Industrial Envelope Punching Machine is a clutch operated machine for automatic stop after each impression. Most rigid machine to undertake full Load. Useful for manufacture of Envelopes.Inland letters, cards etc. Distance between the two plates is adjusted by means of Bevel gearing, according to pile of papers & height of die. Extra Heavy Duty Punching Machine(Special Order)Extra heavy for cutting industrial insulating materials duplex foam, fabric pads used in automobiles, generators and Air Conditions.