Operating principle:

The requirements on the filter technology depend heavily on the quality of the input material as well as the planned use of the granulate. Double- and multiple-piston screen changer systems for changing the filter screen with no interruption of production and minimal changes to the melt flow direction ensure the minimum possible pressure build-up in the screen changer. The straight flow path of the melt throughthe filter is essential for preserving the material quality.

- Automatic back flush units for repeated self-cleaning and significantly longer screen lifespans
- Laser and belt screen technology for continuous filtering depending on the type and extent of the contamination