The challenge in the high-precision cutting of large workpieces is the reduction of heat
deflection on machine tools caused by external and internal temperature changes. There is now a
need for a new high-precision cutting technology, as existing heat deflection correction technology
for dealing with the heat generation of the spindle no longer meets the need for higher precision.
Mitsubishi Heavy Industries, Ltd. (MHI) developed the "MVR-Eχ" double column machining
center. The MVR-Eχ realizes high-precision cutting with easier operation thanks to the internal
spindle cooling system and thermally stabilized columns, which were installed as standard on a
domestic product for the first time. As well as developing an operator assist system and adding a
preventive maintenance system, we addressed improvements in the exterior design and made the
machine take on a look that gives the impression of high precision.
