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Generic Linear Actuator: 12" Stroke, 12V, 1.5"/s

Vendor's Description: 

This 12 V linear actuator has a load rating of 22 lbs (10 kg) and a maximum speed of 1.5 in/s (40 mm/s). Limit switches at each end make the actuator easy to control over its full range of motion, and the worm drive ensures that the shaft will hold its position even when unpowered. This version has a 12-inch stroke and no potentiometer.