Citizen Cincom L12 Type VII

A new Citizen Cincom L12-VII typically runs $120,000-$200,000 depending on options and configuration. The base 7-axis model with LFV starts around $130,000-$150,000, with additional options like the 16mm bar capacity upgrade and specialized tooling pushing the price higher. Used L12-VII machines from 2015-2022 typically sell for $50,000-$100,000 depending on age, condition, and hours.

The L12-X is the more capable variant, adding a Y2 axis on the back tool post, a modular tooling system, and expanding tool positions from 27 to 38. The L12-X also upgrades the back spindle to 12,000 RPM with 0.75/1.15 kW power. The L12-VII is the standard production model for shops that need LFV and solid Swiss capability without the L12-X's maximum flexibility and tool count.

LFV (Low Frequency Vibration) oscillates the cutting tool in controlled patterns synchronized with spindle rotation. This creates deliberate interruptions in the chip that cause it to break into short, manageable segments regardless of the material being cut. LFV is activated programmatically and can be engaged or disengaged for individual tools within a cycle. It's most beneficial when machining materials that produce long, stringy chips—stainless steel, titanium, copper, and engineering plastics.

Yes. The L12-VII supports guide-bushless (GBL) operation with a reduced maximum machining length of 30mm. In GBL mode, the main spindle speed reduces to 12,000 RPM. Guide-bushless operation reduces bar remnant waste and is preferred for shorter parts with low length-to-diameter ratios. Switching between guide bush and guide-bushless modes requires a mechanical changeover.

The L12-VII uses a Mitsubishi Meldas control with Citizen's proprietary software. This provides fast processing speeds for 7-axis simultaneous control, multi-line programming with superimposed and synchronized axis control, and a user-friendly editing environment. The control is consistent across the entire Cincom range, so operators familiar with any Citizen machine can transition to the L12-VII with minimal retraining.

Both are top-tier small-diameter Swiss lathes. The Citizen L12-VII's key advantages are LFV chip-breaking technology and a 15,000 RPM main spindle. The Star SR-10J features a hydraulic-free design for lower maintenance and power consumption. Both offer similar bar capacity and dual-spindle capability. The choice typically comes down to whether LFV or hydraulic-free operation is more valuable for your part mix and materials.