Marine Air Bag is a high-capacity inflatable rubber launching and lifting system engineered for demanding shipyard operations involving large displacement vessels, heavy structural loads, and complex marine environments. It is manufactured using multi-layer high-tensile synthetic tire cord reinforcement combined with premium marine-grade vulcanized rubber, forming a cylindrical elastic structure capable of sustaining extreme compressive stress and dynamic rolling forces.
The system is designed for high-load industrial applications with working pressure typically ranging from 0.18 MPa to 0.30 MPa depending on vessel size and engineering configuration. This allows Marine Air Bags to maintain structural stability while supporting heavy hull sections during launching, landing, and controlled water entry operations.
A large shipbuilding yard in the Middle East was contracted to launch an 8,500 DWT multipurpose offshore supply vessel designed for oil platform support operations. The vessel featured reinforced hull construction, heavy deck equipment installation, and high structural displacement, requiring a highly stable launching system under extreme desert coastal conditions with high ground temperature and abrasive sand-based terrain.
Hongruntong Marine engineered a reinforced Marine Air Bag system using 1.5m diameter units with 10-layer high-strength reinforcement structure and enhanced thermal resistance rubber compound. A total of 20 air bags were deployed under the vessel following detailed load distribution modeling and ground pressure analysis.
During the launching operation, synchronized inflation control systems ensured uniform pressure balance across all air bags while the vessel was gradually transferred toward the waterline using controlled rolling motion. Despite high surface temperatures and abrasive ground conditions, the system maintained stable structural performance without pressure loss or deformation.
The launching process was completed within 62 minutes under controlled operational conditions. Post-launch inspection confirmed zero hull coating damage, no structural stress concentration, and stable vessel integrity. The client reported a 47 percent reduction in operational cost compared to traditional skid launching systems and confirmed improved reliability in high-temperature coastal environments.
| Product Name | Marine Air Bag |
| Material | 100% High Tensile NR |
| Dimensions | Diameter 0.5m - 3.0m, Length 3.0m - 28.0m, or as Request |
| Working Pressure | 0.05-0.25MPA |
| Technology | Overall Winding, High Pressure, Explosion Proof |
| Metal Parts | Q355 / SS304 / SS316 |
| OEM | Supported |
| MOQ | 1 |
| Repair Tools | Electric Heating Plate, Repair Materials, Glue, Free of Charge |
| Standard | ISO14409:2011 |
| Certificate | ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS |
| Package | Pallets, Wooden Cases |
| Service Life | 20 Years |
| Warranty | 36 Months |
| Diameter | Working Pressure | Working Height | Bearing Capacity KN/m | Bearing Capacity Ton/m |
|---|---|---|---|---|
| D=1.0m | 0.14Mpa | 0.6m | 87.96 | 8.98 |
| 0.5m | 109.96 | 11.22 | ||
| 0.4m | 131.95 | 13.46 | ||
| D=1.2m | 0.12Mpa | 0.7m | 94.25 | 9.62 |
| 0.6m | 113.10 | 11.54 | ||
| 0.5m | 131.95 | 13.46 | ||
| 0.4m | 150.80 | 15.39 | ||
| D=1.5m | 0.10Mpa | 0.9m | 94.25 | 9.62 |
| 0.8m | 109.96 | 11.22 | ||
| 0.7m | 125.66 | 12.82 | ||
| 0.6m | 141.37 | 14.43 | ||
| 0.5m | 157.08 | 16.03 | ||
| D=1.8m | 0.09Mpa | 1.1m | 98.96 | 10.10 |
| 1.0m | 113.10 | 11.54 | ||
| 0.9m | 127.33 | 12.98 | ||
| 0.8m | 141.37 | 14.43 | ||
| 0.7m | 155.51 | 15.87 | ||
| 0.6m | 169.65 | 17.31 | ||
| D=2.0m | 0.08Mpa | 1.2m | 100.53 | 10.26 |
| 1.1m | 113.10 | 11.54 | ||
| 1.0m | 125.66 | 12.82 | ||
| 0.9m | 138.23 | 14.11 | ||
| 0.8m | 150.80 | 15.39 | ||
| 0.7m | 163.36 | 16.67 | ||
| 0.6m | 175.93 | 17.95 |
* Other size can be provided follow client's requirements.
Marine Air Bags are designed with multi-layer reinforced composite construction that ensures uniform load distribution and stable structural performance under heavy vessel weights and dynamic launching conditions.
The rubber compound is formulated to maintain mechanical stability and elasticity under high-temperature environments, making it suitable for desert coastal and tropical shipyard operations.
The system ensures controlled stress dispersion across the entire airbag body, minimizing localized deformation and ensuring smooth rolling behavior during vessel transfer.
Marine Air Bags are engineered for repeated heavy-duty usage cycles, maintaining structural integrity under long-term industrial shipyard operations and frequent vessel launches.