Nakamura-Tome Mill-Turn / Multi-Tasking Machines

Nakamura-Tome NTRX-300L

Est. $450,000 - $650,000 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 (Ø71 mm option: 3,500 rpm; Ø80 mmB option: 2,500 rpm)

Spindle Power

15 / 11 kW, 22 / 18.5 kW(optional) (Ø80 mmA option: 22 / 18.5 kW(optional))

Max Turn Length

1,600 mm (63 in)

max turning diameter

640 mm (25.2 in)

b axis range

240 deg (+/-120 deg)

atc magazine

40 tools (60/80/120 optional)

How much does the Nakamura-Tome NTRX-300L cost?

Estimated price range

Est.$450,000 - $650,000

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 NTRX-300L is the longer sibling of the NTRX-300, keeping the same 640 mm (25.2 in) turning diameter and extending turning length to 1,600 mm (63 in). Its milling head swivels through a B-axis range of 240 deg (+/-120 deg) and draws from a 40-tool ATC magazine, with 60, 80 or 120 tools available as options. The L spindle runs to 4,500 rpm on 15/11 kW, or 22/18.5 kW as an option; the R spindle runs to 2,500 rpm.

The extra length is the reason to choose it. The NTRX-300 stops at 1,100 mm (43.3 in) of turning length, so shafts, rolls and long housings beyond that need this machine. The cost in floor space is width: the NTRX-300L is 5,440 mm wide against 4,529 mm for the NTRX-300, with the same 2,670 mm depth and 2,615 mm height.

Long parts often have deep features, and a long-tool ATC is offered for them as an option, holding 3 tools listed at 65mm x 450mm. That reach matters for deep bores and long drilled holes in the end of a shaft, where a standard holder runs short of reach.

Chucks are 8 in or 10 in, with 12 in and 15 in and up as options. Bar capacity is 65 mm (2.6 in) as standard and up to 90 mm (3.5 in) on the L spindle with the largest bore option; bigger bores cut L-spindle speed to 3,500 rpm (Ø71 mm option) or 2,500 rpm (Ø80 mmB option). With the R spindle limited to 2,500 rpm, second-operation work on small diameters runs at lower surface speed than the first.

Full Specifications

Parameter	Value
Max Turning Diameter	640 mm (25.2 in)
Max Turning Length	1,600 mm (63 in)
B Axis Range	240 deg (+/-120 deg)
ATC Magazine	40 tools (60/80/120 optional)
Long Tool ATC	Optional, 3 tools (65mm x 450mm)
Chuck Size	8 in, 10 in, (12 in optional), (15 in~ optional)
L Spindle Speed	4,500min-1
R Spindle Speed	2,500min-1
L Spindle Drive Motor	15/11kW, 22/18.5kW(op.)
Max Bar Capacity	65 mm (2.6 in) (Ø71 mm option: 71 mm (2.8 in); Ø80 mmA option: 80 mm (3.1 in); Ø90 mm option: 90 mm (3.5 in)(Only L))
Max Spindle Speed	4,500 rpm (Ø71 mm option: 3,500 rpm; Ø80 mmB option: 2,500 rpm)
Sub Spindle Speed	2,500 rpm
Spindle Motor Power	15 / 11 kW, 22 / 18.5 kW(optional) (Ø80 mmA option: 22 / 18.5 kW(optional))
Floor Space Required	5,440 × 2,670 × 2,615 mm (W × D × H)

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

Strengths & Limitations

Strengths

1,600 mm (63 in) of turning length with a 640 mm (25.2 in) turning diameter
B-axis range of 240 deg (+/-120 deg) for angled holes and faces
40-tool ATC as standard, with 60, 80 or 120 tools optional
Optional long-tool ATC for 3 tools of 65mm x 450mm, for deep bores in long parts
Bar capacity up to 90 mm (3.5 in) on the L spindle with the option

Limitations

R spindle runs to only 2,500 rpm, against 4,500 rpm on the L spindle
Long-tool ATC is an option, not standard
5,440 mm of width needs a large bay; the NTRX-300 is 4,529 mm wide
Larger bores reduce L-spindle speed to 3,500 rpm or 2,500 rpm

Best For

Long shafts and rolls up to 1,600 mm (63 in) machined complete Deep bores and long holes with the optional long-tool ATC Large-diameter parts up to 640 mm (25.2 in) with angled features Heavy bar work up to 90 mm (3.5 in) on the L spindle

Frequently Asked Questions

01 What is the difference between the NTRX-300L and the NTRX-300?

Turning length and width. The NTRX-300L turns 1,600 mm (63 in) long and is 5,440 mm wide. The NTRX-300 turns 1,100 mm (43.3 in) long and is 4,529 mm wide. Both are listed at 640 mm (25.2 in) of turning diameter and a 4,500 rpm main spindle.

02 What is the long-tool ATC on the NTRX-300L?

An optional magazine for 3 long tools, listed at 65mm x 450mm. It is meant for deep bores and long holes that a standard holder cannot reach, which are common on the long parts this machine is built for.

03 How many tools does the NTRX-300L hold?

The ATC magazine holds 40 tools as standard, with 60, 80 or 120 optional, plus the optional long-tool ATC for 3 tools. The B-axis swivels through 240 deg (+/-120 deg).

04 How fast are the NTRX-300L spindles?

The L spindle runs to 4,500 rpm on 15/11 kW, with 22/18.5 kW optional; larger bore options lower it to 3,500 rpm or 2,500 rpm. The R spindle runs to 2,500 rpm, so plan small-diameter finishing on the L side.