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Addex - Model EGC -External Gauge Control System
The patented EGC system stands out among all other air ring based systems through the number of control zones, 132-244, depending on the air ring size. This high number enables the system to address film thickness variations that other systems cannot. The EGC incorporates the well known Addex air ring that assures the highest possible output.
The Air Ring The air ring is equipped with horizontally sliding teeth that adjust the air flow through the radially located vanes in the air ring’s plenum causing preferential cooling on the outside of the bubble. A circuit board inside the air ring converts the mapped thickness profile into instructions for the scanning actuator which slides "in" or "out" a multitude of fingers (132-244 depending on air ring size), as needed, to open or close the airflow channels (vanes).
The Mapper Processes the raw signal profile and the reversing or fully-rotating nip position and nip roll speed.
Sensor Location Options
- The Live Ring (Carousel - left image): Located between the highest frostline and the collapsers.
- ALF (AllLayFlat - right image): Located in the middle of the collapsing frame.
- Scanner: Located after the primary nip.
Thickness Sensor Options
- Capacitive (Standard)
- Air Cushioned Nuclear (Gamma Back - scatter)
- Air Cushioned Capacitive
- IR (ifrared) Identifies barrier layer thicknesses
Floor-Mounted Console
Graphical User Interface Displays:
- control and air profiles
- trending and profile statistical analysis