Abstract: A continuous type kneading machine comprising a chamber formed by a pair of parallel cylindrical cavities communicated with each other at their sides and a pair of rotatable rotors housed in disengaging state in the cavities, wherein each of the rotors is formed in a blade form having a spiral angle and a constant cross section in the axial direction, and directions of the spiral angles of the rotors in the cavities are opposite to each other and a phase difference in the axial direction during rotation of the rotors is kept at constant.

Abstract: A horizontal-type biaxial kneader for rubber kneading and such operation. It comprises two mixing chambers provided in juxtaposed relation, which mixing chambers are connected through an interposed region below a ram and above a bridge, and rotary shafts each equipped with a rotor blade including at least two blade wings, which rotary shafts are provided in parallel to each other within the two mixing chambers, so that the content of the mixing chambers is interchanged between the mixing chambers by rotating the rotor blades in directions opposite to each other. The rotor blades have a cross-sectional configuration characterized in that a scrape angle on the rear side of the tip of each blade wing is made larger than a bite angle on the front side of the same.