4-12 Layers Marine Rubber Airbags Customized Size For Ship Launching / Ship Landing
Price:
USD $800 ~ $6900
MOQ:
1pc
Delivery Time:
2~3 weeks
Brand:
DOOWIN MARINE
Product Description
4-12 Layers Marine Rubber Ship Launching Airbags With Inflatable Design
Durable rubber marine airbags designed for boat lifting, launching, and salvage operations. These specialized marine rubber airbags, also known as roller bags or inflatable marine airbags, provide an innovative solution for launching marine vessels, ship landing, and haul-outs.
Ship launching using marine airbags represents a significant technological advancement over traditional methods like end-on launching or side ship launching. This flexible technology eliminates the need for fixed launching tracks, offering shipyards worldwide substantial benefits in time savings, cost efficiency, flexibility, and safety.
Our engineering team continuously innovates in design, material usage, and manufacturing technologies to ensure optimal flexibility, safety, and reliability. Our ship-launching rubber airbags have successfully launched various vessels including cargo ships, barges, chemical tankers, tugboats, and floating docks, with the largest vessel launched reaching 100,000DWT.
All Doowin Marine ship launching airbags are manufactured and tested to fully comply with international standards ISO 14409:2011 (Ships and marine technology -- Ship launching airbags) and ISO 17682:2013 (Methodology for ship launching utilizing air bags).
Product Specifications
| Specification | Details |
|---|---|
| Place of Origin | Shandong, China |
| Product Name | Marine salvage rubber airbag |
| Brand Name | DOOWIN |
| Diameter | 0.5~3m |
| Length | 5~30m |
| Production Technology | Holistic wrapping technology |
| Advantages | High lifting capacity, long lifespan |
| 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 |
| Others | Any size available upon request |
Ship Launching Airbags Material
Our rubber airbags feature a robust construction 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.
Synthetic-tire-cord Layer
The synthetic-tire-cord layer serves as the primary reinforcement, 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. We use 1400 dtex/2 or 1400 dtex/3 type synthetic-tire-cord fabric with over 95 cords per 100mm width and breaking strength exceeding 310N per cord.
1400 dtex/2 - 215 N/ per cord
1400 dtex/3 - 313 N/ per cord
Inner and Outer Rubber
Both outer and inner rubber layers undergo rigorous testing to meet international standards. The outer rubber layer protects cord layers from abrasion and external forces, featuring compounds with excellent tensile and tear strength to withstand harsh weather conditions and heavy usage.
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 |
Ship Launching Airbags Performance
| 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 | |
| QG6 | 0.8 | 56 | 245 | 215 | 740 |
| 1.0 | 45 | 200 | 219 | 600 | |
| 1.2 | 32 | 165 | 217 | 490 | |
| 1.5 | 25 | 130 | 218 | 390 | |
| 1.8 | 20 | 110 | 220 | 330 | |
| 2.0 | 18 | 100 | 220 | 300 | |
| QG7 | 0.8 | 64 | 270 | 237 | 810 |
| 1.0 | 50 | 220 | 242 | 660 | |
| 1.2 | 38 | 190 | 251 | 570 | |
| 1.5 | 29 | 150 | 247 | 450 | |
| 1.8 | 25 | 130 | 257 | 390 | |
| 2.0 | 23 | 120 | 264 | 360 | |
| QG8 | 0.8 | 70 | 300 | 264 | 900 |
| 1.0 | 54 | 240 | 264 | 720 | |
| 1.2 | 45 | 210 | 277 | 630 | |
| 1.5 | 32 | 170 | 280 | 510 | |
| 1.8 | 29 | 150 | 297 | 450 | |
| 2.0 | 26 | 140 | 308 | 420 |
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Get in Touch
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