An extruder, in particular for elastomer material, is described, said extruder being of the type comprising an extruder body (1) provided with a cylindrical chamber (2) inside which an extrusion screw is rotatably inserted, and a plurality of mixing rods (4) inserted in the casing (1) of the cylindrical chamber (2) and projecting inside the said chamber (2) wherein each rod (4) is arranged tangential to the core of said screw(3) opposite interruptions in the thread of the screw (3) and passes through the whole of the chamber (2) engaging in both the opposite walls of said casing (1).
展开▼
