Industry news

The definition of the electric linear actuator

2021-11-23

Electric linear actuator is an essential part of automatic control system. Electric linear actuator's function is to receive the control signal sent by the controller and change the size of the controlled medium, so as to maintain the controlled variable at the required value or within a certain range. Actuators can be divided into pneumatic, hydraulic and electric according to their energy forms. Pneumatic actuator uses compressed air as energy, which is characterized by simple structure, reliable and stable action, large output thrust, convenient maintenance, fire and explosion prevention, and low price. Therefore, it is widely used in chemical industry, papermaking, oil refining and other production processes. It can be easily used with passive instruments. Even when the electric instrument or computer control is used, the pneumatic actuator can still be used as long as the electrical signal is converted into a standard air pressure signal of 20-100kpa through the electro-pneumatic converter or electro-pneumatic valve positioner. The electric actuator has the advantages of convenient energy access and rapid signal transmission, but it has complex structure and poor explosion-proof performance. The hydraulic actuator is basically not used in the production process of chemical industry and oil refining. Its characteristic is that the output thrust is very large.

We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept