Damen Maaskant Shipyards has delivered two dedicated offshore winches to Fugro, a supplier of survey and geotechnical related services.

The Dutch shipyard, part of Damen Shipyards Group, was responsible for the design, engineering and manufacturing of the two winches from its base in Stellendam, the Netherlands. Maaskant also worked very closely with Bosch Rexroth, which delivered the hydraulic drive system.

Classified by DNV GL, the two winches – a constant tension winch with an own weight of 2000 kg and a drilling winch (own weight 3500 kg) – have to meet high offshore standards.

Winch Characteristics

The drilling winch, type M1-H2-135, has a storage capacity of 230 m of steel wire with a diameter of 26 mm. It has a hauling and holding force of 13.5 tonnes but if required, this can be adjusted up to 18.5 tonnes, which is available on all layers of the wire. The range of hauling and veering speed is from 26 m/min up to 136 m/min. 

The hard tie winch, type M1-H1-60, has a drum storage capacity of 40 m of steel wire with a diameter of 22 mm. The winch has a Constant Tension Mode, which has precision accuracy, and a CT force between 0.2 tonnes and 2 tonnes. As well as the CT Mode, there is also a special Slipping Mode with an adjustable holding force of 7.5 tonnes available. Maximum speed during the CT Mode is 290 m/min up to 500 m/min in the Slipping Mode.

The two winches will be installed on Fugro’s MV Bucentaur, a deepwater drilling ship, in April.

Picture: Fugro Hard Tie Winch, type M1-H1-60.