This Linear actuator creates motion in straight line in contrast to a circular motion in conventional electric motor. It is used in machine tools and computer peripherals such as disk drives and printers, in valves and dampers, and where linear motion is required.such as power seats in cars. Rotary motion of the motor converted to linear displacement. It is available in 4, 8, 12, 24 volts inputs. Shaft length, and torque are designed based on your order. Also torque and speed can be tailored with additional gear driven converter coupled with actuator.