Your present location:Home >> Products >> Screw Jack >> Machine Screw Jacks RN series >> Screw Jack RN-30T
        • * Model: RN-30T
        • * Screw Diam: 75 mm
        • * Screw Pitch: 12 mm
        • * Static Load: Max 30 tons
        • * Dynamic Load: Max 9.6 tons
        • * Speed Ratio: 1/12 1/18 1/36
        • * Lifting Speed: 75-1500 mm/min
        • * Input Power: 1.61-4.86 hp
        • * Max Input: 1500 rpm
        • * Screw Type: trapezoidal screw
        • * Stroke Range: Max 5000 mm
        • * Top End: top plate, clevis end, threaded end, plain end
        • * Power Source: Electric, Manual, Both

        model
        diam.
        static load (ton)
        gear ratio
        travel stroke/turn
        (mm)
        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 
        RN-30T 75mm
        P=12
        30 1/12 1 4.86 1850 1800 4.71 2150 1500 4.55 2600 1200 4.27 3250 900 3.94 4500 600 2.8 6400 300
        1/18 2/3 3.56 1900 1200 3.59 2300 1000 3.44 2750 800 3.28 3500 600 2.94 4700 400 2.09 6700 200
        1/36 1/3 2.22 2200 600 2.19 2600 500 2.15 3200 400 1.97 3900 300 1.82 5400 200 1.61 9600 100

        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.

        1/12, fast speed, 1 turn 1 mm travel
        1/18, mid speed, 1 turn 0.667 mm travel
        1/36, low speed, 1 turn 0.333 mm travel
        About the relationship of gear ratio, load capacities, input power, input torque and input rpm,
        please return RN-30T 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