Nakamura-Tome WT-250II
Key Specifications
Tool Capacity
Max Turn Length
max turning diameter
bar capacity left
bar capacity right
left spindle
Overview
The Nakamura-Tome WT-250II is a twin-spindle, twin-turret CNC turning center between the WT-150II and WT-300, offering 250 mm turning diameter, 555 mm length, 65 mm bar. Left: 18.5/15 kW at 4,500 RPM (35/26/22 kW opt). Right: 11/7.5 kW at 5,000 RPM (up to 18.5/15 kW). Combined synchronized power 29.5 kW. Right spindle upgradeable to 65 mm. Both turrets with driven tools at 5.5/3.7 kW, up to 48 stations. 8-in left / 6-in right. Distance 265-885 mm.
Compact 4,059 x 2,314 mm. New machines $300,000-$475,000.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 250mm |
| Max Turning Length | 555mm |
| Bar Capacity Left | 65 mm |
| Bar Capacity Right | 51 mm std (65 opt) |
| Left Spindle | 18.5/15 kW at 4,500 RPM (35/26/22 opt) |
| Right Spindle | 11/7.5 kW at 5,000 RPM |
| Combined Power | 29.5 kW synchronized |
| Turrets | Upper and lower |
| Tool Capacity | Up to 48 |
| Milling Power | 5.5/3.7 kW |
| Between Spindles | 885/265 mm |
| Chuck Size | 8″ / 6″ |
| CNC Control | Fanuc 31i-B5 |
| Floor Space | height:2,225mm / width:4,059mm / depth:2,314mm |
| Distance Between Spindles | max.885mm/min.265mm(L:Φ65/R:Φ51)max.870mm/min.250mm(L:Φ65/R:Φ65) |
| R Bar Capacity | 51mm |
| R Spindle Speed | 5,000min-1 |
| R Spindle Drive Motor | 11/7.5kW, 15/11kW(op.), 18.5/15kW(op.) |
Specifications sourced from nakamura-tome.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 65 mm bar, 250 mm turning mid-size sweet spot
- 35/26/22 kW optional spindle for roughing
- 29.5 kW synchronized for shaft work
- Twin-turret simultaneous cutting
- Compact footprint
- 48 tool stations with driven tools
Limitations
- Milling motors adequate but not aggressive
- 555 mm shorter than WT-300
- 65 mm right requires upgrade
- Smaller NA service network
Best For
Frequently Asked Questions
01
$300,000-$475,000 new.
02
WT-300 has 270 mm, 780 mm, Y-axis. WT-250II more compact and affordable.
03
Yes with optional right upgrade.
04
29.5 kW combined for between-centers shaft work.
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