You are welcome to ServoCity, where you will find all the components you need to make your idea a reality. We strive to provide the highest quality components, backed with unparalleled technical support, from actuators and Actobotics, to servos and switches. Open X-Rail is used as the frame for this linear actuator kit. It has a small profile and offers many mounting options. A 3/8 inch aluminum extension tube with a 6mm 6 start screw drives it. It has 8mm travel (0.315") per turn. A variety of clamping parts are available in 3/8 inch sizes that will enable you to attach something to the piston. The lead screw drives the Open X-Rail through the extension tube. You can customize the speed and thrust of your application by adding drive gears to the kit.