Effective purging of extruders

Customers demand film structure versatility when purchasing extrusion lines as they are
required to produce a variety of products.
This generally means that the processors have more job changes.
To handle the operation efficiently the changeover time must be minimised.
The key element of any product changeover is purging of the extrusion lines"hot"
parts,namely: the extruders,screen changers,adapters and the die.