Tubular Linear Actuator

https://www.zwldmachine.com/products/tubular-linear-actuator/

A tubular linear actuator is a compact and versatile device designed for linear motion applications. It consists of a cylindrical housing that houses the actuator's internal components, such as a motor and transmission mechanism. These actuators offer reliable and precise linear motion and are commonly used in industries such as robotics, automation, and medical equipment.