The SHINING G100 Master Link Assembly is a premium, engineered component designed as the central hub for 3 or 4-leg Grade 100 chain slings. It features a hybrid forged-and-welded construction, heat-treated for superior strength and fatigue resistance. Compliant with EN 1677-4, it undergoes rigorous proof load (2.5x WLL) and MPI testing. Offering Grade 100 strength (25% stronger than G80) with a 5:1 safety factor, it ensures balanced, stable, and safe lifting for heavy machinery, steel structures, and port logistics in the most demanding industrial applications.
Overview
SHINING's G100 Master Link Assembly is a premium-grade, engineered lifting component designed as the central and secure connection hub for multi-leg (3 or 4-leg) Grade 100 chain slings. This assembly integrates a forged master link with welded sub-links, engineered to meet the rigorous demands of international standards such as EN 1677-4. It is purpose-built for heavy-duty lifting scenarios requiring balanced load distribution across multiple points, ensuring safety and stability in the most demanding industrial applications.
Key Features & Benefits
G100 Grade Strength: Manufactured from high-strength special alloy steel, the entire assembly meets G100 performance standards, offering a 25% higher minimum breaking load compared to G80 products, providing a significant safety margin for critical lifts.
Optimized Hybrid Construction: Features a forged master (parent) link for ultimate load-bearing strength and welded sub-links for flexible and secure connection to chain legs. The entire assembly undergoes quenching and tempering heat treatment to achieve an optimal balance of hardness and toughness.
Superior Safety & Load Distribution: The dedicated 3 or 4-leg design ensures balanced force distribution when lifting large, heavy, or irregular loads, significantly reducing the risk of tipping or slippage. It undergoes a 2.5 x Working Load Limit (WLL) proof test.
Exceptional Fatigue Resistance: Tested to withstand over 20,000 cycles at 1.5 x WLL, this assembly is engineered for high-frequency, high-stress lifting operations, offering extended service life and reduced maintenance needs.
High Safety Factor: With a minimum break load that is 5 times the Working Load Limit, the assembly provides exceptional safety redundancy for dynamic and unpredictable load conditions.
Rigorous Quality Assurance: Every component is 100% inspected via Magnetic Particle Inspection (MPI) to detect surface and sub-surface flaws, complemented by manual inspections and hardness testing throughout the manufacturing process.
Durable & Protective Finish: The standard blue polyester powder coating (RAL 5015) provides excellent corrosion and abrasion resistance, ensuring durability in harsh environments like construction sites, ports, and mills.
Typical Applications
Multi-point lifting of heavy machinery, large steel structures, and industrial equipment.
Lifting and turning of steel coils, large pipes, and precast concrete elements.
Heavy-load handling in port logistics for shipping containers and large cargo frames.
Infrastructure projects such as bridge building and wind turbine installation.
Maintenance and installation operations in mining, shipbuilding, and heavy manufacturing.
Specifications Table

Item Code | For Chain Size | Weight (kg) | Working Load Limit (T) | A (mm) | B (mm) | D (mm) | a (mm) | b (mm) | d (mm) |
10-1012-6 | 6 mm | 1.3 | 3.0 | 135 | 75 | 19 | 54 | 25 | 13 |
10-1012-8 | 8 mm | 2.33 | 5.3 | 160 | 90 | 23 | 70 | 34 | 16.5 |
10-1012-10 | 10 mm | 3.7 | 8.0 | 180 | 100 | 27 | 85 | 40 | 19 |
10-1012-13 | 13 mm | 6.5 | 14.0 | 200 | 110 | 33 | 115 | 50 | 23 |
10-1012-16 | 16 mm | 10.1 | 21.2 | 260 | 140 | 36 | 140 | 65 | 27 |
10-1012-20 | 19/20 mm | 22.8 | 33.6 | 350 | 190 | 50 | 180 | 90 | 33 |
10-1012-22 | 22 mm | 26.0 | 39.9 | 350 | 190 | 50 | 180 | 100 | 36 |
Service & Support
Industrial Lifting Solutions & OEM Support | SHINING Global
SHINING provides complete lifting system solutions, from certified components like the G100 Master Link Assembly to custom engineering and lifecycle support. With over 20 years of OEM expertise, we offer comprehensive technical support and a global supply network to ensure timely delivery and operational efficiency for your heavy-lifting projects.
For complete technical specifications, custom quotes, or technical support for your industrial applications, contact our sales team at sales@shiningco.com. Provide your project requirements for customized solution development.









