2005 Okuma MU-400VA CNC 5-Axis Vertical Machining Center

The Okuma MU-400VA is a 5-axis vertical machining center with a reputation for rigidity and thermal stability that has made it a staple in precision aerospace, medical, and contract machining shops. This unit is configured as a true simultaneous 5-axis machine built around an integrated A/C rotary trunnion table, allowing complex contoured parts to be completed in a single setup. The work envelope provides travels of approximately X 30" / Y 18.11" / Z 18.11", and the trunnion carries a 15.75" (400 mm) round table for compact, multi-face workholding. Cutting is driven by a BT40 spindle turning up to 15,000 RPM, well suited to high-speed machining in aluminum, stainless, and tool steels. The machine is equipped with a 32-tool automatic tool changer, through-spindle coolant for deep-pocket and drilling work, and a chip conveyor for sustained production. Motion and programming are handled by Okuma's OSP control, known for its reliability and intuitive operation on the shop floor.

Compared to a conventional 3-axis Okuma vertical machining center in the same size class - such as the MB-46V or the earlier MC-V series - the MU-400VA is a meaningful step up rather than a simple replacement. Where a 3-axis VMC requires multiple setups, fixtures, and re-clamping to reach angled and back-side features, the MU-400VA's A/C trunnion adds full simultaneous 5-axis motion, cutting setups, reducing stack-up error, and opening the door to single-clamping production of complex geometries. Paired with the high-speed 15,000 RPM BT40 spindle and through-spindle coolant, this unit delivers finer surface finishes and faster cycle times than the older 3-axis platforms it builds on. For a shop ready to move into 5-axis work, the MU-400VA brings genuine multi-axis capability and proven Okuma reliability to the floor.