Duct Manufacture Auto-line III consists of a metal feeding frame, leveling and grooving equipment, hydraulic punching square notch equipment, hydraulic cutter and folder. The electrical control system uses a computer with a closed-loop and servo-system to increase the precision and reliability of the manufacture line. The maximum working speed is 10m/min. The length tolerance is ± O. 5mm. The diagonal line tolerance is ± 0.8mm. One team will produce 1000 square meter of square duct by using this system Secondly: The working flow: Coiler--metal feeding frame--leveling and grooving equipment Square notch and punch cutter--fold and cut metal for TDF Fold and cut metal for inserted flange Cut metal for duct Thirdly: Basic Equipment: A: Two units of motor-driven metal feeding frames B: One set of leveling and grooving equipment C: Four sets of hydraulic punching square notch dies D: Hydraulic cutter and folder E: Industrial computer and special software Note: A: It can cut fixed sized metal, also can be used with a plasma cutting machine. B: (a) Punch "C", "S" inserted cleat notch. It can be used with "C" cleat and "S" inserted flange machines. (b) Due to different connecting methods for notch cutting, it can be used with TDF flange machine and TDF connecting machines. (c) It's able to punch all kinds of notches which are used by angle iron flange or "Z" shape flange machine. It can fold ", and "shape, and can be used with combined seaming machine to produce a complete set of duct. C: It can punch TDC notch and fold metal for inserted flange, to produce "shaped duct, for example. It can be used with both combined seaming machine and inserted flange to manufacture a complete set of duct.
