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Okuma LB3000 EX III

Okuma LB3000 EX III is a configurable horizontal lathe platform offered with multiple bed, spindle, milling, Y-axis, sub-spindle, and tailstock arrangements. The series includes the OSP-P500L control, an A2-6 5,000-rpm spindle, and optional larger-bore spindle configurations.

Company overview

Okuma LB3000 EX III is a configurable horizontal lathe platform offered with multiple bed, spindle, milling, Y-axis, sub-spindle, and tailstock arrangements. The series includes the OSP-P500L control, an A2-6 5,000-rpm spindle, and optional larger-bore spindle configurations.

Industries and applications

  • Maximum turning diameter, length, and travels vary by L, M, MY, W, MW, and MYW configuration.
  • Sub-spindle, tailstock, chuck, steady rest, robot, and bar-feed packages change usable envelope.

Technical and quote details

  • X travel: 10.2 in / about 260 mm for MYW exhibition configuration.
  • Z travel: 22.2 in / about 565 mm for MYW exhibition configuration.
  • Spindle interface: JIS A2-6 standard; optional A2-8 and A2-11 available configurations.
  • Spindle speed: up to 5,000 rpm standard A2-6; option dependent.
  • Spindle power: 22/15 kW standard main spindle.
  • Tool capacity: V12 turret; milling and VDI configurations are option dependent.
  • Control: OSP-P500L in current series brochure.
  • Control: Earlier builds may carry a prior OSP generation; verify by serial and control nameplate.
  • Control: Record OSP software revision, enabled options, axis package, and automation from the machine build.
  • Compatibility, lineage, or lifecycle crosswalk: machine-to-turret-tooling to V12 turning or driven-tool package documented for the exact LB3000 EX III suffix (conditional). Verify suffix, turret face, station, shank or driven-tool interface, rotation direction, maximum speed, coolant, interference, and control option. Evidence: https://www.okuma.com/files/documents/LB-EX-III-Series.pdf
  • Compatibility, lineage, or lifecycle crosswalk: successor-generation to okuma-lb3000-ex-ii (manufacturer-documented-generation). EX III is the later product generation. This is not a parts, tooling, control, or option interchangeability statement; suffix and serial-specific documentation remain controlling. Evidence: https://www.okuma.com/files/documents/LB-EX-III-Series.pdf

Selection notes

Variables to validate

  • Do not use a generic LB3000 EX III record for service or tooling selection without suffix and serial.
  • Exhibition specifications represent one MYW configuration and are not universal.
  • OSP generation, turret, spindle, bed length, and automation must be confirmed from the build record.

Official product references

We work to keep this information reliable, but specifications and availability can change. Verify critical details with the manufacturer through the official resources above.

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