50kpa and 80kpa Yokohama Net Type Floating Pneumatic Marine Rubber Fenders with Chain and Tire Net for Ship-to-Ship and Ship-to-Port ISO 17357
1.Introduction to Pneumatic Rubber Fenders
1.Outer Rubber
The outer rubber layer covering the exterior of the fender protects the cord layers and inner rubber from abrasion and other external forces. This rubber compound has sufficient tensile and tear strength to withstand various weather conditions and heavy - duty use. The standard color is black, and other colors can be provided upon request.
2.Inner Rubber
The inner rubber, a rubber membrane liner, seals the pressurized air inside the fenders.
3.Synthetic Tire Cord Layers for Reinforcement
The reinforcement layers, made of synthetic tire cords commonly used in tires, are arranged at optimal angles. They can withstand internal pressure, distribute stress evenly, and provide strong and efficient reinforcement.
4.Beading Ring
A steel ring is placed at one or both ends of the fender to secure the ends of the cord layers.
5.Flange
A steel flange is installed on the fender, which can be fitted with an air valve or a safety valve.
6.Safety Valve
Fenders with a diameter of 2500mm or larger must be equipped with a safety valve. It is used to release excess internal pressure when the fenders are accidentally over - compressed. For fenders with a diameter smaller than 2500mm, a safety valve can be installed if required.
7.Metal Accessories
All relevant metal accessories of pneumatic fenders, including shackles, towing rings, swivels, and chain nets, are made of stainless steel, which is resistant to seawater corrosion.
2. Parameter Table
| Pneumatic 50 fender size and performance requirements |
| Nominal size diameter x length mm | Initial internal pressure kPa | Guaranteed energy absorption (GEA) | Reaction force at GEA deflection(R) | Hull pressure (Internal pressure) at GEA deflection (P) |
| Minimum value at deflection 60±5% kJ | Tolerance±10 % kN | Reference value kPa |
| 500 x 1000 | 50 | 6 | 64 | 132 |
| 600 x 1000 | 50 | 8 | 74 | 126 |
| 700 x 1500 | 50 | 17 | 137 | 135 |
| 1000 x 1500 | 50 | 32 | 182 | 122 |
| 1000 x 2000 | 50 | 45 | 257 | 132 |
| 1200 x2000 | 50 | 63 | 297 | 126 |
| 1350 x 2500 | 50 | 102 | 427 | 130 |
| 1500 x 3000 | 50 | 153 | 579 | 132 |
| 1700 x 3000 | 50 | 191 | 639 | 128 |
| 2000 x 3500 | 50 | 308 | 875 | 128 |
| 2500 x 4000 | 50 | 663 | 1381 | 137 |
| 2500 x5500 | 50 | 943 | 2019 | 148 |
| 3300 x 4500 | 50 | 1175 | 1884 | 130 |
| 3300 x 6500 | 50 | 1814 | 3015 | 146 |
| 3300 x 10600 | 50 | 3067 | 5257 | 158 |
| 4500 x 9000 | 50 | 4752 | 5747 | 146 |
| 4500 x 12000 | 50 | 6473 | 7984 | 154 |
| Pneumatic 80 fender size and performance requirements |
| Nominal size diameter x length mm | Initial internal pressure kPa | Guaranteed energy absorption (GEA) | Reaction force at GEA deflection (R) | Hull pressure (Internal pressure) at GEA deflection (P) |
| Minimum value at deflection 60±5% kJ | Tolerance±10% kN | Reference value kPa |
| 500 x 1000 | 80 | 8 | 85 | 174 |
| 600 x 1000 | 80 | 11 | 98 | 166 |
| 700 x 1500 | 80 | 24 | 180 | 177 |
| 1000 x 1500 | 80 | 45 | 239 | 160 |
| 1000 x2000 | 80 | 63 | 338 | 174 |
| 1200 x 2000 | 80 | 88 | 390 | 166 |
| 1350 x 2500 | 80 | 142 | 561 | 170 |
| 1500 x 3000 | 80 | 214 | 761 | 174 |
| 1700 x 3000 | 80 | 267 | 840 | 168 |
| 2000 x 3500 | 80 | 430 | 1150 | 168 |
| 2500 x 4000 | 80 | 925 | 1815 | 180 |
| 2500 x 5500 | 80 | 1317 | 2653 | 195 |
| 3300 x 4500 | 80 | 1640 | 2476 | 171 |
| 3300 x 6500 | 80 | 2532 | 3961 | 191 |
| 3300 x 10600 | 80 | 4281 | 6907 | 208 |
| 4500 x 9000 | 80 | 6633 | 7551 | 192 |
| 4500 x 12000 | 80 | 9037 | 10490 | 202 |
3. Pneumatic Rubber Fender Features
Unique Design of Henger Pneumatic Rubber Fenders
1.Active - Protecting Safety Valve: All fenders are equipped with a safety valve to release internal air in case of accidental overpressure. This patented design can prevent the fenders from exploding due to collision and inflation.
2.Henger Flange: It is cast from corrosion - resistant cast iron with a galvanized anti - corrosion coating. This can significantly extend the quality and service life of the fenders. The strength of Henger cast flanges is 40% higher than that of traditional types.
4.Our advantages
1.Safety and Reliability
Henger pneumatic rubber fenders are constructed from high-quality natural rubber and reinforced with multiple layers of robust tire cords, boasting exceptional pressure resistance and cut resistance. The safety factor integrated into their design is rooted in widely recognized engineering theories and has been validated through extensive experimental testing, ensuring optimal performance in real-world scenarios.
2.Patented Active-Protecting Safety Valve Design
Every Henger pneumatic rubber fender is outfitted with a patented safety valve, engineered to automatically release internal air in the event of accidental overpressure. This proactive mechanism prevents potential damage, adding an extra layer of operational safety.
3.Consistent Performance with No Deterioration
Leveraging the compressive elasticity of air, Henger pneumatic rubber fenders maintain their performance integrity over time—eliminating the risk of degradation caused by material fatigue, even with prolonged use.
4.Superior Performance in Inclined Berthing Scenarios
A key advantage of Henger pneumatic rubber fenders lies in their stable energy absorption capabilities: even when subjected to inclined compression angles of up to 15 degrees, their energy absorption efficiency remains uncompromised.
5. Pneumatic Rubber Fender Application
There are two typical installation types: ship - to - ship operation and ship - to - dock operation.
a. Ship - to - ship operation
Generally, two contact points are sufficient for light - duty ship - to - ship operations. However, for heavy - duty ship - to - ship operations, 1 or 2 additional pneumatic rubber fenders should be used as the primary fenders. They can absorb the berthing energy and maintain a proper stand - off distance between the two ships. At the same time, two or more small - size fenders can be hung on the ship hull as secondary fenders.
b. Ship - to - dock operation
Pneumatic fenders are often used in ship - to - quay operations due to their excellent performance. The pneumatic fenders are anchored to the quay with guy chains and shackles. Meanwhile, the pneumatic fenders can float on the water surface according to the change of tides.
6. Pneumatic Rubber Fender Transportation
In terms of transportation, we can adopt deflated pallet transportation or full fender transportation without deflation according to customer requirements. We always put customer needs first.
7. Pneumatic Rubber Fender storage
1.When pneumatic rubber fenders are not used for a long time, they should be cleaned and dried, filled with appropriate compressed air, and stored in a dry, cool, and ventilated place. The storage temperature should be maintained at - 15℃ - 40℃.
2.The storage place of the fenders should be far away from heat sources.
3.The fenders must not come into contact with acids, alkalis, greases, and organic solvents.
4.When not in use, the fenders must not be stacked, and should not be placed on the ba. To better extend the service life of pneumatic rubber fenders, it is recommended to store them in strict accordance with the above recommendations.
8. After-sale service
1.The product warranty period of Henger is 24 months, which is longer than that of the average supplier. This also reflects the trust between us and our customers in the products of our factory.
2.Our after - sales service is available 24 hours a day. As long as you have any questions, we will always be here. Professional staff will answer your questions and provide you with technical support.
3.Transportation: We can adopt deflated pallet transportation or full fender transportation without deflation according to customer requirements. We always put customer needs first.
