An electric actuator is a device that converts electrical energy into mechanical motion. It usually consists of electric motor, transmission mechanism and control system. Electric actuators can be used to control and drive a variety of mechanical systems, such as valves, doors and windows, regulating valves, pumps, and robots.

The working principle of an electric actuator is similar to that of an ordinary electric motor, which achieves movement by converting electrical energy into mechanical rotation. The transmission mechanism converts the rotational motion of the motor into linear or rotary motion to achieve the specific operation required by the actuator. The control system is used to control and monitor the movement of the electric actuator, and usually consists of sensors, control algorithms and interfaces.

Electric actuators offer a variety of benefits, including precise control, high-efficiency switching, programmability, automation capabilities, and remote operation. They are widely used in industrial automation, building automation, medical equipment, automotive and aerospace.