Floating pneumatic rubber fenders are known as Yokohama fenders or Yokohama-type pneumatic fenders. Floating pneumatic rubber fenders are made of the synthetic-cord-reinforced rubber sheet with compressed air inside. The insider air can enable it to float on the water and work as a shock absorbed between two ships (ship-to-ship), or between ships and berthing structures when they come alongside each other on the water. All Doowin Marine Yokohama type floating pneumatic rubber fenders are manufactured and tested fully compliant with ISO 17357
Floating pneumatic rubber fenders can be easily handled and installed with guy-rope or guy-chain because of their lightweight. It can resist the shearing force and maintain energy absorption level under inclined compression up to 15 degrees. Meanwhile, provide low and comparatively even hull pressure.
Consisted of several synthetic-cord layers and tough abrasion-resistant rubber, they have consistent performance even under rough conditions and cyclic load. The maintenance cost and damage risk are minimized too. The best material also ensures self-buoyancy and extremely long service life.
Pneumatic fenders are available from 500 mm to 4,500 mm in diameters, and from 500 mm to 9,000 mm in length. All sizes of pneumatic rubber fenders are available as sling-type or with a heavy-duty chain & tire net. We also supply vertical hydropneumatic fenders for submarines. Foam filled fenders are floating fenders too.
Note: The floating pneumatic rubber fenders have sometimes been colloquially referred to as “Yokohama Fenders” or “Yokohama type fenders” – ISO 17357:2002 Ships and marine technology — High-pressure floating pneumatic rubber fenders.
Doowin-Marine pneumatic rubber fenders are manufactured and tested to comply with ISO 17357.
Our real Yokohama-type pneumatic fenders are made by mold based on Korean production technology.
All our pneumatic fenders are manufactured and tested comply with ISO 15375 latest edition.
The reaction force does not increase sharply, even under excess load conditions. Can protect ships and mooring facilities.
The pneumatic fender’s energy absorption does not decrease at inclined compression up to 15 degrees.
Fenders are adequately reinforced using strong tire-cord to cope against combined shearing forces as well as internal.
This fender safely protect ships and mooring facilities even under rough weather conditions.
Float on the water in an unrestricted vertical plane corresponding to the tidal range and ship's vertical movement.
Fender can be moored simply by means of a guy rope or chain. It can be removed easily to a suitable jetty or quay.
Maintenance cost is very low. The air leakage is so minimal that it is sufficient to check the air pressure only once a year.
The fenders are usually packed and shipped in containers or on pallets in vacuumed and folded down state.
There are two initial pressure rating for our Pneumatic Rubber Fenders.
■ Pneumatic 50 (P50, Initial internal pressure 50kPa)
■ Pneumatic 80 (P80, Initial internal pressure 80kPa)
There are two common types our Pneumatic Rubber Fenders.
■ Type I — Net Type Covered with a chain net, wire net, or fiber net for small size fenders
■ Type II — Sling Type This type of fender has a lifting device on each end, which shall be connected with a guy chain or guy-rope. Without a protection net, easy to handle with lightweight)
Net-type fenders (TypeⅠ) are covered with a chain net, wire net, or fiber net. Each end of longitudinal chains, wires, or fibers is linked together with one or two ring(s), which shall be connected with a guy chain or guy-rope. Usually, these nets have used tires together with rubber sleeves for additional protection to the fender body, except for fiber net which has only rubber sleeves. Chain nets last longer against corrosion, while wire nets are light and more easily repaired.
Our company developed several types of hanging rings. Our pneumatic rubber fenders can rotate freely with any type of handing ring. We also can make and supply special customized hanging rings.
Floating pneumatic rubber fenders shall consist of an out rubber, reinforcement synthetic-tire-cord layer, and inner rubber, vulcanized firmly.
The properties requirements of outer and inner rubber material of floating pneumatic rubber fenders comply with ISO 17357:2014.
For the Properties of Outer and Inner Rubber Material, please contact us to get.
The out rubber are used to protect the cord layers and inner rubber. This rubber compound have sufficient tensile and tear resistance strength to withstand anticipated weather conditions and severe usage.
The reinforcement synthetic-tyre-cord layer strong enough to maintain the internal air pressure of the fender. The inner rubber layer seals the pressurized air inside the fender.
Pneumatic Fenders of diameter 2500mm and larger are equipped with a safety valve for releasing excess internal pressure. Smaller fenders can be equipped upon required.
The outside chain and tire net provide the extra protction for the rubber fender body. We can use turck tire, fiber net, or aircraft tires. It can be changed easily.
We make floating pneumatic rubber fenders with 50kPa (pneumatic 50) and 80kPa (pneumatic 80) initial pressure.
Our pneumatic rubber fender’s internal pressure, endurable pressure, safety-valve setting pressure are fully compliant with the requirements of ISO 17357.
Pneumatic Fenders Item | Pneumatic Rubber Fenders Parameter |
|---|---|
Fender Diameter | 0.5 ~ 4.5m |
Fender Length | 1.0 ~ 9m |
Initial Pressure | 50kPa and 80kPa |
Fender Type | Sling type, Net type, Hydro-pneumatic fender |
Fender Standard | ISO 17357 : 2014 |
Fender Application | Ship-to-ship, ship-to-port |
D x L (mm) | P50 GEA (kNm) | P50 Reaction Force (kN) | P50 Hull Pressure (kN/m2) | P80 GEA (kNm) | P80 Reaction Force ( kN) | P80 Reaction Force (kN/m2) |
|---|---|---|---|---|---|---|
500x1000 | 6 | 64 | 132 | 8 | 85 | 174 |
600x1000 | 8 | 74 | 126 | 11 | 98 | 166 |
1000x1500 | 32 | 182 | 122 | 45 | 239 | 160 |
1000x2000 | 45 | 257 | 132 | 63 | 338 | 174 |
1200x2000 | 63 | 297 | 126 | 88 | 390 | 166 |
1350x2500 | 102 | 427 | 130 | 142 | 561 | 170 |
153 | 579 | 132 | 214 | 761 | 174 | |
1700x3000 | 191 | 639 | 128 | 267 | 840 | 168 |
2000x3500 | 208 | 875 | 128 | 430 | 1150 | 168 |
2500x4000 | 663 | 1381 | 137 | 925 | 1815 | 180 |
2500x5500 | 943 | 2019 | 148 | 1317 | 2653 | 195 |
3300x4500 | 1175 | 1884 | 130 | 1640 | 2476 | 171 |
3300x6500 | 1814 | 3015 | 146 | 2532 | 3961 | 179 |
EXCELLENT IN PRACTISE – ISO 17357 APPROVED
There are some pictures of our pneumatic fenders ready for shipping in our own factor.
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The wrapped pneumatic rubber fenders are made by integral winding technique. The fender’s surface isn’t not so smooth similar with molded pneumatic fender. But its performance meet the request of ISO 17357. The price is much lower too. The wrapped pneumatic rubber fenders have sling type, chain and tire net type. We can equip the truck tire or aircraft tire on the fender’s body.
The molded pneumatic rubber fenders are made by mold different from the wrapped fenders. This production technology is similar to Yokohama Rubber. The fender’s surface is very smooth. Its performance is better with longer lifespan. Its price is higher too. The molded pneumatic rubber fenders have sling type, chain and tire net type. We can equip the truck tire or aircraft tire on the fender’s body too.
Produce and Test Full Compliant with ISO 17357, BV, CCS, ABS, LR Third Party Certificates.
DOOWIN Marine is the World’s Leading Manufacturer of Pneumatic Fenders, and China’s Manufacturer complies with ISO17357-1:2014 fully.
We have a branch plant in Malaysia. Can provide the repair services for your pneumatic rubber fenders of neighboring countries, Yokohama fenders, like change tires, repair fender body, and end fittings.
ISO 17357-1:2014 specifies the material, performance, and dimensions of low-pressure floating pneumatic rubber fenders, which are intended to be used for the berthing, and mooring of a ship to another ship or berthing structure. It also specifies the minimum test and inspection procedures for floating low-pressure pneumatic rubber fenders.
ISO 17357-1:2014 does not address the methods for selecting the correct fender type or any safety hazards associated with its use.
The pneumatic fenders have sometimes been colloquially referred to as “Yokohama fenders” or “Yokohama type fenders”. Because the Yokohama pneumatic fender was developed in 1958 by Yokohama Rubber Co.,Ltd based on their rubber technology for automotive tires and rubber aircraft fuel tanks. It is the initial maker of this type pneumatic fenders.
Pneumatic fenders can be produced using different methods and each has its own advantages. The most common methods are molded and wrapped. Our pneumatic fenders are made by whole-wrapping technology. We donot use model to produce. But its performance reaches ISO 17357. And its cost is lower.
Our warranty period is 24 months. During this period, if there is any quality problem under the correct use and storage, we promise to change and repair them for free.
Normally, we provide the manufacturer certificate free of charges. We also can provide the BV, LR, ABS, CCS third party certificate upon the client’s request. The inspection fee is charged by day.
Welcome you contact us to get more information. We will provide more information about floating Yokohama pneumatic rubber fender’s installation, performance curve, accessories, selection and design.
Telephone: +86-532-67730629
Mobile: +86-18660257896 (WhatsApp)
Email: sales@doowinmarine.com
Address: Xiazhuang, Chengyang, Qingdao, China
Telephone: +86-532-8778 8178
Mobile: +86-186 6025 7896 (WhatsApp)
Email: sales@doowinmarine.com
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Email: sales@doowinmarine.com
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Telephone: +86-532-67730629
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