ISO17357 Rubber Fender Reliable Performance Safety Guaranteed Long Service Life
Description
The Pneumatic Rubber Fender is an advanced marine fendering system engineered for superior energy absorption and low reaction force. Its hollow, cylindrical structure, typically fabricated from high-tensile synthetic rubber reinforced with steel cord layers, allows for large deflection and efficient energy dissipation through air compression within the chamber. This design is ideal for scenarios requiring the safe berthing of large vessels in ports with critical infrastructure, where minimizing the forces transmitted to the dock is paramount. The fender's versatility is enhanced by its ability to operate effectively in both floating and fixed installations, accommodating a wide range of tidal variations and berthing angles.
Case Study: Project "Shieldwall" - Protecting a Century Old Quay Wall
A major European port was facing a significant challenge. Its historic main quay, constructed over a century ago, needed to accommodate modern Panamax container vessels. Structural analysis confirmed that the existing quay wall could not withstand the berthing energy and resultant reaction forces from traditional, stiff fendering systems without risking catastrophic damage. The port authority required a solution that would provide maximum energy absorption while exerting the absolute minimum pressure on the aged structure. After extensive finite element analysis (FEA) and prototype testing, our Type PV 3000x6000 Pneumatic Fenders were selected. The key to success was the fender's low reaction force characteristic; at its maximum deflection of 60%, it absorbed the required 3000 kJ of energy while generating a reaction force approximately 25% lower than a cell fender of equivalent capacity. This dramatic reduction in load was the critical factor in preserving the quay's integrity. The fenders were installed in a fixed, face-mounted configuration, and their performance has been continuously monitored, confirming zero structural stress to the quay wall after over 1,500 safe vessel berthings.
Specifications
|
Place of Origin |
China |
|
Brand Name |
Pneumatic Rubber Fender |
|
Material |
Natural Rubber |
|
Color |
Black |
|
Application |
In Ports with Extreme Tidal Variations Ship-to-Ship Lightering Operations Oil Gas (Typically Fsru) Temporary Berthing |
|
Feature |
Heat Resistance |
|
Sample |
Usually Free |
|
Production Method |
Moulding |
|
Temperature |
-40℃~300℃ |
|
Packing |
Pallets |
|
Lead time |
7-14 days |
|
Diameter x Length |
50kPa |
80kPa |
||||
|
Hull Pressure |
Reaction Force |
Energy Absorption |
Hull Pressure |
Reaction Force |
Energy Absorption |
|
|
1000 x 1500 |
122 |
182 |
32 |
160 |
239 |
45 |
|
1000 x 2000 |
132 |
257 |
45 |
174 |
338 |
63 |
|
1200 x 2000 |
126 |
297 |
63 |
166 |
390 |
88 |
|
1350 x 2500 |
130 |
427 |
102 |
170 |
561 |
142 |
|
1500 x 3000 |
153 |
579 |
153 |
174 |
761 |
214 |
|
1700 x 3000 |
128 |
639 |
191 |
168 |
840 |
267 |
|
2000 x 3500 |
128 |
875 |
308 |
168 |
1150 |
430 |
|
2500 x 4000 |
137 |
1381 |
663 |
180 |
1815 |
925 |
|
2500 x 5500 |
148 |
2019 |
943 |
195 |
2653 |
1317 |
|
3300 x 4500 |
130 |
1884 |
1175 |
171 |
2476 |
1640 |
|
3300 x 6500 |
146 |
3015 |
1814 |
191 |
3961 |
2532 |
|
3300 x 10600 |
158 |
5257 |
3067 |
208 |
6907 |
4281 |
|
4500 x 9000 |
146 |
5747 |
4752 |
192 |
7551 |
6633 |
|
* Other size can be produced follow client's requirements. |
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Features
Exceptional Energy Absorption Capacity per Unit
The volumetric efficiency of the pneumatic fender allows it to achieve a very high energy absorption capacity relative to its physical size and weight. This is a critical advantage in offshore logistics, where deck space and lifting capacity are limited. Our advanced design maximizes internal air volume and optimizes the compression curve to deliver one of the highest kJ/tonnage ratios in the industry.
Outstanding Stability with External Bead Rings
A key differentiator for offshore use is stability. Our fenders are equipped with robust, integrally molded external bead rings. These rings act as anchors, significantly increasing the fender's resistance to rolling and twisting upon impact, especially at high deflection angles. This ensures consistent contact and load distribution, which is non-negotiable for protecting expensive vessel hulls and offshore structures.
Superior Tear and Abrasion Resistance
We utilize a proprietary rubber compound with enhanced tear strength and high resistance to cutting, chipping, and abrasion. This is specifically engineered to withstand the harsh conditions of offshore environments, including contact with rough hull surfaces, debris, and prolonged UV exposure, thereby extending the service interval and reducing lifetime operating costs.
Integrated Lifting and Mooring Points
For safe and efficient handling, our offshore-grade fenders come with integrally vulcanized, high-strength pad eyes or lifting lugs. These are designed with a significant safety factor and are tested to handle the dynamic loads encountered during deployment, retrieval, and mooring operations, ensuring operational safety for crew and equipment.
Applications
Offshore Heavy Lift and Construction Operations
Essential for cushioning heavy-lift vessels during the loading/unloading of massive structures like oil & gas modules, offshore wind turbine components, and other outsized cargo where contact forces must be meticulously controlled.
STS Operations for LNG and Crude Carriers
The high energy capacity and stability are crucial for the safe side-by-side mooring of large LNG carriers and VLCCs during cargo transfer. The fenders prevent hull-to-hull contact that could lead to catastrophic consequences, ensuring the integrity of the cargo containment systems.
Floating Dock and Barge Fendering
Used as primary or secondary fendering on the sides of floating docks, repair quays, and large barges, providing a resilient and high-capacity buffer against berthed vessels, even in fluctuating tidal zones.
Why Choose Hongruntong Marine
Unmatched Expertise in Offshore Grade Solutions
We specialize in engineering fenders for the most challenging offshore applications. Our team possesses deep domain knowledge of the unique loads, environmental factors, and operational protocols of the offshore industry, which is reflected in our product design and technical advisory services.
Custom Engineered Solutions for Non-Standard Challenges
We recognize that many heavy-lift and offshore projects are unique. We have a proven track record of designing and manufacturing custom fender solutions, including non-standard sizes, special rubber compounds for extreme temperatures, and integrated accessory systems to meet specific client and project requirements.
Robust Global Logistics and On Time Delivery Promise
We understand that project delays in the offshore sector are costly. Our streamlined logistics and project management ensure that your fenders are delivered on schedule, anywhere in the world, coordinated to meet tight project timelines and vessel availability windows.
Competitive Value Proposition without Compromising Quality
By controlling our manufacturing process and achieving economies of scale, we offer a premium, certified product that provides exceptional long-term value and reliability, reducing the total cost of ownership through extended service life and minimized downtime.
FAQ
Q1: What is the difference between standard and offshore grade pneumatic fenders?
A: Offshore-grade fenders feature enhanced construction: thicker rubber walls, higher-grade steel cord reinforcement, more robust bead rings, and superior anti-abrasion compounds to withstand the harsher mechanical and environmental loads of offshore operations.
Q2: How is the internal pressure of the fender monitored and maintained?
A: Fenders are supplied with a recommended initial internal air pressure. This can be checked with a standard pressure gauge via the integrated valve. For critical applications, we can install permanent pressure sensors for real-time monitoring.
Q3: Are your fenders suitable for use in extreme cold climates?
A: Yes, we offer special low-temperature rubber compounds that remain flexible and retain their physical properties at temperatures as low as -40°C to -50°C, preventing brittleness and cracking.
Q4: What is your warranty policy?
A: We offer a standard warranty against manufacturing and material defects, typically for 3-5 years from the date of shipment, subject to proper use and maintenance as per our guidelines.
Q5: Can you provide type approval certificates from classification societies?
A: Absolutely. We can provide certified copies of type approval certificates from major societies like DNV, LR, and ABS upon request, confirming the fender's compliance with international standards.
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