Floating 80 50kpa Pneumatic Fender for Ship Vessel with Chain Net

Pneumatic Fender Structure

①. outer rubber layer

Pneumatic fenders are covered by the outer layer made of natural rubber. This rubber compound is strong enough to protect the inner layer and synthetic-cord layer from the damage of external forces and severe weather conditions due to its high elasticity and abrasion resistance.

②. synthetic-tire-cord layer

The synthetic-tire-cord layer is made of synthetic-tire-cord fabrics, compared with synthetic canvas fabric and synthetic belt fabric, this reinforcement layer performs better in fatigue-resistance and pressure-holding.

③. inner rubber layer

The inner layer is designed to seal the air inside the fender.

Pneumatic Fender Advantages

  1. Advantage Under Severe Weather Conditions

Under normal circumstances, the ship movement caused by high and long-period waves or strong wind will bring repeated compression and shearing forces on the fender and make it easier to be fatigue and damage. However pneumatic fender is strong enough to resist severe weather conditions, the reaction force increases slowly compared with solid fender and won’t easily reach the maximum.

  1. Tide Adaptation

Pneumatic fender is filled with pressure air inside that makes it flexible and easy to float on the water and adapt to the tide variation.

  1. Safety and Reliability

Pneumatic Fenders are constructed of natural rubber, several layers of strong tire-cord, and are thus resistant to pressure and cutting. The safety factor adopted in the design of this fender is based on accepted theory and has been proven by extensive experimentation.

Pneumatic Fender Specification

Pneumatic 50Kpa

Dimension Deflection (60%)
D (mm) L (mm) Reaction Force

(KN)

Guaranteed Energy Absorption

(KNm)

500 1000 64 6
600 1000 74 8
700 1000 137 17
1000 1500 182 32
1000 2000 257 45
1200 2000 297 63
1350 2500 427 102
1500 2500 499 134
1500 3000 579 153
1700 3000 639 191
2000 3500 875 308
2000 4000 1000 352
2500 4000 1381 663
2500 5500 2019 1131
3000 5000 2422 1357
3000 6000 2906 1293
3300 4500 1884 1175
3300 6500 3015 1814

Pneumatic 80Kpa

Dimension Deflection (60%)
D (mm) L (mm) Reaction Force

(KN)

Guaranteed Energy Absorption

(KNm)

500 1000 84 9
600 1000 94 12
700 1000 179 25
1000 1500 236 47
1000 2000 337 66
1200 2000 386 89
1350 2500 554 143
1500 2500 630 179
1500 3000 756 215
1700 3000 829 262
2000 3500 1126 424
2000 4000 1453 740
2500 4000 1817 925
2500 5500 2653 1327
3000 5000 2689 1558
3000 6000 3275 1878
3300 4500 3476 1640
3300 6500 3829 2508
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Pneumatic Fender

 
The pneumatic fender was developed in 1958 in Japan. Progress in the development of such floating pneumatic rubber fenders is closely related to the progress and development of ship technology, and has to continuously cope with progressively larger oil tankers such as VLCC’s, ULCC’s, large gas carriers, bulk carriers and floating structures.

Since pneumatic fender’s creation until today, these pneumatic fenders play a critical role in the safe operation of ship berthing and mooring. 

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