Machine Comparison
Niles-Simmons N20 MC vs Okuma MULTUS B200II
Niles-Simmons vs Okuma · Mill-Turn Machines
Summary
The Niles-Simmons N20 MC from Niles-Simmons and Okuma MULTUS B200II from Okuma are direct competitors in the mill-turn machines category. 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 mill-turn machine.
Specifications Comparison
| Specification | Niles-Simmons N20 MC | Okuma MULTUS B200II |
|---|---|---|
| Control | Siemens 840D SL | Okuma OSP-P300SA |
| Main Spindle Power | 45 kW (60 hp) continuous ▲ | 22/15 kW (30/20 hp) |
| Main Spindle Speed | 3,000 rpm | 5,000 RPM ▲ |
| Milling Spindle Power | 22 kW (30 hp) | 22/18.5 kW (30/25 hp) |
| Milling Spindle Speed | 12,000 rpm | 12,000 RPM |
| B Axis Range | +/-120 degrees ▲ | -30° to +195° (225° swing, 0.001° increment) |
| Machine Weight | 18,000 kg (39,683 lb) approx ▲ | 12,500 kg (27,558 lb) |
| Price Range | $400,000 - $650,000 | $350,000 - $500,000 ▲ |
Advantages
Niles-Simmons N20 MC
- Superior main spindle power at 45 kW (60 hp) continuous vs 22/15 kW (30/20 hp)
- Superior b axis range at +/-120 degrees vs -30° to +195° (225° swing, 0.001° increment)
- Superior machine weight at 18,000 kg (39,683 lb) approx vs 12,500 kg (27,558 lb)
Okuma MULTUS B200II
- Superior main spindle speed at 5,000 RPM vs 3,000 rpm
- More competitive pricing at $350,000 - $500,000 compared to $400,000 - $650,000
- Backed by Okuma's dealer and service network for parts and support
- Aerospace job shops machining complex components requiring turning, milling, drilling, and angled features in a single setup
Verdict
This is a close matchup. The Niles-Simmons N20 MC and Okuma MULTUS B200II 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.