EuroWire March 2018

Corporate News

▲ ▲ The tower crane is designed for a 180º motion and has to withstand extreme conditions at sea

Solid stainless steel cable carrier

The cable carriers are positioned at the base of the crane, only a few metres above the water’s surface, and are therefore regularly fully exposed to salt water. At the same time, they have to function without interruption, even under extreme weather conditions. Another important factor is the high level of stability of the cable carriers, taking into account the ship’s motion. The overall solution developed by Tsubaki Kabelschlepp using 3D simulations meets all these requirements – demonstrably, as the cable carrier was tested extensively and deemed suitable during a factory acceptance test before commissioning.

With a lifting capacity of 420 tons, the innovative SHS Tower Crane from the Norwegian manufacturer AXTech allows installation and maintenance of subsea systems and technical equipment in the North Sea: with a motion radius of 180°, it can lift heavy equipment and systems from the ship’s deck and into the sea. A total of 15 hydraulic hoses with a working pressure of 450 bar ensure supply to the crane. Due to the rotating motion of the crane, it is necessary to guide the hoses during movement. This is ensured by a customised cable carrier from Tsubaki Kabelschlepp. The crane system is operated and maintained by TechnipFMC.

TSUBAKI Kabelschlepp has designed and implemented a solid stainless steel cable carrier including a support structure for a rotating tower crane from AXTech, used on the multi-function vessel North Sea Giant in the offshore business. The resulting solution takes into account the limited packaging spaces and extreme requirements of this application and has been used successfully for two-and-a-half years. This was made possible by close cooperation with the customer, advanced 3D simulations during the design engineering phase and, last but not least, extensive testing under realistic conditions.

Tsubaki Kabelschlepp – Germany Website : www.kabelschlepp.de

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March 2018