lifting chain sling 3 leg
Lifting Chain Sling 3 Leg
Product Overview
The lifting chain sling 3 leg is a robust and versatile lifting solution engineered for heavy-duty industrial applications. Composed of high-grade alloy steel chains, this three-leg configuration provides exceptional stability and load distribution, making it ideal for lifting irregular or unbalanced loads. Each leg is precisely matched to ensure uniform tension, minimizing the risk of sling failure and enhancing overall safety during rigging operations.
Designed in compliance with international standards such as EN 818-4 and ASME B30.9, our lifting chain sling 3 leg offers superior strength-to-weight ratios compared to wire rope or synthetic slings. Available in Grade 80 and Grade 100 chains, it supports working load limits (WLL) ranging from 1.5 tons to over 20 tons per leg, depending on the chain diameter and configuration. The sling features a common master link or ring at the top for easy connection to cranes, hoists, or overhead lifting equipment, and individual hooks or shackles at each leg's end for secure load attachment.
Whether used in vertical, choker, or basket hitch configurations, the lifting chain sling 3 leg excels in demanding environments where durability, flexibility, and resistance to abrasion, chemicals, and extreme temperatures are paramount. Its modular design allows for custom leg lengths and adjustments, ensuring precise fit for diverse lifting tasks. This product is a staple in professional rigging inventories, trusted by global industries for its reliability and performance under high-stress conditions.
Key Features
- High-Tensile Alloy Steel Chains: Grade 80 or 100 chains with minimum breaking force up to 4 times the WLL, ensuring maximum safety margins.
- Three-Leg Configuration: Optimized for balanced lifting of loads up to 7 tons (Grade 80) or higher, with symmetrical load sharing.
- Forged Components: Master oblong link, hammertone powder-coated hooks, and safety latches to prevent accidental detachment.
- Customizable Lengths: Leg lengths from 1m to 6m or more, with shortening clutches for on-site adjustments.
- Corrosion Resistance: Zinc-plated or black oxide finish for protection against harsh weather and chemicals.
- Identification Tags: Permanently stamped with WLL, grade, size, and serial number for traceability and inspection compliance.
- Flexible Hitching: Suitable for single, double, or triple choker hitches, with reduced capacity factors applied per standards.
- Lightweight Yet Durable: Compact design reduces sling weight without compromising strength, easing handling and storage.
Technical Specifications
| Chain Diameter (mm) | Grade | Single Leg WLL (tons) | 3-Leg Vertical WLL (tons)* | 3-Leg Basket WLL (tons)** | Standard Leg Length (m) | Weight per Meter (kg/m per leg) |
|---|---|---|---|---|---|---|
| 6 | 80 | 1.12 | 3.36 | 6.72 | 1.5 - 6 | 0.79 |
| 7 | 80 | 1.5 | 4.5 | 9.0 | 1.5 - 6 | 1.12 |
| 8 | 80 | 2.0 | 6.0 | 12.0 | 1.5 - 6 | 1.45 |
| 10 | 80 | 3.15 | 9.45 | 18.9 | 2 - 8 | 2.25 |
| 13 | 80 | 5.3 | 15.9 | 31.8 | 2 - 8 | 3.8 |
| 16 | 100 | 8.8 | 26.4 | 52.8 | 3 - 10 | 5.7 |
| 20 | 100 | 13.8 | 41.4 | 82.8 | 3 - 10 | 8.9 |
*Vertical hitch at 60° angle between legs. **Basket hitch with no angle factor. Choker hitch capacities are 80% of vertical for Grade 80. All values based on EN 818-4 standards. Custom sizes available upon request.
Application Scenarios
The lifting chain sling 3 leg is indispensable across a wide array of industrial sectors where precise and secure heavy lifting is required. In construction and infrastructure projects, it is routinely deployed for hoisting steel beams, precast concrete panels, and machinery components to elevated positions, ensuring stability on job sites with uneven terrain.
Within manufacturing and fabrication facilities, this sling configuration shines in handling large dies, molds, and assemblies during transfer between workstations or loading onto transport. Its ability to cradle awkward shapes prevents damage while maintaining load integrity.
In oil & gas and petrochemical plants, the lifting chain sling 3 leg withstands corrosive environments, lifting valves, pumps, and pipe sections during maintenance shutdowns. Shipyards and offshore platforms rely on it for positioning massive hull sections and equipment modules, where high WLL and fatigue resistance are critical.
Mining and quarrying operations utilize it for extracting and moving ore bins, crushers, and conveyor components, thriving in dusty, abrasive conditions. Automotive and aerospace industries employ the sling for engine blocks, turbine parts, and airframes, demanding zero-compromise safety and precision.
Additionally, in warehouse and logistics, it facilitates the rigging of oversized pallets and machinery for overhead cranes, optimizing space and efficiency. Versatile enough for temporary rigging or permanent installations, the lifting chain sling 3 leg adapts to vertical lifts, basket cradles, or choker setups, covering 360° of application versatility.
Advantages
Opting for a lifting chain sling 3 leg delivers tangible benefits over alternative rigging methods. Its unparalleled durability stems from alloy steel construction, which resists cuts, gouges, and UV degradation far better than nylon or polyester webs, extending service life and reducing replacement costs.
The three-leg design inherently balances loads, reducing stress concentrations that could lead to twisting or swinging—common issues with single or two-leg slings. This results in smoother lifts, shorter cycle times, and lower accident risks, directly boosting operational productivity.
Unlike wire rope slings, chain slings offer unlimited flexibility in storage and transport, folding compactly without kinking. Maintenance is straightforward: visual inspections per OSHA/ASME guidelines detect wear early, with no need for specialized tools.
With a higher temperature tolerance (-40°C to 200°C for Grade 80), it outperforms synthetics in hot work environments like foundries. Economically, the initial investment yields long-term savings through higher WLL per weight unit and minimal downtime.
Safety is paramount: built-in factors of safety (4:1 or 5:1) and color-coded tags ensure compliance, while the absence of stretch prevents load drops. In summary, the lifting chain sling 3 leg combines strength, adaptability, and reliability for superior performance.
Why Choose Us
As a leading manufacturer and supplier of rigging equipment, we specialize in premium lifting chain sling 3 leg solutions backed by decades of expertise in international trade. Our products undergo rigorous testing in accredited labs, holding certifications like CE, GS, and ISO 9001, guaranteeing adherence to global standards.
We source chains from top-tier mills, employing advanced welding and heat treatment processes for consistent quality. Every sling is serialized for full traceability, with detailed inspection reports provided. Our engineering team offers bespoke configurations, from adjustable legs to specialized hooks, tailored to your exact specifications.
With a vast inventory and efficient global logistics, we ensure prompt delivery without compromising quality. Our commitment to customer support includes technical consultations, load calculation tools, and training resources to optimize your lifting operations safely.
FAQ
What is the maximum angle for a lifting chain sling 3 leg?
For optimal safety, keep the angle between legs at 60° or less in vertical hitches. Angles exceeding 60° reduce WLL—consult our table for derating factors.
How do I inspect a lifting chain sling 3 leg?
Perform daily visual checks for nicks, cracks, or stretch. Annual professional inspections measure wear per manufacturer guidelines. Discard if elongation exceeds 5% or links are distorted.
Can the leg lengths be customized?
Yes, we offer fully customizable leg lengths from 1m to 12m, with options for equal or unequal legs to match specific load geometries.
What is the difference between Grade 80 and Grade 100?
Grade 100 provides 25% higher WLL for the same diameter, ideal for extreme loads, while Grade 80 suits general heavy lifting with proven reliability.
Are these slings suitable for choker hitches?
Absolutely, with an 80% capacity reduction on the choker leg. Ensure stock diameter is at least 1/8 larger than the load contact point to avoid damage.
What storage practices are recommended?
Store in a clean, dry area away from sunlight and chemicals. Hang or coil loosely to prevent kinks; avoid ground contact to deter rust.
Do you provide load charts for the lifting chain sling 3 leg?
Yes, detailed multi-language charts are included with each sling, covering all hitch types, angles, and configurations for quick reference.