... , 15T, 20T, 30T, 40T, 50T, 1Motorized Screw Jack. Motorized Screw Jack/Worm Gear Screw Jack/Worm Gear Screw Jack/Model: RN-0.5T, 1T ... 2. Configuration: Worm and worm gear, bearing, housing and lead screw 3. Function: Elevating, Lowering, Pulling, Pressing, Pushing, Rotating 4. Power ... Duty: Static Loading: 0.5 ton ~ 100 ton (per set) Dynamic Loading: 0.1 ton to 26 ton (per set) 7 ...