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QINGDAO DOOWIN MARINE ENGINEERING CO., LTD.
Professional Manufacturer of Marine Rubber Airbags, Yokohama Type Fenders and Offshore Foam Buoys
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Custom Ship Launching Airbags 7KPA-500KPA Holistic Wrapping Technology

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Custom Ship Launching Airbags 7KPA-500KPA Holistic Wrapping Technology

Brand Name : DOOWIN MARINE

Model Number : SL-1

Certification : BV,ABS, CCS, SGS

Place of Origin : China

MOQ : 1pc

Price : USD 200 ~ USD 5000

Payment Terms : L/C,T/T

Supply Ability : 10pcs/per week

Delivery Time : 2~3 weeks

Packaging Details : Pallet or Plywooden Box

Name : Ship Launching Airbags

OEM : Available

Feature : High strength, long lifespan

Length : 1m- 32m

Certificates : CCS BV ABS LR etc

Diameter : 0.5m ~ 3m, or customized diameter

Number Of Layers : 3-12layers, Customized

Payment Term : T/T, L/C

Design Using Life : 10 Years,6-10 Years

Layer : 4~12 layers

Effective Length : 1m~32m, or customized length

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High Performance Holistic Wrapping Technology Rubber Marine Airbags For Ship Launching
Product Description

Ship launching airbags are specialized marine rubber air bags designed for launching marine vessels, ship landing, or haul-outs. These heavy-duty airbags are also widely used in loading, floating, lifting, and moving sunken ships, as well as salvaging stranded boats.

Constructed with synthetic-tire-cord layers between inner and outer rubber layers, these cylindrical balloons represent an innovative ship-launching technology that overcomes traditional limitations of fixed launching tracks.

Key Advantages
  • Compliant with ISO 14409:2011 international standards
  • Eliminates restrictions of traditional launching methods
  • Saves time and reduces investment costs
  • Offers superior flexibility and safety
  • Proven technology accepted by shipyards worldwide
Product Specifications
Parameter Specification
Diameter (D) 0.5m ~ 3m, or customized diameter
Effective Length (EL) 1m~32m, or customized length
Total Length (TL) 1.2m~35m, or customized length
Loading Capacity 10 ~ 40 ton/m, or customized capacity
Product Technology Holistic wrapping technology
Standard ISO 14409
Working Pressure 7-500KPA
Lifespan 10 years
Material Synthetic-tire-cord layer
Certification SGS BV CCS ABS LR
Layers 4~12 layers
Material Construction

Our rubber airbags feature a robust construction with an outer rubber layer, multiple synthetic-tire-cord 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 reinforcement layer consists of rubber-coated synthetic-tire-cord fabrics twined at ideal angles using our patented Holistic Wrapping Technology. This ensures even stress distribution and optimal pressure containment.

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
Performance Specifications
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 35 170 186 510

1.2 28 140 185 420

1.5 20 110 181 330

1.8 16 90 178 270

2 14 80 176 240
QP6 0.8 56 245 215 740

1 45 200 219 600

1.2 32 165 217 490

1.5 25 130 218 390

1.8 20 110 220 330

2 18 100 220 300
QP7 0.8 64 270 237 810

1 50 220 242 660

1.2 38 190 251 570

1.5 29 150 247 450

1.8 25 130 257 390

2 23 120 264 360
QP8 0.8 70 300 264 900

1 54 240 264 720

1.2 45 210 277 630

1.5 32 170 280 510

1.8 29 150 297 450

2 26 140 308 420
Custom Ship Launching Airbags 7KPA-500KPA Holistic Wrapping Technology Custom Ship Launching Airbags 7KPA-500KPA Holistic Wrapping Technology Custom Ship Launching Airbags 7KPA-500KPA Holistic Wrapping Technology

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