Citizen Cincom F20

$220,000 - $280,000 Updated 2026-03-17

Key Specifications

Max Bar Diameter

20 mm

Number of CNC Axes

Main Spindle Speed

10,000 RPM

Sub-Spindle Speed

8,000 RPM

Driven Tool Speed

6,000 RPM

Y-Axis Travel (Front Post)

±12 mm

Overview

The Citizen Cincom F20 is a 6-axis Swiss-type sliding headstock lathe engineered for high-complexity precision components in the 20mm bar range. Where many Swiss lathes concentrate tooling on a gang slide, the F20's architecture provides independent gang and turret tool posts, enabling true simultaneous machining on the main and sub spindles without tool-path conflicts — a critical advantage when cycle time is a competitive differentiator.

Citizen developed the F20 to bridge the gap between standard Swiss lathes and full-featured turn-mill centers. Six fully interpolated CNC axes, combined with Y-axis capability on the front tool post, allow off-center milling, cross-drilling, and helical milling without the machine compromises typical of entry-level Swiss configurations. The result is a single-setup solution for parts that would otherwise require multiple operations or a dedicated machining center.

The F20 incorporates Citizen's LFV (Low Frequency Vibration) chip-breaking system across all applicable turning operations, making it particularly capable with work-hardening materials such as 17-4 PH stainless, Inconel 625, and medical-grade titanium. Coolant management is tightly integrated with the LFV control logic, reducing coolant consumption while maintaining effective chip evacuation.

With a footprint designed for high-density shop floors and Citizen's OSP-P300S control at the helm, the F20 is a compelling choice for contract manufacturers and captive shops producing intricate multi-feature components in the medical, aerospace, and fluid power sectors. Offline programming via CINCOM ASSISTANT software significantly reduces machine downtime during part changeovers.

Full Specifications

Parameter	Value
Max Bar Diameter	20 mm
Number Of CNC Axes	6
Main Spindle Speed	10,000 RPM
Sub-Spindle Speed	8,000 RPM
Driven Tool Speed	6,000 RPM
Y-Axis Travel (Front Post)	±12 mm
Max Part Length (Main)	200 mm
Total Tool Stations	34
Control	Citizen OSP-P300S
Machine Weight	Approx. 1,900 kg
Footprint (W X D)	1,450 x 1,500 mm
Cnc	CNC自動旋盤がどんな機能や特徴を持っているか解説。
Creation	当社の情報誌「CREATION」のバックナンバーを掲載。

Specifications sourced from cmj.citizen.co.jp — verified 2026-03-28

Strengths & Limitations

Strengths

True 6-axis simultaneous cutting eliminates idle time during complex operations
Y-axis on front tool post enables off-center milling and helical features without a machining center
LFV chip-breaking handles work-hardening alloys reliably in production
Combined gang + turret layout maximizes tool capacity without sacrificing rigidity
OSP-P300S control with full conversational and G-code programming flexibility

Limitations

20mm bar limit restricts use to smaller diameter components
Higher tooling investment required to fully exploit 34-station capacity
Programming complexity of 6-axis simultaneous operations demands skilled setup personnel

Best For

Medical bone screws, dental abutments, and implant components in Ti-6Al-4V and 17-4 PH Aerospace fluid-system fittings and sensor bodies with multiple cross-features Precision hydraulic valve spools and actuator pins requiring off-center drilling High-mix contract machining where single-setup capability reduces lead time

Frequently Asked Questions

01 What differentiates the Cincom F20 from the Cincom B20?

The F20 adds a sixth CNC axis and Y-axis capability on the front tool post compared to the B20, enabling off-center milling and more complex simultaneous operations. The F20 is suited to parts requiring more geometric features in one setup, while the B20 targets simpler high-volume turned parts.

02 Can the F20 perform back-working operations?

Yes. The F20 features a fully capable sub-spindle with its own driven tool stations, allowing complete back-face turning, cross-drilling, and milling. Parts can be fully completed — including back-face features — without secondary operations.

03 Does the Cincom F20 support guide-bushing-less operation?

Citizen offers a GBL (guide-bushing-less) conversion kit for the F20 platform, which reduces remnant bar length and is recommended for short parts or expensive bar stock. Shops should verify GBL availability and impact on rigidity for their specific part profiles with a Citizen applications engineer.

04 What industries use the Cincom F20?

Primary industries include medical device manufacturing (surgical instruments, implants, dental components), aerospace (fluid fittings, sensor housings), electronics (precision connectors), and high-precision contract machining. The F20's Y-axis capability makes it particularly strong where off-center features are common.

05 Is the Cincom F20 compatible with bar feeders?

Yes. The F20 accepts standard 12-foot and 6-foot bar feeders from multiple third-party suppliers. Citizen also offers its own LNS and other approved bar-feeder integrations for lights-out unmanned operation.