Hongruntong Marine LLC.
| Payment Terms | L/C,T/T,D/A,D/P,Western Union,MoneyGram |
| Supply Ability | 25870 Pcs Per Month |
| Delivery Time | 5-8 Work Days |
| Packaging Details | Wooden Pallets, Wooden Box |
| Name | Underwater Lifting Bags |
| Feature | Durable Construction |
| Material | Superior PVC Coating Fabric |
| Lifting Capacity | 100kg to 60 tons |
| Type | Cylindrical, Parachute, Pillow |
| Layers | 1-6Ply, or As Request |
| Thickness | 0.4mm-2.5mm, or As Request |
| Reinforcement | Nylon Fabric |
| Valve | Inflation and Pressure release |
| Color | Black, Yellow, Orange, or As Request |
| Usage | Underwater air lifting, Salvage, Large buoyancy |
| Standard | IMCA-D-016 |
| Certificate | BV, ABS, DNV, LR, SGS, CCS |
| OEM | Warmly Welcomed |
| Warranty | 36 Months |
| MOQ | 1 |
| Application | Salvage operations, Underwater construction |
| Brand Name | Hongruntong Marine |
| Model Number | HM-UALB8 |
| Certification | BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China |
View Detail Information
Explore similar products
5t Underwater Air Lift Bags Exceptional Buoyancy And Stability Customizable
15t Salvage Bags Reinforced Seams Long Service Life Easy To Repair
50t Underwater Balloon Bags Uv Resistant Fabric Puncture Resistant Abrasion
20t Buoyancy Bags Easy To Deploy Foldable For Storage Quick Inflation
Product Specification
| Payment Terms | L/C,T/T,D/A,D/P,Western Union,MoneyGram | Supply Ability | 25870 Pcs Per Month |
| Delivery Time | 5-8 Work Days | Packaging Details | Wooden Pallets, Wooden Box |
| Name | Underwater Lifting Bags | Feature | Durable Construction |
| Material | Superior PVC Coating Fabric | Lifting Capacity | 100kg to 60 tons |
| Type | Cylindrical, Parachute, Pillow | Layers | 1-6Ply, or As Request |
| Thickness | 0.4mm-2.5mm, or As Request | Reinforcement | Nylon Fabric |
| Valve | Inflation and Pressure release | Color | Black, Yellow, Orange, or As Request |
| Usage | Underwater air lifting, Salvage, Large buoyancy | Standard | IMCA-D-016 |
| Certificate | BV, ABS, DNV, LR, SGS, CCS | OEM | Warmly Welcomed |
| Warranty | 36 Months | MOQ | 1 |
| Application | Salvage operations, Underwater construction | Brand Name | Hongruntong Marine |
| Model Number | HM-UALB8 | Certification | BV, ABS, DNV, LR, SGS, CCS, RMRS |
| Place of Origin | China |
The cylindrical Underwater Air Lift Bag is a specialized buoyancy solution engineered for offshore construction, subsea installation, and heavy-duty marine lifting operations. Manufactured using high-tenacity synthetic polyester fabric reinforced with multiple layers of abrasion-resistant elastomer coating, ensuring exceptional durability in aggressive marine environments.
The material structure provides superior resistance to saltwater corrosion, ultraviolet radiation, hydrostatic pressure, and temperature fluctuations ranging from -30°C to +70°C. The cylindrical design delivers uniform buoyancy distribution and improved vertical lift efficiency, minimizing lateral movement during operation.
In a large-scale offshore pipeline installation project in the Persian Gulf, Hongruntong cylindrical underwater air lift bags were deployed along multiple sections of the pipeline to provide controlled buoyancy. By carefully adjusting internal air pressure, the pipeline was gradually lifted, aligned, and stabilized during installation.
This method minimized seabed friction and prevented structural stress on the pipeline. The use of air lift bags reduced dependence on heavy-lift vessels and shortened the installation timeline by approximately 38%, while significantly decreasing diver workload and improving operational safety.
| Product Name | Underwater Air Lift Bags |
| Raw Material | Superior PVC Coating Fabric |
| Type | Cylindrical |
| Size | 500kg, 1000kg, 5000kg, 10000kg, etc |
| Thickness | 0.4mm-2.5mm, or as requested |
| Color | Yellow, Blue, Black, etc |
| Density | 0.33-0.9g/cm³ |
| Safety Factor | 7:1 |
| Accessories | Valve, Inflatable Tube, Repair Material |
| OEM | Welcome |
| Warranty | 3 Years |
| 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-C01 | 200 | 441 | 500 | 1,000 | 5 |
| HM-C02 | 500 | 1,103 | 800 | 1,000 | 8 |
| HM-C03 | 1,000 | 2,205 | 1,000 | 1,500 | 11 |
| HM-C04 | 2,000 | 4,410 | 1,300 | 1,500 | 20 |
| HM-C05 | 4,000 | 8,820 | 1,600 | 2,000 | 50 |
| HM-C06 | 6,000 | 13,230 | 2,000 | 2,000 | 66 |
| HM-C07 | 8,000 | 17,640 | 2,000 | 2,600 | 75 |
| HM-C08 | 10,000 | 22,050 | 2,400 | 2,400 | 80 |
| HM-C09 | 15,000 | 33,075 | 2,600 | 3,000 | 110 |
| HM-C10 | 20,000 | 44,100 | 3,000 | 3,000 | 130 |
| HM-C11 | 30,000 | 66,150 | 3,000 | 4,500 | 170 |
| HM-C12 | 50,000 | 110,250 | 4,000 | 4,000 | 220 |
| HM-C13 | 70,000 | 154,350 | 4,000 | 5,700 | 310 |
| HM-C14 | 100,000 | 220,500 | 4,000 | 8,000 | 450 |
| HM-C15 | 150,000 | 330,750 | 5,000 | 8,000 | 660 |
| HM-C16 | 200,000 | 441,000 | 5,000 | 10,000 | 900 |
Note: Other sizes can be customized according to requirements.
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...
Get in touch with us
Leave a Message, we will call you back quickly!