5-13Ply Reinforcement Ship Launching Airbag with 0.05-0.25 MPA Working Pressure and ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS Certification
Ship Launching Airbags are heavy-duty marine engineering components designed for vessel launching, landing, and controlled translational movement in shipyard and offshore construction environments. Constructed from multi-layer reinforced synthetic tire cord fabric combined with high-strength vulcanized rubber compounds, these cylindrical flexible pressure-bearing structures provide controlled elastic deformation under internal pneumatic loading.
A coastal shipbuilding facility in Hai Phong, Vietnam successfully launched a 2,900-ton general cargo vessel using Ship Launching Airbags in a constrained industrial zone without dry dock infrastructure. The system demonstrated improved load stability, reduced friction resistance, and controlled transition dynamics during the launching process.


| Item | Description |
|---|---|
| Place of Origin | China |
| Brand Name | Hongruntong Marine |
| Product Name | Ship Launching Airbags |
| Material | Top-Notch Natural Rubber |
| Diameter | 0.5m-3.0m, or As Request |
| Length | 1.0m-28.0m, or As Request |
| Working Pressure | 0.05-0.25 Mpa |
| Technics | High Pressure, Overall Winding, Explosion-Proof |
| Use | ship launching and docking |
| Thickness | 5-15 ply |
| Standard | Conducted by ISO14409 and GB/T1590-2006 system |
| Accessories | Q355/SS304/SS316, Pressure Gauge, Tee, Plug, Switch, Inflation Tube |
| Packaging | Inner-Plastic Bag; Outer-Standard Wooden Pallets |
| Keywords | Marine Rubber Airbags for Ship Launching |
| Certificates | ABS, BV, KR, LR, GL, NK, RINA, DNV, RMRS |
| MOQ | 1 |
| OEM | Welcome |
| Diameter | Working Pressure | Working Height | Bearing Capacity KN/m | Bearing Capacity Ton/m |
|---|---|---|---|---|
| D=1.0m | 0.14Mpa | 0.6m | 87.96 | 8.98 |
| D=1.0m | 0.14Mpa | 0.5m | 109.96 | 11.22 |
| D=1.0m | 0.14Mpa | 0.4m | 131.95 | 13.46 |
| D=1.2m | 0.12Mpa | 0.7m | 94.25 | 9.62 |
| D=1.2m | 0.12Mpa | 0.6m | 113.10 | 11.54 |
| D=1.2m | 0.12Mpa | 0.5m | 131.95 | 13.46 |
| D=1.2m | 0.12Mpa | 0.4m | 150.80 | 15.39 |
| D=1.5m | 0.10Mpa | 0.9m | 94.25 | 9.62 |
| D=1.5m | 0.10Mpa | 0.8m | 109.96 | 11.22 |
| D=1.5m | 0.10Mpa | 0.7m | 125.66 | 12.82 |
| D=1.5m | 0.10Mpa | 0.6m | 141.37 | 14.43 |
| D=1.5m | 0.10Mpa | 0.5m | 157.08 | 16.03 |
| D=1.8m | 0.09Mpa | 1.1m | 98.96 | 10.10 |
| D=1.8m | 0.09Mpa | 1.0m | 113.10 | 11.54 |
| D=1.8m | 0.09Mpa | 0.9m | 127.33 | 12.98 |
| D=1.8m | 0.09Mpa | 0.8m | 141.37 | 14.43 |
| D=1.8m | 0.09Mpa | 0.7m | 155.51 | 15.87 |
| D=1.8m | 0.09Mpa | 0.6m | 169.65 | 17.31 |
| D=2.0m | 0.08Mpa | 1.2m | 100.53 | 10.26 |
| D=2.0m | 0.08Mpa | 1.1m | 113.10 | 11.54 |
| D=2.0m | 0.08Mpa | 1.0m | 125.66 | 12.82 |
| D=2.0m | 0.08Mpa | 0.9m | 138.23 | 14.11 |
| D=2.0m | 0.08Mpa | 0.8m | 150.80 | 15.39 |
| D=2.0m | 0.08Mpa | 0.7m | 163.36 | 16.67 |
| D=2.0m | 0.08Mpa | 0.6m | 175.93 | 17.95 |
* Other sizes can be produced following client's requirements.
- High-Strength Multi-Layer Reinforced Structural System: Engineered with multi-layer synthetic tire cord reinforcement embedded within vulcanized elastomeric rubber matrices for enhanced tensile strength and load-bearing stability.
- Controlled Pneumatic Load Conversion Mechanism: Regulated pneumatic inflation converts internal air pressure into controlled lifting force and directional rolling motion.
- Marine Environmental Structural Resistance System: External elastomeric layer engineered for resistance to seawater corrosion, ultraviolet radiation, and mechanical abrasion.
- Fatigue-Optimized Cyclic Load Engineering Design: Designed for repeated inflation and deflation cycles under industrial operating conditions with extended service lifecycle.
- Shipbuilding and Vessel Launching Engineering Systems: Controlled vessel launching operations in shipyards without dry dock infrastructure.
- Marine Salvage and Structural Recovery Operations: Refloating grounded vessels and supporting structural repositioning operations.
- Offshore Construction and Heavy Industrial Deployment Operations: Transportation and deployment of heavy modular structures in coastal construction zones.
- Industrial Manufacturing and Material Engineering Capability: Specialized production system integrating composite material engineering and precision vulcanization technology.
- Engineering Quality Control and Mechanical Testing System: Multi-stage evaluation including internal pressure testing, deformation behavior analysis, and fatigue cycle simulation.
- Project-Based Engineering Customization Capability: Engineering-level customization based on vessel specifications, hull geometry, and operational site conditions.
- Global Supply and Technical Support Infrastructure: Comprehensive logistics and technical service system covering product delivery, installation guidance, and operational training.
The load capacity depends on airbag diameter, reinforcement layer configuration, and system deployment quantity. The system is engineered for scalable application across a wide range of vessel tonnage when properly configured.
Service life is determined by usage frequency, environmental exposure, and maintenance practices. Under standard industrial operating conditions with proper maintenance, the system supports multiple repeated operational cycles.
Pressure is managed using industrial air compression systems equipped with calibrated monitoring instruments. Inflation is performed in controlled stages to ensure stable pressure distribution and structural balance.
The system is engineered for coastal, offshore, and industrial marine environments. It maintains structural performance under humidity, saline exposure, and variable ground conditions commonly found in shipyard operations.
Yes. The structural design supports repeated inflation and deflation cycles. With proper inspection and maintenance, the system maintains stable mechanical performance across multiple launching operations.



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