Marine Salvage Rubber Airbags

Additional information

Diameter

0.8 ~ 2.5m, or customized diameter

Length

5 ~ 25m, or customized length

Cord Layers Number

4 ~ 12 Layers

Loading Capacity

10 ~ 40 ton/m, or customized capacity

Certificate

Manufacturer Certificate, BV/ABS/LR/CCS Certificate

Model

QP-ordinary, QG-high-bearing, QS-superhigh bearing

Standard

ISO 14409

Warranty

24 Months

Marine Salvage Rubber Airbags

Marine salvage and floatation is another application of ship launching marine airbags after update. Doowin Marine marine salvage airbags are designed with lifting belts and shackles equipped on the updated ship launching airbags.

Marine Salvage Airbags are the toughest air lifting bags. It can be used as a salvage pontoon for the supporting docks, and other floating structures. Also can be used to salvage the shipwreck, rescue the floating bridge, and dock construction. With the strongest pneumatic rubber body, salvage rubber airbags really come into their own when airbags employed in heavy-duty salvage work under a severe environment.

Why Rubber Marine Salvage Airbags

Rubber marine salvage airbags are made by multilayer heavy-duty synthetic-tire-cord layers. It’s more sturdy and reliability than PVC air lifting bags, what are widely used for the diving or marine salvage industry.

High Buoyancy Capacity

Salvage rubber airbags create high buoyancy capacity with safer air pressure. The buoyancy is 4t~300t.

Worked for Deep Water

Marine salvage rubber airbags can be used for deepwater salvage lifting. Can install safety valves.

Resistant to Abrasion

Salvage rubber air bags have 6~12 plies reinforcement layers to withstand most abrasion and puncture.

Structure of Marine Salvage Rubber Airbags

marine-salvage-rubber-airbags

Marine salvage airbags are equipped with lifting belts and shackles. For the big size, we also install safety valves. When the inner pressure reaches the rated value, it can open automatically to release the insider air-pressure.

You can choose the required diameter and effective length to meet your projects. The below specification only is our standard specification arrangement. Other specifications marine salvage airbags also can be supplied upon clients’ request. The biggest buoyancy capacity can reach 300ton. 

Air Bag Parameter

Marine Salvage Rubber Airbags Size

Product Name

Marine Salvage Rubber Airbags

Diameter (D)

0.8 ~ 3m, or customized diameter

Effective Length (EL)

6 ~ 40m, or customized length

Total Length (TL)

7 ~ 45m, or customized length

Loading Capacity

4 ~ 300ton, or customized capacity

Model of Airbags

QP-ordinary, QG-high-bearing, QS-superhigh bearing

Marine Salvage Airbags Various Application

Rubber marine salvage airbags have various application. It can be used for marine salvage or re-floatation objects from the seabed. It also can be used for buoyancy support, marine salvage, and re-floatation operation. Furthermore, we also can use marine salvage rubber airbags as buoyancy support pontoons for bridges, floating platforms, dock gates, sunken objects, or military equipment. Marine salvage airbags offer an effectual floatation method of reducing the draught of the vessel and lift bag salvage underwater structures. 

salvage-sunken-ship

Refloat Sunken Ships Salvage

Shipwreck salvage and floatation

Buoyancy-Compensation

Buoyancy Compensation

Provide buoyancy for ship

Flotation-and-salvage

Pipeline Buoyancy Support

Used for pipeline floating

Marine Salvage Rubber Airbags Buoyancy Capacity

Marine salvage airbags have different buoyancy capacities as well as performances With numerous combinations of diameters and lengths. Please refer below buoyancy list of standard marine salvage airbags.

Length

D=1m

D=1.2m

D=1.5m

D=1.8m

D=2.0m

D=2.5m

D=3.0m

5m

4t

6t

9t

13t

16t

25t

35t

6m

5t

7t

11t

15t

19t

29t

42t

7m

5t

8t

12t

18t

22t

34t

49t

8m

6t

9t

14t

20t

25t

39t

57t

9m

7t

10t

16t

23t

28t

44t

64t

10m

8t

11t

18t

25t

31t

49t

71t

11m

9t

12t

19t

28t

35t

54t

78t

12m

9t

14t

21t

31t

38t

59t

85t

13m

10t

15t

23t

33t

41t

64t

92t

14m

11t

16t

25t

36t

44t

69t

99t

15m

12t

17t

27t

38t

47t

74t

106t

16m

13t

18t

28t

41t

50t

79t

113t

17m

13t

19t

30t

43t

53t

83t

120t

18m

14t

20t

32t

46t

47t

88t

127t

19m

15t

21t

34t

48t

60t

93t

134t

20m

16t

23t

35t

51t

63t

98t

141t

21m

16t

24t

37t

53t

66t

103t

148t

22m

17t

25t

39t

56t

69t

108t

156t

23m

18t

26t

41t

59t

72t

113t

163t

24m

19t

27t

42t

61t

75t

118t

170t

25m

20t

28t

44t

64t

79t

123t

177t

ship-launching-rubber-airbags-production
ship-launching-airbags-production

All Doowin Marine marine salvage airbags are manufactured and insepcted fully compliant with ISO 14409 “Ships and marine technology – ship launching air bags“ and IMCA D016, certificated by CCS, LR, BV. 

All Categories

Marine Rubber Airbags

FAQ

The weight of ship launching airbags is calculated by airbag surface area. When you care too much about weight, you may be misled by some manufacturers. Please remember “It’s not that the heavier the airbag, the better the quality. Weight is not a good indicator of quality.”

It is very easy to distinguish used and new airbags. If there are abrasions on the airbags body, then it is used one. For the new airbags, it’s surface maybe looks ugly and dirty. It is because we use French chalk in the vulcanization process. When the water vapor in the vulcanization tank is mixed with French chalk, the surface will appear very dirty.

Our unique overall winding technology is different from the current mainstream airbag production technology. We innovate and improve on the basis of mainstream production technology. The airbag produced by the optimal winding angle technology can exert the maximum effect of the material, save the cost, and have a stronger lifting force.

Marine rubber airbags are not single-use products. It can be used for many times. But cannot define the exact number. General speaking marine airbags have 5~8 years lifespan under the correct usage and proper maintenance.

Marine rubber airbags are not single-use products. It can be used for many times. But cannot define the exact number. General speaking marine airbags have 5~8 years lifespan under the correct usage and proper maintenance.

The ship launching airbags price is calculated by the airbag’s surface area, not weight. Rubber airbag has two cone shape ends. But we normally, make the airbags as cylindrical shape to calculate its surface area. Its calculate formal is S=π x Diameter x (Diameter+Effective Length) x layer numbers. Then, multiply the surface area by the unit price. The unit surface price is quite different for different factories, generally it is in the scope of USD4 to USD8 for each square meters.

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