Screw Jack
A jackscrew, or screw jack, is a kind of jack that is operated by turning a leadscrew. It really is frequently utilized to lift moderately large weights, such as for example vehicles; to improve and lower the horizontal stabilizers of aircraft; and as adjustable supports for heavy loads, like the foundations of houses.
A screw jack contains a heavy-duty vertical screw with a load table mounted upon its top, which screws into a threaded hole in a stationary support body with a wide base resting on the floor. A rotating collar on the head of the screw offers holes into that your handle, a metallic bar, matches. When the manage is turned clockwise, the screw movements further from the base, lifting the load resting on the load table. In order to support huge load forces, the screw generally has either square threads or buttress threads.
An advantage of jackscrews over some other types of jack is they are self-locking, this means when the rotational force on the screw is removed, it’ll remain motionless where it had been left and will not rotate backwards, regardless of how much load it is helping. This makes them inherently safer than hydraulic jacks, for instance, that will move backwards under load if the power on the hydraulic actuator is certainly accidentally released.
Worm Screw Jack or screw lift lifts trusted in machine building, metallurgy, construction, irrigation devices and various other industries, is starting up, and dropped through add-ons advance, overturned and placement adjustment and other features in various altitudes. SWL is certainly a worm screw-lift crane parts foundation with compact structure, small size and light-weight. Sources extensive, no noise, easy installation, the usage of flexible, multi-function, helping forms, high reliability, extended life and many other advantages. Could be one or in combination, could be controlled accurately in accordance with certain procedures to improve or promote the adjustment of elevation Engine power can be utilized directly or can also be manually operated. It’s a type of structure and assembly, and the height can be customized user requirements
Screw jack is utilized in applications where linear movement is required. Lifting of any load, pressing or pulling of mechanical devices, adjusting of restricted clearances of mechanical parts can be done by screw jacks. Mechanical capability of screw jacks is definitely between 5kN and 2000kN. Jack screws can be used as linear motors, linear actuators, or mechanical lifts depending on type of motion.
How Screw Jacks Work ?
Main parts of screw jacks are; trapezoidal lifting screw, worm screw, worm equipment and gear casing. Worm screw is certainly rotated manually or by motor. Worm gear is usually rotated by worm screw. The lifting screw techniques through the rotating worm equipment. The linear motion acceleration of lifting screw 
depends on thread size and rotation ratio of worm gears.
In some models of jack screws, The lifting screw does not move up and down. It just rotates around its axis. A lifting nut (also referred to as travelling nut) techniques along the screw. The lifting nut of jack screw is made of bronze to decrease friction.
crew Jack Applications
Paper, press, printing industry
Gypsum factories
Sheet metal forming machinery
Mechanical lifting applications
Platform lifting applications
Food processing machinery
Construction sector
Bridge jacks for road and bridge lifting
Shipyards
Opening and closing of penstocks
Industrial process
Roll form machinery
Mining industry
Defense industry
Lift tables
Stage setup applications
Mechanical screw jacks can be operated by manually or by electric motor. Several screw jacks could be connected together to move simultaneously.
Mechanical Lifting and Pulling Screw Jacks These versions are used rather than hydraulic jacks where pushing and pulling is neeed between heavy components espacially in industrial building construction works, commercial machinery installations, bridge constructions.
Mechanical Lifting Screw Jack
Screw Jack
Materials Available
Stainless/Steel/Steel/Brass/Bronze/Iron/ Aluminum
OEM according to your request