Grade 80 Links
G80 European Type Coupling Link
A Grade 80 alloy steel coupling link designed to connect chain segments, master links, hooks, and other rigging components. It features a forged body with a powder plastified finish, engineered for heavy-duty overhead lifting, lashing, and towing. Available in sizes from 6mm to 32mm with working load limits from 1T to 32.2T, it is used to create secure, continuous chain systems under dynamic and static loads.
- Size
- From 6mm to 32mm B. L= 4 times*WLL
- Packing
- Cartons then pack on pallets
- Catalogue Family
- Grade 80 Links
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What G80 European Type Coupling Link Gives You
- Grade 80 alloy steel body provides high tensile strength and impact resistance for heavy-duty applications
- Powder plastified surface finish resists corrosion and abrasion in harsh industrial and marine environments
- European type design ensures compatibility with standard chain components and master links
- 4:1 design factor ensures a minimum breaking load four times the stated working load limit
- Forged construction eliminates weak points and improves fatigue resistance under repeated loading
- Smooth internal bore reduces chain wear and prevents galling during connection and disconnection
- Compact form factor allows tight chain routing in confined rigging setups
Application Scenarios
Where G80 European Type Coupling Link Is Used
- Connecting chain segments in overhead lifting systems where continuous chain length is required
- Joining master links to chain ends in wire rope or welded chain hoist systems
- Securing load-bearing chains in towing and lashing operations on transport trailers and vessels
- Assembling rigging systems in construction and infrastructure projects with high load demands
- Integrating chain components in marine anchor and mooring systems exposed to saltwater
- Building custom chain assemblies for industrial machinery and crane systems
Who It Is For
Buyers This Product Is Built For
- Rigging contractors sourcing complete chain systems with consistent component compatibility
- Industrial maintenance teams replacing worn or damaged chain connectors in lifting gear
- Marine and offshore operators requiring corrosion-resistant chain connectors for mooring
- Transport and logistics firms building secure lashing systems for heavy cargo
- Manufacturers of lifting and rigging equipment integrating standard links into their assemblies
- Procurement engineers managing a single purchase order for multiple rigging components
Problems It Solves
Problems This Product Removes
- Replacing multiple loose links or makeshift connectors that compromise chain integrity
- Avoiding chain misalignment or binding due to mismatched or non-standard link designs
- Reducing wear on chain links caused by rough or sharp internal edges in poor-quality connectors
- Eliminating the need to source coupling links from separate suppliers when ordering chain
- Preventing connection failure under dynamic loads due to low-grade or undersized links
- Ensuring traceability and compliance with safety standards through consistent marking and testing
Technical Features
Technical Features
- Drop-forged Grade 80 alloy steel body for high strength and fatigue resistance
- Powder plastified surface finish for corrosion and abrasion protection
- European type design with standardized dimensions for chain compatibility
- 4:1 design factor with minimum breaking load four times the working load limit
- Internal bore sized to match standard chain pin diameters from 6mm to 32mm
- Working load limit and material grade stamped on the body for field traceability
- Designed for use in overhead lifting, lashing, and towing with continuous chain systems
Specifications
G80 European Type Coupling Link Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Material | Grade 80 alloy steel |
|---|---|
| Surface Finish | Powder plastified |
| Size Range | 6mm to 32mm chain pin diameter |
| Working Load Limit Range | 1T to 32.2T |
| Design Factor | 4:1 minimum breaking load to safe working load |
| Dimensions | B1, D1, H1, H as per size table |
| Weight Range | 0.3kg to 15kg per unit |
| Application | Overhead lifting, lashing, towing |
Full size table on request. The catalogue publishes a full dimension and capacity table for this item. Ask on WhatsApp or by email and we will send it as a PDF.
Materials
Materials And Finishes
- Grade 80 alloy steel forged into the final link shape for high tensile strength
- Powder plastified coating applied after forging to resist rust and mechanical wear
- Internal bore machined to precise tolerance to match chain pin dimensions
- No welded joints or cast components to avoid stress risers and weak points
Manufacturing Process
How This Product Is Made
1Raw alloy steel billets heated and drop forged into the link shape
2Quench and temper heat treatment to achieve Grade 80 mechanical properties
3Machining of internal bore and external surfaces to dimensional tolerance
4Surface treatment via powder plastification for corrosion resistance
5Stamping of working load limit and material grade on the body
6Proof load testing and dimensional inspection before packing
Quality Control
Quality Control On Every Batch
- Proof load testing on production batches to verify 4:1 design factor
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm minimum breaking load
- Visual inspection for surface defects, cracks, or coating flaws
- Material Test Certificate to EN 10204 3.1 issued with the order on request
- Third-party inspection accepted at the Qingdao warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body to match client’s WLL requirements
- Private label and OEM marking available for brand integration
- Custom surface finish including zinc plating, powder coating, or electrophoretic black
- Custom sizes and dimensions built to a supplied drawing
- Packing configuration adjusted for carton count and pallet pattern to suit warehouse or retail needs
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| Standard carbon steel coupling link | Grade 80 alloy steel offers higher tensile strength and fatigue resistance, suitable for repeated heavy-duty use |
| Cast steel coupling link | Forged construction provides better impact resistance and avoids internal porosity found in cast parts |
| Non-standard or custom-made link | European type design ensures compatibility with standard chain components and reduces procurement complexity |
| Welded link | No welds mean no heat-affected zones or potential failure points under cyclic loading |
Use Guide
How To Use And Inspect G80 European Type Coupling Link
- Verify the stamped working load limit matches the calculated load, not the equipment rating
- Ensure the chain pin diameter matches the internal bore of the coupling link
- Inspect the link for deformation, coating damage, or wear before each use
- Do not use if the internal bore shows signs of galling or misalignment
- Avoid side loading or bending forces that exceed the link’s design limits
- Retire the link if the marking is illegible or the body shows permanent deformation
Related Products
Often Ordered With This Item
G80 Weldless Round Ring | Forged Alloy Steel Ring - S-643
Pear Shaped Link Forged Weldess Pear links A-341, G-341
Weld-on pivoting link / Grade 80 Weld on Lifting Point
Swivel Hoist Ring/G80 Universal Swivel Eyebolt with Ring
GRADE 80 EYEBOLT/Alloy Steel Eye Bolt
G80 Welded Master Link Assembly A347
G80 Web Sling Connector
G80 US Type Connect link
Browse The Category
Industries Using This Product
Sourcing Support For This Product
Answers
G80 European Type Coupling Link FAQ
What is the design factor for these coupling links?
A standard 4:1 design factor applies, so the minimum breaking load is four times the stated working load limit.
Can you supply Material Test Certificates?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with each order on request.
Are these links compatible with standard chain?
Yes. The European type design ensures compatibility with standard chain components and master links.
What surface finishes are available?
Standard finish is powder plastified. Custom finishes include zinc plating, powder coating, and electrophoretic black.
Can you customize the tonnage marking and branding?
Yes. Custom tonnage stamping, private label marking, and OEM packaging are standard options.
How are the links packed for export?
Cartons on pallets as standard. We can configure carton count and pallet pattern to match your warehouse or retail pack.
What sizes are available?
Sizes range from 6mm to 32mm chain pin diameter, with working load limits from 1T to 32.2T. Full dimensions are listed in the size table.
Need A Quote On G80 European Type Coupling Link
Send the sizes, the finish and the quantity on WhatsApp or by email. You get a priced reply within 24 hours and a straight answer on stock.
We reply within 24 hours on WhatsApp or by email. Send a drawing, a photo or a bill of materials and we will quote it as it stands.