High Tensile Endless Round Sling

JULI High-Tensile Endless Round Slings are engineered for mega-structural lifts where traditional steel wire ropes or standard synthetic slings reach their operational and safety limits. Utilizing high-performance, high-modulus core yarns enclosed in ultra-durable protective sleeves, these slings deliver exceptional breaking loads (up to 1000T+) with a fraction of the weight of steel.

• Ultra-Heavy Capacity: Factory-certified configurations available from 50T to over 1000T.

• Extreme Weight Reduction: Up to 80% lighter than wire rope slings of equivalent capacity, drastically reducing rigging time and crane hook load.

• Low Elongation: Advanced core fibers provide minimal stretch under peak load, ensuring precise positioning of high-value components.

• Certified for Critical Lifts: Validated in our 5000T test bed and compliant with DNV-ST-N001, ASME B30.9, and EN 1492-2.

The High Tensile Endless Round Sling is engineered for superior lifting performance where safety, strength, and reliability are critical. Manufactured from ultra-high molecular weight polyethylene (UHMWPE) or high-tenacity polyester fibers, it delivers outstanding load-bearing capacity with reduced weight and minimal elongation. This durable and flexible sling is ideal for heavy-duty lifting applications across construction, logistics, shipping, and industrial environments.

Features

• High Strength-to-Weight Ratio: Provides up to four times the lifting capacity of standard polyester slings at only one quarter of the weight.

• Excellent Wear Resistance: Designed to withstand abrasion, cutting, and harsh working conditions without compromising safety.

• Temperature Resistance: Operates effectively from -125 °C to +80 °C, suitable for various industrial and outdoor environments.

• Chemical and UV Protection: Resistant to most chemicals, moisture, and sunlight, maintaining stable performance over time.

• Flexible and Non-Damaging: The soft yet strong structure protects delicate or painted surfaces from damage during lifting.

• Customizable Options: Available in multiple lengths, colors, and load capacities, with optional protective sleeves for enhanced durability.

Learn more about other durable and safe lifting round slings designed for versatile industrial use.

Specifications

• Material: UHMWPE, Polyester, or Nylon

• Structure: Endless loop design with protective outer sleeve

• Safety Factor: 7:1 or as customized

• Working Load Limit (WLL): As per customer requirements

• Elongation at WLL: < 1%

• Temperature Range: -125 °C ~ +80 °C

• Color Code: Optional according to EN1492-2 standard

• Standard Compliance: EN1492-2, ISO9001, CE certified

Customization Options

JULI supports customized high tensile endless round sling solutions including:

• Working Load Limit (WLL) customization
• Custom sling length and color coding
• Reinforced wear protection sleeves
• Special offshore lifting configurations
• Ultra-heavy lifting solutions up to 2000T
• OEM branding and packaging
• Project-specific lifting engineering support

Rigging Selection & Performance Matrix

Performance Attribute	High-Tensile Round Sling	Heavy Wire Rope Sling	Multi-Part Chain Sling
Material Composition	High-Performance Synthetic Fiber (HMPE/Polyester)	High-Carbon Steel Wire Strands	Heat-Treated Alloy Steel Links
Self-Weight (At 200T Capacity)	Lightest Profile (Approx. 40 kg) — Optimized for low crane hook tare weight.	Balanced Profile (Approx. 250+ kg) — Standard for structural stability.	Massive Profile (Approx. 500+ kg) — High structural density.
Handling & Deployment	Manual handling (1-2 rigging personnel); flexible and pliable.	Rigging requires auxiliary mechanical assistance (forklift/small crane).	Rigging requires crane-assisted positioning and layout.
Load Contact Interface	Soft-Surface Contact: Non-marring; conforms to delicate or painted finishes.	Rigid-Surface Contact: High radial pressure; ideal for raw steel and rough castings.	Point-Contact Interface: Metal-on-metal engagement; ideal for rugged industrial components.
Flexibility & Bending Radius	High Flexibility: Kink-free; tight bending radius over small hooks or pins.	Controlled Elasticity: High resistance to crushing; requires standard minimum D/d bending ratios.	Articulated Flexibility: Multi-directional link movement; highly resistant to sharp cross-sectional bends.
Primary Industrial Environment	Wind turbines, aerospace, aerospace modules, and polished machinery.	Heavy infrastructure, shipyards, offshore oil & gas, and general construction.	Foundries, steel mills, high-temperature forging, and heavy salvaging operations.

Critical Applications

• Wind Energy Installation: Lifting and positioning of mega-watt wind turbine nacelles, hubs, and fragile fiberglass blades.

• Shipyard & Offshore: Tandem lifting of hull modules, offshore jacket structures, and subsea oil gas equipment.

• Power Generation Infrastructure: Safely transporting heavy-duty gas turbines, nuclear reactor components, and 500kV transformers.

Why Choose JULI

With nearly 40 years of lifting and rigging manufacturing experience, JULI provides engineered lifting solutions trusted by industrial customers worldwide.

JULI Core Strengths

• CNAS-approved testing laboratory
• Advanced Swiss, German, and Japanese production equipment
• Strict quality inspection and load testing process
• EN, CE, and GS certified manufacturing
• OEM & customized lifting solutions
• Export experience across offshore, energy, logistics, and heavy industry sectors

Quality and Certification

Each sling is rigorously tested in JULI’s CNAS-approved laboratory to guarantee compliance with international quality and safety standards. As a leading lifting sling manufacturer and supplier with over 38 years of experience, JULI Slings is committed to providing reliable, high-quality lifting equipment for global industrial clients.

FAQ

Q: How does JULI ensure the safety of custom 500T+ lifts?

A: Every high-tensile sling ordered for critical or custom tonnage is backed by a full Technical Data Package (TDP), including individual proof-load certificates from our 5000T test bed, manufacturing traceability, and third-party witness options (such as DNV, ABS, or SGS).

Q: What is the recommended practice for sharp edges when using high-tensile synthetic slings?

A: Synthetic fibers are susceptible to cutting under high pressure against sharp corners. JULI requires the use of specialized heavy-duty PU (Polyurethane) anti-cut sleeves or movable protective pads whenever the sling contacts an edge with a radius smaller than the sling diameter.