Screw Jacks built to last.
Motion Werkz supply Nook Industries ActionJac™ Worm Gear Screw Jack systems. The systems are built to last with a basic model range that accommodates loads from 1/4 tonne to 100 tonnes. You can use them separately or combine them in various ways. All Worm Gear Screw Jacks are custom made to order, so there are no “standard” travel distances

ACTIONJAC™ WOrM GEAR BALL SCREW JACKS
Hardened alloy steel ball screws and nuts with hardened bearing balls carry the load in worm gear screw jack. Rolling minimises friction between the nut and screw, allowing load movement smoothly. Ball screws function at faster speeds and duty cycles than Machine Screw Jacks due to their efficiency and rolling action.
- Improved speed, force, duty cycle, acceleration
- Longer life cycle (low friction)
- Requires less motor power
- Greater positioning accuracy
- Higher dynamic loads

INCH AND METRIC WORM GEAR MACHINE SCREW JACKS
ActionJac worm gear machine screw jacks integrate an alloy or stainless steel worm that powers a high-strength bronze worm gear (drive sleeve). External seals minimise lubrication loss on anti-friction tapered roller bearings supporting the worm shaft. Drive sleeve bearings are anti-friction tapered roller or ball thrust.
- Low noise (no rolling components)
- Ideal for vertical and light loads
- Pre-loaded nut assembly reduces backlash
- Safe for static loads
- Lower cost

ACTIONJAC™ STAINLESS STEEL MACHINE SCREW JACKS
Excellent for places where corrosion resistance is a priority. All external components are manufactured from 300 series Stainless Steel materials.
- Stainless steel work with high-strength bronze drive sleeve
- Load capacities from 590Kg – 10.432T (1,300 to 23,000 lbs)
- A 17-4PH hardened worm is available for a 300% increase in capacity
- Uses include cold storage facilities

BEVEL GEAR BALL SCREW JACK
A hardened alloy steel ball screw and nut are used in ActionJac™ ball screw jacks, with hardened bearing balls transferring force between the nut and screw.
- Smooth and efficient movement of the load.
- Operates at higher speeds or increased duty cycle when compared with the Machine Screw Jack
- Reduced required input torque.
- Available with optional accessories such as boots, top plates, and clevis mounts

BEVEL GEAR MACHINE SCREW JACKS
Standard models are built to last, and their load capacities range from 12.3 kilonewtons to 117 kilonewtons. You can use them separately or combine them in various ways.
- No “standard” travel lengths.
- Each screw jack is built to specification
- High lifting speed and greater duty cycle.
- Incorporate a trapezoidal acme screw that conforms to DIN 103 standard.

SCREW JACK ACCESSORIES
Various optional extras are available to suit a wide variety of uses. We have a wide variety of screw jack accessories, such as motor mounts, limit switches, and lubricants, to meet your linear motion requirements.