Machine Comparison
Fanuc Robodrill Alpha-D21MiB5 vs Fanuc Roboshot Alpha-S100iA
Fanuc vs Fanuc · Vertical Machining Centers
Summary
The Fanuc Robodrill Alpha-D21MiB5 and Fanuc Roboshot Alpha-S100iA 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 Roboshot Alpha-S100iA |
|---|---|---|
| Control | Fanuc 31i-B5 | Fanuc 31i-B with Roboshot HMI |
| Machine Weight | 3,900 kg (8,598 lb) | 4,500 kg (9,921 lb) ▲ |
| Power Supply | 200/220V, 3-phase | 200/220V, 3-phase |
| Price Range | $90,000 - $140,000 (new); $45,000 - $85,000 (used) ▲ | $120,000 - $180,000 (new); $60,000 - $110,000 (used) |
Advantages
Fanuc Robodrill Alpha-D21MiB5
- More competitive pricing at $90,000 - $140,000 (new); $45,000 - $85,000 (used) compared to $120,000 - $180,000 (new); $60,000 - $110,000 (used)
- Backed by Fanuc's dealer and service network for parts and support
- High-volume production machining in automated cells
Fanuc Roboshot Alpha-S100iA
- Superior machine weight at 4,500 kg (9,921 lb) vs 3,900 kg (8,598 lb)
- Backed by Fanuc's dealer and service network for parts and support
- Precision plastic component production requiring tight shot-weight repeatability
Verdict
This is a close matchup. The Fanuc Robodrill Alpha-D21MiB5 and Fanuc Roboshot Alpha-S100iA 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.