Salvage Floating Bags Flexible Anti Aging Corrosion Resistant Rubber
Description
Hongruntong Marine Salvage Airbags are cylindrical underwater lifting bags designed for efficient ship salvage, heavy lifting, and port operations. Constructed from PVC Coated Polyester Fabric, they offer exceptional strength, corrosion resistance, and durability, maintaining performance in saltwater and abrasive environments. Their multi-layer design ensures airtightness and reliable buoyancy, allowing precise vertical and tilt adjustments for vessels, sunken ships, or offshore structures.
Case Study
In a northern European port, a 2,500-ton chemical tanker partially sank due to hull breach after a collision. Traditional cranes were unable to reach the vessel safely because of shallow water and confined port space. The salvage team deployed four Φ2.0m × 8m PVC-coated polyester airbags under the submerged sections.
The airbags were carefully positioned along the hull and gradually inflated, lifting the vessel at a controlled rate. Using tide cycles and airbag adjustments, the tanker was refloated over 48 hours without structural damage. This successful operation demonstrated how Hongruntong Marine Salvage Airbags enable safe and efficient salvage even in tight port spaces.
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 | Buoyancy | Diameter | Length | Appr. Weight |
| Cylindrical | [kg] | [lbs] | [mm] | [mm] | [kg] |
| HM-MSA01 | 200 | 441 | 500 | 1,000 | 5 |
| HM-MSA02 | 500 | 1,103 | 800 | 1,000 | 8 |
| HM-MSA03 | 1,000 | 2,205 | 1,000 | 1,500 | 11 |
| HM-MSA04 | 2,000 | 4,410 | 1,300 | 1,500 | 20 |
| HM-MSA05 | 4,000 | 8,820 | 1,600 | 2,000 | 50 |
| HM-MSA06 | 6,000 | 13,230 | 2,000 | 2,000 | 66 |
| HM-MSA07 | 8,000 | 17,640 | 2,000 | 2,600 | 75 |
| HM-MSA08 | 10,000 | 22,050 | 2,400 | 2,400 | 80 |
| HM-MSA09 | 15,000 | 33,075 | 2,600 | 3,000 | 110 |
| HM-MSA10 | 20,000 | 44,100 | 3,000 | 3,000 | 130 |
| HM-MSA11 | 30,000 | 66,150 | 3,000 | 4,500 | 170 |
| HM-MSA12 | 50,000 | 110,250 | 4,000 | 4,000 | 220 |
| HM-MSA13 | 70,000 | 154,350 | 4,000 | 5,700 | 310 |
| HM-MSA14 | 100,000 | 220,500 | 4,000 | 8,000 | 450 |
| HM-MSA15 | 150,000 | 330,750 | 5,000 | 8,000 | 660 |
| HM-MSA16 | 200,000 | 441,000 | 5,000 | 10,000 | 900 |
| *Note: Other sizes can be customized according to the requirements. |
Features
Durable PVC Coated Material
Made with PVC Coated Polyester Fabric, the airbags resist abrasion, corrosion, and UV degradation. This ensures long-term performance even in harsh marine environments, reducing maintenance costs.
Precise Buoyancy Management
Inflation can be finely controlled to lift vessels or heavy loads smoothly. Integrated safety valves prevent over-inflation, ensuring stability and safety during salvage operations.
Wide Range of Sizes
Available in diameters from Φ0.8m to Φ3.0m, lengths up to 12m, enabling customized arrangements for different ship sizes and water depths.
Compact and Portable
The airbags fold for easy transport, making them ideal for emergency response teams. Rapid deployment with portable pumps reduces downtime during critical salvage missions.
Applications
Port Salvage
Refloating grounded or partially submerged vessels, even in shallow or confined port areas, safely and efficiently.
Offshore Structural Lifting
Lifting or relocating pipelines, floating docks, and offshore modules without relying on cranes.
Emergency Offshore Rescue
Stabilizing or partially raising distressed vessels in open water to prevent sinking or further damage.
Why Choose Hongruntong Marine
Extensive RD Experience
Over 15 years of experience in underwater salvage and offshore airbag solutions.
Rigorous Quality Assurance
All airbags undergo hydrostatic, abrasion, and airtightness tests before shipment.
Global Service Support
Technical support and on-site guidance available worldwide, 24/7.
Customizable Solutions
Tailored buoyancy, size, and accessory options for ports, vessels, and offshore operations.
FAQ
1. What water depths can the airbags operate in?
Safely usable from 50m to 100m depending on model.
2. How long is their lifespan?
PVC-coated airbags last 5–7 years with proper maintenance.
3. Can they be reused?
Yes, after inspection and cleaning.
4. How to select the right airbag size?
Calculate based on vessel weight, water depth, and operational needs.
5. Is operational training provided?
Yes, technical staff can provide on-site installation and inflation guidance.
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Salvage Floating Bags Flexible Anti Aging Corrosion Resistant Rubber Images
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