Automatic duct production of second-tier is a particularly suitable duct to total flange duct production processing equipment. The device uses the international popular profiles welded structure, synthesis on the rack and integrated leveler beading, red tip of the mouth side port device, Hydraulic Shears and computer control system. On the rack with synchronization support in the form, and to adapt to the inner diameter of Φ480-610mm roll material. The computer control system with closed loop feedback to ensure a stable accuracy. ADL-II duct production line maximum feed speed of 15m/min, the length error of ± 0.5mm, diagonal error of ± 0.8mm. The production line can realize the material into groups of different sizes of wind. Control system in the English language can be changed easily. 
 The fully automatic air duct production of super second-line automatic production line to complete the total of flange plate and angle iron flange material and the joint seams. Linkage with the dual-flange machine, pneumatic folding side machine can be combined into an efficient linear to total flange duct production line. The maximum feed speed 12m/min per meter length of the error is ± 0.5mm, diagonal error of ± 0.8mm. 
 Automatic production of three-wire duct is a cost-effective equipment, very suited to total flange (TDF), angle flange, and Plug-in flange (TDC) mixed production. The device uses the international popular sections of welded structures, synthesis on the rack and integration guide rack leveler beading, red tip of the port side port, hydraulic fold, hydraulic Shears, and computer control system components. On the rack using synchronous adjustment support, adapt to the inner diameter of Φ480-610mm roll material. The computer control system with closed loop feedback to ensure a stable accuracy. Control system in the English language can be changed easily. ADL-III auto duct production line feed speed of 15m/min, the length error of ± 0.5mm, diagonal error of ± 0.8mm. 
 Automatic production of four-wire coil unwinding school level, beading, cut off the corner, the pressure in the joint mouth of odd and even ports, pressure bilateral total flange duct, the duct small footprint processing equipment line, small investment , effective, and high production efficiency, small footprint, the combination of convenience, in the on-site construction, high efficiency, compared with five production lines, with easy to move, small investment, quick, high-productivity features, is a the standard 5 lines. Fully automatic air duct production of four-wire feed speed is 16m per minute per meter length of the error of 0.5mm, the length of the error of 0.8mm. 
 Automatic production of five-wire duct, linear structure, reduce the transmission time of sheet metal, high production efficiency, sheet metal, the use of independent frequency control motor drive, 10 stick leveler beading institutions to guarantee the formation of a variety of thick plate sheet degree of processing material saving mode, each coil is only a waste of less than 20mm, folded side servo feed, positioning accuracy, especially in the mouth-shaped duct processing have obvious advantages, the use of the touch screen and keyboard dual-mode, to ensure operation stability, only one person to operate, the two removed the pipe, with the processing and counting functions for statistical and management, has a cumulative cumulative count in support of the printer function, production management. Can choose another 7mm flange side of the double linkage equipment used in the production angle flange production duct.