Nakamura-Tome SC-300IIL
Key Specifications
Y Travel
Max Spindle
Spindle Power
Max Turn Length
chuck size
max turning diameter
Overview
The Nakamura-Tome SC-300IIL is the long-bed variant of the SC-300II platform, designed for machining longer workpieces with a maximum turning length of 1,135 mm (44.69 in) from the right spindle and 1,100 mm (43.31 in) with tailstock. The distance between spindles extends to 1,310 mm, providing generous capacity for shaft-type components, long bar work, and extended turned parts that exceed the standard SC-300II's envelope. This machine targets production environments where complete machining of longer parts in a single setup eliminates secondary operations and re-chucking accuracy losses.
The main spindle delivers 22/18.5 kW (29.5/24.8 hp) at speeds up to 3,500 RPM through a robust built-up spindle design. The SC-300IIL accepts either 10-inch or 12-inch chucks and handles bar stock up to 71 mm (2.80 in) standard or 89 mm (3.50 in) with the optional bore. Maximum turning diameter is 360 mm (14.17 in), matching the standard SC-300II. The milling spindle reaches 6,000 RPM with 7.5/3.7 kW (10/5 hp) power, enabling cross-drilling, flat milling, and keyway cutting without moving parts to a second machine.
The SC-300IIL features Y-axis travel of +/-60 mm (+/-2.36 in) for off-center milling operations and can be configured with an NC steady rest with automatic tailstock, NC tailstock, or NC sub-spindle depending on the application. The box-way slide construction on all axes delivers the rigidity needed for interrupted cuts and heavy stock removal on longer workpieces where vibration control is critical. Nakamura-Tome's thermal symmetry design is particularly important on the extended bed, ensuring uniform thermal expansion along the full Z-axis length.
The SC-300IIL runs on FANUC 0i-TF Plus control and is distributed in North America through Methods Machine Tools. Floor space requirements are 4,902 mm width x 2,130 mm depth x 2,300 mm height. The machine competes with the Mazak Quick Turn 350MY, DMG Mori NLX 3000/1250, and Okuma LB4000 EX II in the long-bed multi-tasking turning center segment. New machines price between $280,000 and $380,000 depending on sub-spindle, steady rest, and automation configuration.
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 10″,12″ |
| Max Turning Diameter | 360mm |
| Max Turning Length Right Spindle | 1,135 mm (44.69 in) |
| Max Turning Length Tailstock | 1,100 mm (43.31 in) |
| Distance Between Spindles | 1,310mm |
| Bar Capacity | 71mm |
| Max Spindle Speed | 3,500 RPM |
| Spindle Motor Power | 22/18.5 kW (29.5/24.8 hp) |
| Milling Spindle Speed | 6,000min-1 |
| Milling Spindle Power | 7.5/3.7 kW (10/5 hp) |
| Y-Axis Travel | +/- 60 mm (+/- 2.36 in) |
| Turret Stations | 12 |
| CNC Control | FANUC 0i-TF Plus |
| Floor Space | height:2,300mm / width:4,902mm / depth:2,130mm |
| Machine Weight | 10,500 kg (23,149 lb) |
| Max Turning Length | 1,100mm |
| Distance Between Centers | 1,213.5mm |
| L Spindle Speed | 3,500min-1 |
| L Spindle Drive Motor | 22/18.5kW |
| Milling Drive Motor | 7.5/3.7kW |
Specifications sourced from nakamura-tome.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 1,135 mm maximum turning length handles long shaft-type parts that exceed most mid-size lathes, eliminating the need to upsize to a larger machine class
- Configurable with NC steady rest, tailstock, or sub-spindle to match specific application requirements for long-part support and back-end machining
- 6,000 RPM milling spindle with 7.5 kW power provides genuine secondary machining capability for cross-holes, flats, and keyways
- Box-way construction on all axes delivers superior rigidity for interrupted cuts and heavy stock removal on longer workpieces
- Y-axis travel of +/-60 mm enables off-center milling operations that would otherwise require a second setup on a VMC
- Nakamura-Tome's thermal symmetry design prevents geometric distortion along the extended bed during multi-shift production
Limitations
- 3,500 RPM maximum spindle speed is lower than the standard SC-300II's 6,000 RPM, limiting high-speed finishing on smaller diameter work
- Large footprint of nearly 5 meters width requires significant floor space commitment compared to standard-length turning centers
- Price point of $280K-$380K requires consistent long-part work to justify over a standard-length SC-300II at lower cost
- Methods Machine Tools distribution network is smaller than Mazak or Okuma for service coverage in some regions
Best For
Frequently Asked Questions
01
New SC-300IIL machines price between $280,000 and $380,000 depending on configuration. The base machine with tailstock starts around $280,000. Adding a sub-spindle, NC steady rest, expanded live tooling, and bar feeder integration pushes toward $380,000. Used SC-300 series long-bed machines from 2018-2022 trade between $160,000 and $240,000.
02
The SC-300IIL extends the distance between spindles to 1,310 mm, providing a maximum turning length of 1,135 mm compared to the standard SC-300II's 635 mm. The longer bed accommodates shaft-type parts and extended components. The trade-off is a larger footprint, higher price, and slightly lower spindle speed (3,500 vs 6,000 RPM) due to the larger spindle bore option.
03
The SC-300IIL can be configured with an NC steady rest with automatic tailstock, NC tailstock alone, or NC sub-spindle. The configuration is selected at order time based on the application. Shops primarily machining long slender shafts typically choose the steady rest option, while shops needing back-end machining choose the sub-spindle.
04
Standard bar capacity is 71 mm (2.80 in), with an optional larger bore providing 89 mm (3.50 in) bar capacity. The larger bore option is recommended for shops regularly running bar stock over 65 mm diameter. Note that the larger bore option may reduce maximum spindle speed.
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