Nakamura-Tome Super NTJ
Key Specifications
Max Spindle
Tool Capacity
Max Turn Length
max turning diameter
bar capacity left
bar capacity right
Overview
The Nakamura-Tome Super NTJ is a twin-spindle mill-turn machine with a 182-degree swiveling B-axis turret bridging the gap between conventional twin-turret turning and full B-axis multitasking. The B-axis swivel enables angled holes, compound surfaces, and off-axis milling standard fixed turrets cannot produce.
Left spindle: 15/11 kW at 4,500 RPM, 65 mm bar. Right sub-spindle: 11/7.5 kW at 5,000 RPM, 51 mm bar (optional). Both accept 6-inch chucks (8-inch optional). Y-axis 90 mm, milling at 6,000 RPM with 5.5/3.7 kW. Up to 48 tools.
Max turning diameter 190 mm, 620 mm length. Distance 210-970 mm. Compact 3,660 x 2,320 mm. Fanuc 31i-B5. New machines $300,000-$450,000.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 190mm |
| Max Turning Length | 620mm |
| Bar Capacity Left | 65 mm |
| Bar Capacity Right | 51 mm optional |
| Left Spindle Speed | 4,500 RPM |
| Left Spindle Power | 15/11 kW |
| Right Spindle Speed | 5,000 RPM |
| Right Spindle Power | 11/7.5 kW |
| B Axis Range | 182 deg |
| Y Axis Travel | 90 mm |
| Milling Speed | 6,000 RPM |
| Milling Power | 5.5/3.7 kW |
| Tool Capacity | Up to 48 stations |
| Distance Between Spindles | max.970mm/min.210mm |
| Chuck Size | 6″,(8″*1) |
| CNC Control | Fanuc 31i-B5 |
| Floor Space | height:2,170mm / width:3,660mm / depth:2,320mm |
| L Bar Capacity | 65mm |
| Max Spindle Speed | 4,500min-1 |
| L Spindle Drive Motor | 15/11kW |
| R Spindle Drive Motor | 11/7.5kW |
Specifications sourced from nakamura-tome.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 182-degree B-axis swivel enables angled holes and off-axis machining
- More affordable than ATC multitasking while providing B-axis
- Twin-spindle with synchronized transfer for complete machining
- 90 mm Y-axis for flats, keyways, eccentric features
- Compact 3,660 x 2,320 mm footprint
- Up to 48 tool stations
Limitations
- 190 mm max turning limits to small-medium parts
- 5.5/3.7 kW milling for light milling only
- 6,000 RPM milling lower than ATC machines
- 65 mm bar capacity is moderate
Best For
Frequently Asked Questions
01
Start $300,000. With right sub-spindle, Y-axis, bar feeder: $375,000-$450,000.
02
NTJX adds dedicated B-axis milling spindle for five-channel machining. Super NTJ uses swiveling turret -- simpler, more affordable.
03
Upper turret rotates 182 degrees for compound-angle tool approach.
04
Yes, 65 mm bar through left spindle for lights-out production.
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