High-Performance Screw-Jack Gearboxes

High-Performance Screw-Jack Gearboxes offer clean, precise linear positioning by means of a ballscrew spindle driven by a worm gearbox.  Linear speeds up to 590 inches per minute with axial load capacities up to 22,500 lb.  For higher load capacities, two actuators can be used in tandem to share the loads.

Applications requiring precise, controlled linear motion with a high degree of safety are perfect for these drives.  Typical applications include sheet metal bending, hydraulic cylinder replacements, conveyor tensioning, and scissor-lift table drives.  Industries served include Material Handling, Automation and Automotive.

The actuators consist of a worm gearbox and motor, driving a ballscrew spindle.  The spindles can be directly driven or non-rotating, where the nut is driven instead (see Unit Styles below).  They are protected against contamination by bellows or protective tubes and are continuously lubricated with an automatic lubrication system.

These actuators also include safety devices to track the spindle travel position and any wear of the supporting nut. Additional safety can be realized with an internal safety nut in case of failure of the supporting nut.

If you have an application, please fill out our Application Sheet for our engineers to review.

Styles  |  PDF Catalog

To see dimensions of the units, click on the Unit Size in left column.

Unit Size	Ballscrew Spindle Size	Nominal Axial Force
HS10
	up to 32 x 20 mm	2,250 lb.
HS25
	up to 63 x 20 mm	5,625 lb.
HS50
	up to 63 x 20 mm	11,250 lb.
HS100
	80 x 20 mm	22,500 lb.

* Information is subject to change without notice.

Several unit styles are available, including lifting cylinder and rotating spindle:

Lifting Cylinder
Rotating Spindle