Nakamura-Tome SC-300II
Image: nakamura-tome.com, Nakamura-Tome
Key Specifications
Y Travel
Z Travel
Max Spindle
Weight
Spindle Power
Max Turn Length
How much does the Nakamura-Tome SC-300II cost?
Estimated price range
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-300II is a heavy two-spindle turn-mill center for 10 in and 12 in chucks, with 360 mm (14.2 in) of turning diameter, 635 mm (25 in) of turning length and Z travel, and a ±60 mm (±2.36 in) Y-axis. The main spindle is rated 22 / 18.5 kW and runs to 3,500 rpm.
Mass is part of the specification here. At 9,000 kg (19,842 lb) on a 3,996 × 2,130 × 2,300 mm (W × D × H) footprint, the machine has the weight to absorb interrupted cuts on forgings and castings, the kind of work a 22 / 18.5 kW spindle at modest rpm is built for. It also means the floor has to be checked before delivery, and rigging needs planning.
Bar capacity is 71 mm (2.8 in) as standard, and the Ø89 mm option raises it to 89 mm (3.5 in). That option is the one to weigh if you buy bar rather than sawn blanks, because it moves a whole size class of shafts and bushings onto the bar feeder. The two spindles are 910 mm (35.8 in) apart, with 713.5 mm (28.1 in) between centers.
Off-center work is handled by a milling spindle rated 7.5 / 3.7 kW at up to 6,000 rpm, combined with the ±60 mm of Y. On parts this size that covers bolt-circle holes on flanges, keyways and wrench flats without a trip to a machining center. For longer work the SC-300IIL keeps the 360 mm (14.2 in) turning diameter and extends turning length to 1,135 mm (44.7 in).
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 360 mm (14.2 in) |
| Max Turning Length | 635 mm (25 in) |
| Max Spindle Speed | 3,500 rpm |
| Spindle Motor Power | 22 / 18.5 kW |
| Z-Axis Travel | 635 mm (25 in) |
| Y-Axis Travel | ±60 mm (±2.36 in) |
| Milling Spindle Speed | 6,000 rpm |
| Milling Spindle Power | 7.5 / 3.7 kW |
| Machine Weight | 9,000 kg (19,842 lb) |
| Distance Between Spindles | 910 mm (35.8 in) |
| Distance Between Centers | 713.5 mm (28.1 in) |
| Max Bar Capacity | 71 mm (2.8 in) (Ø89 mm option: 89 mm (3.5 in)) |
| Chuck Size | 10 in, 12 in |
| Floor Space Required | 3,996 × 2,130 × 2,300 mm (W × D × H) |
Specifications sourced from nakamura-tome.com — verified 2026-10-03
Strengths & Limitations
Strengths
- ±60 mm (±2.36 in) Y-axis with a 7.5 / 3.7 kW milling spindle at up to 6,000 rpm
- 22 / 18.5 kW main spindle sized for 10 in and 12 in chucks
- Bar capacity of 71 mm (2.8 in), or 89 mm (3.5 in) with the Ø89 mm option
- 9,000 kg (19,842 lb) of machine mass to damp interrupted cuts
- 635 mm (25 in) of turning length, with 910 mm (35.8 in) between spindles
Limitations
- 3,500 rpm maximum limits small-diameter work
- At 9,000 kg (19,842 lb), floor loading and rigging have to be checked before installation
- Turning length stops at 635 mm (25 in); the SC-300IIL reaches 1,135 mm (44.7 in)
- Milling spindle of 7.5 / 3.7 kW is light next to the 22 / 18.5 kW turning spindle
Best For
Frequently Asked Questions
01
635 mm (25 in), with 713.5 mm (28.1 in) between centers and 910 mm (35.8 in) between spindles. For longer work the SC-300IIL turns up to 1,135 mm (44.7 in) with the same 360 mm (14.2 in) turning diameter.
02
±60 mm (±2.36 in). With the 7.5 / 3.7 kW milling spindle at up to 6,000 rpm, that covers off-center holes, keyways and flats on the larger parts this machine is sized for.
03
71 mm (2.8 in) as standard. The Ø89 mm option raises it to 89 mm (3.5 in), which matters for shops feeding larger bar stock instead of loading sawn blanks by hand or robot.
04
9,000 kg (19,842 lb), on a 3,996 × 2,130 × 2,300 mm (W × D × H) footprint. Check floor loading, the delivery route and rigging access before the machine arrives.
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