Durable Ship Launching Airbags Wearable Synthectic Rubber Marine Lift Bags
Ship launching airbags, also known as roller bags, launching air balloons, inflatable marine airbags, air lift bags, and salvage bags, are specialized marine rubber air bags used for launching marine vessels, ship landing or haul-outs. These durable airbags are also widely used in loading, floating, lifting and moving sunken ships, and salvaging stranded boats.
- No air leakage design for reliable performance
- Highly wearable construction for long service life
- Easy operation for efficient marine applications
- Customizable diameters from 0.8m to 2.5m
- Available in lengths from 5m to 30m
- Loading capacity from 10 to 40 ton/m
| Place of Origin | Shandong, China |
|---|---|
| Brand Name | DOOWIN |
| Diameter | 0.8~3m |
| Length | 5~30m |
| Production Technology | Holistic wrapping technology |
| Standard | ISO 14409 |
| Working Pressure | 7~500kPa |
| Life-span | 10 years |
| Material | Synthetic-tire-cord layer |
| Layers | 4-12 layers |
| Certificate | SGS, BV, CCS, ABS, LR, BV |
Our marine airbags are constructed with an outer rubber layer, multiple synthetic-tire-cord reinforcement layers, and an inner rubber layer vulcanized firmly together. Additional layers are applied at the end shoulders for enhanced durability.
The synthetic-tire-cord layer serves as the reinforcement layer, made of rubber-coated synthetic-tire-cord fabrics. Multiple layers are twined at ideal angles using our patented Holistic Wrapping Technology to evenly distribute stress and maintain internal pressure.
| Test Item | Value | Standard |
|---|---|---|
| Tensile Strength, Mpa | ≥18 | ISO 37 |
| Elongation at break, % | ≥400 | ISO 37 |
| Hardness, ° (Shore A) | 60±10 | ISO 7619-1 |
| Tear Strength, N/cm | ≥400 | ISO 34-1 |
| Compression set, % (70℃±1℃,22h) | ≤30 | ISO 815-1 |
| Static ozone aging at 40℃ x 96h, extension 20% | No crack | ISO 1431-1 |
| Type No. | Diameter (m) | Initial Internal Pressure for Test (kPa) | Rated Working Pressure (kPa) | Bearing Capacity at 70% compress deformation (KN/m) | Minimum Burst Pressure (kPa) |
|---|---|---|---|---|---|
| QP5 | 0.8 | 48 | 210 | 184 | 630 |
| 1.0 | 35 | 170 | 186 | 510 | |
| 1.2 | 28 | 140 | 185 | 420 | |
| 1.5 | 20 | 110 | 181 | 330 | |
| 1.8 | 16 | 90 | 178 | 270 | |
| 2.0 | 14 | 80 | 176 | 240 |
All DOOWIN Marine ship launching airbags are manufactured and tested fully compliant with ISO 14409:2011 Ships and marine technology - Ship launching airbags. Our products are certified by CCS, BV, ABS, LR and other major classification societies.
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