Wire Rope Cable

Discover JULI’s extensive wire rope cable range, engineered for strength, durability, and versatility in lifting, hoisting, towing, and rigging applications. Choose from galvanized, fiber-core, shaped strand, compacted and specialty wire ropes to meet diverse industrial and marine needs.

Contact us today to get expert support and a customized solution.

Precision Manufacturing & Engineering Excellence

At Juli Slings, our cable wire are not just products; they are engineered systems. With an annual capacity of 100,000 tons, we combine 40 years of metallurgical expertise with advanced coating and stranding technologies to ensure every rope exceeds international safety standards.

Advanced Manufacturing Processes

We utilize specialized treatments to enhance the service life and performance of our wire ropes in extreme environments:

• Galvanizing (Hot-Dip & Electro): A metallurgical bond of zinc is applied to provide superior cathodic protection against saltwater and industrial oxidation.

• Phosphating (Smooth/Bright): The “Smooth” finish is treated with a phosphate coating to reduce friction between wires, significantly improving fatigue life and preventing internal rusting during storage.

• Compacting (Strand Compacting): The outer strands are run through a compacting die, increasing the metallic cross-section and providing a smoother surface to reduce wear on sheaves and drums.

• Lubrication Systems: We utilize specialized high-performance lubricants (A1 to A3 grades) tailored for either high-heat (metallurgy) or high-flexibility (cranes) applications.

Comprehensive Rope Construction & Selection Matrix

Choosing the right construction is critical for operational safety and equipment longevity. Juli Slings provides engineered solutions ranging from general-purpose 6-strand ropes to high-tech multi-layer and compacted strands.

Series Type	Construction	Flexibility	Abrasion Resistance	Best For
Standard 6-Strand	6×25Fi (Filler)	High	Moderate	Hoisting: Blast furnace and heavy-duty crane main lines.
Standard 6-Strand	6×26WS / 6×37S	Moderate	High	Drilling: Petroleum rigs and shipping handling (Seale).
High-Flexibility	6×31WS / 6x36WS	Very High	High	Marine: Salvage, tow boats, and high-frequency cargo nets.
Heavy-Duty/Special	6×49SWS / 6x55SWS	High	Ultra-High	Specialized: Extra-large capacity cranes and heavy-lift salvage.
Non-Rotating	35(W)×7 / 19×7 / 18×7	Very High	Moderate	Tower Cranes: High-lift operations requiring zero load spin.
Compacted (K)	6xK36 / 8xK36 / 35(W)xK7	High	Superior	Longevity: Reducing drum wear and increasing breaking loads.
Shaped Strand (V)	6×V25 / 4×V39	Moderate	Extreme	Mining: Shaft lifting and heavy-duty industrial dragging.
Single Twist	1×7 / 1×19 / 1×37	Low	High	Structural: Guy wires, stay cables, and electrical earth wires.

Advanced Rope Engineering: High-Performance Series

Juli Slings engineers six distinct architectural categories. Each cable wire rope series is designed to solve specific mechanical challenges in the most demanding industrial environments.

Specialized Multi-strand & High-Fill Series

• Structural Logic: Advanced constructions like 6x49SWS or 6x61M feature an exceptionally high wire count within each strand.

• Performance Advantage: This architecture provides a “cushioning” effect and extreme flexibility for extra-large diameter pulleys. These ropes are specifically reserved for massive salvage operations and specialized heavy-lift derricks.

Rotation-Resistant & Multi-layer Series (The Non-Rotating Series)

• Structural Logic: Engineered with multiple layers of strands laid in opposite directions (e.g., 35(W)x7, 18×7, 19×7). The opposing lay directions cancel out internal torque, preventing the load from spinning during high-lift operations.

• Primary Application: Essential for high-rise tower cranes, mobile cranes, and offshore winch systems where load stability is a safety priority.

Compacted Strand Series (The High-Density “K” Series)

• Structural Logic: Through specialized die-drawing or roller-compacting, we flatten the outer wires of the strands (e.g., 6xK36, 8xK36, 18xK19).

• Performance Advantage: This process increases the metallic cross-section for higher breaking loads and provides a smoother contact surface. It significantly reduces internal wear and prevents “drum crushing” in multi-layer spooling.

Shaped Strand Series (The “V” / Triangular Series)

• Structural Logic: Unlike traditional round strands, the 6xV25 (Triangular) and 4xV39 (Shaped) series use a non-circular strand geometry to maximize surface contact.

• Performance Advantage: The increased contact area with sheaves and drums minimizes friction-induced wear. These are the gold standard for heavy-duty friction hoisting in deep-well coal mines and inclined shafts.

Standard Single-layer & General Purpose Series

• Structural Logic: The workhorse of the industry, featuring a single layer of strands (e.g., 6x25Fi, 6x26WS, 6x36WS) over a fiber or steel core.

• Performance Advantage: Offers a predictable balance between bending fatigue resistance and abrasion protection. These are highly versatile for metallurgical cranes, petroleum drilling, and general industrial hoisting.

Single Twist Series (High-Tensile Structural Cables)

• Structural Logic: Designed as a single, thick strand (e.g., 1×7, 1×19, 1×37) rather than multiple strands twisted together.

• Performance Advantage: Engineered specifically for static tension rather than dynamic bending. This construction provides maximum linear strength and minimal stretch, ideal for bridge stay cables, telecommunication guy wires, and electrical earth wires.

Technical Specifications

• Diameter Range: 16mm to 100mm (Custom orders up to 260mm available).

• Tensile Strength: 1570Mpa to 2160Mpa (High-tensile grades for deep-sea and deep-mining).

• Compliance: Fully compliant with API, EN, GOST, and GB/T20118 standards.

• Testing: Every reel is issued with an Authoritative Testing Report covering breaking load and coating thickness.

Strategic Industry Applications

• Metallurgical Engineering: Blast furnace hoisting and steel heat transfer machinery.

• Petroleum & Energy: Onshore and offshore drilling lines.

• Marine & Salvage: Tow boat lines, salvage ropes, and cargo nets.

• Mining: Vertical and inclined shaft lifting systems.

Steel Wire Rope Professional Selection Guide: The Engineering Standard

Selecting the optimal rope is a balance of tensile strength, fatigue resistance, and abrasion shielding. As a premier Steel Wire Rope manufacturer, Juli Slings provides this comprehensive guide to help project managers and engineers optimize safety and service life.

Mechanical Performance: Strength vs. Flexibility

The core trade-off in rope engineering is between the number of wires and their individual diameter.

• The Flexibility Rule (Bending Fatigue):

  • Recommended: 6x36WS, 6x31WS, or 35(W)x7.

  • Logic: Ropes with more, thinner wires (e.g., 36 wires per strand) are more supple. They withstand frequent bending over sheaves and drums without developing fatigue cracks.

• The Abrasion Rule (Wear Resistance):

  • Recommended: 6×19S, 6x26WS, or 6xV25 (Shaped Strand).

  • Logic: Ropes with fewer, thicker outer wires offer a larger wear surface. These are essential for dragging, mining, and environments with high mechanical friction.

Structural Architecture: Choosing the Right Core

The “inner heart” of the rope determines its reaction to heat and pressure.

• IWRC (Independent Wire Rope Core): * Best For: High-heat environments (Steel Mills), heavy-lift derricks, and multi-layer spooling.

  • Advantage: Provides maximum structural stability and resists “crushing” when the rope is tightly wound on a drum under load.

• FC (Fiber Core – Natural or Synthetic): * Best For: Standard overhead cranes and general hoisting.

  • Advantage: Excellent flexibility and self-lubricating properties, as the fiber core acts as a reservoir for rope grease.

Advanced Solutions for Critical Challenges

For specialized operations, standard 6-strand ropes may not suffice. Juli Slings offers high-performance alternatives:

• Challenge: Load Spinning during High Lifts

  • Solution: Non-Rotating / Rotation-Resistant Series (e.g., 35(W)x7, 19×7). The counter-layered strands cancel out torque, ensuring the load remains stable at extreme heights.

• Challenge: Premature Drum Wear & Low Breaking Loads

  • Solution: Compacted Strand Series (The “K” Series). By flattening the outer wires, we increase the metallic cross-section and provide a smoother contact surface, reducing the “sawing” effect on sheaves.

• Challenge: Extreme Friction in Mining Shafts

  • Solution: Shaped Strand Series (The “V” Series). Triangular strands provide a massive surface contact area, dispersing pressure and drastically extending rope life in friction-hoist systems.

Environmental Processing & Coatings

• Galvanized (Hot-Dip/Electro): The mandatory choice for Marine Engineering and offshore energy. It provides a cathodic zinc barrier against saltwater corrosion.

• Smooth/Bright (Phosphated): Best for indoor industrial use and elevators. Offers high cost-efficiency and excellent fatigue life when maintained with proper lubrication.

• PVC/Polymer Coating: Used for extra protection against fine particulates (mining) or to prevent damage to the handled cargo.

Application Reference

Industrial Sector	Primary Requirement	Top Recommendation
Tower Cranes	Zero-torque, High-lift	35(W)xK7 / 18×7
Petroleum Drilling	Crush resistance, Tension	6x26WS + IWRC (API Standard)
Port Container Cranes	High speed, High cycles	8xK36 / 6xK36 (Compacted)
Underground Mining	Abrasion, Safety factor	6xV25 / 4xV39 (Shaped Strand)
Stay/Guy Cables	Static tension, Low stretch	1×19 / 1×37 (Single Twist)

Specification

Round Strand Wire Rope
Rope   Type	Typical Construction		Rope Diameter(mm)	Rope Type	Typical Construction		Rope Diameter(mm)
	Wire Rope	Strand			Wire Rope	Strand
Single-strand wire rope	1×7	（1+6）	6~16	6×24	6×24S	(FC+12+12)	14~44
	1×19	（1+6+12）	10~30		6×24W	(FC+8+8/8)	14~44
	1×37	（1+6+12+18）	14~42	8×19	8×19S	(1+9+9)	16~50
	1×61	（1+6+12+18+24）	20~54		8×19W	(1+6+6/6)	16~50
	1×91	（1+6+12+18+24+30）	30~66		8×25Fi	(1+6+6F+12)	18~56
	1×127~1×631	—	50~160		8×26WS	(1+5+5/5+10)	16~54
6×7	6×7	（1+6）	6~36		8×31WS	(1+6+6/6+12)	16~60
6×19(a)	6×19S	(1+9+9)	12~42	8×37(a)	8×36WS	(1+7+7/7+14)	18~108
	6×19W	(1+6+6/6)	12~42		8×41WS	(1+8+8/8+16)	28~120
	6×25Fi	(1+6+6F+12)	16~42		8×49SWS	(1+8+8+8/8+16)	40~120
	6×26WS	(1+5+5/5+10)	16~42		8×55SWS	(1+9+9+9/9+18)	40~124
	6×31WS	(1+6+6/6+12)	18~42	8×37(b)	8×37	(1+6+12+18)	60~86
6×19(b)	6×19	(1+6+12)	9~46	8×61(a)	8×61FWS	(1+5+5F+10+10/10+20)	60~136
6×37(a)	6×29Fi	(1+7+7F+14)	18~64		8×64SFS	(1+9+9+9F+18+18)	60~124
	6×36WS	(1+7+7/7+14)	16~90	8×61(ab)	8×65FNS	(1+6+6F+12-20+20)	60~140
	6×41WS	(1+8+8/8+16)	38~100		8×80WSNS	(1+7+7/7+14-22+22)	50~158
	6×49SWS	(1+8+8+8/8+16)	38~100		8×84WSNS	(1+7+7/7+14-24+24)	60~172
	6×55SWS	(1+9+9+9/9+18)	38~100	8×91(ab)	8×111SWSNS	(1+9+9+9/9+18-28+28	60~156
	6×37WS	(1+6+15+15)	16~64		8×103FSNS	(1+7+7F+14+14-30+30)	60~190
6×37(b)	6×37	(1+6+12+18)	13~66		8×109SWSNS	(1+8+8+8/8+16-30+30)	60~190
6×61(a)	6×61FWS	(1+5+5F+10+10/10+20)	60~110	8×61(b)	8×61	(1+6+12+18+24)	60~134
	6×64FS	(1+9+9+9F+18+18)	60~100	18×7	17×7	(1+6)	12~44
6×61(ab)	6×65FNS	(1+6+6F+12-20+20)	60~116		18×7	(1+6)	12~55
	6×80WSNS	(1+7+7/7+14-22+22)	60~130	18×19	18×19S	(1+9+9)	18~50
	6×84WSNS	(1+7+7/7+14-24+24)	60~142		18×19W	(1+6+6/6)	14~50
6×91(ab)	6×111SWSNS	(1+9+9+9/9+18-28+28)	60~128		18×19	(1+6+12)	14~50
	6×103FSNS	(1+7+7F+14+14-30+30)	60~156	34×7	34×7	(1+6)	16~60
	6×109SWSNS	(1+8+8+8/8+16-30+30)	60~156		36×7	(1+6)	16~60
6×61(b)	6×61	(1+6+12+18+24)	40~110	35W×7	35W×7	(1+6)	16~60
6×12	6×12	(FC+12)	8~32		24W×7	(1+6)	16~50
6×24	6×24	(FC+9+15)	30~46

Shaped Strand Wire Rope
Rope   Type	Typical Construction		Rope Diameter(mm)	Rope Type	Typical Construction		Rope Diameter(mm)
	Wire Rope	Strand			Wire Rope	Strand
4V×39	4V×39S	(FC+9+15+15)	14~46	6V×19	6V×30	(6+12+12)	22~38
	4V×48S	(FC+12+18+18)	20~50		6V×34	(/1×7+3/+12+12)	28~44
6V×7	6V×19	(/1×7+3/+9)	20~36	6V×37	6V×37	(/1×7+3/+12+15)	32~52
6V×19	6V×21	(FC+9+12)	18~36		6V×37S	(/1×7+3/+12+15)	32~52
	6V×24	(FC+12+12)	18~36		6V×43	(/1×7+3/+15+18)	38~58

Compacted Strand Wire Rope
Rope   Type	Typical Construction		Rope Diameter(mm)	Rope Type	Typical Construction		Rope Diameter(mm)
	Wire Rope	Strand			Wire Rope	Strand
6×K7	6×K7	1+6	10~40	8×K36-PWRC(K)	8×K36WS-PWRC(K)	1+7+7/7+14	22~60
6×K19	6×K19S	1+9+9	12~40	15×K7	15×K7	1+6	22~60
	6×K26WS	1+5+5/5+10	14~40	16×K7	16×K7	1+6	22~60
	6×K31WS	1+6+6/6+12	16~40	18×K7	18×K7	1+6	14~48
6×K36	6×K36WS	1+7+7/7+14	24~68	18×K9	18×K9S	1+9+9	24~60
	6×K41WS	1+8+8/8+16	38~68	35W×K7	35W×K7	1+6	14~42
8×K19	8×K17S	1+8+8	16~38		35W×K19S	1+9+9	35~52
	8×K19S	1+9+9	16~40		35W×K26WS	1+5+5/5+10	40~60
	8×K26WS	1+5+5/5+10	20~42	JL·1618K	JL·1618K	1+6	18~60
	8×K31WS	1+6+6/6+12	24~50	JL·1710K	JL·1710K26WS	1+5+5/5+10	20~50
8×K36	8×K36WS	1+7+7/7+14	28~78		JL·1710K31WS	1+6+6/6+12	20~50
	8×K41WS	1+8+8/8+16	30~78		JL·1710K36WS	1+7+7/7+14	30~50
8×K19-PWRC(K)	8×K19S-PWRC(K)	1+9+9	20~48	JL·1712K	JL·1712K7	1+6	20~40
	8×K26WS-PWRC(K)	1+5+5/5+10	20~48		JL·1710K719S	1+9+9	30~60
	8×K31WS-PWRC(K)	1+6+6/6+12	20~56

Steel Cable
Rope   Type	Typical Construction		Rope Diameter(mm)	Rope Type	Typical Construction		Rope Diameter(mm)
	Wire Rope	Strand			Wire Rope	Strand
7×[6×37(a)+IWR]	6×[6×36WS+IWR]+IWRC		192~260	9×[6×37(a)+IWR]	8×[6×36WS+IWR]+IWRC		192~260
	6×[6×41WS+IWR]+IWRC		192~260		8×[6×41WS+IWR]+IWRC		192~260
	6×[6×49SWS+IWR]+IWRC		192~260		8×[6×49SWS+IWR]+IWRC		192~260
7×[6×61(a)+IWR]	6×[6×55SWS+IWR]+IWRC		192~260	9×[6×61(a)+IWR]	8×[6×55SWS+IWR]+IWRC		192~260
	6×[6×61FWS+IWR]+IWRC		192~260		8×[6×61FWS+IWR]+IWRC		192~260
	6×[6×64SFS+IWR]+IWRC		192~260		6×[6×64SFS+IWR]+IWRC		192~260
7×[6×37(b)+IWR]	6×[6×37+IWR]+IWRC		192~260	9×[6×37(b)+IWR]	8×[6×37+IWR]+IWRC		192~260
7×[6×61(b)+IWR]	6×[6×61+IWR]+IWRC		192~260	9×[6×61(b)+IWR]	8×[6×61+IWR]+IWRC		192~260

Advanced Manufacturing Capabilities

JULI steel wire rope sling factory features a comprehensive production system, backed by strong technical expertise and reliable after-sales support. The facility is equipped with a 10,000-ton pressing machine, one of the largest in the Asian market, enabling the production of ultra-heavy-duty slings.

Several advanced pieces of equipment are independently developed and patented, including horizontal rotating grommet sling machines, horizontal-vertical grommet forming machines, and large-scale horizontal steel cable splicing machines, ensuring high precision and consistent quality.