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Reasons for thickness gauging and control:
There are several reasons for inline thickness measurement on extrusion lines for film and sheet,
some are listed here:
- Less material consumption, due to possibility to produce with tighter tolerances
- Reduction of wastage, due to quicker production start with an inline thickness measurement
- Proof of quality - prevention of claims
- Tool for rejection of unwarranted claims
- Enhanced productivity: quick production start, alarm if tolerance-limits are reached
- Much better machinability of extruded film and sheet for printing or thermoforming e.g.