Hongruntong Marine LLC.
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, MoneyGram |
| Supply Ability | 2390 Pcs Per Month |
| Delivery Time | 5-7 Work Days |
| Packaging Details | Wooden Pallets, Wooden Box |
| Product Name | Boat Air Bags |
| Material | PVC Coating Fabric |
| Lifting Capacity | 200kg to 50 tons |
| Feature | Durable Construction, Easy Filling and Emptying |
| Reinforcement | Nylon Fabric |
| Layers | 1-6Ply, or as Request |
| Application | Structural Load Testing, Proof Load Testing |
| Thickness | 0.4mm-2.5mm, or as Request |
| Color | Black, Yellow, Orange, or as Request |
| Brand Name | Hongruntong Marine |
| Model Number | HM-BAB58 |
| Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, MoneyGram | Supply Ability | 2390 Pcs Per Month |
| Delivery Time | 5-7 Work Days | Packaging Details | Wooden Pallets, Wooden Box |
| Product Name | Boat Air Bags | Material | PVC Coating Fabric |
| Lifting Capacity | 200kg to 50 tons | Feature | Durable Construction, Easy Filling and Emptying |
| Reinforcement | Nylon Fabric | Layers | 1-6Ply, or as Request |
| Application | Structural Load Testing, Proof Load Testing | Thickness | 0.4mm-2.5mm, or as Request |
| Color | Black, Yellow, Orange, or as Request | Brand Name | Hongruntong Marine |
| Model Number | HM-BAB58 | Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China | ||
| High Light | heavy load lift bags ，corrosion resistant boat air bags ，compact storage lift bags | ||
Boat Air Bags are specialized inflatable marine lifting devices engineered for underwater salvage, refloating of sunken or partially submerged vessels, heavy subsea object relocation, and controlled buoyancy operations. Constructed with high-strength synthetic tire cord fabrics encapsulated in abrasion-resistant marine-grade rubber, these airbags provide reliable lifting capacity, precise buoyancy control, and structural resilience under submersion conditions.
These airbags are engineered to resist hydrostatic pressure, repeated inflation cycles, abrasion from underwater structures, and corrosive effects of seawater. Their multi-layer reinforcement ensures uniform stress distribution and minimizes localized strain during lifting operations.
A marine salvage contractor in the North Sea successfully refloated a partially submerged 2,800-ton cargo vessel using Hongruntong Marine's Boat Air Bags. The operation involved detailed buoyancy calculations, strategic airbag placement, and controlled inflation sequencing to ensure even lifting forces and stability.
The airbags' elastic structure adapted to hull contours and seabed irregularities, enabling smooth, predictable lifting without hull deformation. Following successful recovery, the airbags were reused for additional subsea equipment repositioning, demonstrating their durability and operational versatility.
| Product Name | Boat Air Bags |
|---|---|
| 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, ±0.2mm on thickness, ±0 to +3mm on width, ±0 to +3mm on length |
| Model | Buoyancy (kg) | Buoyancy (lbs) | Diameter (mm) | Length (mm) | Approx. Weight (kg) |
|---|---|---|---|---|---|
| HM-ULB01 | 200 | 441 | 500 | 1,000 | 5 |
| HM-ULB02 | 500 | 1,103 | 800 | 1,000 | 8 |
| HM-ULB03 | 1,000 | 2,205 | 1,000 | 1,500 | 11 |
| HM-ULB04 | 2,000 | 4,410 | 1,300 | 1,500 | 20 |
| HM-ULB05 | 4,000 | 8,820 | 1,600 | 2,000 | 50 |
| HM-ULB06 | 6,000 | 13,230 | 2,000 | 2,000 | 66 |
| HM-ULB07 | 8,000 | 17,640 | 2,000 | 2,600 | 75 |
| HM-ULB08 | 10,000 | 22,050 | 2,400 | 2,400 | 80 |
| HM-ULB09 | 15,000 | 33,075 | 2,600 | 3,000 | 110 |
| HM-ULB10 | 20,000 | 44,100 | 3,000 | 3,000 | 130 |
| HM-ULB11 | 30,000 | 66,150 | 3,000 | 4,500 | 170 |
| HM-ULB12 | 50,000 | 110,250 | 4,000 | 4,000 | 220 |
| HM-ULB13 | 70,000 | 154,350 | 4,000 | 5,700 | 310 |
| HM-ULB14 | 100,000 | 220,500 | 4,000 | 8,000 | 450 |
| HM-ULB15 | 150,000 | 330,750 | 5,000 | 8,000 | 660 |
| HM-ULB16 | 200,000 | 441,000 | 5,000 | 10,000 | 900 |
Company Details
Business Type:
Manufacturer
Year Established:
1990
Total Annual:
5,256,780-5,593210
Employee Number:
220~360
Ecer Certification：
Verified Supplier
Hongruntong Marine is a leading marine company specializing in providing comprehensive services in the maritime industry. With a strong emphasis on quality, safety, and efficiency, we strive to meet the evolving needs of our clients. Established in 1990, Hongruntong Ma... Hongruntong Marine is a leading marine company specializing in providing comprehensive services in the maritime industry. With a strong emphasis on quality, safety, and efficiency, we strive to meet the evolving needs of our clients. Established in 1990, Hongruntong Ma...
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