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Non contact inspection for extruder bores

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Bestech Australia introduces the idiamCONTROL by Micro-Epsilon designed to detect the wear in extruder bores by non-contact internal inspection.

The idiamCONTROL allows precise planning of the maintenance intervals or replacement intervals of the individual extruder housing parts. With compound extrusion lines, continuous wear signs occur in the bores caused by abrasive raw materials, temperature and pressure. Exact maintenance intervals are therefore necessary to prevent expensive failures. 

The idiamCONTROL by Micro-Epsilon uses a sensor unit featuring integrated capacitive sensors arranged opposite to each other to measure the diameter of the bore. By turning the cross rollers 40° clockwise or counter-clockwise, the bore can be measured in six tracks altogether. For exact positioning, the sensor is centred on both ends by spring-loaded rollers. Several metal pins prevent the measuring cylinder from turning. 

The new touchscreen controller unit displays the measuring results graphically. The measuring signal is shown as a diameter over the complete bore length and any tolerance deviations are immediately displayed. The diameter values of several test cycles can be saved. 

Extruder wear is calculated by comparing the individual diameter values. A USB interface in the device allows data output while a calibration control checks the functionality of the measuring system.

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