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Corrugated sheet extrusion line
Until very recently, all attempts to obtain a PC sheet under 0.8mm thick was hindered by the complexity of the tasks involved. But since the application had a big market, BG plast engineering team put their efforts to produce a calender that was able to make calibrated sheet of optic quality that possessed 0.5 mm minimum thickness. Strong rolls using high closing force and an exceptional control of thermoregulation flow rates made this possible. After the PC sheet was calendered, co-extruded with an anti-UV layer, passed through a controlled softening oven, it is then entered into a shaping stage which consist in a metal alloy rolls stack. These are controlled thermally, and according to the contour design desired they are shaped. The shaping assembly can be easily dismounted for a prompt substitution of rolls to be allowed. A special hall off unit completes the line.