Your present location:Home >> Products >> Screw Jack >> Ball Screw jack RNK series >> Screw Jack RNK-2T
        • * Model: RNK-2T
        • * Screw Diam: 20 mm
        • * Screw Pitch: 5 mm
        • * Static Load: max 0.7 tons
        • * Dynamic Load: max 0.45 tons
        • * Speed Ratio: 1/5 1/10 1/20
        • * Lifting Speed: 75-1500 mm/min
        • * Input Power: 0.25-0.86 hp
        • * Max Input: 1500 rpm
        • * Screw Type: ball screw
        • * Stroke Range: max 300 mm
        • * Top End: top plate, clevis end, threaded end, plain end
        • * Power Source: electric, manual, both

        model diam. gear ratio 1800RPM 1500RPM 1200RPM 900RPM 600RPM 300RPM
        pitch input (HP) work
        load(kg)
        lifting speed (mm/min) input (HP) work load (kg) lifting speed input (HP) work load (kg) lifting speed input (HP) work load (kg) lifting speed input (HP) work load (kg) lifting speed input (HP) work load (kg) lifting speed
        RNK-2T 20mm
        P=5
         1/5  0.93 166 1800 0.86 183 1500 0.87 233 1200 0.84 300 900 0.62 333 600 0.5 333 300
         1/10  0.5 166 900 0.5 183 750 0.5 233 600 0.5 250 450 0.5 333 300 0.25 450 150
         1/20  0.5 200 450 0.5 233 375 0.5 300 300 0.5 400 225 0.25 450 150 0.25 450 75

        Installation & Spindle Screw Type

        Translating screw: A driven worm shaft acts on an internal worm gear, which in turn drives a lifting screw to extend or retract. As the lifting screw translates through cast iron housing, then worm gear and lifting screw rotate together. When the lifting screw is held to prevent rotation, the lifting screw will move linearly through the cast iron housing to move the load.
        Keyed screw: Some loads don’t prevent lifting screw rotation. These applications require a keyed screw jack. A key, fixed to the jack housing and inserted into a keyway milled into the lifting screw, forces the lifting screw to translate without rotating.
        Rotating screw: A lifting screw keyed to the worm gear as a single unit, forcing the lifting screw to rotate,but not translate. A traveling nut, attached to the load, is driven by the rotation of the lifting screw. This type jack is ideal for applications that can not accommodate a screw protective tube and save enough mounting space.

        1/5, fast speed, 1 turn 1 mm travel
        1/10, mid speed, 1 turn 0.5 mm travel
        1/20, low speed, 1 turn 0.25 mm travel
        About the relationship of gear ratio, load capacities, input power, input torque and input rpm, please return RNK-2T model.

        300: 300 mm travel stroke

        Accessories:
        N: Standard Jack,No additional accessories
        P: Steel Cover
        R: Rubber Bellow
        Y: Hand Wheel
        Other accessories,please check below picture