Backflush technology – Flight Plastics, Winchester, United Kingdom recently expanded their sheet extrusion capacity by investing in a twin screw sheet extrusion line. The company, for years a leading producer of PET Sheet reel stock, uses this new line to produce top quality sheet from post consumer PET bottle flake. Video www.vimeo.com/11340094
To help accomplish this, Flight Plastics has equipped the extruder with a KREYENBORG four channel backflush screen changer for improved results during the melt filtration process. This innovative screen changer is based on the piston-type melt filter design, well known in the industry, but with the added feature of automated backflushing capabilities. The screen changer is completely automated – as contamination builds up on the screen pack, the melt pressure increases; when a pre-defined, adjustable, process pressure is reached, the filter elements are cleaned automatically by the backflush function.
Further information from Kreyenborg UK agents www.regismachinery.co.uk