... , Wide application 2.powerful, Efficient ,CE 3.for holing ,for punching 4.high performance,easy ... σ60×75mmStroke rate50SpmMax shut480mmSlid surface330,450mmProcessing Obj.Metal etc.Weight8000kg Brief Introduction :J21 series press ... press, it is the main equipment of stamping sheet metal production, and can be used for punching,blanking, trimming, ... deep throat punching machine for metal sheet