LONG Precision · Technical Resources
Swiss CNC Machining vs. Conventional CNC Turning
A practical comparison to help engineers and buyers choose a manufacturing approach for precision turned components.
Both Swiss CNC machining and conventional CNC turning can produce precision components. The best choice depends on geometry, material, tolerances, required features, volume, and available equipment—not simply whether one process is considered more advanced.
How Swiss machining differs
Swiss-type lathes typically support bar stock close to the cutting zone using a guide bushing, which can help control deflection when machining long, slender features. Conventional turning supports different workholding approaches and can be better suited to many larger or shorter components. Actual suitability depends on the specific machine configuration and part.
Questions to consider
- Part diameter: Does the starting stock fit the machine's bar capacity?
- Length-to-diameter ratio: Are slender features susceptible to deflection?
- Features: Are cross-holes, flats, threads, or milled features required?
- Volume: Is repeatable production expected over multiple releases?
- Inspection: Which characteristics are critical, and how will they be verified?
LONG Precision's approach
LONG Precision's current STAR Swiss CNC bar capacity is from 3 mm (0.118 in) to 23 mm (0.906 in). We also offer complementary CNC machining capabilities. We evaluate the part drawing and production requirements before recommending a process. For the right long-term opportunity, we are willing to evaluate additional equipment investment.
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