Floating Tyres And Chain As Shealth Pneuamtic Rubber Fender For
Tugboat
Pneumatic Rubber Fender also known as Pneumatic Marine rubber
fender or Yokohama rubber fender, it is often installed on the
terminal or ship, which aims to absorb or reduce the collision
energy between ship and ship or ship and dock. This kind of product
can protect the ship or dock from the damage of collision.
Pneumatic rubber fender is the advanced anti-collision device for
marine application in the world. It is made of synthetic nylon
lines and compressed rubber sheet. With inner compressed air, it
can float on the water and widely used as protecting medium.
Pneumatic rubber fender can absorb large energy to lower the unit
pressure which effect on the surface of the ship. It is usually
used as an important protecting medium to prevent a collision in
craft works and mooring works.
a. Outer Rubber
Cover outside on the ball of rubber layer, which is used to protect
skeleton material and inner rubber ball from damage of external
force, the main features: high strength, wear resistance, ageing
resistance and tear resistance.
b. Synthetic cord reinforced rubber layer
Reinforced cord rubber layer is composed of winding Synthetic cord
layer, It is mainly used for maintain the internal air pressure,
which has good elasticity, no deformation and high power etc.
c. Inner Rubber
On the ball inside the rubber layer, which is used to prevent air
leakage and control the ball pressure.
d. End Flange
The metal parts at both ends of fender, which can be fitted with
charging valve and safetyvalve.
Advantages and Features of Yokohama floating fenders
1. Easy and fast to deploy
2. Very low reaction and hull pressure
3. Suitable for small and large tidal ranges
4. Maintains large clearance between hull and structure
5. Economical solutions
6. Easily deflateable to be used in different locations and to be
stocked on deck of vessels
7. Built as per ISO 17357
1. For Small & Middle Size Ship
| Ship Tonnage(T) | Recommendation Size D x L ( m) | Ship Type |
| 50 | 0.5 x1.0 | Fishing ship |
| 100 | 0.7 x 1.5~1.0 x 1.5 | Fishing ship |
| 200 | 1.0 x 1.5~1.2 x 2.0 | Fishing ship, towing ship |
| 300-500 | 1.2 x 2.0~1.5 x 2.5 | Fishing ship, towing ship |
| 1000 | 1.5 x 2.5~1.5 x 3.0 | Towing ship, cargo ship |
| 3000 | 2.0 x 3.0~2.0 x 3.5 | cargo ship, ocean trawler |
| 10000 | 2.0 x 3.5~2.5 x 4.0 | cargo ship |
2. For Large-tonnage Ship
Ship Tonnage (DWT) | Assumed Boarding Speed (M/S) | Effective Kinetic Energy (KN.M) | Fender Size D*L (m) |
| 200000 | 0.15 | 1890 | 3.3 x 6.5 |
| 150000 | 0.15 | 1417 | 3.3 x 6.5 |
| 100000 | 0.15 | 945 | 3.0 x 5.0 |
| 85000 | 0.17 | 1031 | 3.0 x 6.0 |
| 50000 | 0.18 | 680 | 2.5 x 5.5 |
| 40000 | 0.20 | 672 | 2.5 x 5.5 |
| 30000 | 0.22 | 609 | 2.5 x 4.0 |
| 20000 | 0.25 | 525 | 2.5 x 4.0 |
| 15000 | 0.26 | 425 | 2.5 x 4.0 |
| 10000 | 0.28 | 329 | 2.0 x 4.0 |
| 5000 | 0.33 | 228 | 2.0 x 3.5 |
These 2 factors are the critical to show the performace of an air
filled marine pneumatic fender. Fenders of 50kPa and 80kPa have
their different performace at a compression of 60%. Below is a data
table of 50kPa and 80kPa of different standard sizes.
Normal size Diameter x Length | Initial Internal pressure 0.05MPa | Initial Internal pressure 0.08MPa |
Guaranteed Energy Absorption(GEA)
| Reaction Force At GEA(RF) | Hull Pressure At GEA(PR) |
Guaranteed Energy Absorption(GEA)
| Reaction Force At GEA(RF) | Hull Pressure At GEA(PR) |
| mm x mm | | KN | Kpa | | Kpa | Kpa |
500x1000 | 6 | 64 | 132 | 8 | 83 | 174 |
600x1000 | 8 | 74 | 126 | 11 | 96 | 166 |
700x1500 | 17 | 137 | 135 | 24 | 178 | 178 |
1000x1500 | 32 | 182 | 122 | 44 | 235 | 161 |
1000x2000 | 45 | 257 | 132 | 63 | 335 | 174 |
1200x2000 | 63 | 297 | 126 | 86 | 386 | 166 |
1350x2500 | 102 | 427 | 130 | 140 | 554 | 170 |
1500x3000 | 153 | 579 | 132 | 211 | 751 | 175 |
1700x3000 | 191 | 639 | 128 | 263 | 830 | 168 |
2000x3500 | 308 | 875 | 128 | 424 | 1138 | 168 |
2500x4000 | 663 | 1381 | 137 | 925 | 1815 | 180 |
2500x5500 | 943 | 2019 | 148 | 1317 | 2653 | 195 |
3000x5000 | 965 | 1815 | 148 | 1341 | 2359 | 198 |
3300x4500 | 1175 | 1884 | 130 | 1640 | 2476 | 171 |
3300x6500 | 1814 | 3015 | 146 | 2532 | 3961 | 191 |
NOTE:1.REACTION FORCE AND ENERGY ABSORPTION TOLERANCE IS ±10% 2.WEIGHT TOLERANCE IS ±10% 3.SPECIAL SIZE CAN BE PRODUCED FOLLOW CUSTOMER'S NEEDS |
Yokohama fendeer with car tyres as jacket
Yokohama fender with aircraft tyres as jacket
Yokohama fender with forklift truck tyresDomestic transportation
Foreign packing
Company profile and certificates
Qingdao XinCheng rubber product Co.,Ltd which founded in 1986. It's
a science and technology-oriented manufacturer that engaged in
marine supplies. Selling all kind of marine fenders and airbag. Our
company's branch — XinCheng Airbag Factory is a professional airbag
factory which make load bearing, floating, store up and
anti-collisional airbags with many usage. Also XinCheng is a
professional airbag and marine fender leading enterprise in
QingDao.
Our company own many professional machineries (internal mixer,
rubber mixing machine, four roll rubber calender, vulcanizer and
vulcanizing boiler with various specifications) . Qingdao XinCheng
rubber company is the only one enterprise who own CCC, CCS,
ISO90001:2008, SGS and Lloyd's Register of Shipping.
