Introduction The J23-80 puncher press machine is a general punch machine used for pressing sheet metal, which is commonly used in watch, toys, tableware, telecommunications, instrumentation, electrical machine, automobile making and so many other fields. When the press machine is equipped with the automatic feeding device, it can carry out semi-automatic pressing. The nominal force of the equipment occurs 5mm distance from the slider to bottom dead center. In the design of cold pressing process, the working rules are selected according to the pressure curve diagram. When selecting, the intersection between use pressure and corresponding crank angle must be within the scope of strength. Technical Parameter Item Units Nominal pressure KN 800 Nominal stroke mm 7 Slide stroke mm 130 Stroke number min-1 40 Mold set height mm 390 Mold height adjusting amount mm 80 Slide block central distance mm 310 Working table size Front and back mm 570 Left and right mm 860 Working table hole size Front and back mm 310 Left and right mm 450 Diameter mm 400 Sliding block underside size Front and back mm 360 Left and right mm 400 Die shank hole size Diameter mm 60 Depth mm 70 Stand column distance mm 400 Working table thickness mm 85 Inclination Angle 20 Boundary dimension Front and back mm 1990 Left and right mm 1500 Height mm 2960 Motor power KW 7.5 Weight Kg 5800