ISO17357 Hydro Pneumatic Fender 1m-9m Yokohama Rubber Fender With Chain Net
Floating pneumatic rubber fenders, also known as Yokohama fenders or Yokohama-type pneumatic fenders, are constructed from synthetic-cord-reinforced rubber sheets with compressed air inside. The internal air enables flotation on water and serves as a shock absorber between ships (ship-to-ship) or between ships and berthing structures. All Doowin Marine Yokohama-type floating pneumatic rubber fenders are manufactured and tested in full compliance with ISO 17357.
Our Pneumatic Rubber Fenders are available in two common types:
- Type I - Net Type: Covered with a chain net, wire net, or fiber net for small size fenders
- Type II - Sling Type: Features a lifting device on each end for connection with guy chains or ropes. Lightweight and easy to handle without a protection net
Floating pneumatic rubber fenders consist of an outer rubber layer, reinforcement synthetic-tire-cord layer, and inner rubber, all vulcanized firmly together.
- Outer Rubber Layer: Provides superior protection for cord layers and inner rubber, with compounds offering excellent tensile and tear resistance for harsh weather conditions.
- High Quality Synthetic-Tyre-Cord Layer: Maintains internal air pressure while the inner rubber layer seals the pressurized air.
- Safety Valve: Standard on fenders ≥2500mm diameter (optional for smaller sizes) to release excess internal pressure.
- Chain and Tire Net Protection: External chain and tire net (using truck, fiber, or aircraft tires) provide additional protection with easy replacement.
All materials comply with ISO 17357:2014 standards. Contact us for detailed outer and inner rubber material properties.
- 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
| 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 |
| 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 |
Doowin-Marine pneumatic rubber fenders are manufactured and tested to comply with ISO 17357 using Korean production technology.
- ISO 17357 Compliance: Manufactured and tested to comply with the latest ISO standards.
- Soft Reaction Force: Gradual force increase protects ships and mooring facilities even under excess load.
- 15° Inclined Berthing: Maintains energy absorption efficiency at angles up to 15 degrees.
- Shear Force Resistance: Reinforced with strong tire-cord to withstand combined shearing forces.
- Reduced Mooring Forces: Protects ships and facilities in rough weather conditions.
- Tide Adaptability: Floats freely to accommodate tidal range and ship movement.
- Cost-Effective Installation: Simple mooring with guy ropes/chains and easy relocation.
- Low Maintenance: Minimal air leakage requires only annual pressure checks.
- Shipping Efficiency: Ships compactly in vacuumed, folded state via containers or pallets.

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