Dock Fenders Lightweight Structure High Tensile Strength UV Resistant Coating
Description
Submarine Fenders are heavy-duty marine fender systems designed specifically to protect submarines during berthing, mooring, and maintenance operations. Unlike standard dock fenders, submarine fenders are engineered to handle the unique hull shape, weight, and operational requirements of submersible vessels. Constructed from high-energy-absorbing materials such as reinforced rubber and closed-cell foam, they cushion the contact between the submarine hull and quay walls, preventing structural damage. These fenders are corrosion-resistant, UV-stable, and capable of withstanding harsh saltwater conditions for many years. Their low reaction force minimizes the stress on both the submarine and the berth structure, while their modular design allows easy installation and replacement. Submarine fenders can be customized in size, shape, and buoyancy to suit different submarine classes, from small research submersibles to nuclear-powered naval vessels.
( Case: At a major naval base, a new class of submarines was being introduced with a slightly different hull curvature compared to older models. The existing dockside protection was not adequate for the new shape, creating a risk of contact damage during berthing. The facility installed a series of custom-designed submarine fenders, each with a contoured surface that matched the submarine’s hull geometry. The fenders were anchored to the quay and positioned at precise intervals along the berth. During the first operational test, a submarine approached the dock under challenging tidal conditions. The fenders absorbed the kinetic energy smoothly, with minimal hull friction, allowing the vessel to berth safely. Over the following year, the base reported zero hull damage incidents during berthing, and maintenance on the fenders was limited to simple surface inspections, confirming their durability and cost-effectiveness. )
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
Custom Branding and Color Options
Can be manufactured in colors that blend with naval camouflage or commercial branding requirements.
Compliance with International Standards
Meets or exceeds PIANC and ISO guidelines for marine fender performance and safety.
Operational in Wide Temperature Range
Functions reliably from Arctic conditions to tropical climates without material cracking or deformation.
Proven Track Record in Naval and Commercial Use
Used globally by naval forces, research institutes, and offshore operators with decades of operational success.
Applications
Naval Submarine Docking & Berthing
Submarine fenders are essential for protecting submarines during docking at naval bases, preventing hull damage against piers, floating docks, or other submerged structures.
Underwater Research Vessel Mooring
Used to safeguard deep-sea exploration submarines and ROVs (Remotely Operated Vehicles) when mooring near underwater research stations or seabed installations.
Offshore Oil Gas Subsea Infrastructure Protection
Installed around underwater manifolds, pipelines, and wellheads to prevent collision damage from submarines or AUVs (Autonomous Underwater Vehicles) during inspections.
Advantages
Comprehensive After Sales Service
Offering product training, maintenance guidelines, and rapid spare parts supply to ensure uninterrupted operation.
Proven Performance in Harsh Conditions
Products tested and proven in extreme cold, high heat, and heavy sea states, including typhoon and ice conditions.
Strong RD and Innovation Focus
Continuous product improvement through research, field feedback, and collaboration with marine engineering experts.
Trusted by Navies and Industry Leaders
Long-term supplier to naval forces, shipbuilders, and leading offshore contractors worldwide.
FAQ
1 Q: What are submarine fenders used for?
A: Submarine fenders are specialized marine fenders designed to protect submarines during berthing, absorbing impact energy and preventing hull damage.
2. Q: How are submarine fenders different from regular marine fenders?
A: They are custom-shaped to match submarine hull contours, provide low reaction force, and are often non-marking to protect sensitive coatings and equipment.
3. Q: What materials are used in your submarine fenders?
A: We use marine-grade natural and synthetic rubber, high-strength reinforcing fabrics, corrosion-resistant steel, and optional foam-filled cores.
4. Q: Can your fenders be customized to fit specific submarine types?
A: Yes, we design fenders to match the exact shape, size, and performance needs of various submarine classes.
