Small, complex turned parts at volume.
Sixteen Swiss-type lathes — Citizen L12, L20 and L32, Citizen/Miyano BNX and BNA, Tsugami S205-II and B0325V-II — holding ±.0005 in on turned diameters with as-machined finishes that rarely need a secondary operation.
Swiss-type turning supports the bar right at the cutting tool, which is why it holds long slender parts other lathes cannot: pins, shafts, fittings, spacers, connector bodies, bone screws, valve components. With bar feeders and sub-spindle work, a finished part comes off complete — turned, drilled, milled, threaded and parted — in a single cycle.
Sixteen machines means we can dedicate a spindle to a repeat program rather than tearing it down between orders. For customers on scheduled releases, that is the difference between a two-week lead time and a two-day one.
Small parts get measured optically. Four Keyence IM image dimension systems check dozens of features in seconds, which makes statistical control practical at production volume instead of theoretical.
- Standard turned tolerance
- ±.0005″
- Critical features
- ±.0001″
- Bar capacity
- Up to 32 mm dia.
- Surface finish
- 16 Ra standard, 8 Ra on request
- Quantities
- Hundreds to hundreds of thousands
- Citizen L12, L20, L32 series — Swiss-type CNC lathes
- Citizen / Miyano BNX and BNA — fixed-headstock turning centers
- Tsugami S205-II and B0325V-II — precision Swiss-type lathes
- Bar feeders across the department for lights-out running
- Keyence IM image dimension systems (4) for optical inspection
- 01
Material and bar review
Bar stock selected and certified to the print specification, with mill certs retained.
- 02
Single-cycle programming
Turning, milling, drilling and threading combined so the part comes off complete.
- 03
Optical first article
Full dimensional report on the Keyence IM systems.
- 04
SPC through the run
Documented sampling frequency with recorded results.
- Aluminum (6061, 7075, 2024)
- Stainless steel (303, 304, 316, 17-4 PH, 15-5 PH)
- Alloy and carbon steel (4140, 4340, 1018)
- Titanium (Grade 5 / 6Al-4V)
- Inconel® and nickel alloys
- Brass, bronze and copper
- Engineering plastics (Delrin®, PEEK, PTFE)
Swiss Turning, answered plainly.
What bar diameter can you run?
Up to 32 mm across the Citizen L32 and Miyano machines; most work runs 12 mm to 20 mm.
Is there a minimum quantity?
No hard minimum, though Swiss setups amortize best over hundreds of pieces or more. Small quantities may run more economically on a turning center.
Do you provide material certifications?
Yes — mill certs and certificates of conformance are supplied with the shipment on request.
CNC Turning
Eight turning centers, several with Y-axis and sub-spindle, so a chucked part is turned, milled, drilled and finished on the back side without leaving the machine.
View capability →Secondary Operations
Tapping, drilling, grinding, deburring, assembly and laser marking in-house, with anodize, passivation, plating, heat treat and NDT coordinated through approved sources.
View capability →Inspection & Metrology
A climate-controlled inspection lab with a ZEISS ACCURA CMM, a Mitutoyo Crysta-Apex EX, four Keyence IM image dimension systems and a fully calibrated gage library.
View capability →