Function 1, widely used: as an independent design of parts, from 1 inch -- 12 inches, the size is determined by the actual needs of customers, where there are sub-strip, printing, rewinding, coating, bonding, bag-making, paper-making and other workers for the equipment or other related central coiling machinery, are applicable to our factory inflation shaft. 2. Economic Design: the design of the shaft is necessary for practical work. It can be applied to all kinds of coil pipes, such as thick, thin, wide and narrow. Three, use time is long, maintenance is simple: although the inflation shaft is a mechanical component, but its own structure of each part are fixed specifications, can be used interchangeably, so that its maintenance is convenient. I plant the quality requirements of the parts of the inflation shaft strict, product quality * * guarantee. 4. Single parts: the inflatable shaft is a single part of the winding and unwinding machine. Each part in the structure has a fixed size and specification. It can be decomposed and combined to make the maintenance convenient and the lasting surface durable. Professional: Our Factory specializes in the production of inflation shaft, there are professional engineering and technical personnel on the design and installation of inflation shaft use for market research. 6. Big load-bearing capacity: the air-expanding shaft can be designed according to the actual model, using high-quality steel, increasing the load-bearing capacity. For example, the weight of more than 1 ton can choose steel materials. 7. Short working time: it only takes 2 seconds to separate and place the coil to inflate and deflate. It is simple, convenient and safe to place the coil. Where there is a winding, unwinding of the machine and equipment, can be applied to the expansion shaft. Inflation axis * * can reach six meters or more, * * short up to several hundred millimeters, are based on customer needs to determine the length. The expansion of the key-type gas expansion shaft is a single key bar, fulcrum spread to each key bar, balance force, can be applied to mechanical winding load-bearing heavy items. There are a variety of specifications, including 1 inch, 1.5 inches, 2 inches, 2.5 inches, 3 inches, 6 inches, 8 inches, 10 inches, 12 inches and so on, according to demand can be processed to produce different specifications of the expansion shaft.