marine launching ship airbag for professional with CCS authorized
structure of ship launching airbags
Synthetic-tire-cord layers, as the reinforcement layers, are twined at angles with excellent technology for higher internal pressure and more even stress distribution, for instance, the wrap is over 95 cords per 100 mm in width coming with breaking strength more than 310N per cords. Meanwhile, the high strength tire cords layers effectively enhance the explosion resistance capability of airbags even under high pressure. Normally, there are two types of tire cord materials with different performance for you to choose from.
Inner & outer rubber layers are made complying with ISO 14409 with sufficient tensile strength and tear strength, which make them capable to withstand severe weather conditions and hard usages. The outer rubber layers are used to protect the synthetic-tire-cord layers against abrasion and various external forces.
End fittings, mounted at the end of airbags, include sealing ends and air inflating ends for easy control of inner pressure.
ship launching airbags Specifications:
There are two kinds of synthetic-tire-cord with different performance. Refer to following table.
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D(m) |
Mid Pressure(4-5 layers) |
High Pressure (6-8 layers) |
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TP(Mpa) |
WP(Mpa) |
TP(Mpa) |
WP(Mpa) |
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||
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1. 0 |
0 . 14-0 . 16 |
0 . 12-0 . 14 |
0 .22-0.26 |
0 . 20-0.24 |
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|
|
1. 2 |
0 . 12-0 . 14 |
0 . 10-0 . 12 |
0 .20-0 .24 |
0 .17 -0.22 |
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|
|
1. 5 |
0 . 10-0 . 12 |
0 . 08 -0 . 10 |
0 .15-0.20 |
0 .13-0.18 |
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|
|
1. 8 |
0 . 08 -0 . 10 |
0 . 07 -0 . 09 |
0 .13-0.16 |
0 .11-0.14 |
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|
|
2 . 0 |
0 . 07 -0 . 09 |
0 . 06 -0 . 08 |
0 .12-0.15 |
0 .10 -0.13 |
|
|
The Selection of Ship Launching Airbag
Diameter: General speaking, the diameter of airbags for ship used is Dia1.5m. If the piers’ height is a little higher, we could choose the larger diameter airbags, such like Dia1.8m or Dia2.0m; and for the Dia1.0m or Dia1.2m airbags are suitable for some smaller sized ships.
Length of Effective (Le): The Le of airbags is the length of airbag’s cylinder part, and does not include the length of head vertebral body.
(1) Ship width≤20m: In theoretical, Le of airbags Ship width (B); and if the length of airbags could not feet the ship width, airbags could be put under ships for two rows.
(2) Ship width20m: Generally speaking, airbags will be put under ship as two rows, as butt arrangement or cross arrangement.
Operating Pressure of Airbags: Less than DWT 1,000 could choose S1 Category Airbags; Larger than DWT 1,000 could choose S2 Category Airbags; S3 Category Airbags are used for the special higher working pressure requirement situation.
NO.s of Airbags (N): The numbers of airbags required is decided by the length of ships/vessels, and N is equal to the NO.s of putting under ship body (N1) plus the spare ones (N2), which is formula: N1+N2=N (N1 stands for the pieces under ships, N2 stands for the pieces of spares). The main factors to decide numbers of airbags required is ship DWT and category of airbags. (NOTE: N1=DWT / (Bearing Capacity of Unit for airbags×Le), spare airbags are decided by the fact situation.)
Other applications of the ship airbag technology:
For ship upgrading, conversion or new/repair launching (Ship launching airbags)
For hoisting and transporting heavy goods up to 10,000 tonnes structure
Marine pneumatic rubber fender for protective purposes
Marine airbag for salvaging sunken ship or heavy immersed steel structure
Pneumatic rubber core for architecture engineering
Container for storing and transporting gas and corrosive chemical liquid and pure water for voyage
Rubber bag for ship ballast
For erecting floating bridge or pipeline
Information of the ship launching airbag:
ship airbag is an innovative technology that has utmost bright prospect in shipbuilding. It
overcomes the disadvantage of fixed track launching by which the productivity of
shipbuilding and ship repairing were limited in the small-sized and medium-sized shipyards.
Now the Flexible Launching Technology is highly versatile and helps maritime companies save
effort, time, work load and investment. The technology is flexible, safe and reliable.
Our Company
Nanhai airbag is the leading manufacturer for ship aibag or ship launching airbag, supplying to shipyards & trading companies in over 6 continents for ship launching or upgrading, repairs & salvage ship .
Having passed the QMS certifications of BV and ISO 9001,ISO17357,our products have been exported to more than 40 countries and regions around the world, being widely used in the fields of ports, ocean engineering, ships and tunnels. Last but not the least, We are the unique ISO17357 international standard certified pneuamtic rubber fender manufacturer in China.
If you want to more infomation about ship launching airbag,pls contact me sales@airbag.cc
