The Yokohama Pneumatic Fender (also known as Marine Air Bag Dock Fender) is a high-performance marine protection solution developed by China Marine Rubber (Qingdao) Industrial Co., Ltd., a professional manufacturer focusing on Rubber Fender System. This fender uses internal compressed air as the cushioning medium to effectively absorb impact energy, making it suitable for both small and large vessels. Available in a wide range of sizes (from 300×500mm to 4500×9000mm), it provides reliable protection for hulls and docks during berthing or ship-to-ship operations. Smaller models are designed with hook-type installations for easy handling, while larger fenders are equipped with chain-type nets to enhance structural protection.
Size (mm) | Reaction Force (kN) | Absorption Energy (kNm) | Test Pressure (Kpa) | Fender Weight (Kg) | Chain Net Weight (Kg) | Synthetic Fiber Weight (Kg) |
300×500 | 14 | 1 | 8 | - | - | - |
400×800 | 30 | 3 | 20 | - | - | - |
500×1000 | 54 | 5 | 145 | 25 | 30 | 20 |
600×1000 | 65 | 7 | 145 | 28 | 30 | 22 |
700×1500 | 115 | 14 | 145 | 64 | 150 | 40 |
1000×1500 | 156 | 28 | 145 | 125 | 190 | 80 |
2500×4000 | 1049 | 464 | 175 | 1560 | 1260 | 910 |
4500×9000 | 5688 | 4688 | 175 | 4575 | 4810 | 3520 |
Inspect the Yokohama Pneumatic Fender for surface damage or air leaks before installation.
For small hook-type fenders: Fix the hooks to the vessel’s designated mounting points, ensuring a secure connection.
For large chain-net fenders: Wrap the chain net around the fender first, then attach the net to the dock or vessel using steel cables.
Inflate the fender to the specified test pressure (8–175 Kpa, depending on size) using a pressure-regulated air pump.
Check the internal pressure weekly; refill air if pressure drops below the recommended level.
Inspect the rubber surface and chain net monthly for wear, cracks, or rust; replace damaged parts promptly.
Clean the fender with fresh water regularly to remove salt deposits and marine organisms.
The Yokohama Pneumatic Fender complies with international marine standards, including:
ISO 9001 Quality Management System Certification
CCS (China Classification Society) Certification
Strict quality control during production, from raw rubber selection to final product testing, ensuring consistent performance.
China Marine Rubber provides a 12-month warranty for manufacturing defects, with professional after-sales support.
Yes. We offer customized sizes (beyond the standard range) and accessories (e.g., special chain nets) to meet specific customer needs. Contact our sales team for details.
Stop using the fender immediately, deflate it, and inspect the leak location. Small leaks can be repaired with rubber repair kits; large leaks require professional maintenance or replacement.
More Details about Pneumatic Fender
Ultra-low reaction force and hull pressure: Minimizes damage to vessel hulls and dock structures during impact, ensuring long-term service life of both.
Easy installation and handling: Lightweight design and flexible installation methods (hook-type for small sizes, chain-net for large sizes) reduce labor and time costs.
Strong adaptability to tidal ranges: Performs stably in ports with extreme tidal variations, maintaining consistent protection efficiency regardless of water level changes.
High energy absorption capacity: With energy absorption values ranging from 1 kNm to 4688 kNm (depending on size), it effectively dissipates impact energy from vessel berthing.
Durable rubber material: Resists wear, aging, and corrosion in marine environments, ensuring long-term reliability even in harsh conditions.
The Yokohama Pneumatic Fender is widely used in various marine scenarios, including:
Coast guard vessels: Protects law enforcement ships during emergency berthing or rescue operations.
Ship-to-ship operations: Ensures safe cargo transfer between vessels by absorbing mutual impact.
Oil & Gas industry: Shields oil tankers and offshore platforms from collision damage during loading/unloading.
Temporary berthing: Provides flexible protection for vessels needing short-term mooring.
Commercial ports: Suitable for large cargo ships, cruise ships, and other large vessels in busy harbors.