Of Shangqiu Total Flange wind pipe production equipment, fully automatic air duct produces three lines is a cost-effective equipment, ideally suited for total plate flange (TDF), angle steel flange and bayonet flange (TDC) hybrid production. The device uses the profile of the international popular welded structure, guide rack on the rack and integrated synthesis, leveling beading, Chong pointed mouth square mouth, hydraulic folding, hydraulic Jianban and computer control system composed. On the rack using synchronous adjustment of internal support to adapt to the internal diameter Φ480-610mm roll material. The computer control system uses a closed-loop feedback to ensure stable accuracy. The control system in the English language can be changed easily. ADL-Ⅲ automatic duct maximum feed speed of the production line to 15m/min, length of error is ± 0.5mm, diagonal error is ± 0.8mm.