10t Underwater Air Lift Bags Strong Buoyancy Reinforced Seams Easy Operation

10t Underwater Air Lift Bags Strong Buoyancy Reinforced Seams Easy Operation

Description

Hongruntong Marine’s Underwater Air Lift Bags are precision-engineered buoyancy devices designed for safe and efficient lifting, refloating, and underwater transportation of heavy marine structures. Constructed from high-tensile, reinforced PVC-coated polyester fabric, these lift bags deliver superior strength, flexibility, and abrasion resistance in harsh marine environments.

Each lift bag is equipped with over-pressure valves, stainless steel fittings, and multi-point lifting straps to ensure balanced buoyancy distribution. The design supports both open-bottom and enclosed types, suitable for lifting sunken vessels, underwater structures, and subsea pipelines. The buoyancy range covers 1 ton to 50 tons, customizable to meet specific salvage or diving project needs.

Case Study — Vessel Refloating in Singapore Harbor

In 2024, Hongruntong Marine collaborated with a Singapore-based salvage contractor to refloat a 22-meter fishing vessel that had sunk in shallow waters near Tuas Port. The operation used eight 15-ton Underwater Air Lift Bags arranged symmetrically along the hull.

Divers attached the lift bags to pre-installed lifting points, and compressed air was carefully introduced in stages to maintain balance and prevent sudden buoyant shifts. Within four hours, the vessel achieved neutral buoyancy and was safely towed to the dockyard.

Despite rough current conditions, Hongruntong’s reinforced seams and precision pressure-control valves prevented leakage or instability. The client highlighted the quick setup, stability, and reusability of the equipment, which saved over 30% operational time compared to conventional lift systems.

Specifications

Features

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 Marine has built a reputation for excellence in delivering a wide range of services. Our expertise encompasses ship agency, ship management, crewing, chartering, and logistics solutions. We work closely with ship owners, operators, and charterers to ensure smooth and seamless operations.

At Hongruntong Marine, we are committed to providing exceptional service at every stage. Our team of highly skilled professionals is dedicated to delivering personalized solutions tailored to meet the unique requirements of each client. We understand the dynamic nature of the maritime industry and continuously adapt to the latest industry trends and regulations.

Safety is our top priority. We adhere to strict safety standards and procedures to ensure the well-being of our crew, vessels, and cargo. Our commitment to safety is evident in our track record of incident-free operations and our compliance with international maritime regulations.

As a customer-centric company, we prioritize building strong and long-lasting relationships with our clients. We believe in open communication, transparency, and integrity. Our aim is to exceed our clients' expectations and to be their trusted partner in the maritime industry.

Hongruntong Marine's success is driven by our unwavering dedication to service excellence, professionalism, and innovation. We are continuously investing in our people, technology, and infrastructure to maintain our position as a leader in the industry.

When you choose Hongruntong Marine, you can expect reliable, efficient, and cost-effective solutions that meet your specific needs. We look forward to serving you and contributing to the success of your maritime operations.