8×36WS Line Contact Wire Rope

8×36WS Line Contact Wire Rope Sizes:

8×36WS Line Contact Wire Rope Sizes

Nominal Diameter	Weight (kg/100m)			Nominal Tensile Strength of Rope (MPA)
				1570		1670		1770		1870		1960
				Minimum Breaking Load of Rope (kn)
(mm)	NF	SF	IWR/IWS	FC	IWR/IWS	FC	IWR/IWS	FC	IWR/IWS	FC	IWR/IWS	FC	IWR/IWS
8	22.98	22	27.9	29.3	34.7	31.2	36.9	33.1	39.1	35	41.3	36.7	43.4
9	29	27.8	35.3	37.1	43.9	39.5	46.7	41.9	49.5	44.3	52.3	46.5	54.9
10	35.9	34.4	43.6	45.8	54.2	48.8	57.6	51.7	61.1	54.7	64.6	57.4	67.8
11	43.3	42.6	52.7	55.5	65.5	59	69.7	62.6	73.9	66.2	78.2	69.5	82
12	51.5	49.5	62.8	66	78	70.2	83	74.5	88	78.7	93	82.7	97.6
13	60.4	58.1	73.6	77.5	91.5	82.5	97.4	87.4	103	92.4	109	97	114
14	70.1	67.4	85.4	89.8	106	95.6	113	101	120	107	127	112	133
16	91.6	88	111	117	139	125	148	132	156	140	165	147	173
18	116	111	141	149	176	158	187	168	198	177	209	186	220
20	143	138	174	184	217	195	231	207	224	219	258	230	271
22	173	166	210	222	262	236	279	250	296	265	313	278	328
24	206	198	251	264	312	281	332	298	352	315	372	330	390
26	242	232	295	310	367	330	390	350	413	370	437	388	458
28	280	270	342	360	425	384	453	406	480	429	507	450	531
30	322	310	392	414	488	440	520	446	551	493	582	516	610
32	366	352	446	471	556	501	591	531	627	561	662	588	694
34	414	398	504	532	628	565	668	600	707	633	747	663	784
36	464	446	565	596	704	634	748	672	793	710	838	744	878
38	517	497	630	664	784	706	834	748	884	791	934	829	979
40	572	550	698	736	869	782	924	830	979	876	1035	918	1085
42	631	607	769	811	958	863	1019	914	1080	966	1141	1013	1196
44	693	666	844	890	1051	947	1118	1004	1185	1060	1252	111	1312
46	757	730	922	973	1140	1035	1222	1090	1295	1150	1360	1215	1434
48	825	793	1004	1050	1251	1120	1331	1194	1411	1262	1490	1323	1562
50	895	860	1090	1150	1358	1223	1444	1296	1531	1369	1617	1435	1695
52	968	930	1179	1243	1468	1323	1562	1402	1655	1481	1749	1552	1833
54	1044	1003	1271	1341	1584	1426	1684	1512	1785	1597	1886	1674	1977
56	1122	1079	1367	1442	1703	1534	1812	1626	1920	1718	2029	1800	2126
58	1204	1157	1466	1547	1827	1646	1943	1744	2060	1843	2176	1931	2281
60	1288	1238	1570	1656	1955	1761	2080	1866	2204	1972	2329	2067	2441

What Is an 8x36WS Line-Contact Wire Rope, and Why Should You Care?

An 8x36WS is a high-performance wire rope with 8 strands. Its””Warrington Seal”” design and”” line contac”” build give it superior flexibility, crush resistance, and fatigue life. This makes it ideal for demanding crane, hoist, and winch applications where durability is critical.

I often talk to buyers like Mark, a business owner from the United States. He was frustrated because the hoist ropes on his cranes were wearing out way too quickly. He was using a standard 6-strand rope, thinking all wire ropes were more or less the same. I explained that the specific construction, like an 8x36WS, makes a huge difference. Understanding these details saved him a lot of money and prevented unexpected failures.Let’slook deeper into what makes this rope so special, so you can make a better choice for your business, too.

What Does the””8x36W”” Classification Actually Mean?

“8x6W”” means 8 strands of about 36 wires each in a Warrington Seale pattern. The”” gives flexibility,”3” indicates wire density for strength, and”W” specifies a durable wire arrangement. It’s a code for a robust, wear-resistant rope.

Let’s break down that code. It’s simpler than it looks and tells you everything about the rope’s design and purpose. When I’m helping a customer, I always start here. Each part of the name gives you a clue about how the rope will perform.

Breaking Down the Code

The name””8x36W”” is a technical shorthand.

• 8: This is the number of strands that are wrapped around the rope’s central core. Most standard ropes have 6 strands. Having 8 strands makes the rope more flexible and much more resistant to crushing on a winch drum.
• 36: This is the nominal number of individual wires in each strand. A higher number of wires generally indicates a more flexible rope.
• WS: This stands for Warrington Se. It’s a combination wire pattern within each strand that offers the best of both worlds. The outer wires are large (Seale pattern) to resist abrasion, while the inner wires have alternating sizes (Warrington pattern) to provide great flexibility.

Here’s a simple table showing what each part does for you.

Code Part	What it Means	Your Benefit
8	8 strands	Better flexibility and crush resistance.
36	~36 wires per strand	Good fatigue life and durability.
WS	Warrington Seale pattern	Excellent resistance to abrasion and internal wear.

This construction is not an accident. It is engineered for top performance in tough conditions.

Why Is” LineContact ” so importantt for Performance?

“Line contact” means wires in a strand touch along their length, not just at single points. This design spreads pressure, reduces internal friction and wear, and drastically increases the rope’s fatigue resistance. It simply lasts longer under heavy use and repeated bending.

The””W”” in therope’ss name creates what we call line contact. This is the most important feature for longevity. In simpler, older rope designs, the wires in different layers only touch at small points. Think of it like a pile of baseballs. All the weight rests on tiny points, creating high stress. This causes the wires to grind against each other and break down from the inside. This is called point contact.

An 8x36WS rope is different. Its wires are arranged to lie side by side along a continuous line. Imagine stacking logs instead of baseballs. The contact is spread out over a much larger area. This simple change has huge benefits for anyone buying the rope. It reduces internal stress, reduces friction, and prevents the wires from nicking and wearing each other out.

Here is a clear comparison.

Feature	Line Contact (e.g., 8x36WS)	Point Contact (e.g., standard 6×19)
Wire Contact	Wires touch along a line.	Wires cross and touch at points.
Internal Stress	Low	High
Internal Wear	Minimal	Significant
Fatigue Life	Excellent	Poor to fair
Best For	Dynamic loads, repeated bending.	Static loads, less demanding use.

When Mark switched his crane ropes to a line contact design, his replacement cycle went from every few months to over a year. The initial cost was slightly higher, but the long-term savings were massive.

What Are the Best Applications for an 8x36WS Wire Rope?

The 8x36WS excels in applications involving high bending stress and crushing forces. It is a top choice for main hoist lines on mobile and overhead cranes, winches, and various heavy-duty lifting operations where flexibility and extreme durability are essential.

Because of its unique design, this rope is a problem-solver for specific, demanding joYou wouldn’tn’tt use it for a simple garage door cabbut it’st’ss the perfect choice for high-value machinery where performance is everything.

Core and Applications

Most 8x36WS ropes come with an IWRC, which means Independent Wire Rope Core. The center of the rope is actually a smaller wire rope. This steel core provides immense strength, supports the outer strands, and strongly resists crushing when the rope is spooled onto a winch drum. A fiber core (FC) would offer more flexibilbut wouldn’tn’tt stand up to the crushing forces seen in heavy crane work.

This rope is the go-to choice for:

• Main Crane Hoist Lines: Their flexibility is ideal for running over multiple sheaves, and their fatigue resistance allows them to withstand thousands of lifting cycles.
• Winch Ropes: The 8-strand IWRC design is highly resistant to crushing, a common problem when rope is wound onto a drum under load.
• Drilling Rigs: It stands up to the harsh, repetitive work cycles found in the oil and gas industry.
• Heavy-Duty Overhead Lifting: For any application where the rope is constantly moving and under heavy load, the 8x36WS provides a longer service life and a greater margin of safety.

Choosing the right rope is not just about meeting a strength requirement.—It’ssabout matching therope’ss design to the demands of the job.