Special single screw extruder for polyolefin,having high extruding velocity and effective piasticization.

Separation mixing screw specialized for polyolefin.

Specially designed three co-extuding die,reasonable channel,smooth outside and inside wall,and little internal stress.

Producing pipe limit Φ 20-Φ160mm,manufacture velocity up to 16 m/min.

May be used to produce HOPE silicon core tube,ordinary PP-R,PE angd PEX pipes.