Skymex wide

Thickness gauge for blown extrusion

SKYMEX WIDE CONTACT / NO CONTACT is a capacitive thickness gauge for bubble extrusion lines. It ensures continuous and accurate measurement of the film thickness profile detected by oscillating or rotating around the bubble. It uses a patented triple movement telescope.

The machine can use either capacitive or backscatter X-ray sensors. In the first case, the dielectric characteristics of the measured film produce a signal variation proportional to film thickness. In the second, which is suitable for products containing PA or EVOH, the signal is attenuated by the absorption of radiation proportional to film thickness. The sensor is mounted in the centre of the beam, the oscillatory rotation of the system around the bubble and the reading of the angular position allow a circumferential profile of the thickness to be generated over 360°.