Punch press, machine that changes the size or shape of a piece of material, usually sheet metal, by applying pressure to a die in which the workpiece is held. The form and construction of the die determine the shape produced on the workpiece.

CZSR8201-3A1B is suitable for the application of two-hand push buttons, with 3 safety output contacts (N/O) and 1 auxiliary output contact (N/C). It should be operated in double channel mode, with the simultaneity time of less than 500ms.

The safety control system of punch machine is consisted of two-hand control buttons, light beam and safety relay. The hazard is mainly from the punching action. The operator activate the punching operation via two-hand control buttons. The light beam is used to prevent the human body from entering the action area of the punch machine.