Manufacture and Sale Hand Crank and Manual Screw Jack with Lost Cost Industrial Metal Crank Table Base Natural Metal Finish, Industrial Crank Cafe Table, hand crank adjustable desk. hand crank synchronization lifting 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.
* 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.
JACTON Industry worm gear screw jacks are manufactured for loads from 2.5 to 500 kN. All models are designed for both pushing and pulling forces, and for position-independent functioning. The cubic housing, standardised mounting material and end-pieces, and pre-drilled flange holes permit the ideal installation of motor, gears and shaft encoder. Synchronization of several worm gear screw jacks is simple with the complete range of accessories.
The worm gear screw jack is conveniently lubricated at one point. Maintenance – whether manual or automatic – is easy. Worm gear screw jacks with trapezoidal screw produce an advance of 1 mm for each revolution of the worm shaft. The linear speed is 1500 mm per min at 1500 RPM. Worm gear screw jacks with ball screws achieve between 1071 mm per min and 2124 mm per min, depending on size and lead. Worm gear screw jacks with trapezoidal screw produce an advance of 0.25 mm for each full revolution of the worm shaft. That is, the linear speed is 375 mm per min at 1500 RPM. Worm gear screw jacks with ball screws achieve between 312 mm per min and 535 mm per min, depending on size and lead. Please note that higher speeds of travel can be achieved with larger screw pitches or multiple start screws. The worm gear screw jack's maximum drive speed (standard grease lubrication) of 1500 RPM must not be exceeded. The higher efficiency of the ball screw drive also permits a longer duty cycle. In addition to the extensive standard range, anticlockwise, multi-start and special material worm gear screw jacks can be supplied upon request.
If you would like to learn more information and price about hand crank synchronization lifting platform, contact us today. Our teams are looking forward to working with you.