Reference Library › Turning Centers & Lathes › LB4000 EX III

Reference recordMBB·TURNING-CENTERS-LATHES/OKUMA-LB4000-EX-IIIUpdated 2026-10-10

Photo: Okuma (manufacturer)

MakeOkuma

ModelLB4000 EX III

Machine typeTurning Centers & Lathes

Max Turning Diameter18.90 in (480 mm)

Max Turning Length29.53 in (750 mm)

Spindle Nose TypeJIS A2-8 [JIS A2-11, JIS A2-15]

Speed Range42~4,200 [30~3,000, 12~1,400] rpm

Rapid Traverse X-Z1,181/1,181 ipm (30/30 m/min)

Standard Power40/30 [50/40] hp (30/22 [37/30] kW)

Standard chuck size10 in

TurretV12

Machine size (W × D × H)3,100 × 2,059 × 1,955 mm (122.05 × 81.06 × 76.97 in)

📋 Spec data: Standard (9 fields) · compiled from manufacturer and public sources · reference updated 2026-10-15.
These specifications describe the model in general. The year, control generation, spindle, and option package of a specific unit may differ — always verify against the actual machine. Methodology · Data sources.

Okuma

LB4000 EX III

Evidence updated 15 October 2026: specifications. How evidence is dated

MBB Model ID MBB-M-FQ9GZP · What is this?

Plan the installInstalled cost →

Will the floor take it?Floor & foundation
Who moves it?Rigging
Is the power ready?Electrical

Weight, footprint and connected load come from the exact unit’s data plate and the builder’s installation manual.

Manufacturer videoWatch on YouTube ↗

Not Your Typical LatheOkuma America Corporation · 1:00 · 2026-05-05

Okuma America Corporation · 1:27 · 2026-04-10↗
Okuma America Corporation · 3:46 · 2024-11-05↗

About the Okuma LB4000 EX III

The Okuma LB4000 EX III is catalogued under Turning Centers & Lathes in The Machine Blue Book CNC machine reference library. This entry documents the machine for identification and education; specifications above are compiled from manufacturer and public sources and describe the model, not a specific unit.

Showroom

Research Okuma LB4000 EX III in the Showroom → — specifications, photos and side-by-side compare.

Related machines

Okuma LB3000 EX III Okuma LB2500 EX II Okuma LB2000 EX III Okuma GP/GA-36FII Goodway GTW-1500Y Miyano BNA-42DHY3

Machinery terms

What Is a CNC Lathe / Turning Center?Live Tooling on a Lathe Bar Feeders & Swiss-Type Turning Spindle & Spindle Taper Explained What Is CNC?CNC Controls Spindle Hours vs Machine Hours

Manuals & documents

All Okuma manuals and documentation →

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