Machine Comparison
Fanuc Robodrill α-D21MiB5 vs Okuma GENOS M460-VE
Fanuc vs Okuma · Vertical Machining Centers
Summary
The Fanuc Robodrill α-D21MiB5 and the Okuma GENOS M460-VE are both vertical machining centers, but they are built around different spindles: BT30 / BBT30 on the Fanuc Robodrill α-D21MiB5 and BT40 on the Okuma GENOS M460-VE. The first is the faster-moving 30-taper machine; the second is the more powerful 40-taper machine.
As standard the Okuma GENOS M460-VE has the faster and more powerful spindle: 15,000 rpm against 10,000 RPM, and 22/18.5 kW (30/25 hp) against 11 kW (15 hp). Fanuc lists 24,000 RPM and a 26 kW (35 hp) peak as an extra-cost high-speed option. The Okuma GENOS M460-VE holds 32 tools against a 21-position turret. The Fanuc Robodrill α-D21MiB5 rapids at 54 m/min (2,126 ipm) against 40 m/min in X-Y and 32 m/min in Z.
Specifications Comparison
| Specification | Fanuc Robodrill α-D21MiB5 | Okuma GENOS M460-VE |
|---|---|---|
| Table Size | 750 x 400 mm (29.5 x 15.7 in) | 1,000 × 460 mm (39.37 × 18.11 in) |
| Max Spindle Speed | 10,000 RPM (24,000 RPM optional) | 15,000 rpm ▲ |
| Spindle Power | 11 kW (15 hp) standard; 26 kW (35 hp) peak on high-speed option | 22/18.5 kW (30/25 hp) ▲ |
| Spindle Taper / Nose | BT30 / BBT30 | BT40 |
| Tool Capacity | 21-position turret | 32 |
| Rapid Traverse | 54 m/min (2,126 ipm) ▲ | X-Y 40, Z: 32 m/min (X-Y: 1,575, Z: 1,262 ipm) |
Advantages
Fanuc Robodrill α-D21MiB5
- Rapid traverse of 54 m/min (2,126 ipm) against 40 m/min in X-Y and 32 m/min in Z
- Optional high-speed spindle with 24,000 RPM and a 26 kW (35 hp) peak, at extra cost
- Suited to multi-face drilling and tapping and small 5-axis parts in limited floor space
Okuma GENOS M460-VE
- 15,000 rpm standard spindle against 10,000 RPM standard
- 22/18.5 kW (30/25 hp) spindle against 11 kW (15 hp) standard
- BT40 taper and a 32-tool magazine against BT30 / BBT30 and a 21-position turret
- 1,000 × 460 mm (39.37 × 18.11 in) table for vise and fixture-plate work
Verdict
Choose by tool size and cut. The Fanuc Robodrill α-D21MiB5 suits drilling, tapping and light milling of small parts, where 54 m/min (2,126 ipm) rapids keep short cycles short, and its extra-cost high-speed option reaches 24,000 RPM. The Okuma GENOS M460-VE suits general milling with larger cutters: BT40, 22/18.5 kW (30/25 hp), 15,000 rpm as standard and 32 tools for longer jobs. For heavier cuts the Okuma GENOS M460-VE is the fit; for fast small-part production, the Fanuc Robodrill α-D21MiB5.