Ship launching or upgrading depending on Air Bag is an innovative technology having utmost bright prospect in shipbuilding. Now the Flexible Launching Technology is full of mobility, with advantages such as saving effort, saving time, saving work load, saving investment, flexible, safe, reliable, and outstanding benefit, etc. The technology of apply air gasbag to the launching and landing of ships overcomes the restrictions of traditional slide board technology which is commonly used in building small or medium size ships.
After years of practice and accumulation of experience, we have developed this technology from facilitating the launching of only 1,000 DWT ships to current 55,000 DWT ships. And now this technology has become into a flexible, promising, secure and mature technology. Besides that, these airbags are widely used in upgrading of ships and boats of all sizes.
Launching / Landing Airbags, basic body consists of which consist of our rubber layers, synthetic-cord-reinforced rubber layers, are kind of a cylindrical airbags with hemispherical heads at the both ends. All of these are vulcanized together, and then compress air inside to enable in to roll.
Outer RubberThe outer rubber layer that covers the outside of launching airbags protects the cord layers from abrasion and other external forces. This compound has sufficient tensile and tear strength to withstand any weather condition and hard usage. Standard color is black.
Unique whole enlacing technologyExcellent material selection as per ISO 17357Cost effective, long service lifeGuaranteed quality and safetyFree consult and design projectLaboratory and field testCommission andtechnical directing serviceWell proven design and performance0.7 Mpa hydraulic blasting utmostAfter service for lifetime
Synthetic-tyre-cord layer for reinforcementThe reinforcement cord layers, which are made of Synthetic-tire-cord commonly used in tires, are arranged at ideal angles to hold the internal pressure and to distribute the stress evenly providing strong efficient reinforcement.
3. End Fittings
End fittings include air tightness swivel and airbags safety air inlet.
The standard specification of airbags.You can choose the required diameter and effective length to meet your projects.
Diameter (D): It is from0.8m to 2.0m.Effective Length (EL): It is from6m to 18m.Total Length (TL): It is from7m to 19.5mThe above specification only is our standard specification arrange. Other specification also can be supplied upon clients request.
The standard number of layersWe define the number of layer, which means the number of Synthetic-tyre-cord layer, in order to confirm the Safety Working Pressure. Normally, our airbags include 4, 5, 6, 7, 8 layers types. Other type is available upon clients request.
3. The material of airbags
Therere two kinds of synthetic-tire-cord because of the different performance.
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Item | Unit | 1400 dtex/2 | 1870 dtex/2 |
Break Strength | N/ strand | over 215.6 | over 284.2 |
Diameter | mm | 0.65 +/- 0.05 | 0.74 +/- 0,05 |
Adhesion Strength | N/cm | over 137.2 | less 156.8 |
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We define the suitable airbags as per the above 3 items.
Such as: Ship launching airbags D1.5m x EL 15m+ TL17m YT-6, 1870D
D 1.5m: the diameter is 1.5mEL 15m: the effective length is 15m3. TL 17m: the total length is 17m
YT-6: the number ofSynthetic-tire-cord layeris 6 layers1870D: the type ofSynthetic-tire-cord layer is 1870.
Features and Advantages:
In order to confirm the correct specification of air-bags, we hope you can considering the following questions:
1. Type of vessel?
2. LOA (length) of ship?
3. Width of vessel?
4. Vessel\'s actual launched weight (gravity weight)/weight without cargo?
5. What is the vessel\'s DWT?
6. Type of ground ship is built on? (Dirt, concrete, etc.) *Provide photo.
7. Depth in meters of the water where the ship first enters the water?
8. What\'s the angle degree of slipway? (Land, not under water)
9. Please provide the low/high tide schedule at site.
10. The working height? (The block stand height under the vessel)
11. Distance from bottom of propeller to the water level?
12. Distance from back of vessel (in dry dock) to the water entry point?