China Maker Boat Pneumatic Rubber Fender Natural Rubber Yokohama Ship Fender
Pneumatic rubber fenders are made of synthetic-cord-reinforced rubber sheets with compressed air inside to enable them to float on the water and work as a shock absorber between two ships (ship-to-ship), or between ships and berthing structures when they come alongside each other on the water.
Pneumatic rubber fenders shall consist of an outer rubber, reinforcement synthetic-tire-cord layer, and inner rubber, vulcanized firmly. Fenders of diameter 2500mm and larger are equipped with safety valve for releasing excess internal pressure when the fenders are over-compressed accidentally. The properties requirements of outer and inner rubber material of floating pneumatic rubber fenders comply with ISO 17357:2002.
- Outer Rubber
The outer rubber is used to protect the cord layers and inner rubber from abrasion and other external forces. This rubber compound has sufficient tensile and tear resistance strength to withstand anticipated weather conditions and severe usage. - Tire Cord Layers
The reinforcement synthetic-tire-cord layer is strong enough to maintain the internal air pressure of the fender. - Inner Rubber
The inner rubber layer seals the pressurized air inside the fender.


Pneumatic Rubber Fender Performance
The performance of floating pneumatic rubber fenders shall be specified in terms of Guaranteed Energy Absorption (GEA), Reaction Force at GEA deflection, and Hull Pressure at GEA deflection.
| Pneumatic Fenders Item | Pneumatic Rubber Fenders Parameter |
| Fender Diameter | 0.5 ~ 4.5m |
| Fender Length | 1.0 ~ 9m |
| Initial Pressure | 50kPa and 80kPa |
| Fender Type | Sling type, Net type, Hydro-pneumatic fender |
| Fender Standard | ISO 17357 : 2014 |
| Fender Application | Ship-to-ship, ship-to-port |
| D x L (mm) | P50 GEA (kNm) | P50 Reaction Force (kN) | P50 Hull Pressure (kN/m2) | P80 GEA (kNm) | P80 Reaction Force (kN) | P80 Reaction Force (kN/m2) |
| 500x1000 | 6 | 64 | 132 | 8 | 85 | 174 |
| 600x1000 | 8 | 74 | 126 | 11 | 98 | 166 |
| 1000x1500 | 32 | 182 | 122 | 45 | 239 | 160 |
| 1000x2000 | 45 | 257 | 132 | 63 | 338 | 174 |
| 1200x2000 | 63 | 297 | 126 | 88 | 390 | 166 |
| 1350x2500 | 102 | 427 | 130 | 142 | 561 | 170 |
| 1500x3000 | 153 | 579 | 132 | 214 | 761 | 174 |
| 1700x3000 | 191 | 639 | 128 | 267 | 840 | 168 |
| 2000x3500 | 208 | 875 | 128 | 430 | 1150 | 168 |
| 2500x4000 | 663 | 1381 | 137 | 925 | 1815 | 180 |
| 2500x5500 | 943 | 2019 | 148 | 1317 | 2653 | 195 |
| 3300x4500 | 1175 | 1884 | 130 | 1640 | 2476 | 171 |
| 3300x6500 | 1814 | 3015 | 146 | 2532 | 3961 | 179 |

