Screw Jacks

Power Jacks C-Series cubic screw jack feature a compact and versatile cubic housing. High reliability and performance are guaranteed with the same precision worm gear set and lead screw as our E-Series screw jack.

The design also include two integrated lubrication systems and over 140 million standard configurations. Capacities range from 10kN to 100kN with machine screw at present..

  Power Jacks classic E-Series screw jacks features a precision worm gear set, powerful lead screw, robust housing, two integrated lubrication mechanisms and a comprehensive range of options.

Capacity ranges from 5kN to 2,000kN as standard; as customiseddesign it can be up to 3,500kN. For low duty applications a machine screw jack is generally suitable. For higher duties ball screw jacks or roller screw jacks are available

Power Jacks classic  The U-Series screw jack is part of a specialist proposition from Power Jacks: a range of electro-mechanical subsea products specifically designed to operate at maximum efficiency in an underwater environment.

The U-Series Subsea Screw Jack has proven depth ratings of up to 3,000m and capacities up to 2,000kN as standard. On request they can go even deeper.

The Power Jacks M-Series     

Imperial (Inch) Single Face Machine Screw Jacks (mechanical actuators)

Capacities - 0.25 Ton to 250 Ton as standard

Translating and Rotating Screw in Upright and inverted types

2 Gear ratios and 1 screw lead as standard

Anti-backlash and anti-rotation (keyed) options

6 mounting options including trunnion and double clevis

Special custom designs available

The Power Jacks S-Series     

  High Performance Machine Screw Jack

50% greater duty cycle capabilities than the standard worm gear machine screw jack

Capacities from 25kN to 200kN as standard

Translating & Rotating Screw Configurations

Thermally Optimised Gearbox

Cubic gearbox design with cooling fins

Special Custom Designs

The Power Jacks A-Series     

   High accuracy, high temperature Anode Jack

Capacities from 100kN to 500kN as standard

Translating & rotating screw configurations

One piece forged rod end and lifting screw

Swivel designs for 3° of movement on screw

Upright or inverted designs

Motoriseddesigns

Designs to suit all types of reduction cell technology

Special custom designs

These jacking system arrangements or configurations can be built in many formats with the use of bevel gearboxes, motors, reduction gearboxes, drive shafts, couplings, Plummer blocks and motion control devices.