Pneumatics

Operational Principle:
By manually opening the door, the piston rod of the drive-cylinder is pulled out.
The thereby increased of 0.01 bar in the piston sided space acts as a signal for the
control-unit, the ventil opens, and the piston-rod opens completely.
When the door is completely opened, it can the be adjusted to automatocally close
after a given amount of time through return-springs in the hinges.
The cloing speed is adjustable.
The drive cylinder is provided with adjustable end cushionings; by which a soft
start is possible in both an opened or closed position

Construction size:

Ø 50 for door wing with max.   4m ² surface

Ø 63 for door wing with max.   7m ² surface

Ø 80 for door wing with max.. 12m ² surface