https://www.zwldmachine.com/products/ddtg-53-micro-tubular-linear-actuator.html DDTG-53 Micro Tubular Linear Actuators Compact and precise, the DDTG-53 Micro Tubular Linear Actuator is a small but powerful linear actuator ideal for tight spaces and high accuracy applications. With a diameter of 53mm and a force output of up to 200N, it offers smooth and reliable linear motion using a ball screw mechanism and stepper motor. Optional features include built-in limit switches and position feedback.All Rights Reserved