Hongruntong Marine LLC.
| Payment Terms | L/C, T/T, D/A, D/P, Western Union, MoneyGram |
| Supply Ability | 1880 Pcs Per Month |
| Delivery Time | 5-7 Work Days |
| Packaging Details | Wooden Pallets, Wooden Box |
| Product Name | Marine Floating Barrier |
| Material | TOP Grade PVC Coating Fabric |
| Reinforcement | Nylon Fabric |
| Lifting Capacity | 200Kg to 50 Tons |
| Type | Pillow |
| Feature | Durable and Reliable Construction |
| Layers | 1-6Ply, or As Request |
| Thickness | 0.4mm-2.5mm, or As Request |
| Valve | Inflation and Pressure Release |
| Color | Black, Yellow, Orange, or As Request |
| Packaging | Pallets, Wooden Box |
| Application | Salvage Operations, Underwater Construction |
| Brand Name | Hongruntong Marine |
| Model Number | HM-ULB79 |
| 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 | 1880 Pcs Per Month |
| Delivery Time | 5-7 Work Days | Packaging Details | Wooden Pallets, Wooden Box |
| Product Name | Marine Floating Barrier | Material | TOP Grade PVC Coating Fabric |
| Reinforcement | Nylon Fabric | Lifting Capacity | 200Kg to 50 Tons |
| Type | Pillow | Feature | Durable and Reliable Construction |
| Layers | 1-6Ply, or As Request | Thickness | 0.4mm-2.5mm, or As Request |
| Valve | Inflation and Pressure Release | Color | Black, Yellow, Orange, or As Request |
| Packaging | Pallets, Wooden Box | Application | Salvage Operations, Underwater Construction |
| Brand Name | Hongruntong Marine | Model Number | HM-ULB79 |
| Certification | ISO, BV, ABS, DNV, LR, SGS, CCS, RMRS | Place of Origin | China |
| High Light | compact underwater lift bag ，portable pillow air lift ，fast inflation lift bag | ||
| Attribute | Value |
|---|---|
| Product Name | Marine Floating Barrier |
| Material | TOP Grade PVC Coating Fabric |
| Reinforcement | Nylon Fabric |
| Lifting Capacity | 200kg to 50 tons |
| Type | Pillow |
| Feature | Durable and Reliable Construction |
| Layers | 1-6Ply, or As Request |
| Thickness | 0.4mm-2.5mm, or As Request |
| Valve | Inflation and Pressure Release |
| Color | Black, Yellow, Orange, or As Request |
| Packaging | Pallets, Wooden Box |
| Application | Salvage Operations, Underwater Construction |
In emergency underwater situations, such as rescuing trapped vehicles or submersibles, speed and precision are critical. Underwater Lift Bags are well-suited for these missions because they can be deployed rapidly, inflated with standard diving equipment, and controlled with high accuracy. They work without electricity or hydraulics, making them reliable even in challenging conditions.
The lightweight, foldable design allows them to be transported easily by rescue teams, while their high lift capacity ensures they can handle even the heaviest loads. Safety features such as overpressure valves, rugged lifting straps, and secure attachment points minimize the risk during urgent operations.
Case Study: During a deep-sea research mission, a small unmanned submersible became stuck at a depth of 30 meters after one of its thrusters jammed against a rocky outcrop. Recovery using the ship's winch system was impossible due to rough sea conditions. A dive rescue team equipped with high-capacity Underwater Lift Bags was dispatched. Divers descended to the site, secured lifting slings around the submersible's frame, and attached four large-capacity bags. The inflation process was carefully monitored to avoid sudden movement, and the submersible was gently freed from the rock. Once neutrally buoyant, it was towed a short distance to a sheltered area before being brought to the surface. The entire operation took less than two hours, saving valuable scientific equipment and preventing potential environmental hazards from fuel leakage. The mission reinforced the role of lift bags as a rapid-response tool in marine emergencies.
| Product Name | Underwater Lift Bags |
|---|---|
| Raw Material | TOP Grade PVC Coating Fabric |
| Type | Pillow |
| 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 |
| Accessories | Valve, Inflatable Tube, Repair Material |
| OEM | Welcome |
| Warranty | 3 Years |
| Tolerances | +/- 0.03 on densities +/- 0.2 mm on thickness +/- 0 to +3mm on width +/- 0 to +3mm on length |
| Model | Capacity (kg) | Capacity (lbs) | Length (mm) | Width (mm) |
|---|---|---|---|---|
| HM-ULB100 | 100 | 220 | 1,020 | 760 |
| HM-ULB250 | 250 | 550 | 1,320 | 820 |
| HM-ULB500 | 500 | 1,100 | 1,300 | 1,200 |
| HM-ULB1000 | 1,000 | 2,200 | 1,550 | 1,420 |
| HM-ULB2000 | 2,000 | 4,400 | 1,950 | 1,780 |
| HM-ULB3000 | 3,000 | 6,600 | 2,900 | 1,950 |
| HM-ULB5000 | 5,000 | 11,000 | 3,230 | 2,030 |
All bags feature automatic pressure relief valves, triple-stitched seams, and fail-safe attachment points rated at 5:1 safety factor.
With proper maintenance, our bags have a 10+ year service life, backed by a 7-year warranty against material defects.
Yes, we provide standardized ROV interfaces with optional real-time pressure/depth telemetry for remote operations.
All bags meet DNV 2.7-1, IMCA D022, ABS, and Lloyd's Register standards for offshore lifting equipment.
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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