Working Principle and Technical Features of Electric Actuators

2026-06-08

Electric actuators are electromechanical devices that convert electrical energy into mechanical energy via the motor to drive valves or actuators for opening, closing, and regulating operations. Its working principle mainly includes key components, such as electric motor, gearbox, sensor, and controller.

Electric Motor

Electric actuators use AC or DC motors as the power source and are operated by the electrical energy supplied by the power source.

Our actuator portfolio includes both AC motor actuator and DC motor actuator, offering flexibility in power selection while ensuring reliable operation, accurate positioning, and low maintenance requirements.

Gearbox

The gearbox in the electric actuator is mainly used to reduce the motor rotational speed and improve the torque output, enabling the actuator to meet the requirements for high torque output and low-speed operation output.

Designed as a high torque actuators, our electric actuator can achieve 1000nm torque and 2000nm torque through an efficient gear reduction system. This design ensures powerful valve operation, reliable performance, and long-term durability.

Sensors

Sensors of electric actuators are used to measure parameters, such as travel, speed, and power. These signals are transmitted to the controller to achieve precise control.

Controller

Electric actuators are equipped with intelligent controllers that receive signals from sensors and control the motor operation, achieving precise control of the actuator.

Technical Features of Electric Actuators

High Efficiency and Energy Saving

Electric actuators are driven by actuator motor. Compared with traditional pneumatic actuators or manual operation, they offer higher energy efficiency and better energy-saving effect.

Precise Control

The operating travel, speed, and power of electric actuators are controlled through current signals, enabling precise position control and power control to improve operational efficiency.

Fault Self-Diagnosis

Equipped with intelligent controllers, electric actuators can achieve fault self-diagnosis function, give early warnings and record operating status, improving equipment reliability and maintenance efficiency.

Electric actuators are widely used in various fields, such as industrial automation, intelligent buildings, smart homes, and infrastructure. With continuous technological development and innovation, electric actuators will play an important role in more applications.