Automatic Booths have reciprocator station with two cutouts on opposite sides for reciprocators and recoveries. 

Two reciprocators carring Auto Guns operate from Two sides of the articals passing over the Conveyor.
Reciprocators are pneumatic or electromechanical type. Stroke height and spped i.e. number of strokes per minute are adjustable. Multiple guns can be mounted on reciprocators for higher conveyor speeds or larger artical heights. 

Manual back to back touchup stations are provided with auto booths.