Shunhang Brand Customized Sizes Boat Lifting Durable Ship Rubber
Airbags
Product Introduction:
The ship rubber 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 rubber 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 rubber 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 Ship Rubber Airbag:
Structure of Ship Rubber 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 |
Lifting Capacity
The bearing capacity of rubber 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)
Storage of The Rubber Airbags
1. If the airbags won’t be used for quite a long time, it shall be
washed and dried, filled with talcum powder inside and coated with
talcum powder outside, place it in dry, shady and ventilated place
in the warehouse.
2. Place string the airbags should be far away from the heat
source.
3. The temperature of the warehouse should be kept no more than
30℃.
4. Keep the airbags away from acid, alkali, grease and organic
solvent.
5. The airbags should be stretched flat when not used. It is not
allowed to pile up and stack heavy object on the airbag.
Application:
Boat Lifting / Launching / Docking
Caisson foundation lifting and moving
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.
Ship Rubber Airbag , Marine Airbag, Ship Launching Airbag
