Marine Airbag Protection Guide: From Damage Causes to Prevention
Marine airbags are widely used for vessel launching, docking, and heavy lifting. They are cost-effective and reliable, but just like any other marine equipment, they can be damaged if not handled properly.In this blog, we identify common causes of marine airbag damage and provide practical solutions to prevent them.
Mechanical Damage
- Cause
Airbags sliding on rough ground, sharp stones, steel scraps, or the sharp edges of a hull.
- Prevention
Always prepare a smooth, clean slipway. Remove sharp objects and use protective mats such as rubber sheets or conveyor belts.
Over-pressure
- Cause
Inflation pressure exceeding the rated working limit, or faulty pressure gauges.
- Prevention
Use calibrated gauges and compressors with safety valves. Train operators on safe inflation procedures.
Overloading
- Cause
The ship weight exceeds the combined bearing capacity of airbags, or too few airbags are used.
- Prevention
Calculate load distribution carefully, select the correct number and size of airbags, and follow manufacturer guidelines.
Improper Rolling or Positioning
- Cause
Uneven airbag spacing or misalignment with the vessel keel line, creating shear forces or or abnormal movement.
- Prevention
Place airbags at equal spacing and ensure correct alignment. Adjust positions promptly if airbags shift during launching.
Rubber Aging and Deterioration
- Cause
Long-term UV exposure, seawater corrosion, oil contamination, and natural rubber aging.
- Prevention
Store airbags in a cool, dry, shaded area. Ensure storage areas are free from chemicals and oil. Apply protective coatings and replace aging units in time.
Improper Rolling or Positioning
- Cause
Poor bonding of rubber layers or weak seams. Though rare, this can happen with low-quality products.
- Prevention
Request inspection certificates, and perform pre-use checks.
- Conclusion
With correct planning, careful operation, and routine inspection, marine airbags can remain safe, reliable, and long-lasting equipment for your marine operations. By understanding these common damage causes and implementing the recommended prevention strategies, you can significantly extend the lifespan of your marine airbags while ensuring operational safety.