Ship Launching Airbags

Diameter: 0.8 - 2.5m or customized
Length: 5 - 25m or customized
Cord Layers Number: 4 - 12 Layers
Loading Capacity: 10 ~ 40 ton/m
Certificates: ABS, CCS, BV, LR, DNV, etc.
Description FAQ

Ship launching airbags, also known as marine airbags, inflatable boat airbags, roller bags, airlift bags and rescue bags, are made of heavy-duty synthetic tire cord layers with inner and outer rubber layers in the shape of a long cylindrical balloon. Ship launching airbags lift the limitations of traditional skateboard technology that is usually used to build small and medium-sized ships, and it provides an economical alternative to expensive dry docks. Its size can reach 2.5m in diameter and 25m in length, and can be used for hoisting and transporting heavy structures weighing more than 10000 tons.

The outer layer of the shipping launch airbags is made of rubber, which is designed to protect the inner rope layer from external forces such as abrasion. The material used for the outer layer is strong enough to withstand different weather and physical conditions. The synthetic reinforcement layer is similar to the reinforcement layer in tires. The cord layers are organized at specific angles so that the stress is evenly distributed to provide adequate reinforcement. Airbags also have end fittings, including safety air inlets and airtight rotary joints.

Airbags for ship launching and landing is an extremely promising mature technology, it overcomes restrictions of traditional methods, which are limited by the building and repairing capability of small ship factories, and developed into an extremely flexible technology, which has the advantage of labor-saving, time-saving, economical saving, flexible and a prominent economic benefit. Boomarine is a professional manufacturer and supplier of marine fenders, our airbags are widely used in ship launching or landing, heavy lifting and conveying, sunken ship salvage, and stranded ship saving.


 

Features of Ship Launching Airbags:


- High-quality raw materials with ISO standards.
- Service life up to 15 years with reasonable maintenance and care.
- The quality and safety of the airbags are guaranteed.

- Labor-saving, time-saving, economical saving.
- Flexible and prominent economic benefit.


 

Applications of Ship Launching Airbags:


- Ship launching and landing.
- Heavy lifting and conveying.
- Sunken ship salvage and stranded ship saving.
Possible substitute for marine pneumatic rubber fender for protective purposes.

 

What types of ship launching airbags can we provide?


Ordinary airbags — the airbag with 3, 4 or 5 layers of cord fabric.
High-bearing capacity airbags — the airbag with 6, 7 or 8 layers of cord fabric.
Super-high-bearing capacity airbags — the airbag with 9, 10 or more layers of cord fabric.


The standard diameter of ship launching airbags (D) varies such as 0.8m, 1.0m, 1.2m, 1.5m, 1.8m, 2.0m, 2.5m, etc. The standard effective length of airbag is from 2m to 25m, which should be specified by the user. Other specification ship launching airbags also can be supplied upon request.


 

Specifications of Ship Launching Airbags:

 

Diameter(m)

Effective Length(m)

Layer

Pressure(MPa)

1

10

5~6

0.07~0.10

1

12

5~6

0.07~0.10

1

15

5~6

0.07~0.10

1.2

10

5~6

0.08~0.12

1.2

12

5~6

0.08~0.12

1.2

15

5~6

0.08~0.12

1.5

12

5~8

0.08~0.16

1.5

15

5~8

0.08~0.16

1.5

18

5~8

0.08~0.16

1.5

20

4~8

0.08~0.16

1.5

24

5~8

0.08~0.16

1.8

12

5~8

0.08~0.15

1.8

15

5~8

0.08~0.15

1.8

18

5~8

0.08~0.15

1.8

20

5~8

0.08~0.15

1.8

24

5~8

0.08~0.15

2

18

6~10

0.08~0.18

2

20

6~10

0.08~0.18

2

24

6~10

0.08~0.18

2.5

18

7~10

0.07~0.13

2.5

20

7~10

0.07~0.13

2.5

24

7~10

0.07~0.13

-----------------------  Number of Cord layers Weight of unit area
Kg/㎡
Air leaking ration at work pressure: pressure drop/h Main uses
Medium pressure
Air-bag (P4, P5)
4-5 6-7 ≤5% Suitable for the small ships
High pressure
Air-bag (P6, P7, P8)
6, 7, 8 8-9 ≤4% Suitable for the large ships 

How to choose the right ship launching airbag for your project?


1. The total launch weight of the ship, the carrying capacity of a single airbag and the overload capacity under special circumstances.

2. Whether the initial pressure of the marine airbag before loading and the change in internal pressure after loading exceeds the maximum allowable pressure.

3. The height of the deformed airbag and whether the height meets the requirements for the construction height of the bottom when the pier is removed.

4. Whether it can meet different launching slopes, sooner or later when the stern enters the water, and the bow airbag floats when overloaded.

5. Factors such as the ship’s length, total weight, and shore environment should also be considered.


 

Accessories of Ship Launching Airbags


accessories of ship launching airbags

 

Product Photos:


Ship Launching Airbags

 

Ship Launching Airbags Safety Inspection


1. Overpressure Control
The length and diameter of each vessel's launching bladder are measured at rated working pressure to within ±3%.

2. Appearance Inspection
The appearance of each of our marine launch bladders is smooth and shiny, free from imperfections such as cracks, blistering, delamination, pits or impurities.

3. Airtightness Inspection
Airtightness is tested according to ISO 14409 without carrying any load. The pressure loss within 1 hour is less than 5% of the rated working pressure.

3. Avoid Sharp Objects
When using it, make sure there are no sharp objects and make sure the ground is level and clean to prevent the airbag from bursting.

 

1. Can you provide OEM service?
A: Yes, OEM service is available. According to the different requirements in different applications, colors, sizes, shapes and special specifications can be customized.

2. What is your term of delivery?
A: We accept EXW, FOB, CIF, DDU and DDP, etc. You can choose the one that is the most convenient for you.

3. How long is your ship launching airbags' delivery time?
A: Generally it is 5-10 days if the ship launching airbags are in stock. If it is not in stock, it takes 15-20 days but it's basically decided by the quantity.

4. What are your terms of payment?
A: The payment term is flexible. We accept T/T, L/C,  and other terms. Open to discussion.

5. Is there any warranty on the quality of your ship launching airbags?
A: We have 20 years of experience in producing marine fenders. Each finished fender will be carried out inspection by our Q.C before shipping. Our ship launching airbags design service life is 20 years, our company has quality warranty at least 18-month.

6. What kind of certificate can you provide for ship launching airbags?
A:  Any third-party company inspection is available such as ABS, BV, NK, LR, CCS, etc.