Midwest CNC Services

Okuma Series Repair

Okuma MULTUS B-Axis Multitasking Repair

MULTUS is Okuma's B-axis multitasking line — MULTUS B200 through B750 (with II variants), MULTUS U3000 through U5000 large-envelope builds, and the historic MacTurn predecessors. These platforms add a B-axis milling spindle to a turning chassis; service work centers on the B-axis and the lower turret.

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Models in this series we service

  • MULTUS B200
  • MULTUS B250
  • MULTUS B300
  • MULTUS B400
  • MULTUS B550
  • MULTUS B750
  • MULTUS U3000
  • MULTUS U4000
  • MULTUS U5000

Common failure patterns

  • B-axis milling spindle bearing wear — highest-stress component.
  • Lower turret faults on twin-turret configurations.
  • ATC chain reliability on the multitasking ATC.
  • Sub-spindle alignment on dual-spindle MULTUS builds.

Controls used on this series

MULTUS runs on OSP-P200 on older builds and OSP-P300 on current. The flagship MULTUS U5000 and current B-II builds ship on OSP-P500.

Lead time

Lead time depends on the model, the failure mode, and parts availability. Diagnostic is fast; full rebuilds run 3 to 5 weeks on most jobs. We scope each job individually rather than quoting a generic window.

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