Machine Comparison
DMG Mori NLX 2500/700 vs Okuma LB3000 EX II
DMG Mori vs Okuma · CNC Lathes
Summary
The DMG Mori NLX 2500/700 and the Okuma LB3000 EX II are 10 in chuck turning centers in the same class, both with an A2-8 spindle nose. The NLX swings larger work and moves faster; the Okuma takes slightly larger bar and spins faster.
The NLX 2500/700 turns up to 18.1 in diameter against 413 mm (16.3 in), offers an optional 120 mm (4.7 in) Y-axis against the Okuma's ±55 mm (2.17 in) on MY/MYW models, and rapids at 30 m/min on both X and Z where the Okuma's X runs at 25 m/min. The LB3000 EX II has a 76 mm (3 in) bar capacity against 2.7 in, and a 5,000 RPM standard-bore spindle against 4,000 RPM. Controls differ: CELOS with Siemens or Mitsubishi MAPPS against the Okuma OSP-P300L.
Specifications Comparison
| Specification | DMG Mori NLX 2500/700 | Okuma LB3000 EX II |
|---|---|---|
| Y-Axis Travel | 120 mm (4.7 in), optional ▲ | ±55 mm (2.17 in) (MY/MYW models) |
| Max Turning Diameter | 18.1" ▲ | 413 mm (16.3 in) |
| Bar Capacity | 2.7" | 76 mm (3 in) ▲ |
| Chuck Size | 10" | 254 mm (10 in) |
| Max Spindle Speed | 4,000 RPM | 5,000 RPM (standard bore); 4,200 RPM (big bore) ▲ |
| Spindle Taper / Nose | A2-8 | A2-8 |
| Tool Capacity | 10-20 stations (BMT60/BMT40/VDI40) | 12-station turret |
| Rapid Traverse | 30 m/min (1,181 ipm) X and Z ▲ | 25 m/min X, 30 m/min Z |
| Control | CELOS with Siemens or Mitsubishi MAPPS | Okuma OSP-P300L |
Advantages
DMG Mori NLX 2500/700
- 18.1 in maximum turning diameter against 413 mm (16.3 in)
- Optional 120 mm (4.7 in) Y-axis travel against ±55 mm (2.17 in)
- 30 m/min (1,181 ipm) rapids on X and Z, where the Okuma's X axis runs at 25 m/min
- Turret options of 10-20 stations in BMT60, BMT40 or VDI40
Okuma LB3000 EX II
- 76 mm (3 in) bar capacity against 2.7 in
- 5,000 RPM spindle (standard bore) against 4,000 RPM
- Okuma OSP-P300L control for shops standardized on Okuma
Verdict
Pick the Okuma LB3000 EX II for bar-fed production up to 76 mm (3 in), where the 5,000 RPM spindle helps on smaller diameters, and for shops already running Okuma OSP controls. Pick the DMG Mori NLX 2500/700 for larger chucked work up to 18.1 in diameter, for parts with off-center features that need the 120 mm Y-axis, and for fleets standardized on Siemens or Mitsubishi-based CELOS controls.