... with frame, main cylinder, knock-out cylinder, hydraulic system and drive mechanism, lower and upper limit ... drawing, stamping,bending,edge-folding, straightening, depressed mounting and etc.Independent drive structures and electrical devices ... KN 4006301000100016002000Knock-out force KN 120190190190240400Max. working hydraulic pressure Mpa 252525252525Slide-stroke mm 450500600600700700Knock-out stroke ...