Marine Salvage Lift Bag Heavy Duty Design Corrosion Resistant Long Service Life
Product Overview
Hongruntong Marine Parachute Underwater Lift Bag is an advanced underwater lifting system designed for precise buoyancy control, marine recovery, offshore installation, and professional diving operations. This lift bag provides a practical alternative to traditional lifting equipment by using controlled buoyancy force to raise submerged objects safely and efficiently.
The parachute-style open-bottom structure allows automatic air release during ascent, ensuring stable lifting performance without excessive pressure accumulation. This unique design provides excellent control when recovering irregularly shaped objects, positioning subsea structures, or assisting underwater construction activities.
Case Study: Shipyard Recovery Operation
A ship repair company successfully used Hongruntong Marine Parachute Underwater Lift Bags to recover a 3.5-ton submerged component from an 8,000 DWT bulk cargo vessel. The operation was completed smoothly without causing damage to the vessel structure, reducing preparation time and equipment rental expenses compared to traditional crane-based solutions.
Technical Specifications
| Product Name |
Heavy Duty Inflatable Air 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 |
| Safety Factor |
7:1 |
| Warranty |
3 Years |
Model Specifications
| Model |
Lifting Capacity (kg) |
Lifting Capacity (lbs) |
Dimensions (mm) |
Weight (kg) |
| HM-P01 |
200 |
441 |
800 |
5 |
| HM-P02 |
500 |
1,103 |
1,000 |
8 |
| HM-P03 |
1,000 |
2,205 |
1,300 |
11 |
| HM-P04 |
2,000 |
4,410 |
1,600 |
20 |
| HM-P05 |
4,000 |
8,820 |
2,000 |
50 |
| HM-P06 |
6,000 |
13,230 |
2,300 |
66 |
| HM-P07 |
8,000 |
17,640 |
2,500 |
75 |
| HM-P08 |
10,000 |
22,050 |
2,700 |
80 |
| HM-P09 |
15,000 |
33,075 |
3,100 |
110 |
| HM-P10 |
20,000 |
44,100 |
3,400 |
130 |
| HM-P11 |
30,000 |
66,150 |
3,900 |
170 |
| HM-P12 |
50,000 |
110,250 |
4,600 |
220 |
| HM-P13 |
70,000 |
154,350 |
5,200 |
310 |
| HM-P14 |
100,000 |
220,500 |
5,800 |
450 |
| HM-P15 |
150,000 |
330,750 |
6,600 |
660 |
| HM-P16 |
200,000 |
441,000 |
7,300 |
900 |
*Note: Other sizes can be customized according to requirements.
Key Features
- High Buoyancy Efficiency: Parachute-style configuration maximizes lifting efficiency with excellent underwater stability
- Reinforced Fabric Technology: Industrial-grade coated fabric engineered for professional marine applications
- Reliable Safety Components: Equipped with secure connection systems and reinforced lifting points
- Easy Deployment: Lightweight design allows easy transportation and rapid deployment
- Reusable Performance: Durable materials allow repeated usage when properly maintained
Applications
- Offshore Platform Maintenance: Equipment recovery, subsea structure adjustment, and temporary buoyancy support
- Underwater Equipment Installation: Positioning pipelines, cables, foundations, and mechanical components
- Vessel Repair and Marine Workshops: Underwater component handling, propeller replacement, and anchor recovery
Why Choose Hongruntong Marine
- Strong manufacturing capability and extensive marine industry experience
- Advanced production technology and comprehensive quality assurance
- Customized engineering support for different project requirements
- Complete customer service and international supply experience
Frequently Asked Questions
What is the maximum lifting capacity of a Parachute Underwater Lift Bag?
Hongruntong Marine provides different models with various buoyancy capacities. The lifting capacity can be customized according to the weight of the underwater object, operating depth, and project requirements.
Can the lift bag be reused after underwater operations?
Yes. With proper cleaning, inspection, and storage procedures, the lift bag can be reused multiple times. The reinforced fabric and welded construction are designed to withstand repeated professional operations.
What accessories are available with the lift bag?
Optional accessories include inflation valves, overpressure relief valves, lifting harnesses, shackles, ropes, protective covers, and customized connection systems according to customer requirements.
Is the lift bag suitable for saltwater environments?
Yes. The PVC-coated fabric and corrosion-resistant components provide excellent resistance against seawater, UV radiation, and harsh offshore conditions.
How can customers select the correct lift bag size?
Selection depends on the weight of the load, required buoyancy, water depth, lifting method, and operational environment. Hongruntong Marine can provide professional recommendations based on detailed project information.