Marine Salvage Airbags Flexible Anti Aging Corrosion Resistant
Marine Salvage Airbags are specialized buoyancy devices engineered for underwater lifting, refloating, and marine construction support. Designed with advanced composite fabrics, these airbags provide high tensile strength, superior airtightness, and exceptional corrosion resistance, ensuring reliable performance under harsh oceanic conditions. When inflated, Marine Salvage Airbags generate controlled buoyancy that enables operators to lift or reposition submerged objects safely and efficiently, whether in shallow harbors or deep-sea environments.
Case Study: Barge Refloating Operation - Rotterdam Port, Netherlands
In mid-2024, a construction barge used for dredging operations capsized at Rotterdam Port due to uneven ballast distribution, leaving the 18-ton structure partially submerged near a dockyard entrance. The incident posed significant disruption risks to the port's cargo flow. Hongruntong Marine's technical team was commissioned to design a rapid salvage solution using Marine Salvage Airbags.
After site evaluation and underwater inspection, the team deployed six cylindrical airbags with a combined buoyancy of 25 tons. The airbags were secured along the barge's port and starboard beams using high-strength webbing and steel shackles. Inflation was carried out gradually through synchronized compressors, allowing precise lift control to counterbalance residual water weight inside the hull.
Within four hours, the barge was successfully refloated and stabilized without hull deformation or environmental pollution. The entire operation was completed within one tide cycle--two hours faster than mechanical crane recovery. The client commended the system's simplicity, low operational footprint, and outstanding control during the lift, marking another milestone for Hongruntong's Marine Salvage Airbags in European port applications.
Specifications
| Product Name |
Marine Salvage Airbags |
| Raw Material |
PVC Coating Fabric |
| Type |
Cylindrical |
| Size |
500kg, 1000kg, 5000kg 10000kg, etc |
| Thickness |
0.4-1.2mm, or as Request |
| Color |
Yellow, Blue, Black, etc |
| Density |
0.33-0.9g/cm3 |
| Safety Factor |
7:1 |
| Tolerances |
+/- 0.03 on Densities +/- 0.2 mm on Thickness +/- 0 to +3mm on Width +/- 0 to +3mm on Length |
Model Specifications
| Model |
Buoyancy |
Diameter |
Length |
Appr. Weight |
| HM-MSA01 |
200 kg
(441 lbs) |
500 mm |
1,000 mm |
5 kg |
| HM-MSA02 |
500 kg
(1,103 lbs) |
800 mm |
1,000 mm |
8 kg |
| HM-MSA03 |
1,000 kg
(2,205 lbs) |
1,000 mm |
1,500 mm |
11 kg |
| HM-MSA04 |
2,000 kg
(4,410 lbs) |
1,300 mm |
1,500 mm |
20 kg |
| HM-MSA05 |
4,000 kg
(8,820 lbs) |
1,600 mm |
2,000 mm |
50 kg |
| HM-MSA06 |
6,000 kg
(13,230 lbs) |
2,000 mm |
2,000 mm |
66 kg |
| HM-MSA07 |
8,000 kg
(17,640 lbs) |
2,000 mm |
2,600 mm |
75 kg |
| HM-MSA08 |
10,000 kg
(22,050 lbs) |
2,400 mm |
2,400 mm |
80 kg |
| HM-MSA09 |
15,000 kg
(33,075 lbs) |
2,600 mm |
3,000 mm |
110 kg |
| HM-MSA10 |
20,000 kg
(44,100 lbs) |
3,000 mm |
3,000 mm |
130 kg |
| HM-MSA11 |
30,000 kg
(66,150 lbs) |
3,000 mm |
4,500 mm |
170 kg |
| HM-MSA12 |
50,000 kg
(110,250 lbs) |
4,000 mm |
4,000 mm |
220 kg |
| HM-MSA13 |
70,000 kg
(154,350 lbs) |
4,000 mm |
5,700 mm |
310 kg |
| HM-MSA14 |
100,000 kg
(220,500 lbs) |
4,000 mm |
8,000 mm |
450 kg |
| HM-MSA15 |
150,000 kg
(330,750 lbs) |
5,000 mm |
8,000 mm |
660 kg |
| HM-MSA16 |
200,000 kg
(441,000 lbs) |
5,000 mm |
10,000 mm |
900 kg |
*Note: Other sizes can be customized according to the requirements.
Features
-
Reinforced Composite Structure for Harsh Conditions
Marine Salvage Airbags are built with reinforced layers of high-tenacity polyester fabric coated with heavy-duty PVC or polyurethane. This provides excellent tensile strength, puncture resistance, and impermeability. Each airbag undergoes precision heat-welding and seam testing to ensure no leakage under maximum load. The material's anti-UV and anti-oil properties allow long-term use in seawater, oil-contaminated zones, or riverine operations.
-
Smart Inflation and Pressure Regulation System
Equipped with precision-engineered valves, Marine Salvage Airbags allow operators to control inflation in real-time, enabling fine buoyancy adjustments. The modular design supports both simultaneous and sequential inflation, preventing uneven stress distribution. A pressure relief system automatically releases excess air to avoid over-inflation, significantly improving underwater safety and operational accuracy.
-
Efficient Transport and Deployment
Compact and lightweight, the airbags can be rolled, packed, and transported easily to any offshore or port site. During operations, divers can rapidly secure the airbags to structural attachment points with stainless steel D-rings and load straps. This ease of transport and quick setup reduces on-site preparation time, making them ideal for time-sensitive salvage or construction projects.
-
Multi Layer Safety Assurance
Marine Salvage Airbags integrate several safety measures, including dual inner chambers, overpressure protection valves, and real-time surface pressure monitoring. Even if one chamber is damaged, the secondary chamber maintains sufficient buoyancy to stabilize the object. This redundancy ensures operational reliability and minimizes the risk of accidents during complex underwater operations.
Applications
-
Port Barge and Tugboat Recovery
Perfect for use in busy commercial ports, Marine Salvage Airbags efficiently lift sunken barges, tugboats, or pontoon structures without the need for large cranes. The modular buoyancy design allows safe and flexible refloating operations in narrow waterways.
-
Marine Construction and Piling Support
In offshore or harbor engineering, these airbags provide buoyant support for pipelines, steel piles, or underwater concrete modules. Their controlled inflation allows gradual lowering or precise positioning of heavy components on the seabed.
-
Salvage and Debris Removal
Marine Salvage Airbags are also widely applied in environmental cleanup and wreckage removal operations. They can lift debris, containers, or submerged machinery, helping restore navigable waters and maintain port safety.
Why Choose Hongruntong Marine
-
Decades of Operational Expertise
Hongruntong Marine combines over 15 years of experience in underwater lifting, salvage, and marine logistics. Our team of engineers and divers has participated in numerous international projects across Asia, Europe, and the Middle East, earning a reputation for reliability and technical precision.
-
Engineering Customization for Every Scenario
We design Marine Salvage Airbags tailored to each project's conditions--whether it involves vessel tonnage, water depth, or environmental restrictions. From material selection to valve configuration and lifting geometry, every specification is customized for maximum efficiency and safety.
-
Comprehensive Global Support
Hongruntong Marine provides complete technical assistance, including pre-operation planning, on-site supervision, and post-salvage inspection. Our global service network ensures prompt response and full support for marine contractors, port authorities, and offshore operators worldwide.
-
Certified Quality and Safety Assurance
All Marine Salvage Airbags are manufactured under strict ISO and CCS quality systems. Each unit undergoes hydrostatic, pressure, and endurance testing before shipment. This guarantees consistent performance under demanding marine environments and compliance with international maritime safety standards.
FAQ
1. What is the buoyancy range of Marine Salvage Airbags?
They are available in multiple capacities from 1 ton to over 80 tons. Airbags can be combined for larger lifting operations.
2. Can these airbags operate in strong currents or shallow water?
Yes. Their cylindrical design and balanced buoyancy allow stable lifting in both shallow and turbulent water environments.
3. How long do Marine Salvage Airbags last?
With proper maintenance and storage, they can be used for over 8-10 years, even in frequent saltwater operations.
4. What safety features are built into the airbags?
They include dual-chamber construction, automatic pressure relief valves, and surface pressure monitoring systems to prevent accidents.
5. Can Hongruntong Marine assist with on-site setup and operation?
Yes. Our technical team provides full project support, including planning, installation, and diver training for safe and effective use.
Product Images
Your message must be between 20-3,000 characters!
