What is a linear actuator？

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<p>There are various types of linear actuators, which can be divided into mechanical, hydraulic, pneumatic, piezoelectric, motor, linear motor, and telescopic types according to different driving methods and structural principles.</p>

<p>The working principle of a linear actuator varies according to different types, but it is generally achieved by converting the rotational motion of the motor into linear motion through a certain mechanism. For example, a screw type linear actuator drives the screw shaft to move in a straight line by rotating a nut; The gear and shaft type linear actuator drives a shaft to move in a straight line through gears and chains or belts; Linear motor type linear actuator uses electromagnetic fields to drive a coil to move in a straight line, etc.</p>