Marine Fenders High Energy Efficiency Long Service Life Stable Performance
Description
For deep-sea research operations, Submarine Fenders provide vital protection when docking sensitive and expensive submersible vessels. Research subs are often equipped with delicate sensors, cameras, and scientific instruments mounted externally. Even minor collisions during docking can result in costly repairs or data loss. Submarine fenders for research applications are designed with smooth, non-marking surfaces and high shock absorption to ensure the vessel’s instruments remain undamaged. They are often made from foam-filled cores encased in abrasion-resistant polyurethane or rubber layers, offering long service life with minimal maintenance.
( Case: A marine research institute operated a 12-person submersible used for studying deep-sea ecosystems. The docking area, located in a busy harbor, experienced frequent swell and boat traffic, creating unstable berthing conditions. To safeguard the submersible, the institute installed floating submarine fenders along the dock. These fenders rose and fell with the water level, maintaining consistent contact with the sub’s hull during docking. On one mission return, unexpected waves from a passing cargo ship hit just as the sub was approaching the dock. The floating fenders absorbed the sudden impact, preventing the sub from striking the concrete quay. The crew later reported that without the fenders, sensitive sonar arrays on the bow might have been damaged. )
Specifications
| Material |
SBR, NR |
| Size Available |
3.3*10.6M |
| Tensile Strength |
=> 18 MPA |
| Density |
90+/-5 |
| Colour |
Black |
| Application |
Submarine, ferry, oil rigs and so on |
| Hardness |
40-70 Shore A |
| Elongation |
=> 400 |
| Tear Strength |
=> 400 N/cm |
| Breaking Strength |
>310 |
|
Chemical Resistance
|
Fuel A: No deterioration |
| Oil 3: No deterioration |
| Lubricating oil: No deterioration |
| Cutting oil: No deterioration |
| Dilute HCL: No deterioration |
Diameter x
Length |
Initial
Internal
Pressure |
Ship
Radius |
Water
Ratio |
Guaranteed
Energy
Absorption |
Reaction
Force
at GEA |
Hull
Pressure
at GEA |
Deflection
at GEA |
| (mm x mm) |
(kPa) |
(mm) |
(%) |
(kJ) |
(kN) |
(kPa) |
(%) |
| 1500 x 6100 |
50 |
3000 |
60% |
131 |
562 |
140 |
51% |
| 80 |
186 |
754 |
188 |
| 1700 x 7200 |
50 |
4000 |
65% |
167 |
682 |
137 |
47% |
| 80 |
239 |
918 |
184 |
| 2000 x 6000 |
50 |
4000 |
70% |
135 |
544 |
131 |
41% |
| 80 |
194 |
736 |
177 |
| 2500 x 5500 |
50 |
4500 |
65% |
225 |
769 |
135 |
41% |
| 80 |
322 |
1035 |
182 |
| 2500 x 7700 |
50 |
4500 |
70% |
326 |
1016 |
136 |
41% |
| 80 |
470 |
1368 |
183 |
| 3300 x 6500 |
50 |
4500 |
75% |
307 |
887 |
127 |
35% |
| 80 |
442 |
1203 |
173 |
| 3300 x 10600 |
50 |
5000 |
65% |
1003 |
2137 |
142 |
47% |
| 80 |
1429 |
2863 |
190 |
| 4500 x 9000 |
50 |
5000 |
60% |
1439 |
2401 |
138 |
46% |
| 80 |
2059 |
3228 |
185 |
| 4500 x 12000 |
50 |
6000 |
65% |
1977 |
3198 |
141 |
46% |
| 80 |
2819 |
4277 |
189 |
Characteristics
Easy Installation and Replacement
Modular mounting systems allow for quick setup or swap-out without major berth modifications.
Adaptability to Fixed or Floating Berths
Suitable for naval bases, shipyards, offshore platforms, and floating docks.
Resistance to Compression Set
Maintains shape and energy absorption ability even after prolonged static loads from moored submarines.
Enhanced Safety for Sensitive Equipment
Protects externally mounted sonar arrays, periscopes, and research instruments from collision impact.
Applications
Submarine Rescue Operations
Deployed in rescue missions to cushion contact between rescue submarines (DSRV) and disabled submarines, ensuring safe docking for crew transfer.
Underwater Military Installations
Protect secret underwater bases, sonar arrays, or submarine pens from accidental impacts during covert operations.
Floating Dry Dock Submarine Maintenance
Used in dry docks and shipyards to absorb impacts when submarines are positioned for repairs, refits, or maintenance.
Advantages
Foam Filled Rubber Cell Options
We produce both foam-filled and hollow-cell submarine fenders to suit fixed, floating, or offshore berthing requirements.
Rapid Production Delivery
Large-scale manufacturing capacity allows us to fulfill bulk orders and urgent replacement needs without compromising quality.
Experienced Technical Support Team
Our engineers provide full technical assistance, from design consultation to on-site installation guidance.
Low Maintenance, Long Service Life
Our fenders are designed for 15+ years of operational use with minimal maintenance, lowering lifecycle costs.
FAQ
1. Q: What is the typical lifespan of your submarine fenders?
A: With proper maintenance, our fenders can last over 15 years in normal marine conditions.
2. Q: Do your fenders meet international standards?
A: Yes, they comply with PIANC, ISO, and ASTM guidelines for marine fender performance and safety.
3. Q: Are your submarine fenders suitable for both fixed and floating berths?
A: Absolutely. We produce models for fixed quay walls, floating docks, and offshore structures.
4. Q: How do you ensure product quality?
A: Each fender undergoes raw material inspection, dimensional checks, tensile and compression testing, and full-scale performance simulation before delivery.
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