screw jack

Screw Jack Systems provide comprehensive lifting and positioning style solutions for a wide selection of industries. Highly accurate and extremely reliable machine screw and ball screw jacks are matched with an extensive selection of drive, connection, movement control, safety, and security components to supply a complete bundle from an individual source.

We offers system style assistance, taking the guess work out of item selection. Our years of program experience assures that all elements of the design process are believed. We also offer full assembly drawings, which provides time saving value and guarantees the correct system components are built-into your design.
Worm Equipment Screw Jack systems are ruggedly designed and stated in standard versions 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 from 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 avoid lack of lubrication (sealed radial bearings on the MJ, 1/4 , 1/2, and 1 ton systems). 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, 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, depending upon 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-artwork CAD and CAE systems and sticking with stringent production requirements, these screw jacks meet up with all the required safety, cost-efficiency, and sturdiness mandates of the application.