Nakamura-Tome SC-100X2
Key Specifications
Max Turn Length
max turning diameter
chuck size left
chuck size right
bar capacity left
bar capacity right
Overview
The Nakamura-Tome SC-100X2 is a dual-spindle, single-turret CNC lathe designed for high-speed production of small parts with complete front-and-back machining in a single cycle. The X2 designation indicates the twin-spindle configuration where the left and right spindles work with a shared turret to achieve overlapping machining operations -- claimed by Nakamura-Tome to be 41% faster than the standard SC-100.
The machine handles a maximum turning diameter of 195 mm (7.7 in) with a maximum turning length of 400 mm (15.7 in). The left spindle uses a 6-inch chuck with 51 mm bar capacity, while the right spindle has a 5-inch chuck (6-inch optional) with 42 mm bar capacity. Maximum distance between spindles is 600 mm with 200 mm of travel.
The left spindle delivers 11/7.5 kW (15/10 hp) at 6,000 RPM, and the right spindle provides 7.5/5.5 kW (10/7.4 hp) at 6,000 RPM. Both spindles run at 6,000 RPM for efficient processing of smaller components. The milling motor provides 7.1/2.2 kW at up to 6,000 RPM.
The machine features standard oscillation cutting capability for improved chip breaking on difficult materials. Simultaneous machining through overlapping control between spindles enables the left spindle to begin the next part while the right spindle finishes the current one, dramatically improving throughput.
Axis travel on the right spindle is 150 mm (X) and 200 mm (Z), with 80 mm Y-axis stroke (+/-40 mm). Machine dimensions are 1,799 x 3,072 x 1,974 mm.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 195mm |
| Max Turning Length | 400mm |
| Chuck Size Left | 6 inch |
| Chuck Size Right | 5 inch (6 inch optional) |
| Bar Capacity Left | 51 mm |
| Bar Capacity Right | 42 mm |
| Spindle Speed Left | 6,000 RPM |
| Spindle Power Left | 11/7.5 kW (15/10 hp) |
| Spindle Speed Right | 6,000 RPM |
| Spindle Power Right | 7.5/5.5 kW (10/7.4 hp) |
| Milling Motor | 7.1/2.2 kW at 6,000 RPM |
| Travel X Right | 150 mm (5.9 in) |
| Travel Z Right | 200 mm (7.9 in) |
| Y Axis Stroke | 80 mm (+/-40 mm) |
| Distance Between Spindles | max. 600mm/min. 200mm |
| Machine Dimensions | 1,799 x 3,072 x 1,974 mm (71 x 121 x 78 in) |
| CNC Control | FANUC 0i-TF Plus |
| L R Bar Capacity | 51mm/42mm |
| L R Chuck Size | 6″/5″(6″) |
| L R Spindle Speed | 6,000min-1/6,000min-1 |
| L R Spindle Drive Motor | 11/7.5kW / 7.5/5.5kW |
| X Slide Travel On R Spindle | 150mm |
| Z Slide Travel On R Spindle | 400mm |
| Floor Space | height:1,799mm / width:3,072mm / depth:1,973.7mm |
Specifications sourced from nakamura-tome.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Dual-spindle overlapping control achieves 41% faster cycle times than the standard SC-100
- 6,000 RPM on both spindles provides high-speed capability for small part production
- Complete front-and-back machining eliminates re-chucking and secondary operations
- Standard oscillation cutting improves chip breaking on difficult materials like stainless and titanium
- 7.1 kW milling motor with Y-axis enables genuine off-center milling operations
- Simultaneous machining lets the left spindle start the next part while the right spindle finishes
Limitations
- 195 mm maximum turning diameter limits the machine to small parts
- Single turret shared between two spindles requires careful tooling layout and programming
- Dual-spindle programming complexity is higher than single-spindle machines
- 3,072 mm width is wider than single-spindle alternatives
Best For
Frequently Asked Questions
01
The overlapping control system allows the left spindle to begin machining the next part while the right spindle finishes the current part. This parallel operation eliminates the dead time between parts that exists in sequential single-spindle machines.
02
The SC-100X2 adds a second spindle with overlapping control for simultaneous machining. The standard SC-100 is a single-spindle machine with optional sub-spindle. The X2 is designed for higher throughput on parts requiring both-end machining.
03
Oscillation cutting is a standard feature that programs controlled oscillation of the cutting tool during turning to break chips into manageable lengths. This is particularly effective on materials like stainless steel and titanium that produce long, stringy chips.
04
Yes. The overlapping control enables simultaneous machining on both spindles using the shared turret, with the control automatically managing tool allocation and timing between operations.
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