8×61 Class Round Strand Wire Rope

Product Description

8×61 Class Round Strand Wire Rope

Product Introduction:

Engineered for the absolute pinnacle of marine heavy-lifting and mooring demands, our 8×61 Class Round Strand Wire Rope is a colossal, ultra-high-strength cable manufactured in strict accordance with the GB/T 20067-2006 standard. Featuring a distinct 8-strand construction with 61 wires per strand, this rope provides substantial performance advantages over traditional 6-strand designs, including a higher metallic fill factor, superior torque balance, and inherent anti-rotation capabilities. It is the definitive choice for securing the world's largest vessels and operating the most extreme maritime lifting equipment.

Construction Details & Core Options:

The 8×61 configuration ensures excellent flexibility even at massive diameters, allowing for smooth operation over large sheaves. As shown in our standard configurations, this heavy-duty rope is offered with two distinct core types to meet specific operational stresses:

*8X61 + FC (Fiber Core): Built with a premium synthetic fiber core. This variant offers outstanding shock absorption and enhanced flexibility. It is highly recommended for towing lines and general mooring applications where the rope needs to remain pliable and absorb sudden dynamic loads.

*8X61 + IWR (Independent Wire Rope Core): Constructed with an independent steel wire strand core. This variant boasts exceptional resistance to radial compression and crushing, making it the ideal choice for heavy multi-layer spooling on winch drums and deep-sea positioning where severe internal pressure is unavoidable.

Technical Specifications：

Construction: 8×61+FC,8×61+IWR
Standard: GB/T 20067-2006
Nominal Diameter	Approx.Weight		Minimun Breaking Load of Rope(KN)
mm	Kg/100m		1670MPa		1770MPa		1870MPa		1960MPa
D	FC	IWR	FC	IWR	FC	IWR	FC	IWR	FC	IWR
80	2280	2660	2680	3170	2840	3360	3000	3550	3150	3730
82	2390	2790	2820	3340	2990	3530	3160	3730	3310	3910
84	2510	2930	2960	3500	3130	3710	3310	3920	3470	4110
86	2630	3070	3100	3670	3290	3890	3470	4110	3640	4310
88	2760	3210	3250	3840	3440	4070	3630	4300	3810	4510
90	2880	3360	3400	4020	3600	4260	3800	4500	3980	4720
92	3010	3510	3550	4200	3760	4450	3970	4700	4160	4930
94	3150	3670	3700	4380	3930	4640	4150	4910	4350	5140
96	3280	3820	3860	4570	4090	4840	4330	5120	4530	5360
98	3420	3990	4030	4760	4270	5050	4510	5330	4720	5590
100	3560	4150	4190	4960	4440	5260	4690	5550	4920	5820
106	4000	4660	4710	5570	4990	5910	5270	6240	5530	6540
110	4310	5020	5070	6000	5380	6360	5680	6720	5950	7040
116	4790	5580	5640	6670	5980	7070	6320	7470	6620	7830
120	5130	5980	6040	7140	6400	7570	6760	8000	7080	8380
126	5650	6590	6650	7870	7050	8350	7450	8820	7810	9240
130	6020	7010	7080	8380	7510	8880	7930	9390	8310	9840
136	6580	7680	7750	9170	8220	9720	8680	10200	9100	10700
140	6980	8130	8220	9720	8710	10300	9200	10900	9640	11400
146	7590	8850	8940	10500	9470	11200	10000	11800	10500	12400
150	8010	9340	9430	11100	10000	11800	10500	12500	11000	13100
156	8660	10100	10200	12000	10800	12800	11400	13500	11900	14100
160	9110	10600	10700	12700	11300	13400	12000	14200	12600	14900
166	9810	11400	11500	13600	12200	14500	12900	15300	13500	16000
170	10200	12000	12100	14300	12800	15200	13500	16000	14200	16800
176	11000	12800	13000	15300	13700	16300	14500	17200	15200	18000
180	11500	13400	13600	16000	14400	17000	15200	18000	15900	18800
186	12300	14300	14500	17100	15300	18200	16200	19200	17000	20100
190	12800	15000	15100	17900	16000	19000	16900	20000	17700	21000
196	13600	15900	16100	19000	17000	20200	18000	21300	18900	22300
200	14200	16600	16700	19800	17700	21000	18700	22200	19600	23300

Primary Marine & Industrial Applications:

Given its massive diameter, enormous breaking strength, and anti-torsion 8-strand design, this heavy-lift rope is exclusively deployed in:

*VLCC (Very Large Crude Carrier) and mega-bulk carrier mooring systems.

*Ocean-going salvage and offshore towing operations.

*Ultra-large heavy-lift floating crane rigging and port-side mega-hoisting.

*Deep-sea offshore semi-submersible platform anchor lines.

*Massive multi-layer drum winch installations requiring zero-twist performance.

Handling & Maintenance Guidelines:

Due to the exceptional weight (up to 166 kg per meter for the 200mm IWR variant), specialized installation teams, heavy-duty grooved sheaves, and motorized reel spoolers are mandatory for safe handling. Strict adherence to regular lubrication schedules is vital, particularly for the internal steel strands of the +IWR core, to prevent internal fretting fatigue and extend service life under the immense tension of extreme marine environments.

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