Yokohama Type Floating Pneumatic Fender

Type I:      Pneumatic rubber fender with chain & tyre net protective jacket

Type II:     Sling type with rubber plate, rubber tube & ropes protective jacket

Type III:    Ribbed type rubber fender

Type IV:    Rope net type protective jacket rubber fender

Type V:     Standard type without any protective jackets

Type VI:    Hydro pneumatic rubber fender

Advantage of Pneumatic Fenders

  1. Higher Safety and Reliability
  2. No Deterioration or Variation in Performance
  3. Higher Performance at Inclined Berthing
  4. Most Cost Competitive System
  5. Soft Reaction Force for Ship and Jetty Structure
  6. Lower Mooring Forces under Rough Weather Conditions
  7. Stronger against Shearing Force
  8. Adaptable to the Tide
  9. Simple and Low Cost Installation
  10. Low Maintenance Cost

Main Structure of Pneumatic Fender 

Yokohama type pneumatic fender is mainly consited of following spare parts

  1. rubber fender body
  2. used vehicle tires or used aircraft tires
  3. protective rubber sleeves
  4. metal hardwares like anchor chains, shackles, swivels, towing rings, etc

 

let’s see below photo to know more about the sturcture of pneumatic fenders

Pneumatic Fender Technical Parameter Table

   50Kpa Pneumatic fender size and performance requirements

Nominal Size

diameter × length

mm

Initial internal pressure

kPa

Guaranteed energy absorption (GEA) Reaction force at GEA deflection

(R)

Hull pressure (Internal pressure)

at GEA deflection (P)

Minimum value at deflection 60 ± 5 % kJ Tolerance ±10 % kN Reference value kPa
500 × 1 000 50 6 64 132
600 × 1 000 50 8 74 126
700 × 1 500 50 17 137 135
1 000 × 1 500 50 32 182 122
1 000 × 2 000 50 45 257 132
1 200 × 2 000 50 63 297 126
1 350 × 2 500 50 102 427 130
1 500 × 3 000 50 153 579 132
1 700 × 3 000 50 191 639 128
2 000 × 3 500 50 308 875 128
2 500 × 4 000 50 663 1 381 137
2 500 × 5 500 50 943 2 019 148
3 300 × 4 500 50 1 175 1 884 130
3 300 × 6 500 50 1 814 3 015 146
3 300 × 10 600 50 3 067 5 257 158
4 500 × 9 000 50 4 752 5 747 146
4 500 × 12 000 50 6 473 7 984 154

  

  80Kpa Pneumatic fender size and performance requirements

Nominal size

diameter × length

mm

Initial internal pressure

kPa

Guaranteed energy absorption (GEA) Reaction force at GEA deflection

(R)

Hull pressure (Internal pressure)

at GEA deflection (P)

Minimum value at deflection

60 ± 5 % kJ

Tolerance ±10 % kN Reference value kPa
500 × 1 000 80 8 85 174
600 × 1 000 80 11 98 166
700 × 1 500 80 24 180 177
1 000 × 1 500 80 45 239 160
1 000 × 2 000 80 63 338 174
1 200 × 2 000 80 88 390 166
1 350 × 2 500 80 142 561 170
1 500 × 3 000 80 214 761 174
1 700 × 3 000 80 267 840 168
2 000 × 3 500 80 430 1 150 168
2 500 × 4 000 80 925 1 815 180
2 500 × 5 500 80 1 317 2 653 195
3 300 × 4 500 80 1 640 2 476 171
3 300 × 6 500 80 2 532 3 961 191
3 300 × 10 600 80 4 281 6 907 208
4 500 × 9 000 80 6 633 7 551 192
4 500 × 12 000 80 9 037 10 490 202
Pneumatic fender, also called Yokohama Floating Fenderis a predominant and high-pressure buffering floating system in marine berthing & mooring application nowadays.
 
The utilization of the compressive elasticity of air provides completely uniform surface pressure on contact, making Yokohama Pneumatic Rubber Fenders as an ideal good shock absorber for ship-to-ship (STS) transfer operations and ship to dock (STD) operations. These fenders play a critical role in the safe operation of ship berthing and mooring for for all kinds of ships and jetties.
 
Pneumatic fender is strictly produced according to ISO17357-1:2014 standard and PIANC guideline in Jerryborg Marine. Any reduction of the guaranteed energy absorption (GEA) is not accepted. What’s more, all pneumatic fenders made by Jerryborg Marine enjoy 24 months warranty. 

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