Rubber Airbag size range: Diameter is 0.6-2.8m, Length is 5-24m, layers usually from 3-10 layers.
Marine salvage airbag is another application of ship launching airbags. Marine Salvage Airbags is the toughest air lifting bags. It can be used as salvage pontoon for the supporting docks, and other floating structures. Also can be used to salvage the shipwreck, rescue the floating bridge and dock construction.
Performance Calculation Principle of Airbags
The bearing capacity of marine rubber air bags was calculated based on the working pressure, contact area. Herein, working pressure was got upon the burst pressure and safety working factor.
Because of the flexibility of rubebr airbag the contact area will be affected by some terms which include the carried ship condition, the different position from gravity center during the process of ship launching and pulling. So the bearing capacity of air bags will vary as well as the contact area.
Ship Rubber Airbags Advantages:
1.Different size airbag stock available, quick delivery.
2.Provide repair kit and on site instruction.
3.Long time service life can be reused many times.
4.Wear resistance and anti aging.
5.Good raw material and cord fabric.
6.Harmless to the environment.Time & money saving.
7.Need no more than air compressors, winches and ropes.
8.Using marine are much cheaper and portable than other methods.
Main Application of Rubber Airbags:
Our Rubber Airbags Application Worldwide:
Airbags are used to transport a reinforced concrete caisson weight up to 2600 tons at site. we use 8 layers airbags to ensure the safety. When heavy duty moving, long distance moving is the best check of airbag wear-resisting.
The Navy needs to salvage submarine weight 3000 tons. Using first balance then floating methods, salvage it successfully.
How to protect Rubber Airbags:
Airbag Usage Notes:
·Overpressure Control:
Strictly control the operating pressure, overpressure is forbidden.
·The Landing Slipway Requirements:
The landing ground should be ground or cement concrete, according to the tonnage of different ships.
·Avoid Sharp Objects:
Make sure no objects on the slipway and make sure the slipway is smooth and clean during operation, in case of airbag damage. ·Avoid Distortion And Overweight:
Avoid distortion in the length direction during rolling and avoid overweight load after gas charging.
Primary Marine & Civil Applications
Ship Launching & Drydocking Upgrades for barges, tugboats, cargo ships, and specialized workboats.
Heavy-Duty Land Logistics: Moving massive structures, bridge caissons, and industrial modules over ground surfaces.
Marine Salvage & Refloating: Providing external buoyancy and lifting power for stranded vessels or sunken docks.
Frequently Asked Questions (FAQ)
Q1: How do I choose the correct number of ply layers for a ship launching operation?
A: The required ply rating (typically 5 to 10 layers) is determined by the lightship weight of the vessel and the launch angle. Higher ply ratings support higher internal inflation pressures and deliver greater load capacity per meter.
Q2: What is the main difference between Effective Length (EL) and Total Length (TL)?
A: Effective Length (EL) is the length of the cylindrical body that provides the actual contact surface and load-bearing lifting power. Total Length (TL) includes the two conical end caps and metal terminal fixtures.
Q3: Can these marine rubber balloons be repaired if punctured by sharp debris?
A: Yes. Minor punctures or cuts to the outer rubber layer can be fully repaired using hot vulcanization patch methods, provided the internal synthetic-tire-cord matrix layers have not suffered catastrophic tearing.
Q4: Do your ship launching airbags comply with international maritime standards?
A: Yes. All Florescence rubber airbags are designed, manufactured, and pressure-tested in strict compliance with ISO 14409:2011 standards. Every production batch supports full material traceability (MTC) and third-party verification by SGS, BV, CCS, or LR.
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