Grade 80 Links
G80 European Type Master Link A343(no flat Din 5688)
A Grade 80 welded oblong master link designed to EN1677-4 (superseded DIN5688-3), suitable for single or multiple leg chain slings. It allows direct attachment of slings to hoists, cranes, and winches, or pairing with a shackle. The link is stamped with size, working load limit, and working load limit marking. Available in chain diameters from 7 mm to 40 mm with corresponding working load limits from 6 to 35 tons. Surface finish is powder plastified red or yellow.
- 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 Master Link A343 Gives You
- Welded oblong design allows easy and secure attachment of chain slings to lifting points or shackles
- Grade 80 alloy steel body provides high tensile strength and durability under heavy-duty lifting
- Individually proof load tested to verify integrity
- 4:1 standard design factor ensures safety margin in dynamic lifting applications
- Powder plastified red or yellow finish resists corrosion and improves visibility in industrial environments
- working load limit marking and WLL stamping on the body enable traceability and compliance with European standards
- Flat pressing available on request to fit with Grade 80 omega links for chain sling systems
Application Scenarios
Where G80 European Type Master Link A343 Is Used
- Used in multi-leg chain sling assemblies for lifting heavy industrial components in construction and infrastructure projects
- Integrated into crane and hoist rigging systems where a secure, non-rotating connection is needed
- Applied in marine and offshore lifting where corrosion resistance and high strength are critical
- Employed in mining and energy sector rigging for equipment handling and maintenance
- Installed in steel fabrication yards for connecting chain slings to load points during material handling
- Used in port operations for securing and lifting heavy cargo containers and steel bundles
Who It Is For
Buyers This Product Is Built For
- Rigging contractors sourcing chain sling components for custom lifting setups
- Industrial maintenance teams specifying master links for crane and hoist systems
- Marine and offshore service providers requiring Grade 80 links compliant with EN1677-4
- Manufacturers of chain slings needing reliable master links for assembly
- Logistics and transport companies building chain-based securing systems for heavy freight
Problems It Solves
Problems This Product Removes
- Eliminates the need to source master links and shackles separately when building chain slings
- Provides a single, certified component that meets EN1677-4 and carries working load limit marking for compliance
- Solves the issue of weak or inconsistent welds by using a factory-tested welded oblong link
- Reduces setup time by allowing direct attachment of chain slings to lifting points
- Prevents misidentification of chain grade by clearly stamping G80 and WLL on the body
- Offers a flat-pressed version on request to match with omega links in chain sling systems
Technical Features
Technical Features
- Welded oblong link in Grade 80 alloy steel, quenched and tempered for strength
- Designed to EN1677-4 (superseded DIN5688-3) for European chain sling applications
- Individually proof load tested
- Standard 4:1 design factor with minimum breaking load four times the safe working load
- Powder plastified red or yellow surface finish for corrosion resistance and visibility
- Stamped with size, working load limit, and working load limit marking for traceability and compliance
- Flat pressing available on request to fit with Grade 80 omega links
- Suitable for use in chain slings under EN818-2 and other European lifting standards
Specifications
G80 European Type Master Link A343 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Grade | G80 |
|---|---|
| Material | Forged Super Alloy Steel - Quenched and Tempered |
| Standard | EN1677-4 (superseded DIN5688-3) |
| Design Factor | 4:1 |
| Proof Load Test | the published multiple of the working load limit |
| Surface Finish | Powder Plastified Red or Yellow |
| Marking | Size + WLL + CE |
| Chain Diameter | 7 mm to 40 mm |
| Working Load Limit Range | 6 to 35 tons |
| Ultimate Breaking Load | 4 times Working Load Limit |
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 forged super alloy steel body, quenched and tempered for high strength and impact resistance
- Powder plastified coating in red or yellow for corrosion protection and visual identification
- Welded joint with controlled heat input to maintain material integrity
- working load limit marking applied to meet European safety and traceability requirements
Manufacturing Process
How This Product Is Made
1Forging of the oblong link blank from Grade 80 alloy steel
2Quench and temper heat treatment to achieve required mechanical properties
3Welding of the oblong link with precision control to avoid distortion
4Surface cleaning and preparation for powder plastification
5Powder coating application in red or yellow finish
6Stamping of size, WLL, and working load limit marking on the body
7Proof load testing
8Final inspection and packing for export
Quality Control
Quality Control On Every Batch
- Proof load test conducted on each production batch at the published multiple of the working load limit
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 4:1 design factor
- Visual inspection for weld quality, coating uniformity, and marking clarity
- Material Test Certificate to EN10204 3.1 supplied with orders
- Third-party inspection accepted at the Qingdao warehouse before shipment
Documentation
Certification And Documentation Supplied
- Material Test Certificate to EN10204 3.1 supplied with orders
- working load limit marking applied to the product body
- Proof load testing documented per production batch
Customisation
Customisation Options
- Custom tonnage stamping on the body
- Private label and OEM marking available
- Surface finish in zinc plating, powder coating, or electrophoretic black on request
- Flat pressing on the link body available on request
- Custom packing configurations for carton and pallet 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 |
|---|---|
| Screw pin shackle | The master link offers a more compact and rigid connection for chain slings, but a shackle allows for easier field adjustment and removal |
| Forged master link | The welded version is lighter and more cost-effective for standard chain sling use, though forged links may offer higher fatigue resistance in repeated dynamic service |
| Omega link | The master link is designed for direct chain attachment, while the omega link is used in chain sling assemblies where a looped connection is needed |
| Standard chain link | The master link has a larger cross-section and higher strength rating, making it suitable for load-bearing applications, unlike standard chain links used for non-critical connections |
Use Guide
How To Use And Inspect G80 European Type Master Link A343
- Verify the stamped working load limit matches the calculated load before use
- Inspect the link for deformation, weld cracks, or coating damage before each lift
- Ensure the link is not subjected to side loading or twisting forces
- Use only with Grade 80 chain and compatible components to maintain safety factor
- Do not use if the working load limit marking or WLL stamping is illegible or worn
- Retire the link if the weld shows signs of cracking or the body is deformed
Related Products
Often Ordered With This Item
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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 European Type Coupling Link
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Answers
G80 European Type Master Link A343 FAQ
What standard does this master link follow?
It conforms to EN1677-4, which supersedes DIN5688-3. The link is stamped with working load limit marking and WLL for traceability and compliance with European lifting equipment standards.
Is the proof load test documented?
Yes. Each production batch is proof load tested. A Material Test Certificate to EN10204 3.1 is supplied with the order.
Can the link be pressed flat?
Yes. Flat pressing is available on request to allow the master link to fit with Grade 80 omega links in chain sling systems.
What is the design factor?
A standard 4:1 design factor applies, meaning the minimum breaking load is four times the stated working load limit. This is consistent with EN818-2 and other European lifting standards.
What finish options are available?
Standard finish is powder plastified red or yellow. Custom finishes include zinc plating, powder coating, and electrophoretic black, available on request.
Can you provide custom marking or branding?
Yes. Custom tonnage stamping, private label, and OEM marking are standard options. The finish and packing can also be configured to your specifications.
How are the links packed for export?
Standard packing is in cartons on pallets. We can configure carton count and pallet pattern to suit your warehouse or retail pack. Free two-month storage in Qingdao is available for shipment consolidation.
Need A Quote On G80 European Type Master Link A343
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