Product Description →What are specification of Airbag ?   We could manufacture ship Rubber Airbag diameter from 0.8m up to 2.0m, length from 5.0m up to 22.0m, and layers from 4 to 10 layers.   If you are not sure about the airbag size needed, could tell me where do you use them, for ship launching, landing, marine salvage or caisson lifting? And the information( length, width, weight) of your target ship. We will recommend you a most suitable airbag size.     →Florescence  airbag  construction and material   Construction:  An airbag is to be constructed of an outer rubber layer, one or more synthetic-tyre-cord layers, and an inner rubber layer. The arrangement of synthetic-tyre-cord reinforcement layers is shown in the picture below, all materials shall be vulcanized firmly.   Material: natural rubber and synthetic-tyre-cord layer     →Florescence  airbag  launching solution   <1>Launching type   Based on the ship shapes, the ship may be launched,using air bags,by either end launching type or side launching type.   <2> End launching type   <2.1> There are three ways to arrange air bags when using the end launching type.They are (1) linear arrangement (2) staggered arrangement and (3) two lines arrangement. As for which arrangement to use, it needs to depend on the ship’s width and the length of the air bags. <2.2>  When the ship’s width is not greater than the effective length of the air bags, the linear arrangement shall be selected. <2.3> When the ship’s width is greater than effective length of an air bag and less than the effective length of two air bags, then staggered arrangement shall be selected. <2.4>  When the ship’s width is greater than the combined effective length of two air bags, or for special ship such as catamaran HSC or split hopper barge,the two lines arrangement shall be selected.The distance between the near ends of two air bags is greater than 0.2m.   <3> Side launching type   <3.1> For small flat-botton ship, side launching method may be utilized. In this case, the air bags of same specification,same diameter and same length shall be used. <3.2> The air bags shall be divided into two groups, and be evenly arranged under the low and the stern ends of the ship.The distance between two air bags shall be made equal.The distance between the ends of two groups shall be greater than 1m but not greater than 10 percent of the ship’s length. <3.3> The hauling rope shall be fixed at the middle of the two air bag groups and be perpendicular to the hull of the ship.     →How to choose   airbag size?   Airbag Diameter: Usually choose diameter 1.5m, when pier is a little higher, could choose 1.8m or 2.0m. For small boat, could choose 1.0m or 1.2m.   Effective Length: means the cylindrical airbag body, not including terminal iron. (1) boat width<=20m, theoretically effective length = boat width. (2) boat width>20m, usually choose two-lines arrangement or staggered arrangement. Tire-cord Layers: Normally choose 4, 6 or 8 layers. It's up to your boat tonnage.   The interval between each two airbags are no more than 6 Meters, and the specific interval is determined by the airbag diameter as the following chart  

Airbag Diameter	1.0m	1.2m	1.5m	1.8m	2.0m
Minimum Space	1.5m	1.8m	2.2m	2.8m	3.0m

      If you are not sure about the airbag size needed, could tell me where do you use them, for ship launching, landing, marine salvage or caisson lifting? And the information( length, width, weight)of your target ship. We will recommend you a most suitable airbag size.      →Florescence  airbag  loading pictrures   Certifications Certifications:          FAQ:   1. I have a shipyard and want to save cost for ship launching but I don't know how to use airbags. A: Please contact us. We have about20years' experience with ship launching airbags and we can Do help you on site while launching.   2. I worry about the quality because it will load thousands tons vessel for its launching. A: Our marine rubber airbags are made by special synthetic-tire-cord layer material. Holistic screw stype enlacing salvage airbags thus is has high kneading and compres-Sing resistance. Wear resistance and anti-aging extend its lifespan to 10~12 years.   3. Product warranty. A: We can give 5 years product warranty.   4. What about the shipping cost? A: The shipping cost is determined by the destination port, weight, packing size, total CBM of goods.   5. What's your minimum order quantity? A: If you need us arrange the delivery shipping, the minimum order quantity should be one piece. Mixed order can be accepted. It means you need different sizes.   If you have any questions or need any help, pls contact me freely, we will reply you within 24 hours----Coco(email: Coco at florescence.cc/ web site: www.fendercore.com)
     

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