Qingdao Xincheng Rubber Products Co., Ltd.
Qingdao Xincheng Rubber Products Co., Ltd.
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Yokohama marine fender is a prevailing style of anti-collision device for marine use in the worlld of today.When the ship contacts to ship or berthing facilities, its protective effect against collision is better than that of conventional fenders made of solid rubber fender, due to compressed air used as amortization medium. Having the advantages of large energy absorption, it could be applied extensively to large tankers, LPG vessels,ocean platforms,large docks and harbor wharves,etc to protect ship's side.
Construction of pneumatic fender
Pneumatic Fenders are constructed of three vulcanized layers each providing an important function in the construction and lifespan of the fender. The three layers are
(1) the inner rubber layer
The inner rubber seals pressurised air inside the fender. It is usually constructed of a compound similar to that of an inner tube in a truck or car tyre to ensure a good level of air tightness.
(2) the tyre-cord layers of reinforcement
Synthetic tyre-cord layers have proven to be the best option for strong, efficient reinforcement for pneumatic rubber fenders. Each layer is coated with a rubber compound on both sides that prevents contact between the layers, reducing friction and wear during bending, compression and stretching. The same compound isolates each thread within the layer.This greatly improves the ability of the fender to hold pressure, fatigue resistance and endurance life. Other reinforcing layer materials such as canvas have wear points that significantly reduce the life off the fender.
(3) the outer rubber layer.
The tough abrasion resistant outer rubber is designed to protect the inner rubber and tyre-cord layers from damaging external forces. The material has mechanical properties to withstand the arduous operational conditions for which it is designed.
How to choose the right size fender
| A船舶(DWT) A vessel(DWT) | B船舶(DWT) B vessel(DWT) | 假定接舷速度(m/s) ASSumed speed Access side(m/s) | 有效运动能量(kJ) Effectirve kinetic energy
| 护舷尺寸(D*L) Fender Dimension (D*L) |
| 300,000 | 200,000 | 0.15 | 1230 | 3.3*6.5 |
| 150,000 | 0.15 | 1030 | 3.3*6.5 | |
| 100,000 | 0.15 | 781 | 3.3*6.5 | |
| 200,000 | 150,000 | 0.15 | 882 | 3.3*6.5 |
| 100,000 | 0.15 | 693 | 3.3*6.0 | |
| 85,000 | 0.15 | 618 | 3.0*5.0 | |
| 100,000 | 85,000 | 0.17 | 617 | 3.0*5.0 |
| 50,000 | 0.18 | 511 | 3.0*5.0 | |
| 40,000 | 0.20 | 544 | 3.0*5.0 | |
| 50,000 | 40,000 | 0.20 | 425 | 2.5*5.5 |
| 30,000 | 0.22 | 437 | 2.5*5.5 | |
| 20,000 | 0.25 | 443 | 2.5*5.5 | |
| 20,000 | 15,000 | 0.27 | 318 | 2.5*4.0 |
| 10,000 | 0.30 | 309 | 2.2*3.5 | |
| 5,000 | 0.35 | 253 | 2.0*3.5 | |
| 10,000 | 5,000 | 0.35 | 212 | 2.0*3.5 |
| 3,000 | 0.40 | 196 | 2.0*3.5 | |
| 1,000 | 0.50 | 137 | 2.0*3.0 |
Yokohama Pneumatic Fenders
What is a pneumatic fender?
What is a Yokohama fender?
How much does a Yokohama fender weight?
What are marine fenders?
Why is it called Yokohama fender?
What are ship fenders?