Machine Comparison
Fanuc Robodrill Alpha-D21MiB5 vs Okuma GENOS M460-VE
Fanuc vs Okuma · Vertical Machining Centers
Summary
The Fanuc Robodrill Alpha-D21MiB5 from Fanuc and Okuma GENOS M460-VE from Okuma are direct competitors in the vertical machining centers category. The Fanuc Robodrill Alpha-D21MiB5 leads in rapid traverse (54 m/min (2,126 ipm) vs 40 m/min (X/Y); 32 m/min (Z)). The Okuma GENOS M460-VE shows specification advantages in 4 categories, though the Fanuc Robodrill Alpha-D21MiB5 may still be the better choice depending on your shop's specific needs and the type of work you run. Both machines are proven performers in production environments and represent solid investments for shops in the market for a vertical machining center.
Specifications Comparison
| Specification | Fanuc Robodrill Alpha-D21MiB5 | Okuma GENOS M460-VE |
|---|---|---|
| Rapid Traverse | 54 m/min (2,126 ipm) ▲ | 40 m/min (X/Y); 32 m/min (Z) |
| Table Size | 700 x 400 mm (27.6 x 15.7 in) | 1,000 x 460 mm (39.4 x 18.1 in) ▲ |
| Accuracy | +/- 0.004 mm | ±0.005 mm |
| Repeatability | +/- 0.002 mm | ±0.003 mm |
| Control | Fanuc 31i-B5 | OSP-P300A |
| Spindle Taper | BT30 | BT 40 |
| Machine Weight | 3,900 kg (8,598 lb) | 4,800 kg (10,582 lb) ▲ |
| Footprint | 2,050 x 1,750 mm (81 x 69 in) | 2,250 x 2,550 mm (88.6 x 100.4 in) ▲ |
| Price Range | $90,000 - $140,000 (new); $45,000 - $85,000 (used) | $85,000 - $110,000 ▲ |
Advantages
Fanuc Robodrill Alpha-D21MiB5
- Faster rapid traverse at 54 m/min (2,126 ipm) reduces non-cutting time between operations
- Backed by Fanuc's dealer and service network for parts and support
- High-volume production machining in automated cells
Okuma GENOS M460-VE
- Superior table size at 1,000 x 460 mm (39.4 x 18.1 in) vs 700 x 400 mm (27.6 x 15.7 in)
- Superior machine weight at 4,800 kg (10,582 lb) vs 3,900 kg (8,598 lb)
- Superior footprint at 2,250 x 2,550 mm (88.6 x 100.4 in) vs 2,050 x 1,750 mm (81 x 69 in)
- More competitive pricing at $85,000 - $110,000 compared to $90,000 - $140,000 (new); $45,000 - $85,000 (used)
Verdict
The Okuma GENOS M460-VE edges ahead on specifications in this comparison, particularly in Table Size and machine weight. However, the Fanuc Robodrill Alpha-D21MiB5 remains competitive and may be the better choice depending on price, dealer support in your area, or specific workholding and tooling considerations. Both are capable machines — the best decision comes from running your actual parts and evaluating total cost of ownership including tooling, training, and service.