Linear Actuators

High-Performance Screw-Jacks

High-Performance Screw-Jacks

High-Performance Screw-Jacks offer precise linear positioning and high dynamic performance by means of a servo-worm reducer and precision ballscrew spindle.  Linear speeds up to 590 inches per minute can be achieved with ballscrew diameters up to 50 mm and axial load capacities up to 22,500 lb.  For higher load capacities, two screw-jacks can be used in tandem to share the loads.

These screw-jacks are available in four sizes with rotating ballscrews and translating nut, or lifting cylinder design. Both designs can be used with 100% duty cycles. The ballscrew spindles are protected against contamination by bellows or protective tubes and are continuously lubricated with an automatic lubrication system.

Applications requiring precise, controlled linear motion with high dynamic performance are perfect for these drives.  Typical applications include sheet metal bending, hydraulic cylinder replacements, conveyor tensioning, and lifting table drives.  Industries served include Material Handling, Automation and Automotive.

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

  • Range Overview
  • Available Styles

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