FIELD: chemical industry. SUBSTANCE: multichannel extrusion head contains housing. The housing receives mandrel with cooling system and forming channels of profiled cross-section for polymer. The channels are connected to the supplying channel of the head. The mandrel is made detachable and contains two sections of segment cross-section. Insert provided with two flats is interposed between sections of the mandrel. The mandrel is mounted relative the longitudinal axis of the head by means of cylindrical pins. The inlet of the mandrel is provided with additional member of two guiding channels of variable cross-section. EFFECT: enhanced strength, rigidity, accuracy and efficiency. 3 dwg
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