High Load Capacity for Deep Water Operations

Pillow Underwater Lifting Bags are engineered for extreme lifting tasks, supporting sunken vessels and heavy subsea modules. Multi-layer synthetic reinforcement ensures high tensile strength and hydrostatic pressure resistance, allowing safe operations even at significant depths.

Precision Buoyancy Control

Staged inflation allows operators to gradually increase buoyancy, enabling controlled lifting and positioning of submerged assets. This reduces stress on hulls or structures, minimizes tilting, and enhances diver safety during salvage operations.

Reinforced Material Durability

The airbags’ outer rubber layer resists seawater corrosion, microbial attack, UV exposure, and abrasion. High puncture and tear resistance protect against contact with rough hulls, seabed debris, and offshore structures, ensuring long-term operational reliability.

Flexible Deployment and Reusability

Designed for compact transport and rapid underwater deployment, Pillow Underwater Lifting Bags can be reused across multiple projects. Their adaptability allows applications in vessel recovery, offshore module handling, and emergency buoyancy tasks, improving operational efficiency and reducing costs.

Applications

Sunken Vessel Recovery

Used to refloat grounded or sunken vessels in deep-water scenarios, providing controlled staged lifting while maintaining hull integrity and diver safety.

Heavy Subsea Module Relocation

Supports underwater repositioning of large equipment, offshore platform components, or subsea infrastructure, enabling precise placement and stabilization.

Emergency Buoyancy Support

Provides rapid deployment for temporary flotation or stabilization of submerged assets in offshore and deep-water environments, enhancing operational safety and response efficiency.

Why Choose Hongruntong Marine

Expertise in Deep Water Lifting Technology

Hongruntong Marine specializes in designing inflatable lifting solutions for deep-water and heavy-duty applications. Our engineers provide precise load calculations, buoyancy planning, and operational guidance to ensure safety and reliability.

Advanced Multi Layer Manufacturing

Each airbag is produced using reinforced synthetic fabrics and marine-grade rubber, undergoing strict pressure testing and quality inspection. The multi-layer design guarantees durability, high-pressure resistance, and operational safety under extreme conditions.

Custom Design for Large Scale Salvage Projects

For each project, Hongruntong Marine offers tailored designs, including airbag dimensions, reinforcement configurations, and staged inflation strategies to optimize lifting efficiency, stability, and safety.

Comprehensive Technical Support

Our services include deployment guidance, maintenance recommendations, inspection protocols, and troubleshooting assistance, ensuring safe, repeatable, and long-term underwater lifting operations.

FAQ

1. What is the maximum lifting capacity of Pillow Underwater Lifting Bags?
Capacity depends on size, volume, inflation pressure, and deployment configuration. Custom engineering ensures suitability for specific deep-water salvage operations.

2. Can these airbags be reused for multiple heavy-duty operations?
Yes. Proper cleaning, inspection, and storage maintain durability and performance across multiple deep-water lifting projects.

3. Are they suitable for operations at depths beyond 20 meters?
Yes. Reinforced multi-layer construction provides hydrostatic pressure resistance, making them suitable for deep-water lifting tasks.

4. How are airbags installed under a sunken vessel?
Divers or remotely operated vehicles place airbags at critical hull points. Proper positioning ensures balanced lifting and minimizes structural stress.

5. Does Hongruntong Marine provide operational guidance for deep-water projects?
Yes. We offer engineering consultation, buoyancy calculations, staged inflation guidance, and operational protocols for safe and efficient underwater lifting.