ISO 17357 Certificated and Approved

Yokohama Type Floating Pneumatic Rubber Fenders

The wrapped pneumatic rubber fenders are made by the integral winding technique. Its performance meets the ISO 17357. The price is much lower than molded Yokohama fenders.

Quality Assurance

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 a 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 an 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.

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Pneumatic Fenders Classification

Our pneumatic rubber fender’s internal pressure, endurable pressure, and safety-valve setting pressure are fully compliant with ISO 17357.

Fender Pressure Rating

There are two initial pressure ratings for our Pneumatic Rubber Fenders.
■ Pneumatic 50 (P50, Initial internal pressure 50kPa)
■ Pneumatic 80 (P80, Initial internal pressure 80kPa)

Pneumatic Fender Type

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)

Pneumatic Fenders Specification

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
1500x3000	153	579	132	214	761	174
1700x3000	191	639	128	267	840	168
2000x3500	208	875	128	430	1150	168
2500x5000	663	1381	137	925	1815	180
3000x6000	943	2019	148	1317	2653	195
3300x4500	1175	1884	130	1640	2476	171
3300x6500	1814	3015	146	2532	3961	179

Sling Type Pneumatic Fender

Truck Tire Chain Net Fender

Aircraft Tire Chain Net Fender

Extra End Tires Fender

Pneumatic Fender Construction

Floating pneumatic rubber fenders 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 it.

ISO 17357-1:2014 Ships and marine technology — Floating pneumatic rubber fenders — Part 1: High pressure
ISO 17357-2:2014 Ships and marine technology — Floating pneumatic rubber fenders — Part 2: Low pressure

Our Factory Stock

Manufactuered and Produced Comply with ISO17357

Pneumatic Rubber Fenders Advantages

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.

ISO 17357

All our pneumatic fenders are manufactured and tested comply with ISO 15375 latest edition.

Adaptable to The Tide

Float on the water in an unrestricted vertical plane corresponding to the tidal range and ship's vertical movement.

Against Shearing Force

Fenders are adequately reinforced using strong tire-cord to against combined shearing forces.

Low Cost Installation

Fender can be moored simply by means of a guy rope or chain. It can be removed easily to a suitable jetty or quay.

Soft Reaction Force

The reaction force does not increase sharply, even under excess load conditions.

15° Inclined Berthing

The pneumatic fender’s energy absorption does not decrease at inclined compression up to 15 degrees.

Lower Mooring Forces

This fender safely protect ships and mooring facilities even under rough weather conditions.

Ship Cost Minimization

The fenders are usually packed and shipped in containers or on pallets in vacuumed and folded down state.

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Doowin Marine is professional MANUFACTURER of ship launching airbags, pneumatic rubber fenders, foam filled fenders, inflatable pipe plugs, and offshore foam buoys.

Our floating fenders include pneumatic rubber fenders and foam filled fenders. Our Yokohama type pneumatic rubber fenders are produced and inspected complying with ISO 17357.

Our engineers and consultants have been in fabrication and use these products for more than 30 years. Doowin Marine products passed rigorous ISO 9001:2008 Quality Management System, approved by the third party SGS, BV, CCS, ABS, LR, BV.

We are proud to provide the highest quality products, together with expert service and timely customer support. Let’s help you successfully complete your project – on budget and on time.

Professional Manufacturer of Floating Pneumatic Rubber Fenders, Foam Filled Fenders, Ship Launching Marine Rubber Airbags, Offshore Foam Buoys, Pipe Plugs.

About Doowin Marine

Qualified Floating Pneumatic Rubber Fenders

ISO 9001:2015 Certificate

ABS Third Party Certificate

LR Third Party Certificate

BV Third Party Certificate

Client Testimonials

We cooperated with Doowin for many years. Their engineers are professional and experienced. Gave us a lot of valuable project proposals. Their marine fenders and airbags are qualified and meet ISO international standard. Their services are top-level. We are very fortunate to know Doowin team.