Screw Jack Systems offer extensive screw jack china lifting and positioning style solutions for a wide selection of industries. Highly accurate and extremely dependable machine screw and ball screw jacks are matched with an intensive range of drive, connection, movement control, safety, and protection components to provide a complete package from a single source.
We offers system style assistance, taking the guess work out of item selection. Our years of program experience assures that elements of the design process are believed. We also offer complete assembly drawings, which gives time saving value and guarantees the correct system components are integrated into your design.
Worm Equipment Screw Jack systems are ruggedly designed and produced in standard models with load handling capacities from 1/4 ton to 100 tons. They may be used separately or in multiple plans. There are no “standard” travel lengths and all Worm Gear Screw Jack systems are built to specification.
The jack housings are made of ductile iron and proportioned to aid the rated capacity of the machine. MJ, 1/4 ton, and 1/2 ton models have aluminum housings.
Each Worm Gear Screw Jack incorporates an alloy metal worm which drives a high strength bronze worm equipment (drive sleeve). The worm shaft is supported on antifriction tapered roller bearings with exterior seals provided to prevent loss of lubrication (sealed radial bearings on the MJ, 1/4 , 1/2, and 1 ton units). The drive sleeve is definitely backed on antifriction tapered roller or ball thrust bearings. Rotation of the drive sleeve causes the lifting screw to translate or rotate, depending upon jack configuration.
The Inch and Metric Worm Gear Machine Screw Jacks incorporate an alloy or stainless steel worm which drives a high strength bronze worm gear (drive sleeve). The worm shaft is supported on anti-friction tapered roller bearings with exterior seals provided to avoid loss of lubrication. The drive sleeve is usually supported on anti-friction tapered roller or ball thrust bearings. Rotation of the drive sleeve causes the acme thread lifting screw to translate or rotate, dependant on jack configuration.
The threads are precision formed, typically using Class 2-C (Centralizing) tolerances. Jack lift shaft business lead tolerance is approximately ±0.004″ per foot.
Designed with state-of-the-art CAD and CAE systems and adhering to stringent production requirements, these screw jacks satisfy all the required safety, cost-efficiency, and durability mandates of your application.