Best Swiss CNC Machining Shops — Precision Turned Parts
Swiss-type CNC lathes use a guide bushing to support bar stock close to the cutting zone, enabling precision turning of long, slender parts that would deflect on a conventional lathe. This makes Swiss machining ideal for medical screws, dental implants, watch components, precision pins, and high-volume small-diameter parts where tight tolerances (±0.0002″) and excellent surface finish are required. The shops listed here operate Swiss-type CNC lathes with bar capacities up to 1.5″ and live tooling for complete part machining in one pass.
Why these suppliers?
- ✓Swiss machining holds tighter tolerances on small-diameter parts than conventional CNC turning because the guide bushing eliminates deflection at the cutting zone — essential for medical screws, dental implants, and precision connectors.
- ✓Multi-spindle live tooling on Swiss lathes allows complete part machining in a single pass, minimizing handling and improving concentricity between turned and milled features.
- ✓High-volume bar-fed Swiss lathes can produce thousands of precision parts per shift at competitive unit costs once set up, making them ideal for medical, electronics, and defense components.
No suppliers found for this filter combination yet.
We are continuously adding and verifying new suppliers. Submit an RFQ and we will connect you with qualified providers.
Request a QuoteFrequently Asked Questions
What is Swiss CNC machining and how is it different from standard turning?
Swiss-type CNC lathes (also called sliding headstock lathes) feed bar stock through a guide bushing positioned directly at the cutting zone. The headstock moves axially while the bar is held stationary close to the tool, virtually eliminating deflection. This allows turning of parts with length-to-diameter ratios up to 20:1 at tolerances not achievable on conventional chucker or bar-fed lathes. Swiss machines typically include multiple live tool stations for milling, drilling, and threading in the same cycle.
What parts are commonly made on Swiss CNC lathes?
Swiss machining is the process of choice for medical bone screws, dental abutments and implants, miniature hydraulic fittings, precision pins and shafts, electronic connector contacts, watch components, and small instrumentation parts. Any part under 1.5″ diameter that requires tight tolerances, good surface finish, and high volumes is a strong candidate for Swiss machining.
What tolerances can Swiss CNC lathes achieve?
Swiss CNC lathes routinely achieve diameter tolerances of ±0.0002″ (±0.005 mm) on precision turned diameters, with concentricity and runout well under 0.0005″ TIR. Surface finish of 16–32 Ra μin is standard with carbide tooling; fine finishes of 4–8 Ra μin are achievable with diamond tooling on non-ferrous materials. Confirm your specific requirements with the shop, as achievable tolerances depend on material, part geometry, and bar diameter.