Complex winch with lots of details

Umbilical winch for Leg Encircling Crane

Not long ago we have shipped a beautiful umbilical winch with a pulling load of 66kN which will be used on a leg encircling crane on a huge windmill installation vessel. Together with a local partner the complex winch, with very demanding details, was engineered,built and tested in The Netherlands.

The winch will be driven with a 4 stage, Dinamic Oil planetary winch gearbox which was assembled and tested in our workshop in Venlo. The gearbox is prepared to be used with oil cooling system and was supplied with PT100 sensor in the input to monitor the oil temperature. Between the gearbox input shaft and brake motor, a steel flexible coupling with a 3 layer offshore coating was installed to work in this cold and harsh environment.

With a holding force of 140kN on a pitch diameter of 1227mm, this winch had a total weight incl. brake motor of a bit less than 4.000kg and a length of more than 3,3 meters.

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