Screw Jack Systems provide extensive lifting and positioning design solutions for a wide variety of industries. Highly accurate and intensely reliable machine screw and ball screw jacks are matched with an comprehensive selection of drive, connection, motion control, safety, and protection components to supply a complete package from a single source.
We offers system style assistance, taking the guess work out of item selection. Our 
years of software experience assures that all elements of the look process are believed. We also offer complete assembly drawings, which provides time saving value and guarantees the correct system components are integrated into your design.
Worm Gear Screw Jack systems are ruggedly designed and stated 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 designed 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 steel worm which drives a high strength bronze worm gear (drive sleeve). The worm shaft is backed 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 systems). The drive sleeve is certainly supported on antifriction tapered roller or ball thrust bearings. Rotation of the drive sleeve causes the lifting screw to translate or rotate, dependant on jack configuration.
The Inch and Metric Worm Gear Machine Screw Jacks incorporate an alloy or stainless steel worm which drives a higher strength bronze worm gear (drive sleeve). The worm shaft is backed on anti-friction tapered roller bearings with exterior seals provided to avoid lack of lubrication. The drive sleeve can be 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 lead tolerance is approximately ±0.004″ per foot.
Designed with state-of-the-art CAD and CAE systems and sticking with stringent production requirements, these screw jacks fulfill all the required safety, cost-efficiency, and sturdiness mandates of your application.