Qingdao Florescence Marine Supply Co., LTD. |
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Ship Launching Rubber Balloon Docking Airbags With BV Certificate
Lifting rubber airbag are also known as air bags, ship lifting airbag, ship rubber airbag,rubber tube, ship salvage airbag,rubber pontoon,inflatable air bags, air lifting bags, air balloon,salvage bags,ship launching rubber airbag. Airbag now are used for ship launching,loading and floating.They are widely used in cargo/boat/ship/vessel launching and landing,lifting and moving sunken ships and heavy goods.
Materials
An airbag is to be constructed of an outer rubber layer, one or
more synthetic-tyre-cord layers, and an inner rubber layer. The
arrangement of synthetic-tyre-cord reinforcement layers is shown in
the picture below, all materials shall be vulcanized firmly.
Prior to the airbag production, the outer and inner rubber layers
shall be tested to meet criteria in the following table in
accordance with the test methods given in the international
standard list in the table. While only one satisfactory sample per
batch is required for test numbers 1 through 3, all others must be
tested for test numbers 4 through 9 annually. If the first sample
fails, two additional sample should be tested. If the additional
samples pass the test requirements, the materials will be deemed to
have passed the test. Otherwise, the materials will be deemed to
have failed the test and another batch of materials shall be
selected.
Features
1.High resistance to pressure: When marine airbag is put under the
bottom of the ship, it is squeezed by the ship and the air. As a
result of the uneven rotation rate, the airbag will change the
spiral shape. Our products has high resistance to take the pressure
to remain its shape.
2.Durable anti-aging and wear-resistant ability: Marine airbags are
exposed to sunlight, fresh water, sand and other pollutants in a
hard environment. Our products are durable in appearance, resistant
to fresh water and chemicals, and resistant to aging.
3.Optimized layout: the strength model of inflatable airbag was
established and the function test was conducted.
Advantages of ship launching air bags
1 High strength
2 Wear resistance and anti-aging
3 Good air tightness
4 Safety and reliability
5 High kneading & compressing resistance and damping capacity
6 Design different sizes according to client's request
7 Good raw material-cord fabric makes us win warm praise from
clients
8 Produce according to ISO 14409
Different layers of airbags
Specification of marine docking rubber airbag
Diameter | 0.6 to 2.8m |
Effective length | 5 to 24m |
Layers | From 3 layers to 10 layers or customize according to requirements. |
Material | Natural rubber and fabric cord |
Working pressure | 0.05Mpa~0.17Mpa |
Standard | ISO14409 |
Certification | CCS,BV,ABS,ISO9001 |
Life span | Over 6-8 years |
Warranty period | 2 years with best after-sales service |
Stocks | Available |
Delivery time | Depends on the quantity, usually within 7 days. |
MOQ | 1 PC |
Payment terms | T/T or L/C |
Diameter | Effective Length | Layers with cord | Working Pressure | Lifting Height | Tons/Airbag |
1.2m | 10m | 6 | 0.17MPA | 0.9m | 78.51tons |
1.5m | 12m | 8 | 0.18MPA | 1.2m | 100.50tons |
1.8m | 15m | 8 | 0.15MPA | 1.5m | 104.69tons |
2.0m | 18m | 10 | 0.17MPA | 1.5m | 235.54tons |
2.5m | 18m | 12 | 0.16MPA | 2.0m | 226.12tons |
Loading of airbags
The requirements of launching ship and relevant equipments.
1.Ship
The engineering work under water line shall wholly be finished,
especially those equipments, valves and others that are to be
installed at the openings under ship waterline,the installations
should be approved by inspection. All the burrs, welding beading
and the like on the ship bottom or appendages should be ground
away. All the welds on the shell plate must pass inspection and
tightness test. The main dimensions of the ship should be measured
up and the mark of loadline must pass inspection. All the paint
work of the shell plate has been finished.
2. Ramp way
The ramp way on which the airbags will rolling should be cleaned
and be clear of sharp fends such as iron nail. The ramp way should
be leveled and the level error from left to right should less than
80mm. The ground caved in should be filled up and the ground
bearing capacity should be relatively equalized. The ramp made of
mud land, sanded land, sands or concrete, however, its bearing
capacity should be twice as big as the working pressure of airbags.
The slope of ramp is to be determined according to the size of the
launching ship and is generally no bigger that 1/7. In the range of
the whole length of the ramp way, the shape may be of multiple
combination with slope line, are line and others. However, the ship
bottom should not contact the ground even when the airbags are at
their lowest working height. The ramp way should extend into water
for certain length.
3.Winch
In general, a slow winch is to be selected, its veering speed is
about 9-13/m/min. The moving speed of a ship must not be more than
6m/min with the control of hauling force of winch wire. If the ship
weight is less than 200t, the moving speed can be increased
properly. The wire must be inspected and replaced regularity.
4.Air compressor
The type and capacity of the air compressor is to be selected
according to the total volume of all the airbags provided for the
launching and time required for air filling and the air pressure.
The gas tank of air compressor should be installed with
adjustable pressure limiting valve.
Application
1.For ship upgrading, conversion or new/repair launching
2.Marine airbag for salvaging sunken ship or heavy immersed steel
structure
3.For hoisting and transporting heavy goods up to 10,000 tonnes
structure on land
4.For floating use purpose as improve the draft.
5. Container for storing and transporting gas and corrosive
chemical liquid and pure water for voyage
6.Rubber airbags used for culvert making