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.