Ship Launching Airbags

Category

Marine rubber airbag is made of natural mixed rubber and nylon cord, compressed air is used as filling material, and the ship is discharged and lifted by air compression deformation.

Additional information

Size Customized

Yes

Color

Black

Layers

Customized

Material

Metal, Rubber

Protection

No

Standrad

ISO17357

Product Details:

Marine rubber airbag is made of natural mixed rubber and nylon cord, compressed air is used as filling material, and the ship is discharged and lifted by air compression deformation. The use of airbags can save the cost of shipyard building dock and launching slipway, has the advantages of convenience, safety, and repeated use, and can effectively deal with the launching in bad terrain.

Our Marine rubber airbags use new integral winding production technology

  • The new technology that the head is two layers more than the body strengthens the use intensity of the airbag, and its airtightness and safety are also significantly improved.
  • The professional rubber formula greatly extends the service time of the airbag, which is twice as long as that of the ordinary airbag.
  • Standard nylon cord fabric, high-pressure explosion-proof performance is safe and reliable.

Marine rubber airbags are widely used for ship launching and docking in shipyards, especially medium and small shipyards alongside rivers and seasides in Asian and American countries. Marine airbags are often called ship launching airbags that indicate the most popular application of these heavy-duty airbags is for ship launching. It is estimated that more than 80 percent of newly built ships whose DWT below 60,000 are launched by marine airbags.

Key Features of Marine Airbags

  • Flexible in various launching projects: Airbags can be made to be specified sizes and layers as per the requirement of different launching projects.
  •  Easy Operation: The operation of launching vessels with rubber airbags is relatively easy, just laying out and inflating the airbags to lift the vessels and roll them to the water. It has not a strict requirement on slipway conditions. Ship launching can be executed even in tough conditions.
  • Durable and recycled: Marine Airbags can be used many times repeatedly.
  • High economy: As marine airbags can be used repeatedly and their cost is not high,  launching or docking ships with marine airbags can save much cost for shipyards or ship owners.

How to Select Marine Airbags for Launching ships

  • Ship launching airbags can be made into various sizes and layers according to the ship size and weight and the launching or docking conditions.
  • Effective length: The effective length should be the same as the ship breadth, or 1 meter shorter than the breath. We can make airbags in length from 5m to 24m.
  • Diameter: Select diameter based on the ship size and work requirement. Select bigger airbags for large ships, but smaller airbags for small boats. In case the ships need cleaning or repairing bottom, choose bigger airbags so that workers can work in a more comfortable posture under the ship. Diameter of 1.5m, 1.8m, 2m, or 2.5m are all suitable and available for large ships.
  • The number of layers: The more layers the airbag has, the bigger bearing capacity it has. To lift a ship to a certain height, enough airbags with enough layers are needed. Generally speaking, airbags with 6 layers are enough for most engineering works. Only in some rigorous situations, airbags will need 7-8 layers to enhance their performance. For example, if people use airbags to lift heavy caissons but their contact area is limited, and then airbags will need higher pressure and more plies to ensure safety.

 

Below is a chart for the bearing capacity of several sizes

Size of Ship Launching Airbags

SizeDescription
Diameter0.8m, 1.0m, 1.2m, 1.5m, 1.8m, 2.0m, 2.5m, 2.8m, 3.0m......
Number of Layers4, 5, 6, 7, 8, 9, 10, 11, 12......layers
Effective Length5m, 6m, 8m, 10m, 12m, 15m, 18m, 20m, 22m, 24m......
Dimensions and layers can be customized.

Load-bearing of Ship Launching Airbags

LayersDiameter (m)Bursting Pressure (mPa)Working Pressure (mPa)Loading-bearing per meter (T/m)
Working height = 80% dia
Loading-bearing per meter (T/m)
Working height = 50 % dia
Loading-bearing per meter (T/m)
Working height = 20 % dia
310.400.092.796.9811.17
1.20.330.07
1.50.300.07
20.230.05
40.120.03
60.080.02
410.530.123.729.3114.89
1.20.440.10
1.50.400.09
20.300.07
40.160.04
60.110.02
510.670.154.6511.6318.61
1.20.560.12
1.50.500.11
20.380.08
40.200.04
60.130.03
610.800.185.5813.9622.33
1.20.670.15
1.50.600.13
20.450.10
40.240.05
60.160.04
710.930.216.5116.2826.06
1.20.780.17
1.50.700.16
20.530.12
40.280.06
60.180.04
811.070.247.4418.6129.78
1.20.890.20
1.50.800.18
20.600.13
40.320.07
60.210.05
911.200.278.3720.9433.50
1.21.000.22
1.50.900.20
20.680.15
40.360.08
60.240.05
1011.330.309.3123.2637.22
1.21.110.25
1.51.000.22
20.750.17
40.400.09
60.260.06
1111.470.3310.2425.5940.94
1.21.220.27
1.51.100.24
20.830.18
40.440.10
60.290.06
After folding and strapping, rubber airbags are loaded into containers on wooden pallets

Please do not hesitate to drop us a message if you have any questions or demands.

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Why Choose Wingo Marine Products

Have passed ISO9001, ISO14001, OHSAS18001 certification; Weapon equipment quality management system GJB90001B-2009 certification; The drafter of Chinese standard HG/T5327-2018 for “Floating Rubber Fenders”.

Manufacturer

More than 30 years manufacturing experience, 6 endineers, 70 skilled workers, 36000 square meters workshop.

Lab Support

Technology research and innovation of rubber & SPUA (Spray Polyurea Elastic) are from the key universities and national labs.

Project Design

Experienced engineers checked your requirements with salesa manager together. The professional design can be provided when you needed.

Quality Raw Material

High-quality rubber and high-quality HDG accessories are used. Make sure the fenders have a longer service life.

One Stop Service

Help purchase other marine products and ship them together. Free storage until shipment.

Quick Shipping

40 KMS away from the wharf, no need to lease a warehouse in advance. Many cooperative forwarders, choose the best shipping plan for you. Save your time and money.

Fast Certificate

Get the following third-party certificates quickly. CCS、DNV、GL、LR、ABS、BV、NK、KR, RS, etc. Many of them have offices in our city.

After Sales

Tools and instructions for routine repair are provided with the goods. Under warranty the damages caused by quality problems will be free replaced instead of maintenance.

FAQ

Warranty is 12 months. Design life is 6-12 years. In case of quality issues during warranty, the supplier is responsible to repair or exchange. After-sales service will be executed in time.

Smooth and streamlined body, no cracks or bubbles or impurities or obvious dirt or other defects.

Usually we support T/T payment. If there are special needs, L/C can also be supported.  Other payment methods need further communication.

Of course. We often help our clients to purchase other items. Sometimes there is sapce in the container. It can save freight for you. 

Depends on the type and quantity of fenders. Our factory has been little affected by COVID-19. Most orders can be finished in one month.

We have a branch in Hong Kong.  They are also a great  team. You can get same good  service from them.

Inflation tools and repair kits are supplied with pneumatic fenders. If there is no high pressure air system, air compressor will be supplied.

No. All metal parts contacting with sea water such as flanges, bolts, pins etc adopt HDG steel. Zinc coating has good corrosion resistance and is cheaper.

Mill Inspection certification and Certification of Conformity will be provided at the delivery of the fenders. Third party’ certification such as CCS, BV, ABS are available at buyer’s request and cost.

(1) Pneumatic rubber fender adopts mixed natural rubber, with 60-64% rubber. (2) All metal parts contacting with sea water such as flanges, bolts, pins etc adopt HDG steel. (3) Inner layers is special air sealing layers. The outer rubber layer is UV-proof and anti-abrasion. Between them are rubber layers reinforced with cord net. The vulcanization time is 5 to 7 hours.

Yes, we can. We have long-term cooperation with the freight forwarder, can get a good freight quotation. Which can help top save your cost.

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