regulating motor and the connection mode of the screw shaft also need to be changed. Relatively speaking, the cost of the screw conveyor using the speed-regulating motor is lower than that of the frequency-added equipment. There are many screw conveyors that use adjustable speed motors.