Chain Support Buoys

General surface chain support buoys are extensively used in single-point mooring (SPM) systems. The chain support buoys include cylindrical buoys, chain-through buoys, and pick-up buoys.

General surface chain support buoys are constructed by resilient closed cell polyethylene /EVA foam around the inner central steelwork, covered by polyurethane (PU) outer kin. The resilient closed cell polyethylene/EVA foam core guarantees self-fendering and unsinkable even in case of damage. And self-colored polyurethane elastomer skin is resistant to abrasion and ultra violet rays degradation. For extreme service environment, the polyurethane elastomer skin can be reinforced by nylon to protective coating has higher tear strength, making the buoy long lasting and virtually maintenance free.

Step 1: Make Steel Structures

Step 2: Make Foam Core

Step 3: Polyurethane Coating

Step 4: Install End Fitting

General Surface Chain Support Buoys and Floats Features

Our Chain Support Buoys

PU Protective Outer Skin

Polyurethane elastomer skin with 3~10mm thickness
Self-fendering

High impact absorption capacity
Inner Polyethylene Foam

Unskinable closed cell rigid foam core, never absorp water even PU outer skin punched

Upper End Fitting

Various end fitting options available, swivel ends, pad-eye, crucifix
Internal Steel Core

For better support and balance
Reinforcement Layer

Reinforced nylon filament ensures polyurethane elastomer protective coating has higher tear strength

General Surface Chain Support Buoys Pictures

Cylindrical Utility Buoys Specification

Cylindrical foam-filled chain support buoys ranging from 1 Ton to 4 Tons (or more) – Fitted on each end with mooring pad eye or swivel or mixed depending on use.

Type	Length (mm)	Overall Length (mm)	Diameter (mm)	Weight (kg)	Net Buoyancy (kg)	Net Buoyancy (lbs)
CUB-1000	1500	2100	1080	375	1000	2222
CUB-1250	1550	2100	1160	380	1250	2778
CUB-1500	2000	2500	1130	445	1500	3333
CUB-1700	2000	2500	1180	455	1700	3778
CUB-1750	2000	2500	1190	460	1750	3889
CUB-1850	2000	2500	1230	470	1850	4111
CUB-2000	2000	2500	1290	485	2000	4445
CUB-2250	2000	2500	1340	500	2250	5000
CUB-2500	2000	2500	1400	515	2500	5556
CUB-2800	2000	2500	1510	595	2800	6222
CUB-3000	2000	2500	1520	550	3000	6667
CUB-3200	2000	2500	1560	560	3200	7111
CUB-3500	2000	2500	1630	580	3500	7778
CUB-3900	2000	2500	1705	605	3900	8667

Buoy's End Fittings

FOR SALE! - CUB-2700 in stock

Net Buoyancy: 2700 kg
Diameter: 1550mm
Body Length: 1750mm
Foam: Closed Foam Core
Skin: Polyurethane Elastomer, Orange Color
End Fittings: 1-1/2” Swivel (Hot Dipped Galvanized)

Foam Filled Chain Through Buoys

Foam-filled chain support buoys with chain passing through the Buoy, from 1,5 Tons to 4.5 Tons (or more) – Cylindrical or rectangular in shape – Fitted with chain locking plate or chain locking pin, on one of both ends.

Type	Length (mm)	Overall Length (mm)	Diameter (mm)	Weight (kg)	Net Buoyancy (kg)	Net Buoyancy (lbs)
CTB-1500	2000	2660	1195	520	1500	3333
CTB-1700	2000	2660	1260	545	1700	3778
CTB-2000	2000	2660	1325	560	2000	4445
CTB-2250	2000	2660	1395	580	2250	5000
CTB-2500	2000	2660	1450	610	2500	5556
CTB-2750	2000	2660	1505	630	2750	6111
CTB-3000	2000	2660	1565	658	3000	6667
CTB-3500	2000	2660	1680	750	3500	7778
CTB-4500	2000	2660	1900	880	4500	10000

Foam Filled Pick Up Buoys

Small buoyancy units from 90kg to 1t to support a small length of rope or cable wire so to pick up the line. Cylindrical or spherical in shape. Fitted with swivels on each ends.