... ), HGC series for high speed punch press machine. Auto-feeder (gear type), HGC seriesSpecifications:Model: HGC-120, HGC-150, HGC-250, ... the spring.5.Manual change of the air valve is used to release the upper and lower rollers when inserting the ... for high speed, high precision feeding processing.2).This feeding machine has the widest range of applications, materials can be ranged ...