TDF unit is one of the two universal flange makong systems in the world with low cost,wel-seal and easy fabrication,specially suitable to produce a duct with medium section area and appiled in large-scale industrial manufacture. As a flexable machine,TDF will adapt to an auto line with a pitteburgh lock machine,notcher and bending machine,it may also be used on site. MKX TDF system is divided into T-12,T-15,duplex machine 2-T12 etc. T-12,T-15 from one side into clip and the other side into flang at the same time,and duplex 2-T12 forms both sides contemporay into a flange. TDF may be commonly used for its width ranges from 300 to 1530mm.Its maximum work speed is 6n/min. TDF of MKX may produce both transverse duct snap flange and the corresponding duct corner.