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[China]
Trade Verify
Address: Beilongwan Industrial Park, Jimo District, Qingdao City, Shandong Province, China.
Contact name:Cathy Zhang
QINGDAO SHUNHANG MARINE SUPPLIERS CO., LTD. |
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Verified Suppliers
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Net Type Boat Docking Pneumatic Yokohama Rubber Fender
Product Introduction:
Yokohama rubber fender which is made of synthetic-cord-reinforced rubber sheet with compressed air inside, at initial pressure of 50 kPa or 80 kPa, to enable it to float on the water and work as a shock absorber between two ships, or between ships and berthing structures when they come alongside each other on the water
1. Outer rubber
Rubber layer that covers the outside of the fender to protect the
cord layers and the inner liner rubber from abrasion and other
external forces
2. Inner rubber
Liner of a rubber membrane that seals the pressurized air inside
the fender
3. Synthetic-tyre-cord layer for reinforcement
Layer made of synthetic-tyre-cord fabric, which maintains the
internal air pressure of the fender
Note 1 to entry: As the main fibres of the synthetic-tyre-cord
fabric are not braided like synthetic canvas fabric or synthetic
belt fabric, there are advantages for its fatigue-resistance
performance and pressure-holding performance. .
4. Flange opening
Steel flange which is mounted on the fender, to which an air valve
or safety valve can be adapted
5. Guaranteed energy absorption
Energy that the fender can absorb without permanent deformation or
failure
6. Reaction force
Force produced by a fender reacting to a compressive force
Note : It is equal to the force of the air pressure of the fender
multiplied by the contact area of the fender to the ship or
berthing structure.
7. Initial internal pressure
Air pressure at which an uncompressed fender operates
8. Endurable pressure
inner pressure at which a fender bursts
Specificaton of Yokohama Rubber Fender:
Initial internal pressure : 50kPa or 80kPa.
| Size | Initial Internal Pressure 50kPa | Initial Internal Pressure 50kPa | |||
Diameter/ Meter | Length /Meter | Energy Absorption /KJ | Reaction Force /KN | Energy Absorption /KJ | Reaction Force /KN |
| 0.5 | 1 | 6 | 64 | 8 | 85 |
| 0.7 | 1.5 | 17 | 137 | 24 | 180 |
| 1.0 | 1.5 | 32 | 182 | 45 | 239 |
| 1.0 | 2.0 | 45 | 257 | 63 | 338 |
| 1.2 | 2.0 | 63 | 297 | 88 | 390 |
| 1.5 | 3.0 | 153 | 579 | 214 | 761 |
| 1.7 | 3.0 | 191 | 639 | 267 | 840 |
| 2.0 | 3.5 | 308 | 875 | 430 | 1150 |
| 2.5 | 4.0 | 663 | 1381 | 925 | 1815 |
| 2.5 | 5.5 | 943 | 2019 | 1317 | 2653 |
| 3.0 | 5.0 | 1050 | 2000 | 1571 | 2709 |
| 3.0 | 6.0 | 1312 | 2488 | 1888 | 3292 |
| 3.3 | 4.5 | 1175 | 1884 | 1640 | 2476 |
| 3.3 | 6.0 | 1675 | 2783 | 2338 | 3652 |
| 3.3 | 6.5 | 1814 | 3015 | 2532 | 3961 |
Pneumatic 50 fender size and performance requirements
Nominal size diam- eter × 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 |
Pneumatic 80 fender size and performance requirements
Nominal size diameter × length mm |
Initial internal pres- sure 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 |
Outer and inner rubber material requirements
Test item |
Test method | Required value | |
| Outer rubber | Inner rubber | ||
| 1. Before aging | – | – | – |
| 1.1 Tensile strength | ISO 37:2011 | 18 MPa or more | 10 MPa or more |
| 1.2 Elongation | ISO 37:2011 | 400 % or more | 400 % or more |
| 1.3 Hardness | ISO 7619-1:2010 | 60 ± 10 (Durometer hardness Type A) | 50 ± 10 (Durometer hardness Type A) |
2. After aging |
ISO 188:2011 | Air oven aging, 70°C ± 1°C, 96 h | Air oven aging, 70°C ± 1°C, 96 h |
| 2.1 Tensile strength | ISO 37:2011 | Not less than 80 % of the original property | Not less than 80 % of the origi- nal property |
| 2.2 Elongation | ISO 37:2011 | Not less than 80 % of the original property | Not less than 80 % of the origi- nal property |
| 2.3 Hardness | ISO 7619-1:2010 | Not to exceed the original prop- erty by more than 8 | Not to exceed the original prop- erty by more than 8 |
| 3. Tear | ISO 34-1:2010 | 400 N/cm or more | No requirement |
NOTE If the colour of the outer cover is not black, the material requirements will differ from those in this table. a Parts of ozone per hundred million of air by volume. | |||
| 4. Compression set | ISO 815-1:2008 | 30 %(70 ± 1 °C, 22hours) or less | No requirement |
5. Static ozone aging test |
ISO 1431-1:2012 | No cracks after elongation by 20 % and exposure to 50 pphma at 40 °C for 96 h |
No requirement |
NOTE If the colour of the outer cover is not black, the material requirements will differ from those in this table. a Parts of ozone per hundred million of air by volume. | |||
Application:
-- Oil and gas tankers
-- Fast ferries and aluminium vessels
-- Temporary and permanent installations
-- Rapid response and emergencies
FAQ:
Q1: What's your MOQ?
Answer: Our MOQ is 1pc.
Q2: What's the lifespan of your Yokohama rubber fenders?
Answer: Designed lifespan of our Yokohama rubber fenders is 6 to 10 years
Q3: What's your warranty period?
Answer: Our warranty period is 24 monthes. we will responsible for the repairment or replace the new ones for you if it proved to be our quality problem.
Q4: I have ships but don't know how to choose the Yokohama rubber fenders size and quantity, can you help ?
Answer: Don't worry. We have more than 20 years' experience. Pls tell us your ship information, we can suggest suitable size and quantity for you.
Q5: What kind certificate you can provide.
Answer: CCS,BV,SGS etc.certificate is available
Yokohama rubber fender delivery
