The Citizen Cincom L20-XII ATC is an industrial-grade CNC Lathes & Turning Centers powered by the Mitsubishi Meldas (Citizen software). a top spindle speed of 10,000 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Citizen Cincom L20-XII ATC: L20 Swiss-type lathe with tool changer, 46 tools with ATC, 20 mm bar (25 mm option), 10,000 rpm spindles. Not current.
| Standardized Parameters & Ratings | |
|---|---|
| Manufacturer (Brand) | Citizen (Japan) |
| Machine Type | CNC Lathes & Turning Centers |
| CNC Controller System | Mitsubishi Meldas (Citizen software) |
| Number of Controlled Axes | 3-Axis Simultaneous / Positioning |
| Maximum Spindle Speed | 10,000 RPM |
| Spindle Motor Rating | 2.2 kW |
| Spindle Taper Interface | Standard |
| Automatic Tool Changer (ATC) | 46 Tool Stations |
| Approx. Machine Weight | 2,680 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Max Machining Diameter | 20 mm (25 / 1" option) |
| Max Machining Length | 200 mm (GB) / 50 mm (GBL) |
| Spindle Bore | 26.4 mm (1.04 in) |
| Number Of Axes | 12-axis simultaneous |
| Automatic Tool Changer | Yes |
| Rapid Traverse | 32 m/min |
| Lfv Chip Breaking | Yes (simultaneous dual-spindle) |
| Guide Bushing | WFG206-M, DFG206-M, FG521-M (dia. 25 mm [1”]) |
| Machine Weight | 2,680 kg (5,908 lb) |
| Power Consumption | 8.3 kVA |
| CNC Control | Mitsubishi Meldas (Citizen software) |
| Model | L20E – 3M8 |
| Max Machining Length 20 Mm Dia Spec | 200 mm per chucking |
| Max Machining Length 25 Mm Dia Spec | 188 mm per chucking |
| Max Front Drilling Diameter | dia. 10 mm |
| Max Front Tapping Diameter | M8 (cutting tap) |
| Spindle Through Hole Diameter | dia. 26.4 mm |
| Spindle Rotation | Max. 10,000 min⁻¹ |
| Max Chucking Diameter Of Back Spindle | dia. 20 mm, dia. 25 mm [1”] option |
| Max Taking Out Length Of The Workpiece | 130 mm |
| Max Workpiece Protrusion Length Of Back Spindle | 40 mm |
| Gang Tool Post Rotary Tool Max Drilling Diameter | dia. 8 mm |
| Gang Tool Post Rotary Tool Max Tapping Diameter | M6 (cutting tap) |
| Gang Tool Post Rotary Tool Spindle Rotation | Max. 6,000 min⁻¹ (rated: 4,500 min⁻¹)S3 motor: Max. 9,000 min⁻¹ (rated: 9,000 min⁻¹) |
| Rotary Tools On Opposite Tool Post | Max. 6,000 min⁻¹ (rated: 4,500 min⁻¹) |
| Max Number Of Mountable Tools | 38 |
| Turning Tools On Gang Tool Post | 6 |
| Rotary Tools On Gang Tool Post | 25 |
| Front Drilling Tool | 3 |
| Tool Size | sq. 12 mm (sq. 13 mm, sq. 16 mm) |
| Sleeve | dia. 25 mm (GDS107, 210), dia. 19.05 mm |
| Front Spindle Collet Chuck | FC034-M, FC071-M (ø25 mm [1”]) |
| Rotary Tool Collet Chuck | ER11, ER16 |
| Chuck For Drill Sleeve | ER11, ER16 |
| Motors Front Spindle Drive | 2.2 / 3.7 / 5.5 kW (continuous/15 min/10%ED) |
| Motors Back Spindle Drive | 1.5 / 2.2 / 3.7 kW (continuous/40%ED/10%ED) |
| Motor For Gang Rotary Tools | 1.0 kW (2.2 kW with S3 motor) |
| Motor For Front Rotary Tool Drive | 0.75 kW |
| Motor For Back Rotary Tool Drive | 0.75 kW |
| Coolant Motor | 0.4 kW |
| Rated Power Consumption | 8.3 kVA |
| Average Load Operation Power Consumption | 4.5 kVA |
| Total Load Current | 37 A (41 A with S3 motor) |
| Main Breaker Capacity | 60 A |
| Power Supply Voltage | AC 200V ± 10% |
| Pneumatic Device Required Pressure | 0.5 MPa |
| Pneumatic Device Flow Rate | 52 / 55 / 177 L / min (Power ON / Normal / With air blow) |
| Machine Dimensions | W 2,222 × D 1,625 × H 1,835 mm |
| Machine Height | 1,830 mm |
| Max Spindle Speed | Max. 10,000 rpm |
| Sub Spindle Speed | Max. 10,000 rpm |
| Tool Capacity | 46 (w/ ATC) |
| Live Tool Speed | Max. 9,000 rpm (S3 high-power) |
| Spindle Motor Power | 2.2 / 3.7 / 5.5 kW |
| Sub Spindle Power | 1.5 / 2.2 / 3.7 kW |
Our best estimate for the Citizen Cincom L20-XII ATC is USD 280,000 - 420,000. This is an estimate for a swiss-type lathes in this class, not a quote from Citizen Machinery; configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/citizen-cincom-l20-xii-atc#price; the request is passed to Citizen Machinery or an authorised dealer.
It is not in Citizen's current lineup. The current third-generation L20 range runs from the type VIII to the type XIIB5. The figures quoted for the ATC machine are the listed ones and cannot be checked against a current Citizen product page.
The listing gives 46 tools with the ATC and 38 mountable tools on the machine itself: 6 turning tools and 25 rotary tools on the gang tool post and 3 front drilling tools. Those last counts match the current L20 type VIII column rather than the type XII, so count the stations on the actual machine.
20 mm bar as standard and 25 mm (1 in) as an option. With the guide bush the stroke is 200 mm per chucking, or 188 mm with 25 mm bar; guide-bushless it is 50 mm. Parts up to 130 mm long can be taken out, and the back spindle allows 40 mm of workpiece protrusion.
A Mitsubishi Meldas control with Citizen software is listed. Rated power consumption is 8.3 kVA, with 4.5 kVA average under load, on AC 200V ±10% with a 60 A main breaker. Air is needed at 0.5 MPa.
