It raises the purity of the final granule by straining foreign matter and carbonized residues from the melt coming from the extruder through a filter screen.
Recycled melt may contain paper, dust, burnt particles or small foreign matter. The melt filter passes these residues through a screen pack and retains them, allowing clean melt to reach pellet cutting. This stage directly affects both the appearance and the mechanical quality of the granule.
Screens clog over time; in this system, the hydraulic moving structure allows the screen to be changed while disrupting the production flow as little as possible. This reduces downtime and maintains line continuity. The screen fineness is selected according to the degree of contamination of the material being processed.
The melt filter is positioned between the extruder and pellet cutting, and usually works together with the melt diverter.
