Factory Supply Marine Heavy Lifting Ship Launching Airbags

Model NO.: YT-6
Effective Length: 6-20meter
Guarantee: 24 Months
Trademark: Evergreen Maritime
Transport Package: Nude Packing, Suitable for Transport by Sea or by
Specification: 1.5X18
Origin: Shandong, China

Marine heavy lifting ship launching airbags

1.Usage of Marine Airbags

Ship Launching Marine Airbags, also known as roller bags or ship launching rubber balloon, are made of heavy-duty synthetic-tire-cord layers with inner and out rubber layers in long cylindrical balloon shape. Marine Airbags for Ship Launching and Dry Docking for barge can be used for n Brazil, Indonesia Shipyard especially for barges launching, pull to shore, vessels' haul out and ship landing work.
Factory Supply Marine Heavy Lifting Ship Launching Airbags


2.Comparison with other Launch Way

Rollers Bag is a innovative ship launching technology, comparing with "end-on launching", "side ship launching", "float-out". This ship launching technology overcomes the restrictions of fixed launching track of side-launch. Ship launching airbags are accepted by more and more shipyards world wide due to its advantages of saving time, saving investment, flexible, safety. The biggest vessel launched by ship launching airbags up to 100,000 DWT.

Factory Supply Marine Heavy Lifting Ship Launching Airbags
3.Material and constructure of Marine AirbagFactory Supply Marine Heavy Lifting Ship Launching Airbags
Factory Supply Marine Heavy Lifting Ship Launching Airbags


4.Classification of Roller Marine Air Bags

Ship launching marine airbags are categorized by "ordinary airbags", "high-bearing capacity airbags", and "Super-high-bearing capacity airbags" according to the bearing capacity.

  • QP Ordinary airbags - the air bag with 3, 4 or 5 layers of cord fabric 
  • QG High-bearing capacity airbags - the air bag with 6, 7 or 8 layers of cord fabric
  • QS Super-high-bearing capacity airbags - the air bag with 9, 10 or more layers of cord

The standard diameter of ship launching marine airbags (D) varies such as 0.8m, 1.0m, 1.2m, 1.5m, 1.8m and 2.0m, 2.5 meters etc. The standard effective length of air bag (EL or L) is from 6m to 26m, which should be specified by the user. Other specification ship launching airbags also can be supplied upon request.

5.Performance Parameters of Offhshore marine ships pneumatic rubber airbag

Model Diameter
Initial pressure
Rated working pressure,
Pe (KPa)
Bearing capacity (kN/m) Minimum burst pressure (KPa)
QP3 0.8 25 130 114 390
1.0 18 100 110 300
1.2 15 85 112 260
1.5 13 70 115 210
QP4 0.8 35 170 149 510
1.0 25 130 143 390
1.2 20 110 145 330
1.5 16 90 148 270
1.8 14 80 158 240
QP5 0.8 48 210 184 630
1.0 35 170 186 510
1.2 28 140 185 420
1.5 20 110 181 330
1.8 16 90 178 270
QP6 1.0 45 200 219 600
1.2 32 165 217 490
1.5 25 130 215 390
1.8 20 110 218 330
1. Rated working pressure:±5%.
2. Compress deformation: ±2%.
3. Internal pressure is the reference value.

Prior to delivery of the ship launching marine airbags, we test every air bag .All Evergreen Maritime ship launching marine airbags are manufactured and tested comply with  ISO 14409 "Ships and marine technology - ship launching air bags certificated by CCS, LR, DNV. 

6.examples of  marine ships pneumatic rubber airbag

Factory Supply Marine Heavy Lifting Ship Launching Airbags

7.Large factory work shop and good environment

Factory Supply Marine Heavy Lifting Ship Launching Airbags

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