Tyres With Chain Yokohama Marine Fenders , Ship Fender For Ship
Protection
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?
