... -1 ton, RN-2 ton, RN-3 ton, RN-5 ton, RN-10 ton, RN-15 ton, RN-20 ton, RN-30 ton, RN-40 ton, RN-50 ton, RN-100 ton ... ,Rolling.* Manual Operation and Electrical Operation are available.* Multiple Screw Jack Systems are availbale and fully synchronized.* Absolutely irreversible, they can ... Range 0.03 ~ 21.5 HP.* Trapezoidal Screw Diameters Range 20 ~100 mm;Screw Pitch Range 5 ~ 16 mm.* Max Linear ...