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QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.

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China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender
China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender

  1. China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender
  2. China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender
  3. China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender
  4. China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender
  5. China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender
  6. China Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender

Lightweight Pneumatic Rubber Fenders 0.5m-4.5m Yokohama Fender

  1. MOQ: 1pc
  2. Price: USD$ 200~15990$
  3. Get Latest Price
Payment Terms T/T
Supply Ability 10pcs/per week
Delivery Time 2~3 weeks
Packaging Details Pallet or Plywooden Box
Product name Pneumatic Rubber Fenders
Color Black
Material Synthetic tire cord and rubber plies
Diameter 0.5~4.5m
Length 1~9m
Warranty period 2 years
Type Net type, Sling type
Warranty 24 months
Initial Pressure P50, P80
Packing Pallet, iron frame,or as requirement
Application Ship-to-ship or mooring at quay protections
Chain Hot galvanized
Quality Strong enough to maintain the internal air pressure
Design using life 10 years
Feature Soft Reaction Force,Adaptable to The Tide,Against Shearing Force,Aging Resistance,Lower Mooring Forces
Brand Name DOOWIN MARINE
Model Number P50-2040,P50-2035,ect.
Certification CCS BV certification ISO17357 ISO9001,ABS,DNV,LR,CCS
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Supply Ability 10pcs/per week
Delivery Time 2~3 weeks Packaging Details Pallet or Plywooden Box
Product name Pneumatic Rubber Fenders Color Black
Material Synthetic tire cord and rubber plies Diameter 0.5~4.5m
Length 1~9m Warranty period 2 years
Type Net type, Sling type Warranty 24 months
Initial Pressure P50, P80 Packing Pallet, iron frame,or as requirement
Application Ship-to-ship or mooring at quay protections Chain Hot galvanized
Quality Strong enough to maintain the internal air pressure Design using life 10 years
Feature Soft Reaction Force,Adaptable to The Tide,Against Shearing Force,Aging Resistance,Lower Mooring Forces Brand Name DOOWIN MARINE
Model Number P50-2040,P50-2035,ect. Certification CCS BV certification ISO17357 ISO9001,ABS,DNV,LR,CCS
Place of Origin China
High Light Lightweight Pneumatic Rubber FendersPneumatic Rubber Fenders 0.5m4.5m Yokohama Fender
Yokohama Type Marine Ship Factory Directly Supply Pneumatic Rubber Fenders

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.

Pneumatic rubber fender floating between ships

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.

Pneumatic rubber fenders are constructed from synthetic-cord-reinforced rubber sheets with compressed air inside, enabling them to float on water and serve as shock absorbers between ships (ship-to-ship) or between ships and berthing structures during docking operations.
These fenders consist of an outer rubber layer, reinforcement synthetic-tire-cord layer, and inner rubber layer, all vulcanized firmly together. Fenders with diameters of 2500mm and larger include safety valves to release excess internal pressure during accidental over-compression. The material properties comply with ISO 17357:2002 standards.

Pneumatic Fender Applications


  In ports with extreme tidal variations
  Ship-to-ship lightering operations
  Oil & Gas (typically FSRU)
  Temporary bething

Construction Components
  • Outer Rubber: Protects cord layers and inner rubber from abrasion and external forces. The compound offers excellent tensile and tear resistance to withstand harsh weather conditions and heavy usage.
  • Tire Cord Layers: Reinforcement layer designed to maintain internal air pressure integrity.
  • Inner Rubber: Seals the pressurized air within the fender structure.
Close-up of pneumatic rubber fender construction 

Fender Pressure Rating

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)    

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 fender in marine application
Performance Specifications
Floating pneumatic rubber fender performance is measured by Guaranteed Energy Absorption (GEA), Reaction Force at GEA deflection, and Hull Pressure at GEA deflection.
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
Performance Data
D x L (mm) P50 GEA (kNm) P50 Reaction Force (kN) P50 Hull Pressure (kN/m²) P80 GEA (kNm) P80 Reaction Force (kN) P80 Hull Pressure (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
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

Floating 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 : 2002
    All our pneumatic fenders are manufactured and tested comply with ISO 15375 latest edition.

  Soft Reaction Force
    The reaction force does not increase sharply, even under excess load conditions. Can protect ships and mooring facilities.

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

  Against Shearing Force
    Fenders are adequately reinforced using strong tire-cord to cope against combined shearing forces as well as internal.

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

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

  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.

  Low Maintenance Cost
    Maintenance cost is very low. The air leakage is so minimal that it is sufficient to check the air pressure only once a year.

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


Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2011

  • Total Annual:

    3000000-5000000

  • Employee Number:

    60~80

  • Ecer Certification:

    Verified Supplier

Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb... Doowin Marine is a professional manufacturer of ship launching airbags, pneumatic rubber fenders, foam-filled fenders, inflatable pipe plugs, and offshore foam buoys. Doowin Marine is the leading manufacturer of ISO 14409:2011 or CB/T 3795 rubber airbags/marine inflatable airbags. Marine rubber airb...

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  • QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
  • Xiazhuang Industry Park, Chengyang, Qingdao, China
  • https://www.shiplaunchingairbags.com/

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