Want to build height adjustable crank tables, dining table, bar table, conference table etc by manual worm gear screw jack? Check how can we help you. We are manufacture and sale Hand Crank Worm Gear Jacks Crank Wheel Operated Screw Jack Adjustable Hand Crank Table Jack, Cast iron adjustable-height crank table bases. manual hand crank multiple screw jacks lift desk includes two 2.5 ton screw mechanisms for crank table base, four 2.5 ton screw mechanisms for crank table base, and two 5 ton screw mechanisms for crank table base. All our screw mechanisms have self-locking function, don't require any lock mechanism, they will hold and stop any position without turning hand crank.
* Crank Screw Lift Mechanism 2.5-Ton Kit with Two Lifting Points (Small-Size, or Normal Table Base) is consist of two pieces 2.5-ton screw mechanisms that support and adjust height, two pieces 200mm diameter handwheel (cast iron), two pieces couplings and one piece connecting rod.
* Crank Screw Lift Mechanism 2.5-Ton Kit with Four Lifting Points (Big, or Super-Big Table Base) is consist of four pieces 2.5-ton screw mechanisms that support and adjust height, two pieces 300mm diameter handwheel (cast iron), four pieces transmission gears, four pieces couplings and two piece connecting rods.
* Crank Screw Lift Mechanism 5-Ton Kit with Two Lifting Points (Normal, or Big Table Base) is consist of two pieces 5-ton screw mechanisms that support and adjust height, two pieces 300mm diameter handwheel (cast iron materials), two pieces couplings and one piece connecting rod.
Important Note: Avoid slow lifting speed, we provide double lead screw mechanism, which is two times faster than normal single lead screw mechanism. Important Note: Connecting rod length 36", 43", 48", 52", 60". Can be customized. Important Note: Height adjustment 8", 10", 12", 14", 16", 18", 20". Can be customized. Important Note: Handwheel diameter 6", 8", 10", 12", 16". Important Note: Paint color: no paint, black, blue, grey. Important Note: Available in electric motorized screw lift mechanism with single phase motor, dc motor or electric hand driller.
The screw jack is a device for lifting heavy loads by applying comparatively small at its handle. If the free shaft end of the motor is used as shaft for a slip-on emergency hand wheel, a device will be required that interrupts the power supply before the crank engages. Screw jacks come assembled, threaded, and ready for hookup. Connect a motor or hand-crank shaft to the screw jack shaft to lift, hold, position, and level loads.
Manual or optional working speed of screw jacks is chosen according to the table above. As for screw jacks that will be used for motors or reducers, the progress pace, X and Y type, will be determined by our company according to the selected features.
If you would like to learn more information and price about manual hand crank multiple screw jacks lift desk, contact us today. Our teams are looking forward to working with you.