Infra Systems offer electro pneumatic system providing multiple benefits for the user. For pneumatic / hydraulically operated presses safety light curtain can be easily installed. However it cannot be used directly for mechanical press.

Following Two Models are available

Model: THS 02 - The controller is having facility to connect two push buttons, facility of connecting Safety light curtain is not provided.

Model: THS 03 - The controller is having facility to connect two push buttons and facility of connecting Safety light curtain. Caution - In case of mechanical press, the ram cannot be stopped once it has been started from TDC. It cannot be stopped in between. This is the limitation of press itself. However the stroke would not start if hand is obstructing the beam.

System details

The system consist two push buttons and a controller. When both the push buttons are pressed, the output relay from the controller gets ON. When both the switches are operated, the output relay gets on for 1 sec and automatically gets off. The controller will operate a solenoid valve which in turn will operate a pneumatic cylinder. This pneumatic cylinder is used to pull the DOG of the rolling key press. Once the DOG is released for position, the stroke is completed.

TWO HAND safe operation :-

The stroke is allowed once only when both the switches are pressed at a time. The multiple strokes will not be continued if both the push buttons remains continuously pressed. You have to release the push button and press again. So both the hands of the operator are engaged to operate press.

SAFETY LIGHT CURTAIN :-

Safety light curtain can be connected with the controller. When safety light curtain is installed, operator will not be able to start the press when hand is blocking the beam. When some object is there between the two sensors, the output relay will not get ON even if the both the PUSH BUTTONS are pressed.

EASE OF OPERATION :-

Safety light curtain can be connected with the controller. When safety light curtain is installed, operator will not be able to start the press when hand is blocking the beam. When some object is there between the two sensors, the output relay will not get ON even if the both the PUSH BUTTONS are pressed.

DUEL RELAY FOR SAFETY OPERATION :-

Output of the controller is provided through two relays with their contact in series. This is to provide enhanced safety