... 30T, 40T, 50T, 1Motorized Screw Jack. Motorized Screw Jack/Worm Gear Screw Jack/Worm Gear Screw Jack/Model: RN-0.5T ... Configuration: Worm and worm gear, bearing, housing and lead screw 3. Function: Elevating, Lowering, Pulling, Pressing, Pushing, ... , trunnion base, limit switches, coupling, link shafting. 8. Application: Machinery, metallurgy, construction, irrigation, chemical industry, health care, ...