Lift Bags Heavy Load Capacity Corrosion Resistant Compact Storage 

Boat Air Bags are specialized inflatable marine lifting devices engineered for underwater salvage, refloating of sunken or partially submerged vessels, heavy subsea object relocation, and controlled buoyancy operations. Constructed with high-strength synthetic tire cord fabrics encapsulated in abrasion-resistant marine-grade rubber, these airbags provide reliable lifting capacity, precise buoyancy control, and structural resilience under submersion conditions.

These airbags are engineered to resist hydrostatic pressure, repeated inflation cycles, abrasion from underwater structures, and corrosive effects of seawater. Their multi-layer reinforcement ensures uniform stress distribution and minimizes localized strain during lifting operations.

A marine salvage contractor in the North Sea successfully refloated a partially submerged 2,800-ton cargo vessel using Hongruntong Marine's Boat Air Bags. The operation involved detailed buoyancy calculations, strategic airbag placement, and controlled inflation sequencing to ensure even lifting forces and stability.

The airbags' elastic structure adapted to hull contours and seabed irregularities, enabling smooth, predictable lifting without hull deformation. Following successful recovery, the airbags were reused for additional subsea equipment repositioning, demonstrating their durability and operational versatility.

• High Precision Buoyancy Control: Adjustable and predictable lifting force enables controlled refloating with minimal risk of structural stress
• Reinforced Structural Integrity: Multi-layer high-strength tire cord fabrics bonded with marine-grade rubber provide exceptional resistance to hydrostatic pressure and tensile stress
• Marine Grade Material Durability: Specialized rubber compounds resist seawater corrosion, abrasion, microbial attack, and UV exposure
• Flexible Deployment and Reusability: Rapid deployment, compact transport, and repeated use across multiple salvage projects

• Sunken Vessel Recovery: Controlled inflation provides gradual lifting while minimizing hull stress in challenging seabed conditions
• Heavy Subsea Equipment Relocation: Precise handling of large underwater objects without cranes or barges
• Emergency Underwater Lifting: Rapid response for stabilizing vessels, spill response operations, and temporary infrastructure repairs

• Specialized Expertise: Engineering team provides precise buoyancy calculations and operational guidance for complex subsea conditions
• Advanced Manufacturing: Rigorous pressure testing, inspection, and durability verification ensure consistent performance
• Custom Engineering: Tailored airbag design, attachment planning, and inflation sequencing for unique project challenges
• Comprehensive Support: Operational guidance, maintenance recommendations, and on-site technical support