Rotary actuator

Electric rotary valve actuator controlling a butterfly valve

Hydraulic or pneumatic rotary actuator, using a rack and pinion

A rotary actuator is an actuator that produces a rotary motion or torque.

The simplest actuator is purely mechanical, where linear motion in one direction gives rise to rotation. The most common actuators though are electrically powered. Other actuators may be powered by pneumatic or hydraulic power, or may use energy stored internally through springs.

单词	Rotary actuator
释义	Rotary actuator 英语百科 Rotary actuator A rotary actuator is an actuator that produces a rotary motion or torque. The simplest actuator is purely mechanical, where linear motion in one direction gives rise to rotation. The most common actuators though are electrically powered. Other actuators may be powered by pneumatic or hydraulic power, or may use energy stored internally through springs.
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