Used PVC compounding unit with Krauss Maffei twin-screw extruder (model: ZE 90Ax26D-UTi). Extruder specifications: barrel bore diameter 97.4 mm, outer screw diameter 96.5 mm, core diameter 66 mm, center distance 82 mm, screw shaft with 24 teeth, L/D ratio 26:1, driver power 320 KW at 200 rpm screw speed, max torque per screw shaft 6400 Nm, total heating power 70.2 KW at 400 V. Electric drive unit (direct drive) with motor made by ELIN Motoren of Austria; Oil circulation lubrication system by Flender of Germany; extruder heating / cooling system by Mennicken of Germany. Sound level < 85 dB(A). Plant total weight 14 metric tons.