1984 MORI SEIKI MV55 VERTICAL MACHINING CENTERS

Technical Description

The 1984 Mori Seiki MV55 is a 3-axis vertical machining center built for heavy-duty machining of large, complex components requiring extended table length and high spindle torque. Configured with a CAT 50 spindle taper, the MV55 delivers the rigidity and torque capacity necessary for demanding cuts in steel, titanium, cast iron, and hardened materials. The machine is powered by a 15 HP continuous-rated spindle motor, with maximum spindle speed of 4,000 RPM on standard configurations, reflecting the low-speed, high-torque design optimized for heavy roughing with large-diameter CAT 50 tooling. The worktable measures 55.1 by 21.7 inches and accommodates large workpieces and fixture assemblies. Axis travels span 41.3 inches in X, 21.7 inches in Y, and 22.0 inches in Z. The CNC control is typically a Yasnac MX-2 on earlier units or a Fanuc 11M on later production models, both offering reliable G-code programming and operator interface. A side-mount automatic tool changer with 30 positions supports extended unattended machining cycles. Overall machine dimensions are approximately 138 by 143 by 118 inches, with a weight of approximately 22,000 pounds. Box-way guideways on all three axes ensure structural stability and vibration damping appropriate for the heavy cutting applications this machine is designed to handle. Note: Mori Seiki merged with DMG to form DMG Mori around 2013; machines labeled MORI SEIKI are pre-rebranding era.