Small size ball screw lifts combine the gear unit with a linear drive performed by a ball screw that, in comparison with the traditional acme screw, offers advantages of small volume and high efficiency.
Manual Screw Jack includes a worm gear screw jack and a handwheel or hand crank.
It is suitable for applications where
electricity or power generators is inconvenient or dangerous, light
weight, low duty cycle, low target cost and short travel length.