Qingdao Jerryborg Marine Machinery Co., Ltd
Fendering and Floating Solutions
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BV CSS GL Yokohama Rubber Fender High Pressure Mooring Fender
Yokohama Rubber Fender
Jerryborg Yokohama rubber fender is a cost-effective choice cause it's easy to install with low maintenance cost. It's portable and can be delivered to places easily in vacuumed or containers in a state of folded down. Besides, the maintenance expenses mainly include the cost of checking air leakage and replacing the old chain net. And air leakage can be checked only once a year due to its good performance of pressure-holding, the chain net has a long service life of 3-4 years depending on the environmental conditions.
Pneumatic rubber fender types
What Are the Advantages of Pneumatic Rubber Bumper?
1.Great Safety and Reliability
2.No Deterioration or Variation in Performance
3.Numerous Advantages at Inclined Berthing
4.Cost-effective System
5.Softer Reaction Force for Ship and Jetty Structure
6.Stronger against Shearing Force
7.Adaptable to the Tide
8.Simple and Cost-competitive Installation,Low Maintenance Cost
Yokohama Rubber Fender Specifications
Pneumatic 50 Standard Sizes:
| Dimension | Deflection (60%) | ||
| D (mm) | L (mm) | Reaction Force (KN) | Guaranteed Energy Absorption (KNm) |
| 500 | 1000 | 64 | 6 |
| 600 | 1000 | 74 | 8 |
| 700 | 1000 | 137 | 17 |
| 1000 | 1500 | 182 | 32 |
| 1000 | 2000 | 257 | 45 |
| 1200 | 2000 | 297 | 63 |
| 1350 | 2500 | 427 | 102 |
| 1500 | 2500 | 499 | 134 |
| 1500 | 3000 | 579 | 153 |
| 1700 | 3000 | 639 | 191 |
| 2000 | 3500 | 875 | 308 |
| 2000 | 4000 | 1000 | 352 |
| 2500 | 4000 | 1381 | 663 |
| 2500 | 5500 | 2019 | 1131 |
| 3000 | 5000 | 2422 | 1357 |
| 3000 | 6000 | 2906 | 1293 |
| 3300 | 4500 | 1884 | 1175 |
| 3300 | 6500 | 3015 | 1814 |
Pneumatic 80 Standard Sizes:
| Dimension | Deflection (60%) | ||
| D (mm) | L (mm) | Reaction Force (KN) | Guaranteed Energy Absorption (KNm) |
| 500 | 1000 | 84 | 9 |
| 600 | 1000 | 94 | 12 |
| 700 | 1000 | 179 | 25 |
| 1000 | 1500 | 236 | 47 |
| 1000 | 2000 | 337 | 66 |
| 1200 | 2000 | 386 | 89 |
| 1350 | 2500 | 554 | 143 |
| 1500 | 2500 | 630 | 179 |
| 1500 | 3000 | 756 | 215 |
| 1700 | 3000 | 829 | 262 |
| 2000 | 3500 | 1126 | 424 |
| 2000 | 4000 | 1453 | 740 |
| 2500 | 4000 | 1817 | 925 |
| 2500 | 5500 | 2653 | 1327 |
| 3000 | 5000 | 2689 | 1558 |
| 3000 | 6000 | 3275 | 1878 |
| 3300 | 4500 | 3476 | 1640 |
| 3300 | 6500 | 3829 | 2508 |
Yokohama Rubber Fender Structure
Pneumatic fender consists of outer rubber layer, synthetic-tire-cord layer, and inner rubber layer. The outer rubber layer is made of special compounds that are strong with high tensile strength and tear strength to better protect the fender from the damage of severe weather conditions and hard usage. The synthetic-tire-cord layer is a composite tire cord with cross shadow lines, which is designed to distribute stress evenly. While the inner rubber layer is specially designed to seal the internal air and prevent any leakage.
How to Chose Pneumatic Rubber Bumper?
Selection of float rubber fenders for small and medium-sized ships:
| Tonnage(T) | Recommended Dimension:Diameter x Length(m) | Types of Ship |
| 50 | 0.5 × 1.0 | fishing boat |
| 100 | 0.7 × 1.5~1.0 × 1.5 | fishing boat |
| 200 | 1.0 × 1.5~1.2 × 2.0 | fishing boat, towboat |
| 300-500 | 1.2 × 2.0~1.5 × 2.5 | fishing vessel, towboat |
| 1000 | 1.5 × 2.5~1.5 × 3.0 | towboat, cargo ship |
| 3000 | 2.0 × 3.0~2.0 × 3.5 | cargo ship, marine fishing boat |
| 10000 | 2.0 × 3.5~2.5 × 4.0 | freighter |
Selection of float rubber fenders for large tonnage ships:
| Dead Weight Tonnage (DWT) | Assumed Landing Speed(M/S) | Effective Kinetic Energy (KN.M) | Dimension: Diameter×Length(m) |
| 200000 | 0.15 | 1890 | 3.3 x 6.5 |
| 150000 | 0.15 | 1417 | 3.3 x 6.5 |
| 100000 | 0.15 | 945 | 3.0 x 5.0 |
| 85000 | 0.17 | 1031 | 3.0 x 6.0 |
| 50000 | 0.18 | 680 | 2.5 x 5.5 |
| 40000 | 0.20 | 672 | 2.5 x 5.5 |
| 30000 | 0.22 | 609 | 2.5 x 4.0 |
| 20000 | 0.25 | 525 | 2.5 x 4.0 |
| 15000 | 0.26 | 425 | 2.5 x 4.0 |
| 10000 | 0.28 | 329 | 2.0 x 4.0 |
| 5000 | 0.33 | 228 | 2.0 x 3.5 |
Yokohama Rubber Fender Application
Pneumatic fenders are widely used in STS and STD berthing and mooring operations.
1. Ports where tides vary largely
2. Ship to ship oil&gas transfer operations
3. Temporary berthing
4. Fast ferries
5. Permanent installation for dock defense
6. Rapid emergency & response
keywords: Yokohama rubber fender, mooring fender, high pressure mooring fender