Screw Jack
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Acme Screw Jacks
Broad, solid Acme threads make these screw jacks better than ball screw jacks for weighty loads, intermittent positioning applications, and where vibration exists. Screw jacks arrive assembled, threaded, and prepared for hookup.Connect a motor or hand-crank shaft to the screw jack shaft to lift, hold,position, and level loads.
Travel distance per turn, also referred to as screw lead, is the distance a load moves with 1 revolution of the shaft.
Acme Screw Jacks with Mounting Plate
The mounting plate offers a flat work surface for supporting loads. Wide, strong Acme business lead screw threads make these screw jacks best for heavy loads, intermittent positioning applications, and where vibration exists. Connect a engine or hand-crank shaft to the screw jack shaft to lift,hold, placement, and level loads. Screw jacks arrive assembled, threaded, and prepared for hookup.
Travel distance per change, also referred to as screw lead, is the distance a load moves with a single revolution of the shaft.
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Ball Screw Jacks
Low-friction ball bearings allow these screw jacks to make use of half the 
energy required by an Acme screw jack to lift the same load. Typically used as actuators, they run at higher speeds than Acme screw jacks. They come assembled, threaded, and ready for hookup. Connect a engine or hand-crank shaft to the screw jack shaft to lift, hold, position, and level loads.
Travel distance per convert, also known as screw lead, may be the distance lots moves with a single revolution of the shaft.
Heavy Duty Screw Jacks
Long-term support for automotive repairs, construction projects, or bridge repairs is easily achieved with a screw jack from Northern Tool. Five- to 25-ton screw jacks adapt to practically any elevation you need. If you need a screw jack stand that is easily repositioned when needed, we’ve got you protected.
Worm gear Screw Jack
Surface Treatment
Annealing, organic anodization, heat therapy, polishing, nickel plating, znic plating,Black surface area painted etc.
Worm gear jack
Applications are varied and range between conveyor, elevator transfer to broad general commercial power transmission specialty applications with attachments