Nakamura-Tome CNC Lathes / Turning Centers

Nakamura-Tome SC-300

Est. $220,000 – $340,000 Specs verified 2026-10-03 · nakamura-tome.com Updated 2026-10-03

Key Specifications

max chuck size

12 inch (305 mm)

main spindle speed

3,500 rpm

turret stations

driven tool power

3.7 kW

distance between spindles

910mm

distance between centers

713.5mm

How much does the Nakamura-Tome SC-300 cost?

Estimated price range

Est.$220,000 – $340,000

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 SC-300 is a 12-station turret lathe with two spindles set 910mm apart, built around 10″ or 12″ chucks and 71mm bar. Its left spindle runs to 3,500 rpm on a 22/18.5kW drive motor, and its driven tools are rated 7.5/3.7kW at up to 6,000 rpm.

On the rows this page lists, the SC-300 matches the SC-300II: the same 3,500 rpm and 22 / 18.5 kW main spindle and the same 10 in, 12 in chuck sizes. The SC-300II table goes further, with a 360 mm (14.2 in) turning diameter, 635 mm (25 in) of turning length and a ±60 mm (±2.36 in) Y-axis. If you are comparing a machine offered as an SC-300 against those figures, check the nameplate and confirm the Y-axis is fitted, because this table does not list it.

The spindle layout shapes the work. With 713.5mm between centers and 910mm between the two spindles, a part can be turned on the left spindle, handed to the right one and finished on its back face without leaving the machine. The 22/18.5kW drive at 3,500 rpm is a low-speed, high-power combination that suits steel parts in the larger chuck, where surface speed is reached at modest rpm.

The maximum chuck size is given as 12 inch (305 mm), so a 12″ chuck is the ceiling rather than a step to something larger. The machine occupies a width of 3,996mm, a depth of 2,130mm and a height of 2,300mm. Leave room at the left end for a bar feeder if the 71mm bar capacity will be used.

Full Specifications

Parameter	Value
Max Chuck Size	12 inch (305 mm)
Main Spindle Speed	3,500 rpm
Turret Stations	12
Driven Tool Power	3.7 kW
Distance Between Spindles	910mm
Distance Between Centers	713.5mm
Bar Capacity	71mm
Chuck Size	10″,12″
L Spindle Speed	3,500min-1
L Spindle Drive Motor	22/18.5kW
Milling Spindle Speed	6,000min-1
Milling Drive Motor	7.5/3.7kW
Floor Space	height:2,300mm / width:3,996mm / depth:2,130mm

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

Strengths & Limitations

Strengths

Two spindles 910mm apart, with 713.5mm between centers, for turning both ends of a part in one cycle
Left spindle on a 22/18.5kW drive motor for heavy turning in 10″ or 12″ chucks
Driven tools rated 7.5/3.7kW at up to 6,000 rpm
71mm bar capacity alongside chucked work
12-station turret serving both turning and the driven tools

Limitations

Main spindle limited to 3,500 rpm, which caps surface speed on small diameters
This table gives no turning diameter, turning length or Y-axis figure; the SC-300II lists 360 mm (14.2 in), 635 mm (25 in) and ±60 mm (±2.36 in)
Chuck size tops out at 12 inch (305 mm)
Needs a floor area of 3,996mm by 2,130mm and 2,300mm of height

Best For

Chucked steel parts in 10″ or 12″ chucks Bar-fed parts up to 71mm in diameter Two-sided parts transferred between spindles Heavy turning at low spindle speed

Frequently Asked Questions

01 How does the SC-300 compare with the SC-300II?

On the rows both tables share, they agree: 3,500 rpm and 22 / 18.5 kW on the main spindle, 10 in and 12 in chucks, 910 mm between spindles, 713.5 mm between centers and 71 mm bar. The SC-300II table adds a 360 mm (14.2 in) turning diameter, 635 mm (25 in) of turning length and ±60 mm (±2.36 in) of Y.

02 What milling power do the SC-300's driven tools have?

The milling drive motor is listed at 7.5/3.7kW with a top speed of 6,000 rpm. That is enough for drilling, tapping and moderate milling on turned parts; large pockets and heavy face milling belong on a machine with a stronger tool spindle.

03 What chuck sizes fit the SC-300?

10″ and 12″ chucks are listed, and the maximum chuck size is given as 12 inch (305 mm). Bar capacity is 71mm, so bar-fed parts and large chucked parts can share the same machine.

04 How much floor space does the SC-300 need?

The table gives a width of 3,996mm, a depth of 2,130mm and a height of 2,300mm. Add room for a bar feeder at the left spindle, for the chip conveyor and for opening the guards during setup.