1. What Is the Airbag Ship Upgrading Method?
The airbag ship upgrading method is a smart and flexible way to move a ship from the water onto land for repairs, inspections, or modifications. It relies on large marine rubber airbags to lift and roll the vessel safely onto shore. Unlike traditional methods that require fixed docks or rails, this process is mobile, reusable, and cost-effective.
2. Why Use This Method?
Traditional ship upgrading methods often need massive infrastructure and high costs. In contrast, marine airbag technology offers a more efficient and practical solution. For example, a 700-ton barge over 50 meters long was successfully pulled ashore using marine airbags, saving both time and money.
Moreover, this method doesn’t require permanent facilities. It’s especially useful for temporary shipyards, tight spaces, or emergency repairs.
3. What Preparations Are Needed?
Before starting, the site must be well prepared to ensure a smooth operation:
- First of all, remove any obstacles from the ground—rails, debris, and sharp objects that might damage the marine airbags.
- Next, level the surface and cover uneven areas with sandbags.
- In addition, make sure all tools and equipment are in place, including winches, anchors, air compressors, and cables.
Therefore, good preparation directly impacts the success and safety of the whole process.
4. How Does the Process Work?
The operation usually follows these clear and simple steps:
4.1: Preparation
- Clean and level the ship launching airbag path.
- Weld towing eyes to the vessel.
- Place the marine airbags and hold them down with sandbags.
4.2: Position the Vessel
- Wait for high tide to bring the barge close to the slope.
- Use four anchors to fix the position.
- Let the vessel settle smoothly onto the ship launching airbags.
4.3: Lifting and Pulling
- Inflate the marine airbags to raise the vessel.
- Begin pulling with a winch.
- As the vessel moves, adjust airbags by feeding new ones in front and shifting those in the middle.
4.4: Final Steps
- After reaching the target position, support the vessel with blocks.
- Deflate and remove the airbags.
- Finally, clean the area and inspect all equipment for future use.
5. Is It Safe?
Yes, absolutely. The marine airbag method is proven to be safe when operated correctly:
- Firstly, ship launching airbags work well below their rated pressure, leaving room for safety.
- Secondly, winches and cables are designed with high pulling capacity, often with a safety margin over 2 times the required force.
- Moreover, anchors are strong enough to hold the vessel, even in extreme conditions.
- Most importantly, every step is guided by experienced crew members under a clear command system.
6. Equipment List
Shipyard (Client) Provides:
- Forklift, crane, workboat
- Anchors, towing parts, electricity, and an air compressor
- Sandbags for support and safety
Contractor Provides:
- Heavy-duty marine airbags (Φ1.8m × 10m)
- High-pressure air hoses
- 20T and 10T winches
- Pulleys, shackles, steel cables
- Skilled workers and tools
Conclusion
In summary, the airbag ship upgrading method is a modern, safe, and flexible way to move ships from water to land. Unlike fixed dry docks, this method reduces setup time and project cost, while keeping operations safe and efficient.
If you’re planning a ship upgrading project, or simply want to explore better ways to handle vessel repairs, reach out to the Sunhelm team. We’re ready to support you with experience, equipment, and reliable solutions.