Boat Underwater Lift Bags Flotation Bags Salvage Buoyancy for
Shipwreck Salvage
Description
Underwater lift bags are essential tools used for lifting,
supporting, and positioning submerged objects in marine and salvage
operations. Designed with high-strength materials, these bags
provide controlled buoyancy and lifting capabilities for various
underwater applications. Equipped with multiple attachment points
and reinforced seams, they ensure safety and reliability in lifting
heavy loads. Whether for commercial diving, shipwreck recovery, or
underwater construction, our lift bags are built to withstand
challenging marine environments, offering excellent durability and
performance.
Specifications
| Product Name | Underwater Lift Bags |
| Raw Material | Top Notch PVC Coating Fabric |
| Type | Parachute |
| 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 | Lifting Capacity | Dimensions | Appr. Weight |
| Parachute | [kg] | [lbs] | [mm] | [kg] |
| HM-ULB01 | 200 | 441 | 800 | 5 |
| HM-ULB02 | 500 | 1,103 | 1,000 | 8 |
| HM-ULB03 | 1,000 | 2,205 | 1,300 | 11 |
| HM-ULB04 | 2,000 | 4,410 | 1,600 | 20 |
| HM-ULB05 | 4,000 | 8,820 | 2,000 | 50 |
| HM-ULB06 | 6,000 | 13,230 | 2,300 | 66 |
| HM-ULB07 | 8,000 | 17,640 | 2,500 | 75 |
| HM-ULB08 | 10,000 | 22,050 | 2,700 | 80 |
| HM-ULB09 | 15,000 | 33,075 | 3,100 | 110 |
| HM-ULB10 | 20,000 | 44,100 | 3,400 | 130 |
| HM-ULB11 | 30,000 | 66,150 | 3,900 | 170 |
| HM-ULB12 | 50,000 | 110,250 | 4,600 | 220 |
| HM-ULB13 | 70,000 | 154,350 | 5,200 | 310 |
| HM-ULB14 | 100,000 | 220,500 | 5,800 | 450 |
| HM-ULB15 | 150,000 | 330,750 | 6,600 | 660 |
| HM-ULB16 | 200,000 | 441,000 | 7,300 | 900 |
| *Note: Other sizes can be customized according to the requirements. |
Features
No Metal Parts in Some Models
Certain designs avoid metal components, reducing weight and
improving corrosion resistance.
Tested to International Standards
Every batch is pressure-tested and quality-certified before
shipment for maximum reliability.
Available with Custom Branding
OEM/private labeling options allow for customized company branding
and specifications.
Cost Effective Alternative to Heavy Lifting Equipment
More affordable, flexible, and easier to use than cranes or
ROV-operated lifting systems.
Applications
● Shipwreck salvage
● Sunken vehicle recovery
● Offshore oil rig maintenance
● Subsea pipeline installation
Advantages
Reliable Performance in Emergency Response
Used in disaster relief, flood recovery, and emergency salvage
operations, proving their versatility.
Enhanced Load Distribution Technology
Our advanced designs minimize stress concentration points, ensuring
a longer service life.
Competitive Pricing Without Compromising Quality
We provide premium-quality lift bags at competitive prices,
offering the best value in the industry.
Strong Research Development Capabilities
Our continuous RD investment ensures that we stay at the forefront
of underwater lifting technology.
FAQ
1. What is an underwater lift bag?
An underwater lift bag is a device used underwater to lift objects
or equipment to the surface.
2. How does an underwater lift bag work?
An underwater lift bag works by filling with air, which creates
buoyancy and allows the bag to lift objects to the surface.
3. What are underwater lift bags made of?
Underwater lift bags are typically made of durable materials such
as PVC, nylon, or polyurethane.
4. How much weight can an underwater lift bag lift?
The lifting capacity of an underwater lift bag can vary depending
on its size and design, but they are available in a range of
capacities from a few kilograms to several tons.
