Parallel screw has reasonable structure, good plasticizing effect, high output, stable extrusion and many other advantages.
The arris surface of the parallel twin-screw is usually spray welded with special dual alloy, effectively extend the lifespan of the screw.
The load torque of
the parallel twin-screw is large, but its energy consumption is low. During the extruding process of board or sheet, it can avoid flaws like black lines or yellow lines.