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| Categories | Marine Rubber Airbags | 
|---|---|
| Brand Name: | Hongruntong Marine | 
| Model Number: | HM-MRA210 | 
| Certification: | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS | 
| Place of Origin: | China | 
| MOQ: | 1 | 
| Price: | US$63 - US$985 | 
| Payment Terms: | L/C, T/T, D/A, D/P, Western Union, MoneyGram | 
| Supply Ability: | 3658 Pcs Per Month | 
| Delivery Time: | 5-7 Work Days | 
| Packaging Details: | Wooden Pallets, Wooden Box | 
| Name: | Marine Rubber Airbags | 
| Feature: | Safe and Environmentally Friendly | 
| Standard: | ISO14409:2011 | 
| Inner Layer: | Natural Rubber | 
| Material: | High Tensile NR | 
| Reinforcement: | Cord Fabric Layer | 
| Outer Layer: | Natural Rubber | 
| Diameter: | 0.5M-3.0M or As Request | 
| Length: | 3M-28M or As Request | 
| Working Pressure: | 0.05-0.25 MPA | 
| Warranty: | 3 Years | 
| Thickness: | 5-13Ply, or As Request | 
| Logo: | Supported | 
| Package: | Pallets, Wooden Cases | 
| Application: | Vessel Launching and Docking | 
| OEM: | Welcome | 
| Company Info. | 
| Hongruntong Marine LLC. | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
Ship Launching Balloon Portable Design Quick Setup Low Maintenance
Description
Marine Rubber Airbags are highly versatile, portable tools designed to handle the launching, lifting, and movement of ships, heavy equipment, and offshore structures. They eliminate the need for expensive fixed launching facilities like slipways or floating docks. Each airbag is made from premium natural rubber reinforced with multiple layers of high-tensile synthetic cord fabric, ensuring superior strength, elasticity, and resistance to harsh marine conditions.
Marine Rubber Airbags are especially valuable for projects where time, mobility, and cost-efficiency are critical. They can be deployed rapidly, repositioned as needed, and stored compactly when not in use. Their cylindrical shape distributes weight evenly, providing a safe and controlled rolling motion for vessels or heavy components.
Case Study
In 2023, a coastal engineering company in South America used 24
Marine Rubber Airbags to launch a newly built 12,000-ton
roll-on/roll-off ferry. The site had no permanent slipway; instead,
workers prepared a compacted soil path and lined it with
anti-friction mats. Using coordinated inflation and rolling
techniques, the ferry was successfully launched within a single
day. Compared to constructing a temporary dock, the airbag method
reduced costs by 45% and minimized environmental disturbance to the
shoreline.
This project demonstrates how Marine Rubber Airbags make large-scale ship launching practical, fast, and sustainable, even in remote locations.
Specifications
| Product Name | Marine Rubber Airbags | 
| Keywords | Marine Airbag for Ship Launching | 
| 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 | 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. | ||||
Features
Heavy Duty Load Handling
Marine Rubber Airbags are capable of supporting vessels and structures ranging from a few hundred tons to over 25,000 tons. Their multiple-layered construction allows them to sustain high working pressures without deformation or failure. By combining several airbags, even extremely heavy loads can be safely and evenly supported during launching or lifting operations.
High Durability and Marine Resistance
The outer rubber layers are specially formulated to resist abrasion, cuts, and saltwater corrosion. This makes the airbags suitable for harsh environments such as rocky shores, sand, and concrete surfaces. With proper maintenance, their operational lifespan can extend beyond a decade, ensuring consistent reliability over multiple projects.
Fast Flexible Deployment Anywhere
Unlike fixed infrastructure, Marine Rubber Airbags can be transported by truck or container to any project site. Once on location, they can be inflated within minutes and arranged under a vessel or structure. This mobility allows shipyards and contractors to undertake projects in remote or temporary locations without large capital investments.
Enhanced Safety and Precision Control
The airbags provide excellent shock absorption and friction, preventing uncontrolled sliding or damage to vessel hulls. Operators can adjust internal pressure to control lifting force and rolling speed, ensuring a stable and predictable process. Optional overpressure valves and anti-slip mats further improve operational safety.
Applications
Ship Launching and Dry Docking
Ideal for both new ship launches and bringing vessels ashore for maintenance. They are used for fishing boats, ferries, tankers, and offshore platforms.
Heavy Equipment and Structure Relocation
Support the movement of floating docks, bridge sections, and
industrial modules. Their portability allows operations in areas
without permanent infrastructure.
Marine Salvage and Emergency Buoyancy
Quickly deployed to stabilize or refloat sunken vessels, damaged
barges, or offshore structures. Their large buoyancy capacity and
rapid inflation make them indispensable in emergency response.
Pipeline and Offshore Installation
Assist in transporting, positioning, or supporting subsea pipelines
and heavy offshore equipment, where precise buoyancy and lifting
control are required.
Why Choose Hongruntong Marine?
Industry Leading Expertise and RD
Hongruntong Marine has over two decades of experience producing Marine Rubber Airbags. Our in-house R&D team uses advanced simulation and testing to ensure optimal load capacity, safety margins, and material performance. We offer full customization of diameter, length, and working pressure to match specific project needs.
World Class Manufacturing Standards
We use premium raw materials—high-grade natural rubber and multi-strand synthetic cords—processed in ISO-certified factories. Automated winding and vulcanization ensure consistent quality. Every airbag is rigorously tested for pressure retention, tensile strength, and seam integrity before shipment.
Global Proven Success
Our Marine Rubber Airbags have been successfully used in over 40 countries. In 2021, they helped refloat a grounded oil tanker in Southeast Asia within 36 hours, preventing environmental damage. In Europe, our airbags facilitated the transport of a 15,000-ton floating dock to a new location, reducing costs by 30%. These achievements demonstrate the reliability and effectiveness of our products worldwide.
Comprehensive Customer Support
Hongruntong Marine provides more than just products. We offer operation manuals, on-site training, and technical consultation to ensure safe and efficient use. Our after-sales team provides maintenance advice, spare parts, and rapid response for complex projects. This full-service approach builds long-term partnerships and ensures maximum value for customers.
FAQ
1. What sizes and working pressures do the airbags support?
We offer diameters from 0.8m to 2.5m and lengths from 5m to 24m.
Working pressures range from 0.05MPa to 0.25MPa. Multiple airbags
can be combined to handle vessels exceeding 25,000 tons.
2. How should airbags be positioned for launching?
Deflated airbags should be placed at equal intervals under the
vessel’s hull, with protective mats if needed. Gradual inflation
lifts the vessel evenly, and coordinated rolling moves it toward
the water.
3. What maintenance is recommended?
After each use, clean the airbags with fresh water, check for
damage, and store them deflated in a cool, dry location. With
routine inspections and small repairs, service life can exceed 10
years.
4. Are airbags suitable for uneven ground?
Yes. Marine Rubber Airbags can be used on concrete, sand, or
compacted soil. For rough or rocky surfaces, anti-slip mats or
wooden planks are recommended to protect the airbags and maintain
stability.




                                 
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