Hydraulic Jacking Systems for Liftboats
Certifications:
  • ABS, DNV GL, and Loyds depending on client specifications
  • Typically: ABS Rules for Building and Classing Mobile Offshore Drilling Units

Fast, Safe, and Powerful: Hydraulics and Electrics Do It All

You can’t sacrifice power for safety which is why safety has been at the core of every jacking system designed and supplied by SIT over the past 50 years. SIT (successor to Hydraquip Custom Systems) provides reliable design, components, and integration for liftboat jacking systems in varying capacities. Over the course of SIT’s history, it has provided 100 jacking systems on liftboats operating all over the world.

For the clients, the challenge is to find a supplier who can provide the safest and smoothest operating system in the industry, pass stringent quality certifications, and complete the projects in a short timeframe. Many clients decided that SIT’s worldwide reputation for similar projects made them the most obvious choice.

When the projects begin, SIT is set to complete the full range of work, from design, to manufacture, to commissioning, and all the way to follow-up service. Each jacking system is generally comprised of a centralized control console in the pilot house, hydraulic or electric power systems, and custom drivetrains. The drive trains consist of motors, braking, gearboxes, and climbing pinions, all designed to utilize a rack and pinion configuration for movement. Control of the raising and lowering of the legs and hull can be conducted either locally or from the pilot house controls. Progress is swift due to SIT’s many years of experience providing these systems; in fact, the work is practically second nature to seasoned SIT engineers.

When completed, the systems meet all Customer and 3rd party regulatory requirements. With SIT’s Hydraquip branded jacking system, the liftboat operator can move between locations quickly, help make the crew feel safer during jacking, win a greater number of contracts, and command a higher day rate on station. Further, SIT is equipped to keep up with the client’s changing market demands, which has transitioned from solely oil field service and support to the installation, service, and support of offshore windfarms. Every system can be upgraded for use to support vessels that install wind turbines.

Major Components:
  • Custom gearbox & climbing pinion (optimized to meet the needs of the application)
  • Hydraulic or electric motor and brake combination
  • Feedback sensors including those for speed, position, and load
  • Redundant power systems, which can include both hydraulic and electric, and which are generally located in close proximity to each leg
  • Custom designed PLC based electronic controls
    • Local control at each leg
    • Remote control at the pilot house console
    • Touchscreen HMIs to allow for ease of use
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