Tile type inflatable shaft adopts aluminum alloy tile, expansion flexibility, high-quality rubber liner and quick charge and exhaust nozzle, good sealing effect, long service life, convenient disassembly head, repair. After inflation, the expansion part is the fulcrum plate, uniform dispersion, uniform stress, usually bulge height up to 4mm to 5mm, the applicable rolling precision machinery or coiling lighter items, special expansion height further requirements, 3 inch plate flatulence axis usually use the tube inner diameter of 76mm, especially suitable for high roundness requirements or by surface reeling occasions of paper tube, can effectively improve the efficiency and the quality of the products, can accept all kinds of non-standard goods.