Screw Jack Systems offer 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 considerable range of drive, connection, movement control, safety, and protection components to supply a complete bundle from a single source.
We offers system style assistance, taking the imagine work out of product selection. Our years of application experience assures that elements of the look process are believed. We also offer full assembly drawings, which gives time saving value and guarantees the right system components are built-into your design.
Worm Gear Screw Jack systems are ruggedly designed and stated in standard versions with load managing capacities from 1/4 ton to 100 tons. They may be used separately or in multiple plans. There are no “regular” travel lengths and all Worm Gear Screw Jack systems are built to specification.
The jack housings are made of ductile iron and proportioned to support the rated capacity of the machine. MJ, 1/4 ton, and 1/2 ton models have aluminium housings.
Each Worm Gear Screw Jack incorporates an alloy metal worm which drives a 
higher strength bronze worm gear (drive sleeve). The worm shaft is backed on antifriction tapered roller bearings with external seals provided to avoid loss 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, depending upon jack configuration.
The Inch and Metric Worm Gear Machine Screw Jacks incorporate an alloy or stainless 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 prevent loss of lubrication. The drive sleeve is definitely 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 adhering to stringent manufacturing requirements, these screw jacks satisfy all the necessary safety, cost-efficiency, and toughness mandates of your application.