During the Workshoop held within the scope of T 5.1a and dedicated to NEWEX project staff, Janusz W. Sikora from Lublin University of Technology on 14.02.2017 gave the lecture Extrusion heads. His presentation concerned the studies of current processing tools for the extrusion process such as extrusion heads. He showed the division of extrusion heads and discussed their construction and operation principles. The lecture included the constructional issues of longitudinal, angular, transverse and spiral extrusion heads for profile, blow film, flat film and sheet, for coating, for pelletizing and blow moulding.