Glideforce LACT12P-12V-10 Light-Duty Linear Actuator with Feedback: 25kgf, 12" Stroke (11.8" Usable), 1.1"/s, 12V

This 12 V light-duty (LD) linear actuator with a 10:1 gear reduction can lift loads up to 25 kgf [55 lbs or 250 N] and can withstand static loads up to 250 kgf [550 lbs or 2500 N]. It has a maximum speed of 28 mm/s [1.1″/s] at no load and 23 mm/s [0.9″/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 12-inch stroke (11.8″ usable) and a feedback potentiometer that lets you determine where the actuator is in its stroke.