Machine Comparison
Fanuc Robodrill Alpha-D21MiB5 vs FANUC ROBODRILL D14MiA5
Fanuc vs FANUC · Vertical Machining Centers
Summary
The Fanuc Robodrill Alpha-D21MiB5 and FANUC ROBODRILL D14MiA5 are both from Fanuc's vertical machining centers lineup, making this a common upgrade or lineup decision for shops already invested in the Fanuc ecosystem. These machines are closely matched across most specifications, making the decision more about specific feature priorities, dealer support, and your existing shop ecosystem than raw spec advantages. 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 | FANUC ROBODRILL D14MiA5 |
|---|---|---|
| Rapid Traverse | 54 m/min (2,126 ipm) | 54 m/min (2,126 IPM) |
| Table Size | 700 x 400 mm (27.6 x 15.7 in) ▲ | 500 x 300 mm (19.7 x 11.8 in) |
| Accuracy | +/- 0.004 mm | ±0.004 mm (±0.00016 in) |
| Repeatability | +/- 0.002 mm | ±0.002 mm (±0.00008 in) |
| Control | Fanuc 31i-B5 | Fanuc 31i-B5 |
| Spindle Taper | BT30 | BT30 |
| Machine Weight | 3,900 kg (8,598 lb) ▲ | 2,700 kg (5,952 lb) |
| Price Range | $90,000 - $140,000 (new); $45,000 - $85,000 (used) | $60,000 - $90,000 ▲ |
Advantages
Fanuc Robodrill Alpha-D21MiB5
- Superior table size at 700 x 400 mm (27.6 x 15.7 in) vs 500 x 300 mm (19.7 x 11.8 in)
- Superior machine weight at 3,900 kg (8,598 lb) vs 2,700 kg (5,952 lb)
- Backed by Fanuc's dealer and service network for parts and support
- High-volume production machining in automated cells
FANUC ROBODRILL D14MiA5
- More competitive pricing at $60,000 - $90,000 compared to $90,000 - $140,000 (new); $45,000 - $85,000 (used)
- Backed by FANUC's dealer and service network for parts and support
- Consumer electronics manufacturers producing aluminum enclosures, frames, and housings at high volumes with robotic automation
Verdict
This is a close matchup. The Fanuc Robodrill Alpha-D21MiB5 and FANUC ROBODRILL D14MiA5 trade advantages across different specifications, making neither a clear winner on paper alone. Your decision should come down to practical factors: which dealer is closer, which control system your operators already know, what tooling ecosystem you're invested in, and which machine's specific strengths match your highest-volume work. Get quotes on both, run test cuts with your actual parts if possible, and factor in long-term service and support costs.