Nakamura-Tome CNC Lathes / Turning Centers

Nakamura-Tome WT-250II

Est. $300,000 - $475,000 Specs verified 2026-10-03 · nakamura-tome.com Updated 2026-10-03

Image: nakamura-tome.com, Nakamura-Tome

Key Specifications

Max Spindle

4,500 rpm

Tool Capacity

Up to 48

Spindle Power

18.5 / 15 kW / 35 / 26 / 22 kW(optional) / Wide range 15 / 11 kW(optional)

Max Turn Length

555 mm (21.9 in)

max turning diameter

250 mm (9.8 in)

left spindle

18.5/15 kW at 4,500 RPM (35/26/22 opt)

How much does the Nakamura-Tome WT-250II cost?

Estimated price range

Est.$300,000 - $475,000

Our best estimate for a cnc lathes / turning center in this class — not a quote from Nakamura-Tome. Configuration moves it a long way.

Overview

The Nakamura-Tome WT-250II is a two-spindle turning center with upper and lower turrets, built for parts up to 250 mm (9.8 in) in diameter and 555 mm (21.9 in) long. Its left spindle is rated 18.5/15 kW at 4,500 rpm and its right spindle 11/7.5 kW at 5,000 rpm, and Nakamura-Tome quotes 29.5 kW when the two run synchronized. Chucks are listed as 8 in / 6 in, and tool capacity as up to 48.

The spindle choice is where this machine is configured. On the left side the standard 18.5/15 kW motor can be replaced by an optional 35/26/22 kW unit for heavy stock removal, or by a wide-range 15/11 kW motor. The right spindle starts at 11/7.5 kW and can be ordered at 15/11 kW or 18.5/15 kW, so a buyer who does as much cutting in the second operation as in the first can bring the right side up to the left side's standard rating.

Bar capacity follows the same pattern. The left spindle passes 65 mm (2.6 in) bar. The right spindle takes 51 mm (2 in) as standard; its Ø65 mm option opens it to 65 mm (2.6 in) at the cost of a lower top speed, 4,500 rpm instead of 5,000 rpm. If finished parts are longer than the chuck can hold and must pass back through the right spindle, that bore decides what fits.

Driven tools are rated 5.5/3.7 kW. The table lists no Y-axis stroke, so off-centre holes and flats should be checked with Nakamura-Tome before ordering. The machine occupies 4,059 × 2,314 × 2,225 mm (W × D × H). Against the WT-150II, which is listed at 190 mm (7.5 in) of turning diameter and 515 mm (20.3 in) of length with a 15/11 kW spindle, the WT-250II is the step up in diameter, length and spindle power.

Full Specifications

Parameter	Value
Max Turning Diameter	250 mm (9.8 in)
Max Turning Length	555 mm (21.9 in)
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
Chuck Size	8 in / 6 in
R Spindle Speed	5,000min-1
R Spindle Drive Motor	11/7.5kW, 15/11kW(op.), 18.5/15kW(op.)
Max Bar Capacity	65 mm (2.6 in)
Sub Spindle Bar Capacity	51 mm (2 in) (Ø65 mm: 65 mm (2.6 in)(op.))
Max Spindle Speed	4,500 rpm
Spindle Motor Power	18.5 / 15 kW / 35 / 26 / 22 kW(optional) / Wide range 15 / 11 kW(optional)
Sub Spindle Speed	5,000 rpm (Ø65 mm: 4,500 rpm(op.))
Sub Spindle Power	11 / 7.5 kW, 15 / 11 kW(optional), 18.5 / 15 kW(optional)
Floor Space Required	4,059 × 2,314 × 2,225 mm (W × D × H)

Specifications sourced from nakamura-tome.com — verified 2026-10-03

Strengths & Limitations

Strengths

Left spindle rated 18.5/15 kW at 4,500 rpm, with an optional 35/26/22 kW motor for heavy roughing
Right spindle can be ordered at 11/7.5 kW, 15/11 kW or 18.5/15 kW, so the second operation need not be the weak side
29.5 kW combined output when both spindles run synchronized
65 mm (2.6 in) bar on the left spindle, and a Ø65 mm option that gives the right spindle the same 65 mm (2.6 in) bore
Upper and lower turrets with up to 48 tools and a 5.5/3.7 kW milling drive

Limitations

The standard right spindle passes only 51 mm (2 in) bar; matching the left side takes the Ø65 mm option, which lowers it to 4,500 rpm
A 4,500 rpm left spindle is slow for small diameters; the WT-100 reaches 6,000 rpm
No Y-axis stroke appears in the table, so off-centre milling and drilling need to be confirmed before ordering
Floor space of 4,059 × 2,314 mm and 2,225 mm of height, before a bar feeder is added

Best For

Bar parts up to 65 mm (2.6 in) finished on both ends in one cycle Flanges, hubs and shafts up to 250 mm (9.8 in) in diameter Heavy first operations with the optional 35/26/22 kW left spindle Turned parts with light cross-drilling and milling at 5.5/3.7 kW

Frequently Asked Questions

01 How does the WT-250II differ from the WT-150II?

The WT-250II turns up to 250 mm (9.8 in) in diameter and 555 mm (21.9 in) in length, with an 18.5/15 kW left spindle at 4,500 rpm and 65 mm (2.6 in) bar capacity. The WT-150II is listed at 190 mm (7.5 in) and 515 mm (20.3 in), with a 15/11 kW spindle at 5,000 rpm. The WT-250II is the choice for larger diameters and heavier cuts; the WT-150II spins faster.

02 What bar sizes do the two spindles take?

The left spindle takes bar up to 65 mm (2.6 in). The right spindle takes 51 mm (2 in) as standard. With the Ø65 mm option the right spindle also passes 65 mm (2.6 in), but its top speed drops from 5,000 rpm to 4,500 rpm.

03 Which spindle motors can be specified?

Left spindle: 18.5/15 kW standard, with an optional 35/26/22 kW motor or an optional wide-range 15/11 kW motor. Right spindle: 11/7.5 kW standard, with 15/11 kW and 18.5/15 kW listed as options. With both spindles synchronized the table gives 29.5 kW.

04 Can the WT-250II mill and drill?

Yes, it has a 5.5/3.7 kW milling drive for driven tools on its upper and lower turrets, with up to 48 tools listed. The table gives no Y-axis stroke, so ask Nakamura-Tome whether the features you need off the spindle centreline can be reached before you commit.

05 How much floor space does the WT-250II need?

The machine measures 4,059 × 2,314 × 2,225 mm (W × D × H). Add the length of any bar feeder behind the left spindle and room to open the doors and service the turrets when you plan the layout.