Machine Comparison
Nakamura-Tome NTJ-100 vs Nakamura-Tome NTX 2500
Nakamura-Tome vs Nakamura-Tome · Mill-Turn Machines
Summary
The Nakamura-Tome NTJ-100 and Nakamura-Tome NTX 2500 are both from Nakamura-Tome's mill-turn machines lineup, making this a common upgrade or lineup decision for shops already invested in the Nakamura-Tome ecosystem. The Nakamura-Tome NTX 2500 shows specification advantages in 6 categories, though the Nakamura-Tome NTJ-100 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 mill-turn machine.
Specifications Comparison
| Specification | Nakamura-Tome NTJ-100 | Nakamura-Tome NTX 2500 |
|---|---|---|
| Rapid Traverse | 30 m/min (1,181 ipm) | 30 m/min (1,181 ipm) |
| Max Turning Diameter | 200 mm (7.87 in) | 660 mm (26 in) ▲ |
| Max Turning Length | 550 mm (21.65 in) | 795 mm (31.3 in) ▲ |
| Control | Fanuc 31i-B5 | Fanuc 31i-B5 |
| Max Bar Capacity | 51 mm (2.0 in) | 80 mm (3.15 in) ▲ |
| Main Spindle Speed | 5,000 RPM ▲ | 3,500 RPM |
| Main Spindle Power | 15 kW (20 HP) | 22 kW (30 hp) ▲ |
| Sub Spindle Speed | 5,000 RPM ▲ | 4,500 RPM |
| Sub Spindle Power | 15 kW (20 HP) | 15 kW (20 hp) |
| C Axis | Both spindles | Main and sub-spindle |
| Milling Spindle Power | 7.5 kW (10 HP) | 11 kW (15 hp) ▲ |
| Milling Spindle Speed | 12,000 RPM | 12,000 RPM |
| Machine Weight | 7,000 kg (15,432 lb) approx. | 12,000 kg (26,455 lb) approx. ▲ |
| Price Range | $400,000 - $600,000 (new) ▲ | $500,000 - $750,000 |
Advantages
Nakamura-Tome NTJ-100
- Superior main spindle speed at 5,000 RPM vs 3,500 RPM
- Superior sub spindle speed at 5,000 RPM vs 4,500 RPM
- More competitive pricing at $400,000 - $600,000 (new) compared to $500,000 - $750,000
Nakamura-Tome NTX 2500
- Superior max turning diameter at 660 mm (26 in) vs 200 mm (7.87 in)
- Superior max turning length at 795 mm (31.3 in) vs 550 mm (21.65 in)
- Superior max bar capacity at 80 mm (3.15 in) vs 51 mm (2.0 in)
- Superior main spindle power at 22 kW (30 hp) vs 15 kW (20 HP)
- Superior milling spindle power at 11 kW (15 hp) vs 7.5 kW (10 HP)
Verdict
The Nakamura-Tome NTX 2500 edges ahead on specifications in this comparison, particularly in Max Turning Diameter and Max Turning Length. However, the Nakamura-Tome NTJ-100 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.