Granulating lines with hopper in the plastics recycling process are intended for granulation of shredded in the form of plastic scrap, lightly printed loose materials of: PP, PE, PS, ABS, EPS. Equipping extruders of this line with a quadrangular feed hopper with attached mixer guarantees direct supply of input material to the plasticizing system of the machine. The use of single-screw plasticizing system in extruders of this line, appropriately selected extruder length and screw stroke in combination with double vacuum degassing ensure high quality of the final product.

The specificity of production and extrusion of the processed loose material, determines apart from the structure and dimensions of the plasticizing screw (in this case with a larger outer diameter than in the case of a film extrusion line with a compactor), the screw speed as well as the installed motor power.

The mechanism of the double degassing system allows effective gases removal from the extruded plastic and guarantees the quality of the granulate product free of air bubbles defects. Additionally the use of hydraulic drawer screen changers ensures proper filtration of the processed material.

Configuration table for granulating lines with hopper.

Model Extruder motor power [kW] Screw diameter [mm] Screw length [L/D] Hopper screen diameter [mm] Extruder output [kg/h]
KL-K/80 75 80 44 : 1 150 – 200 200 – 250
KL-K/100 110 100 44 : 1 200 – 250 350 – 450
KL-K/120 160 – 200 120 44 : 1 250 – 300 450 – 600
KL-K/140 200 – 280 140 44 : 1 300 600 – 900
KL-K/160 280 – 330 160 44 : 1 300 – 2 x 300 900 – 1200
KL-K/180 355 – 500 180 44 : 1 300 – 2 x 300 1000 – 1500

    Advantages of granulating lines with hopper include:

  • high output (up to 2500 kg/h);
  • equipped with an automatic or manual screen changer;
  • multi-stage degassing system;
  • use of a cutting die in water ring;
  • extruder control by the HMI operator panel;
  • innovative use of moving elements subjected to natural wear in the plasticizing system;
  • possibility of drying granules through a vibrating dewatering screen;
  • convenient granules collection system.
    Granulating lines with hopper are intended for extrusion:

  • printed, shredded plastic waste in the form of plastic scrap: PP, ABS, EPS, PS.