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U-Series

C-Series

subsea screw jack

Key Features

Proven depth ratings up to 3000m subsea as (deeper on request)
Pressure compensated or flooded designs available
Capacities up to 2000kN (200Te) as standard; up to 3500kN (3500Te) on request
Translating & Rotating screw configurations
Self-locking (the products only use power when moving)
Anti-rotation mechanism for axial positioning
Dual nut (safety nut) fail safe load-holding option
Full stainless steel designs available

Reinforced sealing
Full range of anti-corrosion options
ROV drive interfaces
6 Mounting Options including trunnion and double clevis
Low (-65°C) to high (+250°C) temperature solutions available
Vibration and shock load resistant designs
Full range of feedback devices for speed, position, rotation, wear and load monitoring control
Special custom designs available to meet your exact requirements

Useful Information

Typical Applications

U-Series subsea screw jacks can be used for a wide variety of subsea lifting, positioning and actuation solutions. Applications include pig launcher positioning, subsea caisson lifting, subsea riser positioning, riser release mechanism, mooring chain locking, connector release mechanism, TDU positioning and many more.

Ideal for replacing hydraulics.

Jacking Systems

Screw jacks can be connected together in complete subsea systems so that multiple units can be operated and controlled in unison. These subsea jacking system arrangements or configurations can be designed in lots of different formats using our complementary subsea products such as Range-U bevel gearboxes, motors, reduction gearboxes, drive shafts, couplings, bearing supports and motion control devices.

Multiple screw jacks connected in a mechanically linked system can mean that the complete system is considered self-locking. If you would like this checked please consult Power Jacks. Alternatively, to be sure, include a brake on the system.