NANHAI SHIP LAUNCHING AIRBAGS

Ship Launching Airbags also known as Roller Airbags which are specialized airbags used for ship launching or upgrading. They were invented in 1980.Because of its economy, easy to operation, flexibility and safety, more and more shipyards begin to use this type airbag for ship launching, especially in China and Southeast Asia.

 

 

NANHAI SHIP LAUNCHING AIRBAG

Complete Ship Launching Solutions

Ship Launching Airbag Introduction

Ship launching airbags are specialized air bags that are used for ship launching or upgrading,and are also known as roller airbags. They were invented in 1980.Because of its economy, easy to operation, flexibility and safety, more and more shipyards begin to use marine air bag for ship launching, especially in China and Southeast Asia. 

Nowadays with the improvement of production technology and raw materials, ship launching airbag can be used at the launching of larger vessels which could be reach DWT of 100,000 tonnes.

International Leading Ship Launching Airbag Manufacturer

Nearly 20 years of R&D and production of ship launching airbag, adhering to the spirit of craftsmanship, focusing on details, pursuing excellence no matter where customers can see or not. NANHAI sales network covered more than 70 countries on 7 continents, and has been highly praised by the market and customers, become the world-class leading manufacturer of ship launching airbag (Marine Airbags).

Oversea Technical Support For Ship Launching Operation

NANHAI's after-sales service include the oversea technical support that guide customer how to operate launching ship. At present, NANHAI technical team has provided technical support in some countries in Southeast Asia, North Africa and South America. Specific information please contact us.

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    NANHAI

    BEENEST AIRBAG

    An airbag which is not scratched and punctured

      82% Increase

    Puncture resistance is 82% higher than traditional airbags.

      4.5 Times

    4.5 times safety factor (Normal 3 times safety factor)

      50% Off

    Service life is doubled, the cost of application is reduced by 50%.Almost no maintenance required.

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    NANHAI SHIP LAUNCHING AIRBAG

    NANHAI Ship Launching Airbag Type

    Ship Launching Airbag I BeeNest Airbag

    NANHAI SHIP LAUNCHING AIRBAG The safety factor adopted in the design of  NANHAI ship launching airbag is according to the recognized standard ISO 14409 , but the comprehensive performance of  NANHAI ship launching airbag far exceeds ISO 14409, and has been proved by a large number of experiments and applications. Long-term operating experience proves that it has high safety and reliability.

    • Application : Ship launching/Upgrading
    • Application Environment : Relatively flat, clean ramps
    • Diameter: 0.5m-3m Customized
    • Effective Length: 1m-32m Customized
    • Layers: 5-20 layers Customized

    BEENEST AIRBAG  (Puncture-resistance ship launching airbag) NANHAI is the exclusive manufacturer of BeeNest Airbag. On the basis of traditional ship launching airbags, Beenest Airbag equipped with high-strength anti-puncture composite material outside the airbag, which can effectively prevent accidental scratches and punctures caused by sharp objects, extremely adaptable to harsh working environments and improved the service life of the airbag significantly. Contact us to know more...

    • Application : Ship launching/Upgrading
    • Application Environment : Harsh ramp, uneven and with debris
    • Diameter: 0.5m-3m Customized
    • Effective Length: 1m-32m Customized
    • Layers: 5-20 layers Customized

    NANHAI SHIP LAUNCHING AIRBAG

    Advantages and Benefits

    “Invisible Sight” still maintain ingenuity. NANHAI always insists on producing advanced quality products to fully protect the safety of ships.

    ISO 14409:2011

    ISO 14409:2011 is intended for designing, manufacturing, testing and accepting air bags that are made of synthetic-tire-cord reinforcement layers. NANHAI regards ISO 14409 as the basis of manufacturing. At present, various indicators have far exceeded the standard, forming NANHAI own standards.

    AIRBAG SPECIAL STRUCTURE

    The synthetic cord layers are arranged at a certain angle, and the overall wrapped has no breakpoints, which can maximize the mechanical properties of the synthetic cord layers, without weak points, and achieve the best performance of the airbag.

    BEARING CAPACITY PERFORMANCE

    When compress deformation reaches 70%, and the inner pressure reach the rated working pressure, Pe.(Unit: kN/m) The core of bearing capacity is to test the pressure that airbag can bear during compression. The stronger bearing capacity,reflect stronger safety and stability of airbag. Like NANHAI Diameter 1.5m,5 layers airbag, bearing capacity exceed 85% than ISO 14409 requirements.

    AIRBAG SAFETY FACTOR

    Safety factor is the embodiment of comprehensive performance of ship launching airbag, it is an important factor to ensure the safe launching of ships.The safety factor of ship launching airbags depends on three important factors: material, design and production craft. At present, the safety factor of NANHAI ship launching airbag has reached at least 4.5 times, far exceed ISO14409 requirements 1.5 times.

    MIN-BURST PRESSURE

    Airbags shall be tested to the minimum burst pressure as specified with ISO 14409. Fill the airbag with water until the airbag burst.The water pressure at the time of bursting shall equal or be more than the value specified with ISO 14409 required.Like NANHAI Diameter 1m,6 layers airbag, min burst pressure exceed 78% than ISO 14409 requirements.

    AIRBAG-GASTIGHTNESS

    The airbag internal pressure should be recorded and compared with rated working pressure after 1 hour.The pressure loss should be less than 5% of rated working pressure.NANHAI airbag pressure loss will be less than 2% of rated working pressure after 1 hour test, even no pressure loss, no matter with the temperate changed.

    NANHAI SHIP LAUNCHING AIRBAG

    Unique Airbag Structure

    Normal airbag construction consists of outer rubber layer part, cord layers part and inner rubber layer part. On the basis of the normal airbag structure, NANHAI optimizes the production process, the Reinforcement Layer Part is added. Airbag shoulder is easily accessible part,enhanced protection and improved airbag safety.

    1Outer Rubber Layer Part
    I Mechanical protection (Friction)
    I Chemical Resistance (Environment)
    I Energy dissipation
    2Synthetic Tire Cord Layer Part
    I Carry load of membrane force
    I  Keep the geometry stable
    3Rubber Matrix Part
    I Adhesion to reinforcement material
    I  Distance layer of fabric plies
    I Shearing force loading
    4Reinforcement Layer Part
    I Strengthen the wear resistance
    I  Reinforces rubber
    5Inner Rubber Layer Part
    I Pressure transfer
    I  Ensure air tightness
    I Provides chemical resistance
    Airbag Quality With Normal Structure
    Airbag shoulder is easily accessible and weakness part, normal structure hardly afford huge loading capacity. Because normal structure airbag head part and body part is separated, not one-piece structure, another reason have no reinforcement part.
    Airbag Quality With Unique Structure
    One-Piece structure production process, synthetic tire cord runs through the whole airbag, no weak point, stronger loading capacity. Meanwhile add reinforcements at the shoulder part, provides double insurance for airbag safety.
    • ① Reducing joint
    • ② Pressure gauge
    • ③ Tee coupling
    • ④ Ball Valve
    • ⑤ Quick Connector A
    • ⑥ Quick Connector B
    • ⑦ Hose fitting
    • ⑧ Drag end
    • 1 : Airbag Cylindrical Body
    • 2 : Airbag Conical Head
    • 3 : Airbag inflated end
    • 4 : Airbag drag end
    • D : Diameter of airbag
    • LOA : Overall length of airbag
    • L : Effective length of airbag
    Details 1

    NANHAI Airbag Inflated End Stainless steel material with protective device.

    Details-2.1

    Normal Airbag Inflated End Carbon steel material without protective device.

    Details-3.1

    NANHAI Airbag Drag End Strong airbag drag end.Machining process,one-time forming.

    Details-5.1

    Normal Airbag Drag End Weak airbag drag end. Welding Process.

    NANHAI SHIP LAUNCHING AIRBAG

    Advanced Material

    Synthetic Tire Cord I Rubber Material

    NANHAI Synthetic Tire Cord Performance 

    Synthetic tire cord as a reinforcing material,have been proven to provide strong efficient reinforcement layers in airbags. Synthetic tire cord physical properties also determine the strength of airbag, which is an important part that cannot be ignored. 

    NANHAI adopt dtex/3 type synthetic tire cord (First Grade) as reinforcing material to ensure airbag strength. The breaking strength will get more than 313N per cord, which exceed dtex/2 type cord (260N-280N per cord). Contact us to know more indicators...

    NANHAI Rubber Material Performance 

    ISO14409 provide guidance data on rubber physical properties. The test experiments for rubber samples are different from the test experiments for the final product, therefore, the performance data of airbag will be different. NANHAI rubber material's tensile strength and tear strength etc. indicators all exceed ISO 14409, fully protect ship all-weather and under rough application conditions. Contact us to know more indicators...

    No. Rubber Material 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°C±1°C,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°C x 96h, extension 20% No crack ISO 1431-1

    NANHAI SHIP LAUNCHING AIRBAG

    Technical Specifications

    The core indicators of ship launching airbag quality comes from Rated Working Pressure, Bearing Capacity and Minimum Burst Pressure. These datas are calculated by specific calculation formulas. Another important indicator is NANHAI ship launching airbag safety factor could reach at least 4.5 times. The formula is as follows:

    F=PS, S=π x (D-H)/2

    • F: Bearing Capacity (Unit:KN/m)
    • P: Working Pressure (Unit:kPa)
    • S: Contact Area (Unit:m2)
    • D: Airbag Diameter (Uncompressed）
    • H: Height after airbag compressed

    According to the size (width, length) and weight of different ships, the selection of ship launching airbags need to be designed and calculated (if you need selection and specific data, please contact us). Therefore, the airbag parameters of some models are listed here for reference. ( Layers: The numbers of synthetic tire cord layers )

    Get Design and Data

      Layers

      Dia.

      Rated Working
      Pressure

      Bearing Capacity at 70%
      Compress Deformation

      Minimum
      Burst Pressure

      m

      kPa

      KN/m

      kPa

      6 Layers

      1.2

      197

      260

      887

      1.5

      157

      259

      709

      1.8

      131

      259

      591

      7 Layers

      1.2

      229

      302

      1031

      1.5

      183

      302

      824

      1.8

      152

      301

      687

      8 Layers

      1.2

      260

      343

      1172

      1.5

      208

      343

      937

      1.8

      173

      342

      781

      9 Layers

      1.2

      291

      384

      1311

      1.5

      233

      384

      1049

      1.8

      194

      384

      874

      NANHAI SHIP LAUNCHING AIRBAG

      Supreme Production Crafte
      NANHAI-SHIP-LAUNCHING-AIRBAG-equipment
      Rubber Sheet Extruder
      Rubber engineers continue to improve the rubber formula to improve rubber wear resistance and harsh environment adaptability.
      NANHAI-SHIP-LAUNCHING-AIRBAG-Calendering-of-Cord
      Tire Cord Calendering
      Adopt Dtex/3 synthetic tire cord as skeleton layer. Higher breaking force ensures the overall performance of the airbag.
      NANHAI-SHIP-LAUNCHING-AIRBAG-Vulcanization-Process
      Airbag Vulcanization Process
      The largest vulcanization system in China. High temperature and high pressure vulcanization process, the rubber molecular chain is strong and stable.
      NANHAI-SHIP-LAUNCHING-AIRBAG-production-craft
      Production Technology
      One-Piece structure production process, synthetic tire cord runs through the whole airbag, no weak point, stronger loading capacity.
      Why some airbag looks dirty, like used one?

      Rubber layer and tire cord layer are main raw materials of ship launching airbag. "Talcum Powder" is used in the production process by taking the advantages of slippery, soft and dry characteristics to prevent the adhesion between the layers and make it easier to operate and produce. But ignore the disadvantages to use "Talcum Powder" in the production process:

      • 1.Insufficient bonding strength between each layer.
      • 2.Airbag appearance looks dirty, like used one.
      • 3.Poor Production Environment.
      Unprecedented revolution in ship launching airbag industry.

      NANHAI has nearly 20 years experience in airbag production and R&D, always uphold the persistent belief in high-quality products. Through continuous efforts, finally our technical team applied the "Talcum Powder Removal Technology" to airbag production process. The feasibility, safety and stability of the process were verified by repeated type tests. Products performance improved greatly.

      NANHAI's subversive R&D capabilities and innovation capabilities have carried out an unprecedented "REVOLUTION" in the production process of airbags, and always maintained NO. 1 POSITION in the industry.

      NANHAI SHIP LAUNCHING AIRBAG

      Selected References

      Parts of Ship Launching Airbag projects. If want to know more, please contact us.

      Project Country: UAE

      Year: 2022

      Product: Ship Launching Airbag

      Airbag Spec.: D1.8m*L30m, D1.8m*L24m, 8 Layers

      Quantity: 15 Units

      Project Country: Korea

      Year: 2022

      Product: Ship Launching Airbag

      Airbag Spec.: D1.5m*L18m, D1.5m*L25m, D2m*L18m, 12 Layers

      Quantity: 32 Units

      Project Country: Iran

      Year: 2023

      Product: Ship Launching Airbag

      Airbag Spec.: D1.5m*L27m, 10 Layers

      Quantity: 21 Units

      Project Country: Indonesia

      Year: 2023

      Product: Ship Launching Airbag

      Airbag Spec.: D2m*L25m, D2m*L20m, D2m*L15m, 8 Layers, D1.8m*L15m,10 Layers

      Quanity: 28 Units

      Project Country: Singapore

      Year: 2023

      Product: Ship Launching Airbag

      Airbag Spec.: D2m*L16m, D2m*D18m, 8 Layers

      Quantity: 20 Units

      Project Country: Canada

      Year: 2023

      Product: Ship Launching Airbag

      Airbag Spec.: D1.5m*L23m, 10 Layers

      Quantity: 22 Units

      Project Country: Philippines

      Year: 2022

      Product: BeeNest Airbag

      Airbag Spec.: D1.8m*L15m, D1.5m*L6m,9 Layers

      Quantity: 15 Units

      Project Country: UAE

      Year: 2023

      Product: Ship Launching Airbag

      Airbag Spec.: D1.5m*L16m, 14 Layers, D1.5m*L16m,20 Layers

      Quantity: 10 Units

      NANHAI SHIP LAUNCHING AIRBAG

      Certifications
      NANHAI-SHIP-LAUNCHING-AIRBAG-CCS
      CCS (China Classification Society)
      NANHAI-SHIP-LAUNCHING-AIRBAG-bv
      BV (Bureau Veritas)
      NANHAI-SHIP-LAUNCHING-AIRBAG-abs
      ABS (American Bureau of Shipping)
      NANHAI-SHIP-LAUNCHING-AIRBAG-ISO
      ISO 9001:2015

      NANHAI SHIP LAUNCHING AIRBAG (FAQ and Market info.)

      1NANHAI is the manufacturer ?
      NANHAI is the international leading ship launching airbag manufacturer. Nearly 20 years experience of design, research development and production. Own the high brand reputation.
      2NANHAI ship launching airbag comply with ISO 14409 ?
      NANHAI fully comply and exceed the standard of ISO 14409, and formed the higher industry standard.
      3How to judge the safety performance of ship launching airbags?
      Airbag's safe factor is the key indicator of the safety performance. The safety factor of ship launching airbags depends on three important factors: material, design and production craft. At present, the safety factor of ship launching airbags from NANHAI has reached at least 4.5 times in an all-round way, exceeding ISO 14409 by 1.5 times.
      4Important Indicator of Airbag Bearing Capacity.
      Bearing Capacity=PS, S=π x (D-H)/2, "P" is "Working Pressure", "S" is "Contact Area". Therefore, an important indicator to determine the effect of Bearing Capacity is "Work Pressure". Working pressure depends on number of layers and tire cord strength. NANHAI adopt dtex/3 type synthetic tire cord (First Grade) as reinforcing material to ensure airbag strength. The breaking strength will get more than 313N per cord, which exceed dtex/2 type cord (260N-280N per cord).
      5What happens if rubber properties lower or not comply with standard?
      (1) Harsh environments, extreme cold/hot, insufficient performance. (2) Thickness is not enough,cause tire cord layer exposed. (3) Due to the low tear resistance lead to outer rubber layer damaged. (4) Poor anti-aging and ozone resistance, low wear-resistant,short service life. (5) No oil resistance.
      6Does higher natural rubber content make the rubber performance better?
      The senior rubber engineer made it clear that it is not higher natural rubber content make the rubber performance better,but to make the proportion of natural rubber reach the best ratio, so that the performance of production can reach the best state.
      7Does heaviest airbag mean the best performance?
      After long-term testing and application of airbags, not the heaviest product represents the highest quality performance.The factors that will cause airbag to be much more heavy. (1) The content of natural rubber is insufficient.Use scrap to satisfied the weight of airbag. (2) To achieve performance,the recycled rubber material content is high.(Counterweight Rubber). (3) Fewer tire cord layers, thus increasing the proportion of rubber.
      8How about ship launching airbag service life?
      The airbag is not a one-time use product, but reusable, which also reflects the economy of the airbag. NANHAI ship launching airbag design life can reach 15 years. According to different application environments, the actual application life can reach 8-15 years.

      Other Marine Airbag Classification

      Floating/Salvage Airbag I Caisson Moving Airbag I Lifting Airbag I Plugging Airbag

      Floating/Salvage Airbag  Know More...

      Caisson Moving Airbag Know More...

      Lifting Airbag Know More...

      Plugging Airbag Know More...

      NANHAI SHIP LAUNCHING AIRBAGS

      Ship Launching Airbags also known as Roller Airbags which are specialized airbags used for ship launching or upgrading. They were invented in 1980.Because of its economy, easy to operation, flexibility and safety, more and more shipyards begin to use this type airbag for ship launching, especially in China and Southeast Asia.