Mitsubishi Heavy Industries Machinery Technology Corporation
The demand for higher quality and higher functionality of various rubber products such as
automobile tires, rubber hoses, belts, gaskets and seals has been increasing. To manufacture a
rubber product, various raw materials are mixed according to the application and processed into a
final product. Internal mixers (closed-type mixers) are widely used in the mixing process, which is
the most upstream process in the manufacture of rubber products, as the production equipment
which affects the quality of product rubber.
In view of customer needs for advanced mixing technologies, Mitsubishi Heavy Industries
Machinery Technology Corporation developed the MR-EX internal mixer (Figure 1) equipped
with a new proprietary intermeshing rotor system, and has contributed to an increase in the quality
of rubber and tire products and the improvement of productivity.
