Pneumatic Fender | Yokohama Fender

Pneumatic fender, also known as Yokohama fender, is a common floating fender that is used to protect ships and avoid collisions during ship operations. They are also commonly used in the seaport of the wharf to protect ships during berthing operations.
Description FAQ

Pneumatic Fender is made of the synthetic-cord-reinforced rubber sheet with compressed air inside, at an initial pressure of 50kpa or 80kpa, to enable it to float on the water and work as a shock absorber between two ships. As a leading anti-collision device, pneumatic fenders have a long and successful history of protecting vessels in mooring operations. They are ideal for permanent and semi-permanent port applications, as well as for offshore ship-to-ship transfers. Our fenders are fast and easy to install, keeping suitable clearances between the hull and the jetty or vessels. its aim is to minimize potential damage during berthing operations. These fenders play a critical role in the safe operation of ship berthing.

Our pneumatic fenders can be provided with a diameter range from 300 mm to 4,500 mm, a length range from 500 mm to 9,000 mm, or special sizes according to customer requirements. These pneumatic fenders are usually equipped with chain nets and tires or wire rope nets, end rings, traction rings and swivel joints, with suitable D-shaped shackles at both ends to increase service life.

Boomarine offers pneumatic fenders in various sizes and standard or high-pressure versions. Smaller fenders can be provided as a hook type. Larger fenders are usually equipped with chain tire nets to provide additional protection. They are extremely resistant to pressure and cuts, and can withstand wear and tear in harsh weather conditions, which means they are very suitable for harsh marine environments.


The Structures of Pneumatic Fenders:

The pneumatic fender is constructed of an inner rubber, synthetic-tire-cord layer, and outer rubber. All of those shall be vulcanized firmly and proven by compress test.
- Outer rubber layer covers the outside of the fender to protect the cord layers and the inner liner rubber from abrasion and other external forces.
- Inner rubber layer of a rubber membrane that seals the pressurized air inside the fender.
- Synthetic-tyre-cord layer for reinforcement layer made of synthetic-tire-cord fabric, which maintains the internal air pressure of the fender.

Pneumatic Fender


Dimensions & Performances: 

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DxL (mm)
Initial Internal
Guaranteed Energy
Reaction Force at
GEA Deflection (R)
Hull pressure
at GEA deflection (P)
 -- ---  Min. Value at
Deflection 60±5% KJ
Tolerance ±10% KN Reference value Kpa
500 x 1000 50 6 64 132
600 x 1000 50 8 74 126
700 x 1500 50 17 137 135
1000 x 1500 50 32 182 122
1000 x 2000 50 45 257 132
1200 x 2000 50 63 297 126
1350 x 2500 50 102 427 130
1500 x 3000 50 153 579 132
1700 x 3000 50 191 639 128
2000 x 3500 50 308 875 128
2500 x 4000 50 663 1381  137
2500 x 5500 50 943 2019 148
3300 x 4500 50 1175 1884 130
3300 x 6500 50 1814 3015 146
3300 x 10600 50 3067 5257 158
4500 x 9000 50 4752 5747 146
4500 x 12000 50 6473 7984 154

 How does the pneumatic fender work?

The pneumatic fender uses compressed air as a buffer medium to absorb the impact energy of the ship when the two ships are close or the ship is close to the dock, so that the ship can avoid big losses due to collision. At the same time, the ship has more flexibility when docking.


What types of pneumatic fenders can we provide?


Rope Type: The net cover is woven with nylon rope and tied tightly to the ball. Suitable for small boats.
Rubber Net Type: a special rubber pad is tied to the sphere, which can be freely contracted or stretched when squeezed Suitable for small and medium-sized vessels.
Tire Mesh Type: multiple tires are tied to the ball, and the two ends are tied to a special fly ring that can rotate flexibly. Suitable for large ships.


Product Photos:

Yokohama Pneumatic FenderPneumatic Fender
1. Can you provide OEM service?
A: Yes, OEM service is available. According to the different requirements in different applications, colors, sizes, shapes and special specifications can be customized.
2. What is your term of delivery?
A: We accept EXW, FOB, CIF, DDU and DDP, etc. You can choose the one that is the most convenient for you.
3. How long is your pneumatic fenders' delivery time?
A: Generally it is 5-10 days if the pneumatic fenders are in stock. If it is no in stock, it takes 15-20 days but it's basically decided by the quantity.
4. What are your terms of payment?
A: The payment term is flexible. We accept T/T, L/C,  and other terms. Open to discussion.
5. Is there any warranty on the quality of your pneumatic fenders?
A: We have 20 years of experience in producing marine fenders. Each finished fender will be carried out inspection by our Q.C before shipping. Our pneumatic fenders design service life is 20 years, our company has quality warranty at least 18-month.
6. What kind of certificate can you provide for pneumatic fenders?
A:  Any third-party company inspection is available such as ABS, BV, NK, LR, CCS, etc.