Hongruntong Marine Air Bags are state-of-the-art inflatable solutions designed to meet the demanding needs of modern shipyards, offshore engineering projects, and heavy-load industrial transport. Constructed from multiple layers of high-strength synthetic fiber cords embedded in a natural and synthetic rubber matrix, these air bags deliver exceptional tensile and shear strength, uniform load distribution, and controlled deformation under both static and dynamic conditions.
Unlike traditional slipways or steel roller systems, marine air bags provide a flexible, low-cost, and rapidly deployable solution capable of adapting to uneven terrain, variable hull shapes, and tidal fluctuations. Their design incorporates ISO 14409-certified specifications and has undergone rigorous testing to guarantee pressure tolerance, load-bearing capability, and long-term reliability.
In 2021, a Southeast Asian shipyard faced the challenge of relocating a 3,200-ton container vessel from a riverside construction site to a deep-water dock, where traditional slipway launching was impossible due to space limitations and uneven terrain. Hongruntong supplied 24 marine air bags with a diameter of 1.8 meters and length of 18 meters.
The operation was completed in 10 hours, achieving a safe, controlled launch into the water with no hull damage. The project highlighted the bags' ability to handle mid-sized container vessels in constrained environments, demonstrating a cost-effective alternative to permanent slipway construction.
| 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 |
| Standard | ISO14409:2011 |
| 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 |
| D=1.2m | 0.12Mpa | 0.7m | 94.25 | 9.62 |
| D=1.5m | 0.10Mpa | 0.9m | 94.25 | 9.62 |
| D=1.8m | 0.09Mpa | 1.1m | 98.96 | 10.10 |
| D=2.0m | 0.08Mpa | 1.2m | 100.53 | 10.26 |
* Other size can be provided follow client's requirements.
The interior of our air bags features a specialized low-permeability liner that significantly reduces the rate of air diffusion. This engineering ensures consistent pressure is maintained over extended periods.
The outer rubber compound is specifically formulated with anti-ozonants and UV stabilizers. This provides robust protection against the degrading effects of sunlight and atmospheric ozone.
The bag's cylindrical shape and reinforced construction are engineered to distribute the vessel's weight over a large, uniform contact area.
All external metal components, including air valves and lifting lugs, are constructed from 316-grade stainless steel or heavily galvanized carbon steel.
Air bags facilitate the horizontal movement of vessels over land between different locations within a shipyard. The bags act as a mobile, flexible cradle, allowing for precise maneuvering and turning.
In salvage operations, air bags are deployed underwater by divers and strategically positioned under sunken or grounded vessels. Upon inflation, they generate immense buoyant uplift.
Air bags serve as versatile, high-performance fenders and docking aids. They can be used as temporary fendering systems at docks lacking permanent infrastructure.
Hongruntong is not merely a manufacturer; we are pioneers and problem-solvers. Our engineers possess decades of collective experience in marine civil engineering and naval architecture.
We provide a comprehensive partnership that extends far beyond product delivery. Our service encompasses initial feasibility studies, detailed method engineering, on-site operational supervision.
Our product line is the result of a continuous investment in research and development. We actively collaborate with material science institutes and leverage advanced computational modeling.
With a robust global supply chain and a network of technical support partners, we guarantee that the right equipment and expertise are available where and when you need them.
A: For standard models from our catalog, the lead time is typically 4-6 weeks from order confirmation to shipment.
A: We implement a rigorous supplier qualification program and source our high-tensile synthetic cords and specialty rubber compounds from a select group of certified partners.
A: Our standard package includes a detailed Launching/Landing Procedure Manual tailored to your project.
A: Minor external abrasions can be addressed with field repair kits. However, for significant damage, we strongly recommend returning the bag to our factory for a professional assessment.
A: Bag selection is based on a technical calculation that considers the vessel's launching weight, hull form, and the specific conditions of your shipyard.
