Screw Jack Systems provide comprehensive lifting and positioning design solutions for a wide selection of industries. Highly accurate and extremely dependable machine screw and ball screw jacks are matched with an considerable selection of drive, connection, movement control, safety, and protection components to supply a complete package from an individual source.
We offers system style assistance, taking the imagine work out of product selection. Our years of program 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 correct system components are built-into your design.
Worm Gear Screw Jack systems are ruggedly designed and stated in standard models with load managing capacities from 1/4 ton to 100 tons. They might 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 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 supported 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 products). The drive screw jack china sleeve can be 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 high strength bronze worm gear (drive sleeve). The worm shaft is backed on anti-friction tapered roller bearings with exterior seals provided to avoid loss of lubrication. The drive sleeve is certainly 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 Course 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 the application.