Marine Ship launch airbags
Ship launching airbags, also called roller Marine Air Bags or ship launch Rubber Airbags, are long cylindrical balloons made of heavy synthetic tire cord fabric and inner and outer rubber layers. Ship Rubber Airbags and barge dry docks can be used in Brazilian and Indonesian shipyards, and Marine Salvage Airbags are particularly suitable for barge launches, docking, ship pulling out and ship docking operation.
Marine Rubber Airbag is our independent intellectual property rights of innovative products, the Floating Rubber Airbags are mainly applied to ship launching and landing, weight lifting and moving, installation of underwater buoyancy aid to salvage sunken vessels etc. Boat Launching Airbags launching technology was developed based on traditional slipway launching mode, Ship Marine Airbag overcomes the restrictions of traditional slipway launching mode. Our Salvage Lift Bags are less limited by space, no large mechanical equipment, can shorten the working period and save the unnecessary cost. Through years of development practice, our Marine Rubber Salvage Lift Bags are become more safety, effective and green environmental protection and they can launching a ship up to 100,000 DWT.
High Pressure Air Bags consist of an outer rubber layer, multiple heavy-duty synthetic tire cord layers, and a vulcanized inner rubber layer. The Dock Salvage Lift Bags of the ship is a cylindrical balloon with two tapered heads and an open end. The airtight swivel and air inlet assembly are screwed together with the port.
Comparison with other Launch Way
Rollers Bag is a innovative ship launching technology, comparing with "end-on launching", "side ship launching", "float-out". This ship launching technology overcomes the restrictions of fixed launching track of side-launch. Ship launching airbags are accepted by more and more shipyards world wide due to its advantages of saving time, saving investment, flexible, safety. The biggest vessel launched by ship launching airbags up to 100,000 DWT.
Material of Marine Rubber Balloon
Inflatable Marine Airbags are to be constructed of an out rubber layer, multilayer heavy-duty synthetic-tire-cord layers, and an inner rubber layer vulcanized firmly. Ship launching marine airbags are cylindrical balloon body, with two conical head and end mouth. Air tightness swivel and air inlet kits are screwed with end mouth. Refer below picture.
2. AIRBAG STRUCTURE & MATERIAL REQUIREMENTS
2.1 Airbag Structure
"XINCHENG" Marine Rubber Airbags' structure is consists of the outer rubber layer synthetic cord reinforced rubber layers and inner rubber layer.
Its shape characteristics: central body cylindrical + tapered on both ends.
Cord layers: 4,5,6,7,8,9,10, layers
Accessories: Pressure gage, Inlet valve, Pipe fitting and seal end ring.
Figure 2. Synthetic-tyre-cord
- Choose the best quality of imported natural rubber, such as smoked sheet rubber and 3L natural rubber from Thailand and Malaysia, which has good elasticity, ageing resistance, and will not take off layer. Meanwhile, During the process of produce rubber, we using efficient stabilizer to make rubber more environmentally friendly and no cracks.
2) Our marine rubber airbags' material using three strands synthetic-tyre-cords whose tensile strength can be 31 KG, which make our airbags more higher bearing capacity and safety.
||Elongation at break, %
Hardness, °(Shore A)
||Tear Strength, N/cm
||Compression set, %(70ºC±1ºC, 22h)
||After thermal ageing at 70ºC±1ºC, 96h
||Holding of pull lengthening, %
||Holding of elongation at break, %
||Change of hardness,°(Shore A)
||Static ozone aging test at 40ºCx96h
[ozone concentration(50±5)x10-8],extension 20%
3. SIZE AND SPECIFICATION
Standard size of Marine Rubber Airbags:
Diameter (D): 0.8m-2.0m
Effective length (EL): 6.0m-18m
Total Length (TL): 7m-20m
Cord layers: 4,5,6,7,8,9,10, layers
- Wrap threads that run vertically through the synthetic tyre-cord pattern.
- Weft threads that run perpendicular to the warp threads.
NOTE: Other size of airbags are also available follow customer's request.