1. 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. 2. The maximum working speed is 10m/min. The length tolerance is ± O. 5mm. The diagonal line tolerance is ± 0.8mm. This system can be satisfied the single class production 1000 m2 square model duct ability
