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.
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.
| 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 |
|---|---|---|---|---|
| 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.
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.
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.
Available in diameters from Φ0.8m to Φ3.0m, lengths up to 12m, enabling customized arrangements for different ship sizes and water depths.
The airbags fold for easy transport, making them ideal for emergency response teams. Rapid deployment with portable pumps reduces downtime during critical salvage missions.
Safely usable from 50m to 100m depending on model.
PVC-coated airbags last 5-7 years with proper maintenance.
Yes, after inspection and cleaning.
Calculate based on vessel weight, water depth, and operational needs.
Yes, technical staff can provide on-site installation and inflation guidance.
