Manufacture and Sale Manual Mechanical Screw Jack Industrial Table Furniture Crank Table Base Crank Table Jack, hand crank screw jack for lifting tables, screw jack lifting system. hand crank screw driven vertical platform lift mechanism 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.
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.
* 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.
Mechanical jacks are absolutely irreversible, meaning they can support their loads with no need to employ brakes or other locking systems. The screw jacks can be deployed individually, or in groups connected properly with shafts, joints, and/or bevel gear boxes. They can be driven by electrical motors, with either alternating or direct current, as well as hydraulic or pneumatic motors. They can be driven manually, or with any other type of transmission. All screw jacks are available in a basic version and a travelling nut version, and can be supplied with either an upright or inverted spindle. Highly efficient manual jack with self-lock function. * Self-lock is possible from any position within the stroke, made from efficient bevel gear and trapezoidal screw. * Grease lubrication is standard for the reduction gear part, for smooth movements and use for long periods. * The screw shaft can be operated with a small number of handle rotations.
If you would like to learn more information and price about hand crank screw driven vertical platform, contact us today. Our teams are looking forward to working with you.