The Citizen Cincom L20-VIII is an industrial-grade CNC Lathes & Turning Centers powered by the Standard CNC. 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-VIII Swiss-type lathe: 20 mm bar (25 mm option), 10,000 rpm main and back spindles, up to 38 tools, 200 mm per chucking.
| Standardized Parameters & Ratings | |
|---|---|
| Manufacturer (Brand) | Citizen (Japan) |
| Machine Type | CNC Lathes & Turning Centers |
| CNC Controller System | Standard CNC |
| Number of Controlled Axes | 3-Axis Simultaneous / Positioning |
| Maximum Spindle Speed | 10,000 RPM |
| Spindle Taper Interface | Standard |
| Automatic Tool Changer (ATC) | 38 Tool Stations |
| Approx. Machine Weight | 2,630 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Max Machining Diameter | 20 mm dia.(25 mm dia.OP.) |
| Max Machining Length | 200 mm per chucking |
| Max Machining Length Gb 25mm Dia Spec | 188 mm per chucking |
| Max Machining Length Gbl | max. 50 mm per chucking (GBL) |
| Max Drilling Diameter | 10 mm dia. |
| Max Tapping Diameter | M8 (cutting tap) |
| Spindle Bore | 26.4 mm dia. |
| Max Spindle Speed | max. 10,000 rpm |
| Sub Spindle Chuck Diameter | dia. 20 mm, dia. 25 mm[1”]option |
| Max Part Ejection Length | 130 mm |
| Max Workpiece Protrusion Length Of Back Spindle | 40 mm |
| Back Machining Max Drilling Diameter | 8 mm dia. |
| Back Machining Max Tapping Diameter | M8 (cutting tap) |
| Sub Spindle Speed | max. 10,000 rpm |
| Gang Tool Post Rotary Tool Max Drilling Diameter | 8 mm dia. |
| Gang Tool Post Rotary Tool Max Tapping Diameter | M6 (cutting tap) |
| Gang Tool Post Rotary Tool Spindle Rotation | max. 6,000 rpm (rated speed: 4,500 rpm) |
| Gang Tool Post Rotary Tool | S3 high-power motor specifications: max. 9,000 rpm (rated speed: 9,000 rpm) |
| Rotary Tools On The Opposite Tool Post | max. 6,000 rpm (rated speed:4,500 rpm) |
| Tool Capacity | 38 |
| Number Of Mountable Tools Turning Tools On The Gang Tool Pos | 6 |
| Number Of Mountable Tools Rotary Tools On The Gang Tool Post | 25 |
| Number Of Mountable Tools Front Drilling Tools | 3 |
| Number Of Mountable Tools Back Drilling Tools | 4 |
| Tool Size Turning Tools | 12 mm Sq. (13 mm Sq., 16 mm Sq.) |
| Tool Size Sleeve | 25 mm dia.(GDS107, 210) 19.05 mm dia. |
| Chuck Bushing Front Spindle Collet Chuck | FC034-M, FC071-M(φ 25 mm [1”]) |
| Chuck Bushing Back Spindle Collet Chuck | FC034-M-K, FC071-M-K(φ 25 mm [1”]) |
| Chuck Bushing Rotary Tool Collet Chuck | ER11, ER16 |
| Chuck Bushing Chuck For Drill Sleeve | ER11, ER16 |
| Chuck Bushing Guide Bushing | WFG206-M, DFG206-M, FG521-M(φ25 mm [1"]) |
| Rapid Feed Rate X1 Y1 Z1 X2 Z2 Axis | 32 m/min |
| Motor For Front Spindle Drive | 2.2/3.7/5.5 kW (continuous/15 minute/10%ED ratings) |
| Motor For Back Spindle Drive | 1.5/2.2/3.7 kW (continuous/40%ED/10%ED ratings) |
| Motor For Driving Rotary Tools On The Gang Tool Post | 1.0 kW(2.2 kW with S3 high-power motor specifications) |
| Motor For Front Rotary Tool Drive | 0.75 kW |
| Motor For Back Rotary Tool Drive | 0.75 kW |
| For Coolant | 0.4 kW |
| Rated Power Consumption | 8.3 kVA |
| Load Operation Average Power Consumption | 4.5 kVA |
| Total Load Current | 37 A(41 A with S3 high-power motor specifications) |
| Main Breaker Capacity | 60 A |
| Power Supply Voltage | AC 200V ± 10% |
| Pneumatic Device Required Pressure | 0.5 MPa |
| Pneumatic Device Required Flow Rate | 52/ 55/ 177 L/min (Power ON/Normal/ With air blow) |
| Footprint | W2,222 × D1,265 × H1,835 mm |
| Center Height | 1,050 mm |
| Machine Weight | 2,630 kg |
Our best estimate for the Citizen Cincom L20-VIII is $180,000 - $280,000. 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-viii#price; the request is passed to Citizen Machinery or an authorised dealer.
Citizen describes the third-generation L20 as five models running from the cost-effective type VIII to the type XIIB5, which allows simultaneous 5-axis control. The type VIII has no back rotary tools and no Y2 axis in its column, carries 4 back drilling tools and holds up to 38 tools in total.
With the guide bush, 200 mm per chucking at 20 mm bar and 188 mm with the 25 mm specification. Guide-bushless, the limit is 50 mm per chucking. These are chucking strokes, not part lengths; longer parts are made with re-chucking. Finished parts up to 130 mm long can be ejected.
They drill up to 8 mm and tap up to M6 with cutting taps. The standard drive runs at up to 6,000 rpm (rated 4,500 rpm) on a 1.0 kW motor. The S3 high-power specification raises the speed to 9,000 rpm and the motor to 2.2 kW. There are 25 rotary tool positions on the gang tool post.
It can drill and tap from the back spindle: up to 8 mm drilling and M8 cutting taps, with 4 back drilling tools and 40 mm of workpiece protrusion. Its column lists no back rotary tools, so milled or cross-drilled features on the back end are outside what this type is specified for.
A rated power consumption of 8.3 kVA (4.5 kVA average under load), AC 200V ±10%, a 60 A main breaker and a total load current of 37 A, or 41 A with the S3 high-power motor. Air must be supplied at 0.5 MPa, with consumption rising to 177 L/min when air blow is used.
