G120 Chain Butterfly Connecting Link D Shape Hammerlock
A G120 Connecting Link, also known as a coupling link, joining link, or hammerlock connecting link, is a mechanical connector specifically engineered for Grade 120 alloy lifting chain systems. It enables the secure connection of chain to master links, hooks, shortening clutches, or other lifting accessories without requiring welding.
Unlike standard hardware connectors, G120 connecting links are manufactured from high-strength quenched and tempered alloy steel and are designed to match the performance requirements of Grade 120 lifting chains.
Key Features
Superior Strength
Grade 120 components provide approximately 20% higher working load capacity compared with Grade 100 components of the same chain size. This increased capacity allows users to lift heavier loads without increasing chain diameter.
High-Quality Alloy Steel
Manufactured from premium forged alloy steel, G120 connecting links undergo precise heat treatment to achieve:
- Excellent tensile strength
- High toughness
- Outstanding fatigue resistance
- Superior wear resistance
These properties ensure reliable performance under demanding lifting conditions.
Durable Surface Finish
Most G120 connecting links feature:
- Powder-coated finish
- Bright painted surface
- Corrosion-resistant treatment
- Identification markings for traceability
The protective coating improves corrosion resistance while making inspection easier.
Easy Installation
Most connecting links use a pin-and-locking mechanism that enables fast assembly and replacement without specialized welding equipment.
This simplifies sling manufacturing, maintenance, and repairs.
Main Applications
G120 connecting links are widely used in:
- Multi-leg chain slings
- Single-leg lifting slings
- Crane lifting systems
- Heavy construction lifting
- Mining operations
- Steel fabrication plants
- Offshore lifting equipment
- Wind energy installation
- Shipbuilding
- Industrial maintenance
Wherever Grade 120 lifting chains are used, connecting links provide secure and dependable connections.
Model Number: SLR12001
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Cautions:
Before each use, check for:
- Cracks
- Deformation
- Excessive wear
- Bent components
- Pin damage
- Corrosion
- Missing locking parts
- Illegible identification markings
