Machine Comparison
Okuma GENOS L250II vs Okuma GENOS L3000-e
Okuma vs Okuma · CNC Lathes
Summary
The Okuma GENOS L250II and the Okuma GENOS L3000-e are both Okuma turning centers, one size apart. The GENOS L250II is the smaller machine, with a 6 in (165 mm) chuck on a JIS A2-6 spindle nose; the GENOS L3000-e carries a 10 in (254 mm) chuck on a JIS A2-8 nose.
The GENOS L3000-e is larger on every capacity row: 300 mm (11.8 in) of turning diameter against 280 mm (11.02 in), with 340 and 390 mm as extra-cost options, and 500 mm (19.7 in) of turning length against 290 mm (11.42 in), with 1,100 mm optional. Its spindle is rated 22/15 kW (30/20 hp) against 11 kW (15 hp) and reaches 3,800 rpm against 3,000 rpm.
Specifications Comparison
| Specification | Okuma GENOS L250II | Okuma GENOS L3000-e |
|---|---|---|
| Max Turning Diameter | 280 mm (11.02 in) | 300 mm (11.8 in) [340, 390 mm optional] ▲ |
| Max Turning Length | 290 mm (11.42 in) | 500 mm (19.7 in) [1,100 mm optional] ▲ |
| Chuck Size | 6 in (165 mm) | 10 in (254 mm) |
| Max Spindle Speed | 30–3,000 rpm | 3,800 RPM ▲ |
| Spindle Power | 11 kW (15 hp) | 22/15 kW (30/20 hp) ▲ |
| Spindle Taper / Nose | JIS A2-6 | JIS A2-8 |
| Rapid Traverse | 25/30 m/min ▲ | 25 m/min (787 ipm) |
Advantages
Okuma GENOS L250II
- Smaller 6 in (165 mm) chuck, sized for flanges, discs and bushes
- Fits shops whose parts stay within 280 mm (11.02 in) of diameter and 290 mm (11.42 in) of length
Okuma GENOS L3000-e
- 500 mm (19.7 in) turning length against 290 mm (11.42 in), with 1,100 mm as an extra-cost option
- 22/15 kW (30/20 hp) spindle against 11 kW (15 hp)
- 10 in (254 mm) chuck and JIS A2-8 nose against 6 in (165 mm) and JIS A2-6
- 3,800 rpm top speed against 3,000 rpm
Verdict
The Okuma GENOS L3000-e is the choice for bar work, shafts and steel turning: its 22/15 kW (30/20 hp) spindle has twice the peak rating, and it brings a 10 in (254 mm) chuck and 500 mm (19.7 in) of turning length, with 1,100 mm available as an option. The Okuma GENOS L250II fits shops whose parts are short flanges, discs and bushes that sit in a 6 in (165 mm) chuck, stay within 290 mm (11.42 in) of length and do not need the larger spindle.