Citizen Cincom M16
Key Specifications
Max Spindle
max bar capacity
max machining diameter
max machining length
main spindle speed
main spindle power
Overview
The Citizen Cincom M16 is a versatile 16mm sliding headstock CNC automatic lathe that combines high spindle speeds with a comprehensive tooling layout including gang tools, turret, and back tool post in a single machine. The M-series designation in Citizen's lineup signals maximum versatility—the M16 is engineered to handle the widest possible range of part geometries within the 16mm bar capacity envelope, making it the go-to machine for job shops and contract manufacturers that face constantly changing part requirements rather than long-run production of a single component.
The M16 delivers 12,000 RPM on both main and back spindles with 2.2/3.7 kW main spindle power and 0.75/1.5 kW back spindle power through a 20mm spindle bore. Maximum machining length reaches 200mm per chucking—significantly longer than the L12's 135mm, providing headroom for longer turned parts. The machine accepts 36+ tools across gang turning positions, gang rotary tools, turret stations, and back tool post positions. Rotary tools on all three tool posts operate at 8,000 RPM, providing consistent milling and drilling performance regardless of which post is being used.
Available in two configurations—the M16-V and M16-VIII—the M16 platform scales from standard multi-axis capability to full B-axis angular machining. The M16-VIII adds a programmable B-axis with -45 to +90 degree stroke, enabling compound-angle drilling and angular milling for parts with features that standard Swiss configurations cannot reach. Citizen's LFV chip-breaking technology comes standard on both variants, providing the controlled chip breaking essential for reliable production in stainless steel, titanium, and engineering plastics.
At 2,900 kg (M16-V) to 2,950 kg (M16-VIII) with a 1,150mm center height, the M16 is a mid-weight Swiss machine with a solid, rigid platform for demanding cuts. The combination of gang tools for speed, a turret for tool variety, and a back tool post for secondary operations gives the M16 a triple-threat tooling architecture that no other 16mm Swiss machine matches. For shops that need one machine to handle everything from simple turned parts to complex multi-feature components, the M16's versatility is unmatched in its size class.
Full Specifications
| Parameter | Value |
|---|---|
| Max Bar Capacity | 16 mm (0.630 in) |
| Max Machining Diameter | 16 mm (0.630 in) |
| Max Machining Length | 200 mm (7.87 in) |
| Main Spindle Speed | 12,000 RPM |
| Main Spindle Power | 2.2 / 3.7 kW (3 / 5 HP) |
| Back Spindle Speed | 12,000 RPM |
| Back Spindle Power | 0.75 / 1.5 kW (1 / 2 HP) |
| Spindle Bore | 20 mm (0.787 in) |
| Number Of Axes | Multi-axis (M16-V) / B-axis -45 to +90 deg (M16-VIII) |
| Number Of Tools | 36+ |
| Tool Size | Turning tool |
| Rotary Tool Speed | 8,000 RPM (all tool posts) |
| Max Drilling Diameter Front | 10 mm (0.394 in) |
| Max Drilling Diameter Back | 8 mm (0.394 in) |
| Max Tapping Front | M8 |
| Max Tapping Back | M6 |
| Rapid Feed Rate | X1 axis |
| Guide Bushing | Yes / Guide-bushless option |
| Lfv Chip Breaking | Yes (standard) |
| Machine Weight | 2,950kg |
| Center Height | 5.4kVA |
| CNC Control | Mitsubishi Meldas (Citizen software) |
| Item | M16VIII |
| Maximum Machining Diameter | 16mm Dia. |
| Maximum Machining Length | 200mm/chuck |
| Maximum Drilling Diameter For Main Spindle | 10mm Dia. |
| Maximum Front Tapping Diameter | M8 |
| Main Spindle Through Hole Diameter | 20mm Dia. |
| Max Spindle Speed | 12,000min-1 |
| Maximum Chuck Diameter Of Back Spindle | 16mm Dia. |
| Maximum Protrusion Length Of The Back Spindle Workpiece | 125mm |
| Maximum Drilling Diameter In Back Machining Process | 8mm Dia. |
| Maximum Tapping Diameter In Back Machining Process | M6 |
| Gang Tool Rotary Tool Maximum Drilling Diameter | 5mm Dia. |
| Gang Tool Rotary Tool Maximum Tapping Diameter | M5 |
| Spindle Speed Of The Gang Rotary Tool | 8,000min-1 |
| Maximum Drilling Diameter For Turret Rotary Tool | 5mm Dia. |
| Maximum Tapping Diameter For Turret Rotary Tool | M5 |
| Maximum Drilling Diameter For Back Rotary Tool | 5mm Dia. |
| Maximum Tapping Diameter For Back Rotary Tool | M5 |
| Spindle Speed Of The Back Rotary Tool | 8,000min-1 |
| Number Of Tools To Be Mounted | 36+α |
| Sleeve | 19.05mm Dia. |
| X2 Axis | 16m/min |
| X3 Axis | 32m/min |
| Y1 Axis | 32m/min |
| Y2 Axis | 8m/min |
| Y3 Axis | 32m/min |
| Z1 Axis | 32m/min |
| Z2 Axis | 32m/min |
| Z3 Axis | 32m/min |
| Motors | For spindle drive |
| For Back Spindle Drive | 0.75/1.5kW |
| For Tool Spindle Drive | 0.69kW |
| For Back Tool Spindle Drive | 0.75kW |
| For Cutting Coolant Oil | 0.4kW |
| Rated Power Consumption | 7.9kVA |
| Load Operation Average Power | 1,150mm |
| Sliding Headstock Type | A20 |
| Bar Work | BNC42 |
| Turning Machine | BNA42CY |
| High Precision Turning Machines | BNA42SY |
| Multi Station Machining Cell | MC20 III |
| Tool Size Turning Tool | 10mm Sq. |
| Tool Size Sleeve | 19.05mm Dia. |
| Rapid Feed Rate X1 Axis | 32m/min |
| Rapid Feed Rate X2 Axis | 16m/min |
| Rapid Feed Rate X3 Axis | 32m/min |
| Rapid Feed Rate Y1 Axis | 32m/min |
| Rapid Feed Rate Y2 Axis | 8m/min |
| Rapid Feed Rate Y3 Axis | 32m/min |
| Rapid Feed Rate Z1 Axis | 32m/min |
| Rapid Feed Rate Z2 Axis | 32m/min |
| Rapid Feed Rate Z3 Axis | 32m/min |
| Motors For Spindle Drive | 2.2/3.7kW |
| Motors For Back Spindle Drive | 0.75/1.5kW |
| Motors For Tool Spindle Drive | 0.69kW |
| Motors For Back Tool Spindle Drive | 0.75kW |
| Motors For Cutting Coolant Oil | 0.4kW |
| Inquiries | Feel free to get in touch with us by phone or online if you have any questions or need advice about any of our products or services. |
Specifications sourced from cmj.citizen.co.jp — verified 2026-03-28
Strengths & Limitations
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Limitations
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Best For
Frequently Asked Questions
01
A new Citizen Cincom M16 typically runs $180,000-$320,000 depending on configuration. The M16-V starts around $180,000-$240,000, while the M16-VIII with B-axis reaches $260,000-$320,000. The M16 is priced above the L12 due to its more complex triple tool post architecture and larger capacity. Used M16 machines are less common than L-series on the secondary market.
02
The M16-VIII adds a programmable B-axis with -45 to +90 degree stroke (0.4 kW motor) for compound-angle drilling and angular milling. The M16-V provides the same triple tool post architecture without the B-axis. Both variants include LFV standard. Choose the M16-V for parts that don't require angular features, or the M16-VIII when compound-angle machining is needed.
03
The M16 and L12 serve different strategies. The L12 uses a gang-tool-focused layout optimized for speed on standard Swiss parts up to 12mm (16mm optional). The M16 adds a turret and accommodates 16mm bar as standard, with 200mm machining length versus 135mm. The M16 handles a wider variety of part types but with more setup complexity. Choose the L12 for high-volume production of consistent parts; choose the M16 for diverse part mixes requiring maximum flexibility.
04
The M-series designation in Citizen's lineup indicates maximum versatility. The M16 combines gang tools, a turret, and a back tool post—three independent tooling systems in one machine. The L-series focuses on gang-tool-based layouts optimized for speed and simplicity. The M-series trades some of the L-series speed advantage for significantly greater tooling flexibility and part variety capability.
05
Yes. The M16 supports guide-bushless operation for shorter parts. In guide-bushless mode, bar remnant waste is reduced and the machine can handle parts with low length-to-diameter ratios more efficiently. Switching between guide bush and guide-bushless modes requires a mechanical changeover.
06
All three tool post systems on the M16—gang rotary tools, turret rotary tools, and back rotary tools—operate at 8,000 RPM. This consistent speed across all positions simplifies tooling strategy and ensures uniform milling and drilling performance regardless of which tool post is being used for a given operation.
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