Single Point Mooring System Chain Support Buoys
General surface chain support buoys are extensively used in
single-point mooring (SPM) systems. These specialized buoys include
cylindrical buoys, chain-through buoys, and pick-up buoys designed
for various marine applications.
Constructed with resilient closed-cell polyethylene/EVA foam around
the inner central steelwork and covered by a polyurethane (PU)
outer skin, these buoys offer exceptional durability. The
closed-cell foam core ensures self-fendering and unsinkable
performance even in case of damage. The self-colored polyurethane
elastomer skin provides excellent resistance to abrasion and UV
degradation. For extreme service environments, the polyurethane
elastomer skin can be reinforced with nylon to enhance tear
strength, resulting in long-lasting, virtually maintenance-free
operation.
Key Features
PU Protective Outer Skin (Polyurethane elastomer skin with 3~10mm
thickness)
Self-fendering (High impact absorption capacity)
Inner Polyethylene Foam (Unsinkable closed cell rigid foam core,
never absorbs water even if PU outer skin is damaged)
Upper End Fitting (Various end fitting options available: swivel
ends, pad-eye, crucifix)
Internal Steel Core (For superior support and balance)
Reinforcement Layer (Reinforced nylon filament ensures polyurethane
elastomer protective coating has higher tear strength)
Three Types of Chain Support Buoys
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, swivel,
or mixed configurations depending on application requirements.
| 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 |
Foam Filled Chain Through Buoys Specification
Foam-filled chain support buoys with chain passing through the
buoy, from 1.5 Tons to 4.5 Tons (or more) - Available in
cylindrical or rectangular shapes - Fitted with chain locking plate
or chain locking pin on one or 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 Specification
Small buoyancy units from 90kg to 1 ton designed to support a small
length of rope or cable wire for line pickup operations. Available
in cylindrical or spherical shapes. Fitted with swivels on each
end.
| Type | Length (mm) | Overall Length (mm) | Diameter (mm) | Weight (kg) | Net Buoyancy (kg) | Net Buoyancy (lbs) |
|---|
| PUB-90 | 660 | 1000 | 515 | 42 | 90 | 200 |
| PUB-225 | 910 | 1570 | 690 | 120 | 225 | 500 |
| PUB-400 | 910 | 1570 | 900 | 155 | 400 | 889 |
| PUB-800 | 910 | 1570 | 1150 | 180 | 800 | 1778 |
Various Colors EVA Foam Offshore Surface Support Cylindrical Buoys with Polyethylene Skin
