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[China]
Trade Verify
Address: Beilongwan Industrial Park, Jimo District, Qingdao City, Shandong Province, China.
Contact name:Cathy Zhang
QINGDAO SHUNHANG MARINE SUPPLIERS CO., LTD. |
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Verified Suppliers
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Product Introduction:
Heavy lifting airbag is updated based on the ship launching airbags. This update makes heavy lifting airbags are more suitable for heavy lifting and moving work. Heavy lifting airbags have a different structure from the ship launching airbags. It can roll steadily when taking the load.
The heavy lifting airbag is one kind of the toughest inflatable lifting airbag. It can be used for heavy lifting and moving of huge heavy structures, caisson, buildings, etc.
Heavy lifting and transportation relying on heavy lifting airbags are cost-effective and flexible. Heavy lifting airbags will provide you with a unique capability of land transport very large vessels, heavy loads, or heavy construction .
The deflated heavy lifting airbag is very flat and can be placed under a grounded or stranded vessel that is hard aground. As little as 12 inches will provide very quick placement of lifting airbags under the hull.
The structure of Heavy Lifting Airbag:
Structure of Marine Airbag
1. Terminal iron
2. Cone airbag body
3. Cylindrical airbag body
D: Diameter of airbag
L: Valid length of airbag
Loa: Total length of airba
Pipe accessories of air inflation end
1. Iron attachment
2. Tee-joint
3. Pressure gauge
4. Ball valve
5. Hose joint
Specifications:
| Some common sizes of our heavy lifting airbags, customized sizes are also available | |||
| Diameter(m) | Effective Length(m) | Layer | Pressure(MPa) |
| 1.0 | 10 | 5~6 | 0.07~0.10 |
| 1.0 | 12 | 5~6 | 0.07~0.10 |
| 1.0 | 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 |
| 2.0 | 18 | 6~10 | 0.08~0.18 |
| 2.0 | 20 | 6~10 | 0.08~0.18 |
| 2.0 | 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 |
Application:
Hevey ship lifting and moving
Pipe lifting and moving
Caisson foundation lifting and moving
Tank lifting
Lifting Capacity
The bearing capacity of heavy lifting airbags were calculated based on the working pressure, contact area. Herein, working pressure was got upon the burst pressure and safety working factor.
Because of the flexibility of rubber airbag, the contact area will be effected by some terms. It inludes carried shipcondition, the different position from gravity center during the process of ship launching and landing. So the bvearing capacity of rubber airbags will vary as well as the contact area.
The approximate bearing capacity can be calculate as follows:
F=PS S=π x (D1-D2)/2
Where:
F is the bearing capacity
P is the working pressure
S is the contact area
P is the percentage of deformation (%);
D1 is the original diamater of the airbag (m);
D2 is the height of the compressed airbag (m)
Attention During Application
1. Working pressure must be controlled strictly, it is not allowed
to exceed the working pressure.
2. No sharp and protruding hard object on the contacting surface of
the airbags, to avoid the puncture on the skin of airbags.
3. Avoid the distortion along the length of airbag.
4. Empty inflating test must be performed if the airbags were not
used for a long time or after reparation. The pressure should be as
same as the testing pressure of our company. Inspectors must be at
least 3 meters away from the airbags. For repaired airbag which was
damaged in large scale, its working pressure should be lowered
reasonably. Besides, annual check should be conducted on airbags
which are used frequently.
5. Don’t drag the airbags on the ground.
