Screw Jack Systems provide comprehensive lifting and positioning design solutions for a wide selection of industries. Highly accurate and intensely reliable machine screw and ball screw jacks are matched with an intensive range of drive, connection, motion control, safety, and safety components to provide a complete package from an individual source.
We offers system style assistance, taking the guess work out of product selection. Our years of program experience assures that all elements of the design process are considered. We also offer complete 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 models 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 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 high strength bronze worm equipment (drive sleeve). The worm shaft is worm screw jack supported 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 devices). 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 supported on anti-friction tapered roller bearings with external seals provided to prevent loss 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 Course 2-C (Centralizing) tolerances. Jack lift shaft business 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 meet all the required safety, cost-efficiency, and durability mandates of your application.