Qingdao Henger Shipping Supply Co., Ltd
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Inflatable rubber fenders are called Yokohama fenders, also known as marine ball fenders
Yokohama was the first company to design such fenders. Hence the name. The traditional method is to find and use dead whales as large fenders for bigger ships. After the World-War II, many turned to find a better, more constant man-made equipment since the usage of dead whales has many downsides to it. Rubber was thought to be a excellent material.
So being the most trusted rubber tire manufacture in Japan at the time, the ‘Yokohama’ company was approached to design up a suitable solution. The first big issue was that making a fender straight-up using rubber would be too costly. Projected costs make it impossible to achieve. The company managed to eventually come up with the idea of using the principles of pneumatic. Pressurised air absorbs energy well enough with a reasonable reaction force. Now, commonly the working pressures of pneumatic fenders use are 50 kPa and 80kPa.
The story of the origin of these fenders is indeed a very interesting development of the industry. Today, these awesome low-cost, low-maintenance fenders are governed by ISO Standard. ISO 17357 consists of the two parts, high pressure and low pressure. Under the general title Ships and marine technology — Floating pneumatic rubber fenders. ISO17357:2014 is the latest version of the standard. It specifies the material, performance, and dimensions of floating pneumatic rubber fenders. Our company's pneumatic fenders are also produced and tested strictly in accordance with ISO17357:2014 standards.
Marine rubber fender is the most advanced marine anti-collision device in the world today. It uses compressed air cells as a medium to absorb impact energy during ship-to-ship contact (STS). It uses compressed air as the medium to absorb the impact energy when the ship is berthing.It plays a vital role in the safe operation of ship berthing and mooring, so it is widely used in ships, offshore facilities, offshore platforms, port terminals, yachts and other fields. Inflatable rubber fenders are more economical and applicable than ordinary rubber fenders, so they are very popular.
♦—— The specification of marine rubber fender :
| size D×L(m) | Initial pressure(Po) is 0.05MPa | Initial pressure (Po) is 0.08MPa | ||||
| Weight kg | R(kN) | GEA(KJ) | Weight kg | R(kN) | GEA(KJ) | |
| 0.5×1.0 | 25 | 64 | 6 | 25 | 83 | 8 |
| 0.6×1.0 | 32 | 74 | 8 | 32 | 96 | 11 |
| 0.7×1.5 | 50 | 137 | 17 | 50 | 178 | 24 |
| 1.0×1.5 | 80 | 182 | 32 | 80 | 235 | 44 |
| 1.0×2.0 | 100 | 257 | 45 | 125 | 335 | 63 |
| 1.2×2.0 | 120 | 297 | 63 | 165 | 386 | 86 |
| 1.35×2.5 | 165 | 427 | 102 | 226 | 554 | 140 |
| 1.5×3.0 | 315 | 597 | 153 | 370 | 751 | 211 |
| 1.7×3.0 | 405 | 639 | 191 | 436 | 830 | 263 |
| 2.0×3.5 | 590 | 875 | 308 | 632 | 1138 | 424 |
| 2.5×4.0 | 1050 | 1381 | 663 | 1110 | 1815 | 925 |
| 2.5×5.5 | 1333 | 2019 | 943 | 1410 | 2653 | 1317 |
| 3.0×5.0 | 1880 | 2104 | 1210 | 2155 | 2709 | 1571 |
| 3.0×6.0 | 2160 | 2583 | 1485 | 2470 | 3292 | 1888 |
| 3.3×4.5 | 2020 | 1884 | 1175 | 2300 | 2476 | 1640 |
| 3.3×6.0 | 2300 | 2783 | 1675 | 2600 | 3652 | 2338 |
| 3.3×6.5 | 2700 | 3015 | 1814 | 3080 | 3961 | 2532 |
| Height: the height of rubber fendernon- coxcombing, Inaccuracy of weight: ±10% Inaccuracy of reaction force: ±10% | ||||||
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