Header pipe punching press with manual indexing used to cut rectangular type slots at the same time for each panel. The pipe is then manually indexed for the next punch again. The indexing is done manually by a wheel and then foot pedal is operated for punching operation. Mainly used by power transformer industries. eader Pipe Diameter 89 mm or as per requirement Header Pipe Wall Thickness 2.5 mm â?? 4.05 mm No. of Slots in header Pipe for each Panel 2 Nos or Single hole Centre distance b/w slots for panels 40 mm to 50 mm Max. length of header pipe for slotting/punching 2000 mm Arc Length of slot 90 mm Max Controller Mitshibushi PLC Mitshibushi HMI Mitshibushi