This 12 V micro-sized linear actuator with a 100:1 gear reduction can lift loads up to 4.3 kgf [9.4 lb or 42 N] and can withstand static loads up to 4 kgf [9 lb or 40 N]. It has a maximum speed of 17.6 mm/s [0.7″/s] at no load and 11.6 mm/s [0.5″/s] at the maximum load. Limit switches at each end make the actuator easy to control over its full range of motion. The shaft holds its position when unpowered. This version has a 30 mm [1.18″] stroke and no feedback potentiometer.