Closed mixing machines.

摘要

A closed mixing machine suitable for mixing rubber materials, comprising a closed mixing chamber and a pair of rotors received in the chamber for rotating in opposite directions, wherein the rotor tip clearance and the rotor rotation speed are increased up to values greater than typical values of the conventional mixing machine. According to this arrangement, mixing productivity is increased by a maximum of 70% with an even discharge temperature and a reduced energy consumption in comparison with a conventional arrangement.