KREYENBORG Filtration Systems

For more than 40 years KREYENBORG has developed, designed and manufactured screen changers and melt filters. This experience is combined with permanent innovations and big know-how in the processing technology.

Correspondingly KREYENBORG screen changers are well established in the plastic processing.

The machines offer new processes in different applications and increase the profitability of complete lines.

Overview Filtration Systems

Discontinuous Screen Changers

Main application fields discontinuous screen changers:

quality filtration of virgin polymers
protection of downstream equipment
(pump protection)
Masterbatch production and compounding
(small batches)

Continuous Screen changers

Main application fields continuous screen changers:

Direct extrusion
(films, fibres/straps, profiles, sheets, tubes, etc.)
Compounding
(underwater-, strand-, watering pelletizing)
Raw material production
(polymerisation)
Recycling
(genuine recycled material and production waste/inhouse recycling)

High pressure and process constancy also during screen change.
Design in each case adapted to the process with regard to filter area and pressure constancy.

Continuous Backflush Screen Changers

Main application fields continuous backflush screen changers:

All kinds of recycling
(pelletizing and direct extrusion)
Processes with high demands concerning the process constancy
For increasing the screen life times
(in polymerisation and direct extrusion)

High pressure and process constancy also during screen change.
Pressure and volume flow constant backflush screen changers.

Pressure and volume flow constant Backflush Screen Changers

Main application fields pressure and volume flow constant backflush screen changers:

Very sensitive processes with high portion of recycled material
(fibres/straps/non-wovens, films, especially PET recycling)

For ensuring a high process and volume flow constancy.