United Kingdom

Select your location

United Kingdom


DC634 2013-03-28

Record-breaking Allseas special vessel lifts offshore platforms in one piece

Record-breaking Allseas special vessel lifts offshore platforms in one piece

Bosch Rexroth develops unique global drive and control solution.

As the major engineering partner to the Allseas Group, Bosch Rexroth has developed a drive and control system for the world’s largest mobile lifting mechanism for offshore installations. The special vessel equipped with this topside lifting system (TLS) known as ‘Pieter Schelte’, can lift and transport topsides of offshore platforms with a weight of up to 48,000 tons, all in one piece. This Allseas solution therefore considerably lowers the cost and risk of offshore assembly and disassembly. Pieter Schelte is currently being built in South Korea and will be ready for use in early 2014.

To disassemble topsides of offshore platforms, workers would traditionally have to manually disassemble the structure into individual parts whilst at sea – work that is both time consuming and hazardous. The new vessel from the Allseas Group will completely lift the platforms from their steel “jacket” and transport them onto land, making disassembly much safer and cost-effective.

For Allseas Group Owner Edward Heerema, the engineering from Bosch Rexroth is at the heart of the project: “We had to lay the foundation for all of the ship’s functions. That’s why nothing could be forgotten: all technical requirements have to be precisely met and all possible scenarios had to be run through.”

This is exactly why Bosch Rexroth was introduced to the project;maxmizing its comprehensive experience of designing and developing challenging drive and control solutions for offshore installations and maritime applications. An international team made of industry specialists and technology experts developed a TLS drive and control system, based on the principles as provided by Allseas. “No comparable system has ever been created before, making this an exciting task, even for our experienced engineers,” comments Allseas Project Manager Ron van den Oetelaar.

In complex co-simulations, Rexroth reviewed the design and dimensioning of major components with a continuous focus on adhering to high safety standards. The company-owned software takes both mechanic strengths as well as specific hydraulic characteristics into consideration. In addition to engineering products and services, Rexroth also supplies the five-megawatt central hydraulic power unit as well as numerous key components and subassemblies for the TLS. The new special vessel is currently being built in a South Korean shipyard and is set to begin disassembling the first offshore platforms in early 2014.


Search press releases


Melanie  Bright
15 Cromwell Road  
PE19 2ES Cambridgeshire
Phone: 01480 223 290

Related Articles

Press release

Wave industry leaders and Bosch Rexroth join forces to develop a standardised offshore power system

A number of leading wave energy firms have joined forces with global drive and control manufacturer Bosch Rexroth in a bid to create a standardised, self-contained offshore electricity generator for the wave industry.

Corporate Information

Bosch UK opens new £1.2 million state-of-the-art northern facility

Bosch UK has opened its new state-of-the-art facility designed to provide a single northern location for Bosch, which combines Bosch Rexroth, its industrial drives and controls company, and Worcester, Bosch Group, its heating and hot-water solutions company.