Machine Comparison
Okuma GENOS L3000-e vs Okuma GENOS L400II
Okuma vs Okuma · CNC Lathes
Summary
The Okuma GENOS L3000-e and Okuma GENOS L400II are mid-size Okuma horizontal lathes on the same JIS A2-8 spindle nose, and both turn up to 500 mm (19.7 in) long as standard. The L400II swings the larger part as standard, 330 mm (12.99 in) against 300 mm (11.8 in).
The L3000-e has more room to grow through options: its turning diameter extends to 340 or 390 mm and its turning length to 1,100 mm, while the L400II is listed at 330 mm and 500 mm (19.69 in). The L3000-e tops out at 3,800 RPM and lists 22/15 kW (30/20 hp) of spindle power. Rapids are 25 m/min on the L3000-e and 20 / 30 m/min (66 / 98 fpm) on the L400II.
Specifications Comparison
| Specification | Okuma GENOS L3000-e | Okuma GENOS L400II |
|---|---|---|
| Max Turning Diameter | 300 mm (11.8 in) [340, 390 mm optional] | 330 mm (12.99 in) ▲ |
| Max Turning Length | 500 mm (19.7 in) [1,100 mm optional] | 500 mm (19.69 in) |
| Max Spindle Speed | 3,800 RPM ▲ | 30–3,000 rpm |
| Spindle Power | 22/15 kW (30/20 hp) ▲ | 11 kW (15 hp) |
| Spindle Taper / Nose | JIS A2-8 | JIS A2-8 |
| Rapid Traverse | 25 m/min (787 ipm) | 20 / 30 m/min (66 / 98 fpm) ▲ |
Advantages
Okuma GENOS L3000-e
- Optional turning diameters of 340 and 390 mm, above the L400II's 330 mm
- Optional 1,100 mm turning length against 500 mm (19.69 in)
- MY and MYW variants add milling and drilling to the same platform
Okuma GENOS L400II
- 330 mm (12.99 in) standard turning diameter against 300 mm (11.8 in)
- 20 / 30 m/min (66 / 98 fpm) rapid traverse against 25 m/min
Verdict
For flanges, hubs, housings and disc parts up to 330 mm across and 500 mm long, the Okuma GENOS L400II covers the work as standard and suits heavy facing and boring in steel and cast iron. The Okuma GENOS L3000-e suits job shops that turn longer bar-fed shafts or expect to need the optional 1,100 mm bed or 390 mm swing, and its MY variants add milling. Pick the L3000-e for range, the L400II for standard diameter.