Marine Salvage Airbags are essential tools in modern marine engineering. Constructed with high-strength composite materials, they offer excellent corrosion resistance, wear resistance, and airtight sealing, enabling efficient lifting, rescue, and vessel maintenance operations in deep-sea and port environments. Marine Salvage Airbags generate buoyancy through inflation, raising submerged objects steadily to the surface. They are easy to operate, reliable, and can be selected in various sizes and capacities according to different depths and weight requirements.

In 2023, a 10-ton small cargo vessel sank during a storm at Hong Kong International Cargo Port. The port rescue team employed our Marine Salvage Airbags for the operation. First, an underwater remotely operated vehicle (ROV) assessed the vessel's position and condition to determine the required specifications and quantity of airbags. The airbags were strategically placed at critical structural points on the vessel, and high-pressure air was gradually introduced to inflate the airbags. This controlled lift allowed the vessel to rise slowly without secondary damage caused by uneven buoyancy.

During the entire operation, the Marine Salvage Airbags demonstrated exceptional pressure resistance and stability, even in areas with strong water currents, maintaining the vessel in a balanced position. After six hours of continuous work, the vessel was safely raised to the surface for towing and clearing. The success rate was 100%, with operational efficiency improving by approximately 40% compared to traditional crane operations, significantly reducing both rescue risk and costs.

This case highlights the outstanding performance of Marine Salvage Airbags in port vessel recovery, showcasing high load-bearing buoyancy, operational ease, and corrosion resistance, providing a reliable solution for port management and emergency rescue operations.

Note: Other sizes can be customized according to the requirements.

Marine Salvage Airbags are made from multi-layer polyester fiber and PVC composites, with an outer layer resistant to abrasion and scratches, and an inner layer ensuring water-tightness. They withstand high pressure in deep-sea environments and prolonged submersion. Even at maximum rated buoyancy, the structure maintains minimal deformation, ensuring stability during object lifting. The material also exhibits excellent chemical resistance, handling saltwater, oil, and other corrosive substances commonly found in marine environments.

Equipped with precision air valves and multiple inflation ports, Marine Salvage Airbags allow fine-tuned buoyancy adjustment. Operators can use single-point or multi-point inflation depending on the weight and shape of the submerged object, ensuring a smooth lift and reducing the risk of tilting or secondary damage. The modular design also enables multiple airbags to work in combination, providing sufficient buoyancy for objects ranging from 10 to 50 tons or more.

Marine Salvage Airbags are lightweight and compact, making them easy for divers to transport and deploy underwater. High-strength straps and attachment rings allow fast securing at critical points, minimizing diver time underwater. Even in strong currents or low-visibility conditions, installation and removal can be accomplished efficiently, improving operation safety and speed.

Multiple safety mechanisms are integrated into Marine Salvage Airbags, including pressure relief valves, dual-layer bladders, and pressure monitoring interfaces. Even in the event of partial damage or abnormal pressure, the airbags retain sufficient buoyancy to prevent accidental submersion. Surface monitoring devices provide real-time feedback on lift status, ensuring reliable underwater operations.

• Port Vessel Recovery: Ideal for rapid recovery of sunken vessels in ports, Marine Salvage Airbags are suitable for large container terminals, small cargo harbors, and tourism ports. Adjustable buoyancy enables precise lifting of vessels of varying tonnage, avoiding secondary damage and operational delays.
• Shipyard Underwater Maintenance and Installation: In shipyards or dry docks, Marine Salvage Airbags can be used for underwater repair, hull cleaning, and equipment installation. They are especially effective for partially submerged vessels or lifting underwater components of large ships, improving efficiency while reducing diver labor costs.
• Scientific and Deep Sea Engineering Operations: Marine Salvage Airbags are also applicable for marine research, underwater exploration, and deep-sea equipment recovery. Research bases near ports or offshore engineering vessels can safely retrieve experimental equipment, sediment samples, and deep-sea instruments due to the airbags' precise buoyancy control and high reliability.

• Extensive Industry Experience: Hongruntong Marine has over 15 years of experience in port and underwater marine operations, participating in hundreds of vessel recoveries, shipyard repairs, and ocean research projects worldwide.
• Professional R&D and Customization Capability: Our in-house R&D team designs customized Marine Salvage Airbags for different tonnage, depth, and operational environments.
• Global Project Support and Consultation: We provide technical consultation and on-site support for marine projects worldwide.
• Commitment to Safety and Quality: All Marine Salvage Airbags undergo rigorous testing, including pressure resistance, abrasion, and corrosion tests.

The lifting capacity varies by model, ranging from 1 ton to over 50 tons. Multiple airbags can be combined for heavier loads.

Yes, they are made from high-strength, corrosion-resistant materials suitable for saltwater and deep-sea applications.

Buoyancy is adjusted via multi-point inflation valves, allowing gradual and precise control to maintain stability.

Yes, the airbags include safety valves, dual-layer design, and surface monitoring options to ensure safe diver operations.

Absolutely. Hongruntong Marine offers custom sizes, materials, and buoyancy ratings to match the specific operational requirements of ports, shipyards, or research missions.