The Sysmetric Air Flow Regulation Profile Control uses linear step motor actuators for positioning valves that regulate the air flow in profile control systems for Blown Film Production Lines. These actuators have a dedicated Sysmetric designed motor driver electronic circuit that positions actuators within the air ring system increasing or decreasing the air flow in each segment of the bubble both quickly and precisely. Used in combination with our high technology control software, accurate and consistent adjustment is achieved irrespective of product dimensions and consistent results are guaranteed. These unique units, connected in series via a twin bus connector, greatly simplify the installation and operation of the profile control rings.