Nakamura-Tome Mill-Turn / Multi-Tasking Machines

Nakamura-Tome JX-250

Est. $550,000 - $850,000 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 (Ø80 mm（op.）: 3,500 rpm; Ø90 mm（op.）: 2,500 rpm)

Max Turn Length

1,650 mm (65 in) (Ø90 mm（op.）: 1,587 mm (62.5 in))

max turning diameter

320 mm (12.6 in)

main spindle power

18.5/15 kW (25/20 HP) (22/18.5 kW optional)

chuck size

8 in, 10 in, (12 in optional), (15 in optional) (Ø71 mm（op.）: 8 in, 10 in, (12 in optional))

b axis range

240 degrees (+/-120 degrees)

How much does the Nakamura-Tome JX-250 cost?

Estimated price range

Est.$550,000 - $850,000

Our best estimate for a mill-turn / multi-tasking machine in this class — not a quote from Nakamura-Tome. Configuration moves it a long way.

Overview

The Nakamura-Tome JX-250 is a B-axis turn-mill center for long work: 1,650 mm (65 in) of turning length, 320 mm (12.6 in) of turning diameter, a B-axis that swings through 240 degrees (+/-120 degrees) and a 40-tool magazine with 80 and 120 tools optional. The main spindle is a φ65 (A2-6) unit rated 18.5/15 kW (25/20 HP), running to 4,500 rpm and passing 65 mm (2.6 in) bar, with 22/18.5 kW available as an option.

The length is what this machine is for. With 1,650 mm (65 in) between the work ends, shafts, rolls and long hydraulic parts can be turned, milled and drilled at any angle without a second machine. Chucks run from 8 in and 10 in as standard to 12 in and 15 in as options. The table also lists an XY plane stroke of 250 mm square and Z crossover travel of R: 490 mm, L: 140 mm; ask Nakamura-Tome how these apply to your part before relying on them.

Larger bores are listed in steps: 71 mm (2.8 in), 80 mm (3.1 in) and 90 mm (3.5 in). The bigger the bore, the lower the speed: 3,500 rpm with the Ø80 mm option and 2,500 rpm with Ø90 mm, which also comes with an A2-8 nose and 22/18.5 kW and shortens turning length to 1,587 mm (62.5 in). The Ø71 mm option keeps chucks to 8 in, 10 in or 12 in.

Milling power is listed as 5.5/3.7 kW (7.4/5.0 HP) at 6,000 RPM. That is modest next to 18.5/15 kW of turning power, so heavy face milling and large drills should be checked against it. The machine is 5,578.5 × 3,257.7 × 2,954 mm (W × D × H); against the JX-200, listed at 1,058 mm (41.7 in) of turning length and 6,000 rpm, the JX-250 gives up spindle speed for length and larger chucks.

Full Specifications

Parameter	Value
Max Turning Diameter	320 mm (12.6 in)
Max Turning Length	1,650 mm (65 in) (Ø90 mm（op.）: 1,587 mm (62.5 in))
Main Spindle Power	18.5/15 kW (25/20 HP) (22/18.5 kW optional)
Chuck Size	8 in, 10 in, (12 in optional), (15 in optional) (Ø71 mm（op.）: 8 in, 10 in, (12 in optional))
B Axis Range	240 degrees (+/-120 degrees)
Milling Spindle Power	5.5/3.7 kW (7.4/5.0 HP)
Milling Spindle Speed	6,000 RPM
Xy Plane Stroke	250 mm square
Lr Z Crossover Travel	R: 490 mm, L: 140 mm
ATC Magazine	40 tools (80 / 120 optional)
Machine Height	2,954 mm (116.3 in)
Max Spindle Speed	4,500 rpm (Ø80 mm（op.）: 3,500 rpm; Ø90 mm（op.）: 2,500 rpm)
Standard	φ65(A2-6) 18.5/15kW
Op	φ90(A2-8) 22/18.5kW*2
Max Bar Capacity	65 mm (2.6 in) (Ø71 mm（op.）: 71 mm (2.8 in); Ø80 mm（op.）: 80 mm (3.1 in); Ø90 mm（op.）: 90 mm (3.5 in))
Floor Space Required	5,578.5 × 3,257.7 × 2,954 mm (W × D × H)

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

Strengths & Limitations

Strengths

1,650 mm (65 in) of turning length for long shafts and rolls
B-axis range of 240 degrees (+/-120 degrees) for angled holes and contours
40-tool magazine as standard, with 80 or 120 tools optional
Bar capacity options up to 90 mm (3.5 in), and chucks up to 15 in as an option
18.5/15 kW (25/20 HP) main spindle, 22/18.5 kW optional

Limitations

Milling power of 5.5/3.7 kW (7.4/5.0 HP) at 6,000 RPM limits heavy milling
Main spindle tops out at 4,500 rpm, and the Ø90 mm option drops it to 2,500 rpm
The Ø90 mm option shortens turning length to 1,587 mm (62.5 in)
Footprint of 5,578.5 × 3,257.7 mm and 2,954 mm of height needs a large bay

Best For

Shafts and long parts up to 1,650 mm (65 in) machined complete Angled drilling and milling with a 240 degree B-axis Large bar work up to 90 mm (3.5 in) with the bore option Large chucked parts on 10 in, 12 in or 15 in chucks

Frequently Asked Questions

01 What is the difference between the JX-250 and the JX-200?

The JX-250 turns 1,650 mm (65 in) long and 320 mm (12.6 in) in diameter, on chucks of 8 in and up, with a 4,500 rpm main spindle. The JX-200 is listed at 1,058 mm (41.7 in) of length, 6”, 8” chucks and a 6,000 rpm spindle. Pick the JX-250 for long and large parts, the JX-200 for faster spindle work on shorter ones.

02 How far does the JX-250 B-axis swivel?

The B-axis range is 240 degrees (+/-120 degrees). The table also lists an XY plane stroke of 250 mm square and Z crossover travel of R: 490 mm, L: 140 mm. The table does not explain these two rows further, so check them against a drawing of your part.

03 What bore and spindle options does the JX-250 have?

Standard is φ65 (A2-6), 65 mm (2.6 in) bar, 18.5/15 kW and 4,500 rpm. Bar capacity options are 71 mm (2.8 in), 80 mm (3.1 in) and 90 mm (3.5 in). The Ø80 mm option runs to 3,500 rpm; the Ø90 mm option runs to 2,500 rpm with an A2-8 nose and 22/18.5 kW, and turning length becomes 1,587 mm (62.5 in).

04 How many tools does the JX-250 hold?

The ATC magazine holds 40 tools as standard, with 80 or 120 tools optional. For long parts with many features, the larger magazines avoid stopping to swap tools between jobs.

05 How big is the JX-250?

It measures 5,578.5 × 3,257.7 × 2,954 mm (W × D × H), with a machine height of 2,954 mm (116.3 in). Check crane hook height and door openings for delivery as well as floor space.