Latest versions of these doors’ are electromechanical. Bottom Sliding type motors used in automation of circular opening doors ; It can be applied on doors with single leaf up to 4 meters.
They can be applied to narrow doors , because they don’t have pistons. Thanks to the quality products used in production , they are highly reliable engines.
Since the motor cable comes out horizontally , these motors can be mounted very close to the floor of the door leaf.
The 24 V versions are suitable for intensive use.
There are many alternatives.