Screw Jack Systems offer comprehensive 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 comprehensive selection of drive, connection, motion control, safety, and safety components to supply a complete package from a single source.
We offers system design assistance, taking the guess work out of item selection. Our years of application experience assures that all elements of the look process are considered. We also offer complete assembly drawings, which provides time saving value and guarantees the right system components are built-into your design.
Worm Equipment Screw Jack systems are ruggedly worm screw jack 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 arrangements. There are no “standard” travel lengths and all Worm Gear Screw Jack systems are built 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 metal worm which drives a higher strength bronze worm equipment (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 units). The drive sleeve is 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 worm which drives a high strength bronze worm gear (drive sleeve). The worm shaft is supported on anti-friction tapered roller bearings with external seals provided to avoid lack of lubrication. The drive sleeve is 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 Course 2-C (Centralizing) tolerances. Jack lift shaft 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 meet up with all the required safety, cost-efficiency, and strength mandates of your application.