Product detail
High Performance Ropes
High performance ropes are built from high-modulus fibres — HMPE (Dyneema SK78 / SK99, Spectra), aramid (Twaron, Technora, Kevlar) and LCP (Vectran) — and reach the break load of steel wire at a fraction of the weight, with 1 - 4 % working elongation and no snapback energy stored in the line. They are used where crews must handle heavy mooring, towing or winch lines by hand, where a winch drum is weight-limited, and where a line has to hold station with almost no creep or stretch. Every rope is engineered as an assembly: fibre and coating chosen for the load case, spliced eyes, protective covers at the fairlead and a Line Design Break Force certificate.
- Fibres
- HMPE (SK78 / SK99), aramid (Twaron, Technora), LCP (Vectran)
- Construction
- 12-strand and 12x12 braid, coated; optional braided cover
- Diameter range
- 6 mm - 120 mm
- Break load
- Up to and beyond equivalent-diameter steel wire
- Elongation at break
- 1.5 % (aramid / LCP) to 3 - 4 % (HMPE)
- Weight
- Around 1/7 of steel wire of the same break load
- Coating options
- Abrasion, heat and grip coatings; polyester chafe covers
Applications
- Wire rope replacement on mooring and towing winches
- Escort and emergency towing lines, pennants and stretchers
- Offshore and heavy lift slings, crane and pull-in lines
- Yacht running rigging, halyards, sheets and dock lines
Standards
- ISO 10325 (HMPE fibre ropes)
- ISO 2307 (break load and elongation testing)
- OCIMF MEG4 LDBF and line management documentation
- DNV / Lloyd's / BV certification on request
- HMPE creeps under sustained high load and softens near 145 - 150 C — keep drum friction and surge under control.
- Aramid and LCP must be covered: bare fibre loses strength in sunlight.
- High performance lines are low-stretch, so shock loading is taken by the fittings — check bollard, chock and winch ratings before switching from nylon or wire.
Figures are typical values for the fibre type. Exact break loads, weights and tolerances are stated on the certificate supplied with each rope.