Links and Rings
G-402 Regular Chain Swivel Eye and Eye
A drop-forged carbon steel swivel link with eye ends, designed to connect anchor chain sections and prevent twisting or kinking during deployment. It maintains alignment in dynamic loads and reduces stress on the chain by allowing free rotation at the joint. Available from 1/4 inch to 1 1/2 inch in size, heat-treated and hot-dip galvanized for corrosion resistance.
- Size
- From 1/4" to 1 1/2" Processing: Drop Forged,Welded, Heat Treated
- Material
- Carbon Steel
- Finish
- Hot Dip Galvanized Safty Factor: 5:1
- Packing
- Cartons then pack on pallets
- Catalogue Family
- Links and Rings
- 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 G-402 Regular Chain Swivel Eye and Eye Gives You
- Free-rotating swivel joint eliminates chain twisting and kinking during anchor deployment and retrieval
- Drop-forged carbon steel body with 5:1 safety factor ensures strength under repeated dynamic loads
- Hot-dip galvanized finish resists rust and corrosion in marine and outdoor environments
- Eye-to-eye configuration allows direct connection between chain links without additional fittings
- Heat-treated for improved toughness and resistance to fatigue in high-stress applications
- Prevents stress concentration at connection points by distributing load evenly through rotation
- Reduces wear on chain links and anchor fittings by eliminating torsional strain
Application Scenarios
Where G-402 Regular Chain Swivel Eye and Eye Is Used
- Marine anchor systems where chain twist causes drag and reduces anchor holding power
- Offshore mooring setups where chain rotation is required to align with anchor points
- Boat and vessel maintenance where anchor chain is frequently deployed and retrieved
- Dockside and harbor operations with repeated chain handling under tension
- Heavy-duty lifting and rigging where chain alignment must be maintained across multiple joints
- Industrial chain systems requiring flexible, non-binding connections between rigid segments
Who It Is For
Buyers This Product Is Built For
- Marine equipment suppliers building anchor and mooring kits for boats and vessels
- Yacht and shipyard maintenance teams specifying chain components for anchor systems
- Offshore rigging contractors managing mooring and anchoring lines in dynamic conditions
- Rigging distributors carrying chain hardware with swivel functionality
- Marine hardware retailers sourcing reliable swivel links for retail and repair markets
Problems It Solves
Problems This Product Removes
- Chain twisting during anchor deployment leading to reduced holding power and increased drag
- Kinking and permanent deformation in chain links due to torsional stress at joints
- Premature wear on anchor fittings and chain links caused by fixed connection points
- Difficulty in handling and retrieving anchor chain when joints are rigid and non-rotating
- Need to add extra fittings like shackles or links to allow rotation, increasing cost and complexity
- Lack of corrosion protection in exposed chain joints leading to rust and failure over time
Technical Features
Technical Features
- Drop-forged carbon steel body with heat treatment for impact and fatigue resistance
- Free-rotating swivel joint with precision-machined bore and pin for smooth motion
- Eye ends on both ends for direct chain connection without additional hardware
- 5:1 safety factor applied to all sizes, with minimum breaking load five times the working load
- Hot-dip galvanized finish for long-term protection in saltwater and outdoor exposure
- Working load limit and size stamped on the body for traceability and field identification
- Standard dimensions and tolerances verified against DIN 766 and EN 818-2
Specifications
G-402 Regular Chain Swivel Eye and Eye Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Capacity Range | 1/4 inch to 1 1/2 inch diameter |
|---|---|
| Material | Carbon steel drop forged and heat treated |
| Safety Factor | 5:1 minimum breaking load to safe working load |
| Surface Finish | Hot-dip galvanized |
| Processing | Drop forged welded heat treated |
| Dimensions | A: 1.25 to 7.09 in, B: 0.69 to 3.88 in, C: 0.75 to 4.09 in, D: 1.06 to 3.75 in, J: 0.69 to 2.25 in, M: 0.31 to 2.25 in, R: 2.94 to 16.69 in, S: 1.69 to 9.91 in |
| Weight per Unit | 0.21 lbs to 45.79 lbs |
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
- Carbon steel body drop forged for strength and grain structure integrity
- Heat-treated after forging to improve hardness and fatigue resistance
- Hot-dip galvanized coating for corrosion protection in marine and outdoor use
- Precision-machined swivel pin and bore for smooth rotation and long service life
Manufacturing Process
How This Product Is Made
1Drop forging of the chain link blanks and swivel components
2Heat treatment to achieve required hardness and toughness
3Machining of eye ends and swivel bore to precise dimensions
4Assembly of the swivel joint with pin and retention mechanism
5Hot-dip galvanizing of the complete assembly
6Proof load testing and marking of working load limit
7Final inspection and packing in cartons for export
Quality Control
Quality Control On Every Batch
- Proof load test on production batches before release
- Dimensional tolerance check against published size table
- Breaking strength validation to confirm 5:1 safety factor
- Swivel rotation check for free movement and no binding
- Material Test Certificate to EN 10204 3.1 issued with order on request
- Third-party inspection accepted at warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on the body for traceability
- Private label and OEM marking available
- Custom surface finish including zinc plating powder coating or electrophoretic black
- Sizes and configurations built to a supplied drawing
- Carton and pallet packing configured for your warehouse or retail pack
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 |
|---|---|
| Rigid chain link | The swivel prevents chain twist and reduces wear but adds a moving part that requires inspection for free rotation |
| Screw pin shackle | The swivel offers continuous rotation without pin loosening under vibration, unlike a screw pin that needs regular tightening |
| Standard eye-to-eye chain | The swivel allows rotation while the standard link does not, reducing torsional stress in dynamic applications |
| Welded chain link | The drop-forged swivel has better fatigue resistance and impact strength than a welded joint, which can fail at the weld under cyclic load |
Use Guide
How To Use And Inspect G-402 Regular Chain Swivel Eye and Eye
- Match the stamped working load limit to the actual line tension, not the winch or anchor rating
- Inspect the swivel for free rotation and absence of grit or binding before each use
- Ensure the chain is properly aligned through the swivel to avoid side loading
- Check for signs of wear, deformation, or galvanizing loss on the swivel joint regularly
- Retire the swivel if the pin seizes, the bore shows wear, or the marking is illegible
- Do not exceed the rated working load, especially in dynamic or shock-loading scenarios
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Answers
G-402 Regular Chain Swivel Eye and Eye FAQ
What is the safety factor on this swivel?
A standard 5:1 safety factor is applied, so the minimum breaking load is five times the stated safe working load.
Can this swivel be used in saltwater environments?
Yes. The hot-dip galvanized finish provides corrosion resistance suitable for marine and outdoor use.
Is the swivel free-rotating?
Yes. The swivel joint is designed to rotate freely under load to prevent chain twisting and kinking.
What standards does this product follow?
The product complies with DIN 766 and EN 818-2 for chain link strength and safety requirements.
Can you provide a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with the order on request.
Can I get custom marking or branding?
Yes. Custom tonnage stamping, private label, and OEM marking are available upon request.
How are the swivels packed for export?
Packed in cartons then palletized. We can configure the 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 G-402 Regular Chain Swivel Eye and Eye
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.