Mini linear actuator (Motion Systems Inc) with free clutching at both ends of stroke, 4-inch stroke, 40lbs dynamic load, 250lbs static load, 24VDC, perfect for DIY projects, Robotics, Robot Arm, Automotive, Art, Commercial. These are a $250 value, brand new, bench tested, never used (overstock item).
Speed: 0.500 inches per second
Force: 40 pounds dynamic, 250 pounds static
Stroke: 4 inches (100mmm)