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The U2 Grade Hot-DIP Anchor Chain with Swivel & Shackle for Navigation Buoy is the holding gear for a buoy mooring: a U2-grade welded anchor chain supplied with swivel and shackle, hot-dip galvanized for long service in seawater. It keeps the buoy on station through tide, current and storm, and the swivel takes out the twist that wind and current put into the mooring line.
Basic Info.
| Model NO. | BU-1338 |
| Type | Mooring Anchor Chain Accessory |
| Buoyancy | On request |
| Material | HDPE / UV-stabilized polymer (per model) |
| Protection Rating | Sealed floatation |
| Certification | CE, RoHS, ISO 9001 |
| After-sales Service | Warranty available |
| Warranty | One year warranty |
| Customization | Available — OEM/ODM (size, color, payload, mooring hardware) |
| MOQ | 1 piece |
| Transport Package | Carton / wooden case (per size) |
| Lead Time | To be negotiated (per quantity and customization) |
| Shipping | Sea freight for full units; express for accessories |
Product Highlights
- U2 grade steel: welded link chain for permanent mooring duty.
- Hot-dip galvanized: full-dip coating inside and out for seawater corrosion resistance.
- Swivel & shackle included: delivered as a ready-to-rig set for the buoy mooring.
- Matched to the buoy: chain size and length sized to the buoy displacement and mooring depth.
- Replacement-friendly: standard link dimensions for easy section replacement in the field.
- OEM/ODM: chain diameter, length and hardware built to your mooring design.
Key Specifications
| Type | Mooring Anchor Chain Accessory |
| Chain grade | U2 |
| Finish | Hot-dip galvanized |
| Hardware | Swivel & shackle included |
| Chain diameter | On request (per buoy size) |
| Length | On request (per mooring depth) |
| Breaking load | On request (per diameter) |
Structure & Sealing
Links are flash-welded and proof-tested before galvanizing; the hot-dip coating covers every surface including the weld roots. The swivel rides at the buoy end so the chain never builds twist, and the shackle pins are secured with split pins for tool-free inspection.
Applications
- Navigation buoy moorings in coastal and offshore waters
- Monitoring and observation buoy station-keeping
- Replacement chain for existing buoy installations
Customization & OEM
- Hull diameter, buoyancy class and color per site requirements.
- Top works: navigation light, antenna, sensor mast or solar power kit.
- Mooring hardware sized to water depth and sea state.
- Private-label marking and packaging options for OEM programs.
Packaging & Delivery
Buoys ship crated or wrapped per size; chain and hardware ship separately on pallets. Lead time depends on configuration — contact us for a current schedule. Sea freight supported for full units.
FAQ
What is the MOQ?
MOQ is 1 piece for trial orders; volume pricing is available on request.
What chain diameter do I need?
It depends on buoy displacement, water depth and sea state — send the buoy model and site data and we size the chain.
What buoyancy class should I choose?
It depends on payload and mooring loads — tell us the site and payload and we recommend the class.
How is it moored?
Through a shackle and anchor chain sized to the site; chain sets are available as an accessory.
Is there a warranty?
One year warranty with technical support; spare parts available on request.
How do you ship?
Crated export packing; sea freight for full buoys, express for accessories.