Hongruntong Marine LLC.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 5990 Pcs Per Month |
| Delivery Time | 5-7 Work Days |
| Packaging Details | Wooden Pallets, Wooden Box |
| Product Name | Marine Air Bag |
| Material | High Tensile NR |
| Inner Layer | Natural Rubber |
| Reinforcement | Cord Fabric Layer |
| Outer Layer | Natural Rubber |
| Diameter | 0.5M-3.0M or as Request |
| Feature | Safe and Environmentally Friendly |
| Length | 3M-28M or as Request |
| Working Pressure | 0.05-0.25 MPA |
| Standard | ISO14409:2011 |
| Product Life Expectancy | >20 years |
| Thickness | 5-13Ply, or as Request |
| Application | Vessel Launching and Docking |
| Colour | Black or Customized |
| Brand Name | Hongruntong Marine |
| Model Number | HM-MAB21 |
| Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 5990 Pcs Per Month |
| Delivery Time | 5-7 Work Days | Packaging Details | Wooden Pallets, Wooden Box |
| Product Name | Marine Air Bag | Material | High Tensile NR |
| Inner Layer | Natural Rubber | Reinforcement | Cord Fabric Layer |
| Outer Layer | Natural Rubber | Diameter | 0.5M-3.0M or as Request |
| Feature | Safe and Environmentally Friendly | Length | 3M-28M or as Request |
| Working Pressure | 0.05-0.25 MPA | Standard | ISO14409:2011 |
| Product Life Expectancy | >20 years | Thickness | 5-13Ply, or as Request |
| Application | Vessel Launching and Docking | Colour | Black or Customized |
| Brand Name | Hongruntong Marine | Model Number | HM-MAB21 |
| Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS | Place of Origin | China |
Marine Air Bag is a heavy-duty inflatable rubber system designed for large-scale ship launching, vessel transportation, and offshore marine engineering operations. It is manufactured using multi-layer high-tensile synthetic tire cord reinforcement combined with industrial-grade vulcanized rubber, forming a flexible cylindrical structure capable of sustaining extreme compressive and dynamic rolling loads during shipyard operations.
The system is engineered for high-pressure working environments with typical operating pressure ranging from 0.18 MPa to 0.30 MPa depending on vessel tonnage and engineering configuration. This allows the airbag to maintain structural stability while supporting heavy ship hulls during launching and landing processes.
Marine Air Bag operates through a controlled rolling mechanism that significantly reduces friction between hull and ground surface, providing smoother and safer vessel movement compared to traditional steel slipway systems. The outer rubber layer is designed for extreme environmental durability, offering resistance to seawater corrosion, oil contamination, UV radiation, and mechanical abrasion.
A large offshore shipyard in East Asia was commissioned to launch a 9,500 DWT offshore support vessel designed for deep-sea operations. The project presented significant challenges due to the vessel's heavy reinforced hull structure, high displacement weight, and lack of available dry dock capacity.
Hongruntong Marine designed a customized high-load Marine Air Bag system using 1.5m diameter units with 10-layer reinforced construction and enhanced pressure tolerance. A total of 22 airbags were installed under the vessel according to precise engineering load distribution calculations based on hull geometry and structural stress modeling.
During the launching operation, the vessel was gradually transferred from dry land to water using a controlled rolling system with synchronized air pressure regulation across all airbags. Despite the extreme load conditions, the system maintained stable structural performance without deformation, pressure imbalance, or operational failure. The entire launching process was completed within 65 minutes.
Post-operation inspection confirmed zero hull coating damage and no structural stress concentration issues. The shipyard reported a 45 percent reduction in operational cost compared to traditional dry dock launching methods and confirmed the system's reliability for repeated heavy-duty offshore vessel operations.
| 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 sizes can be provided following client's requirements.
Marine Air Bag adopts a multi-layer reinforced composite structure designed to withstand extreme vessel loads. The layered synthetic tire cord reinforcement ensures uniform stress distribution across the cylindrical body, preventing structural failure under heavy compression and maintaining stable performance during dynamic rolling operations.
The system is engineered for high internal pressure environments up to 0.30 MPa, providing strong lifting capacity and structural stability for large-scale ship launching operations. The pressure system ensures controlled deformation and safe load transition during vessel movement.
The outer rubber compound is designed for harsh marine and industrial environments, offering resistance to seawater corrosion, chemical exposure, UV degradation, and mechanical abrasion. This ensures long-term durability under continuous shipyard operation conditions.
The internal reinforcement layers are optimized for repeated cyclic loading, allowing multiple reuse cycles without significant degradation in structural performance. This ensures long service life under frequent industrial usage.
Marine Air Bag is widely used in launching offshore support vessels, cargo ships, and heavy marine engineering structures requiring high load capacity and controlled launching precision in industrial shipyards.
The system is suitable for large-scale shipbuilding facilities where dry dock infrastructure is limited or unavailable, enabling efficient launching of high-tonnage vessels without permanent structures.
Marine Air Bag is applied in marine engineering projects requiring temporary heavy structure movement, controlled lifting, and flexible transportation support in coastal environments.
Hongruntong Marine operates high-standard production systems capable of manufacturing heavy-duty marine airbag products with strict process control and consistent industrial quality output.
Each system is developed based on detailed vessel engineering analysis including hull structure, weight distribution, and operational environment to ensure optimal performance.
All products undergo pressure testing, structural fatigue simulation, and multi-cycle load verification to ensure safety and reliability under extreme operating conditions.
Hongruntong Marine has delivered Marine Air Bag systems to international shipyards with proven performance in diverse environmental and operational scenarios.
Marine Air Bags can be configured for vessels exceeding 10,000 DWT depending on engineering design and system layout.
Yes, the system is suitable for coastal and offshore shipyard environments with proper engineering configuration.
Safety is ensured through multi-layer reinforcement structure and controlled pressure balancing system across all airbags.
Under normal industrial usage conditions, the service life typically ranges from 5 to 8 years depending on frequency of use.
Yes, Hongruntong Marine provides full customization based on vessel specifications and project requirements.
Company Details
Business Type:
Manufacturer
Year Established:
1990
Total Annual:
5,256,780-5,593210
Employee Number:
220~360
Ecer Certification：
Verified Supplier
Hongruntong Marine is a leading marine company specializing in providing comprehensive services in the maritime industry. With a strong emphasis on quality, safety, and efficiency, we strive to meet the evolving needs of our clients. Established in 1990, Hongruntong Ma... Hongruntong Marine is a leading marine company specializing in providing comprehensive services in the maritime industry. With a strong emphasis on quality, safety, and efficiency, we strive to meet the evolving needs of our clients. Established in 1990, Hongruntong Ma...
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