Diameter 0.8m-3m Ship Launching Airbags For Shipping Containers
Price:
USD$1000 - $ 13800
MOQ:
1pc
Delivery Time:
2~3 weeks
Brand:
DOOWIN MARINE
Product Description
DOOWIN Ship Launching Using Airbags Heavy Duty Lifting Marine Rubber Airbag
Heavy lifting air bags, known as marine rubber airbags or ship launching balloons, are made of heavy-duty synthetic-tire-cord layers with inner and outer rubber layers in a long cylindrical balloon shape.
The heavy lifting airbag is updated based on the ship launching airbags, making them more suitable for heavy lifting and moving work. These airbags have a different structure from ship launching airbags and can roll steadily when taking the load, unlike inferior products which are prone to twisting.
As one of the toughest pneumatic lifting airbags available, they can be used for heavy lifting and moving of huge structures, caissons, buildings, and more. Each heavy lifting airbag can reach a lifting capacity of over 1,000 tons.

Why Choose Marine Heavy Lifting Air Bags
Superior manufacturing and quality control processes from raw material selection through the highly skilled production process ensure reliable performance.


Classification of Heavy Lifting Airbags
Heavy lifting airbags are categorized by bearing capacity per meter in length, with layer count determining Safety Working Pressure. Custom types are available upon request.
- QP - Ordinary airbag with 3, 4 or 5 layers of cord fabric
- QG - High-bearing capacity with 6, 7, or 8 layers of cord fabric
- QS - Superhigh-bearing capacity with 9, 10, or more layers of cord fabrics
Example: QG6/1.5*15
QG6: 6 layers cord fabric
1.5: diameter is 1.5m
15: length is 15m
QG6: 6 layers cord fabric
1.5: diameter is 1.5m
15: length is 15m
Performance Parameters of Heavy Lifting Airbags
| 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 |
Structure of Ship Launching Airbags
Our engineering team constantly improves the Structure of Typical Air Bags

Standard Ship Launching Airbag Components
- The end of the airbag body
- End flange (Q235 H.D.G)
- Sealing Washer
- Three-direction connector at the inflate end (Q235 H.D.G)
- 3/4′ Ball Valves at the inflate end (Brass)
- Hose connection at the inflate end (Q235)
- High-quality Pressure Gauge
- End plug at the tightness end (Q235 H.D.G)
Ship Launching Airbags Rubber Material Performance
| No. | Test Item | Value | Standard |
|---|---|---|---|
| 1 | Tensile Strength, Mpa | ≥18 | ISO 37 |
| 2 | Elongation at break, % | ≥400 | ISO 37 |
| 3 | Hardness, ° (Shore A) | 60±10 | ISO 7619-1 |
| 4 | Tear Strength, N/cm | ≥400 | ISO 34-1 |
| 5 | Compression set, % (70℃±1℃,22h) | ≤30 | ISO 815-1 |
| 6* | Holding of pull lengthening, % | ≥80 | ISO 188 |
| 7* | Holding of elongation at break, % | ≥80 | ISO 188 |
| 8* | Change of hardness, ° (Shore A) | ≤8 | ISO 7619-1 |
| 9 | Static ozone aging at 40℃ x 96h, extension 20% | No crack | ISO 1431-1 |

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
Location
Xiazhuang Industry Park, Chengyang, Qingdao, China
Contact Person
Xiang Sun