We are manufacture and sale Manual Acme Worm Gear Screw Jack Screw Lift with Handwheel Vintage Industrial Crank Table Vintage Iron Crank Dining Table, Hand Operated Screw Jack Lift. hand crank acme shaft systems 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.
* 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.
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. A wide selection of types and models, high availability of ratios and Screw pitches, strokes on request assure a considerable range of selection and application. Screw Jacks are manufactured in the standard configuration Upright/Inverted Translating Screw with male, female Screw end or top plate, Upright/Inverted Rotating Screw with flanged nut. We do not have standard Work Screw length and each Screw Jack is manufactured following specific requirements. Screw Jacks are produced with the following characteristics: * Trapezoidal Work Screw or Ball Screw. * Worm Screw or two pinions Bevel Gears. * Manual or motor operation. * Combined with hydraulic cylinders. * Special types for tailored applications. * Standard execution foreseen screw jacks with Work Screw and Worm Screw with RIGHT thread. On request screw jack worm screw can be LEFT thread. * NOTE: Mechanical screw jacks are not to be used for personnel support or movement.
If you would like to learn more information and price about hand crank acme shaft systems, contact us today. Our teams are looking forward to working with you.