Fibre Rope Handling

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Deep Water Capstan

The Deep Water Capstan is a patented fibre rope handling machine developed specifically to tension and de-tension fibre ropes, cables and umbilicals without imparting significant forces into the cables. Available as 5t to 1,000t machines in single fall configurations.


  • Compact traction device
  • Light weight
  • Self-fleeting
  • Electric or hydraulic drive

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Fibre Rope Handling

The Deep Water Capstan comprises two separate drums merged and offset to each other around the rotational centreline to create a natural helix and a slightly elliptical cable path through the machine. Each drum has 16 “fingers” which provides the product bearing surface. This results in a unique binary tensioning/de-tensioning profile that spreads the work evenly through the product as it passes through the machine. After it emerges from the Deep Water Capstan, the product can be stored at low tension. A 150t variant of Parkburn’s Deep Water Capstan lies at the heart of MacGregor’s FibreTrac 1500 crane.

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