What is an electric linear actuator?

Electric push rod

Electric push rod, also known as linear actuator, is a new linear actuator composed of motor push rod and control device. It can be considered as an extension of the structure of rotary motor. Electric push rod is a kind of electric drive device which converts the rotational motion of motor into the linear reciprocating motion of push rod. It can be used as an executing machine in various simple or complex technological processes to achieve remote control, centralized control or automatic control.

Main structure of electric push rod:
The electric push rod is composed of driving motor, reducer gear, screw, nut, guide sleeve, push rod, slide seat, spring, housing, turbine, micro-control switch, etc.

Electric push rod is a new type of electric actuator. The electric push rod is mainly composed of motor, push rod and control device. It can realize long-distance control and centralized control. Electric push rod moves to and fro within a certain range of travel. Generally, the standard travel of electric push rod is 100, 150, 200, 250, 300, 350, 400 mm. Special travel can also be designed and customized according to different application conditions. The electric push rod can be designed with different thrust according to different application loads. Generally, its maximum thrust can reach 6000N, and its no-load running speed is 4mm~35mm/s. The electric push rod is powered by 24V/12V DC permanent magnet motor, which converts the rotational motion of the motor into linear reciprocating motion. Push a group of connecting rod mechanism to complete the switching work of air valve, valve, gate, baffle, etc.


Using electric push rod as actuator can not only reduce the air source device and auxiliary equipment needed by using pneumatic actuator, but also reduce the weight of actuator. The pneumatic actuator needs certain air pressure in the whole control operation process. Although the amplifier with small consumption can be used, the gas consumption is still huge over time. With electric push rod actuator, when the control opening is changed, the power supply is needed, and when the required opening is reached, the power supply is no longer needed. Therefore, from the point of view of energy saving, the electric push rod actuator has obvious advantages over the pneumatic actuator in energy saving. It is suitable for long-distance operation and widely used in the opening and closing, material handling and flow control of air valves, valves and gates in power, chemical industry, metallurgy, mining, light industry, transportation, ships and other departments. Now it has been used by more and more departments to replace the automatic devices of mechanism hand, hydraulic valve and deceleration transmission mechanism.

Use of electric push rod:
Electric sofa, electric booth lifting pole, industrial electric lifting system, camera frame, projector, wedding system, electric turntable bed, electric nursing bed, etc.