KNEADING ROTOR AND KNEADER

摘要

PROBLEM TO BE SOLVED: To provide a kneading rotor that can improve cooling efficiency while reducing a cost, and to provide a kneader.SOLUTION: A kneading rotor includes: a rotor shaft 27 which is a pipe-shaped member and which has a kneading blade 22 provided on an outer peripheral surface thereof, the blade having a solid structure having no space therein; and a helical pipe 29 which is inserted within the rotor shaft 27 and which is formed by helically disposing a flow pipe 28, through the inside of which a cooling medium C flows to cool the rotor shaft 27. The helical pipe 29 is disposed so as to be in contact with an inner peripheral surface of the rotor shaft 27.