The door leaf driving mechanism is comprised of electric motor driven reduction box, chain sprockets, chain, door holding and sliding carriage. The door projecting and re-tracking mechanism is pneumatic cylinder with necessary control and limit switches.

The door is Electro-mechanical and pneumatically operated by chain drive. The operation of the doors is by push buttons as indicated on the panel board.

At the time of opening movement of the door, the projection of door leaf takes place by pneumatic operation and then moves sidewise to open.

At the time of closing, door slide by electric geared motor chain drive to door window matching with door window opening. Then by pneumatic operation it resets in closed position.