Marine airbag is a flexible heavy load carrier designed according to the principle of log rolling, which is widely used in the fields of caisson jacking, moving and launching in port construction. Launching air bag is widely used in ship up and down the water, launching ships from dozens of tons of self-weight of the flat boat to the current tens of thousands of tons of large ships, practice has proved that the ship air bag up and down the water process is safe and reliable, it is the air as the medium to complete the hull movement, handling and other work. At present, the technology has been recognized by the shipbuilding industry and port construction industry at home and abroad, and the airbag launching technology has been promoted in the United States, Europe and Southeast Asia and other countries.

Compared with the previous docking process, the integral winding process is more innovative in manufacturing methods. The interface of the traditional docking air bag may burst due to failure to support under heavy pressure, while the integral winding air bag adopts the winding production method of one layer of cloth and one layer of glue, and each layer is crossed at the Angle of each layer. After mechanical rolling, there are no bubbles and the adhesion is smooth and good. The air bag made in this way is balanced no matter from which part of the force, so that the performance of the air bag in the use of tear strength, tensile degree, service life and other properties have been greatly improved.