Mitsubishi Heavy Industries Technical Review
    Vol. 52 No. 3 (2015)   Machine Tools
    Technical Papers

    M-VB25 Fixed Rail Bridge Type Milling Machine Series, Best Suited for 5-Face Machining of Thin Workpieces

    Yasuhisa Ichikawa,
    Takayuki Kume,
    Hiroyuki Tauchi,
    Akihiko Matsumura,
    Hiroshi Oishi,
    Keiichi Noriyama

    In cases mainly for the machining of roughly 500 mm-thick thin workpieces, a fixed rail bridge type milling machine is the best choice in terms of function and cost. But existing machines of the same type do not have sufficient ability to cut at the time of ram extension due to their poor machine stiffness. The developed M-VB25 fixed rail bridge type milling machine has materialized a high-stiffness bridge-shaped strong structure, which has been made to give full play to its high cutting ability at a substantial amount of ram extension. Along with the adoption of an operability-improved/maintenance function-reinforced original control board as well as display, energy saving promotion-based reduction of CO2 emissions has also been realized. The features of the M-VB25's technology are described below.