8×61FWS Class Round Strand Wire Rope

8×61FWS Class Round Strand Wire Rope

Product Introduction:

Engineered for heavy‑duty marine, offshore, and industrial hoisting applications, our 8×61FWS Class Round Strand Wire Rope (construction code 8×61FWS) delivers an optimal balance of strength, flexibility, and fatigue endurance. Manufactured in full compliance with GB/T 20067‑2006 — the Chinese national standard for large‑diameter steel wire ropes (40 mm to 160 mm) — this rope features an advanced 8‑strand design with 61 wires per strand, incorporating a Filler Wire Seale (FWS) construction.

The FWS (Filled Wire Seale) arrangement combines a Seale‑type outer layer with strategically placed filler wires between the inner and outer wire layers. This design increases the metallic fill factor, resulting in:

*Higher breaking strength for a given diameter compared to conventional constructions,

*Excellent resistance to abrasion and crushing due to the compact, smooth outer surface,

*Superior fatigue performance under repeated bending and sheave contact, and

*Reduced rotation and improved spooling thanks to the 8‑strand geometry, which inherently minimises torque and twisting during single‑fall lifting.

The 8‑strand configuration also provides a larger contact area with drums and sheaves, extending both rope and equipment service life — a critical advantage in high‑cycle marine operations.

Two core options are available to suit diverse operational environments:

*FC (Fiber Core) – offers natural elasticity and shock absorption, reducing peak dynamic loads and providing excellent flexibility for applications with frequent bending over small sheaves. The fibre core also retains lubricant effectively, lowering maintenance needs.

*IWR (Independent Wire Rope Core) – delivers a fully metallic core that maximises the rope’s metallic cross‑section, delivering superior crush resistance, the highest possible breaking loads, and outstanding performance in extreme tension and high‑pressure conditions. This option is ideal for deep‑sea mooring, heavy‑lift cranes, and towing hawsers.

Technical Specifications：

The rope is available with various surface finishes — bright, galvanised, or specially lubricated — to provide reliable corrosion resistance in marine environments. Custom lengths, reeling drums, and end terminations (sockets, thimbles, or swaged fittings) can be supplied to meet specific project requirements.

Typical Applications Include:

*Offshore platform cranes and pedestal cranes,

*Ship‑to‑ship mooring and towing systems,

*Floating production storage and offloading (FPSO) units,

*Shipbuilding gantry and floating cranes,

*Deep‑sea salvage and dredging operations,

*Heavy‑lift industrial hoists and mining excavators.

Every production batch undergoes stringent quality control — from raw material wire rod inspection to final proof‑load testing. Our ropes can be supplied with certifications from leading classification societies, including API‑9A, ISO 9001, CCS, ABS, DNV, LR, and CE, ensuring full traceability and compliance with international marine standards.

With its innovative FWS filler‑wire construction, robust 8‑strand design, and exceptional load‑carrying capacity, the 8×61FWS Class Round Strand Wire Rope is the trusted choice for professionals who require uncompromising reliability, longevity, and safety in the harshest offshore and industrial environments.