Nakamura-Tome AS-200L

$130,000 – $210,000 Updated 2026-03-17

Key Specifications

Max. bar diameter

20 mm

Max. machining length

200 mm

Main spindle speed

10,000 rpm

Main spindle power

3.7 kW

Main spindle torque

7 Nm

Counter spindle speed

10,000 rpm

Overview

The Nakamura-Tome AS-200L is a CNC Swiss-type automatic lathe designed for the high-precision production of small, complex components from bar stock. Leveraging the sliding-headstock Swiss machining principle, the AS-200L produces long, slender parts with exceptional straightness, tight tolerances, and superior surface finish that fixed-headstock turning centers cannot match at similar length-to-diameter ratios.

The AS-200L features a main spindle with high-speed capability for efficient machining of small-diameter bar stock, a counter spindle for complete backside machining in a single cycle, and an extensive complement of turning and live tooling positions for front and back face operations. The guide bushing provides near-zero overhang at the cutting point regardless of bar length, which is the fundamental advantage of the Swiss-type architecture for producing precision pins, shafts, and miniature components.

Nakamura-Tome built the AS-200L with a focus on operator accessibility and programmability, offering a clear, unobstructed work zone and FANUC 32i-B control with NTControl interface. The control's conversational programming and cycle support options reduce programming time for complex multi-axis Swiss programs, which have traditionally required highly experienced CNC programmers. The machine accepts Fanuc-standard G-code programs from all major CAM systems as well.

With its simultaneous multi-axis cutting capability — allowing the main and counter spindle zones to operate in parallel — the AS-200L achieves productive cycle times on complex components. It is particularly well regarded in the medical device, electronics, and precision instrument industries, where high volumes of small, accurate, complex parts are demanded at competitive cycle times.

Full Specifications

Parameter	Value
Max. Bar Diameter	20 mm
Max. Machining Length	200 mm
Main Spindle Speed	10,000 rpm
Main Spindle Power	3.7 kW
Main Spindle Torque	7 Nm
Counter Spindle Speed	10,000 rpm
Counter Spindle Power	2.2 kW
Front Tool Positions (Turning)	5 turning tools
Front Live Tool Positions	4 driven tools
Rear (Back-Working) Tools	4 positions
Live Tool Speed	8,000 rpm
Live Tool Power	0.75 kW
Guide Bushing	standard (rotary)
CNC Control	FANUC 32i-B / NTControl
Machine Weight	approx. 1,200 kg
Max Turning Diameter	280mm
Max Turning Length	570mm
Distance Between Centers	760mm
L Bar Capacity	65mm
L Chuck Size	8″
L Spindle Speed	4,500mm-1
L Spindle Drive Motor	15/11kW
Floor Space	height:1,935mm

Specifications sourced from nakamura-tome.com — verified 2026-03-28

Strengths & Limitations

Strengths

Swiss sliding-headstock principle produces slender parts with near-zero deflection and excellent straightness
Counter spindle enables complete front-and-back machining in a single, unattended cycle
10,000 rpm main spindle enables high surface speeds for efficient small-diameter turning
NTControl interface simplifies Swiss-type programming versus traditional cam-operated Swiss machines
Compact footprint and light machine weight suit shop environments with limited floor space

Limitations

20 mm bar capacity limits the machine to small-diameter work only
Guide bushing requires precise bar stock tolerances — poor bar quality causes guide bushing wear and accuracy issues
Per-unit productivity is lower than multi-spindle machines for very high volume, single-part families

Best For

Medical device manufacturers producing bone screws, dental implants, and miniature instrument components Electronics manufacturers producing precision connector pins, contacts, and actuator parts Precision instrument and watchmaking suppliers machining small, complex, tight-tolerance components Automotive fuel system and sensor component producers requiring high accuracy on small turned parts

Frequently Asked Questions

01 What is the maximum bar diameter the Nakamura-Tome AS-200L can machine?

The AS-200L handles bar stock up to 20 mm in diameter. This positions it in the mainstream small-diameter Swiss-type category, covering the vast majority of medical implant screws, electronic connector components, precision pins, and miniature actuator parts.

02 Why use a Swiss-type lathe instead of a conventional CNC turning center for small parts?

In conventional CNC turning, bar stock is gripped at the chuck and the free end is unsupported in the cutting zone. For slender parts (high length-to-diameter ratio), this causes deflection and vibration, degrading dimensional accuracy and surface finish. Swiss-type machines support the bar through a guide bushing just behind the cutting tool, providing near-zero unsupported length at the point of cut regardless of part length. This produces the straightness and tight tolerances required for medical and precision components.

03 Does the Nakamura-Tome AS-200L have simultaneous multi-axis capability?

Yes. The AS-200L can operate the main spindle zone and counter spindle zone simultaneously, performing different operations on different workpieces at the same time. For example, while the main spindle zone is turning and milling a new part, the counter spindle can be drilling and threading the back face of the previously transferred part. This overlap minimizes idle time and maximizes throughput.

04 What industries primarily use the Nakamura-Tome AS-200L?

Primary users are in medical devices (bone screws, dental implants, surgical instruments), electronics (connector pins, contacts, relay components), precision instruments (sensor housings, actuator parts), and automotive fuel systems and sensors. Any application requiring high volumes of small, accurate, complex parts from bar stock is well suited to the AS-200L.

05 How does the AS-200L's FANUC 32i-B control simplify Swiss-type programming?

Nakamura-Tome's NTControl interface running on FANUC 32i-B provides conversational cycle support, tool registration guidance, and cutting condition recommendations that reduce the programming learning curve for Swiss-type machines. Operators familiar with FANUC CNC from conventional turning centers can transition to the AS-200L more quickly than with older cam-driven Swiss-type automatics. Full G-code programming and CAM post-processor compatibility is also standard.