What Is Swiss CNC Machining?
Swiss CNC machining (also known as Swiss screw machining or sliding headstock turning) feeds bar stock through a stationary guide bushing directly adjacent to the cutting tool. Because the material is supported right where the cut happens, deflection and vibration are eliminated — allowing ultra-tight tolerances, micro features, and length-to-diameter aspect ratios over 20:1 that conventional CNC lathes cannot achieve.
Bar Stock Feeds Through Guide Bushing
The raw bar feeds through a carbide-lined guide bushing, providing zero-clearance support right next to the cutting insert.
Sliding Headstock Moves Along Z-Axis
Instead of moving the cutting tool along the part, the headstock advances the bar past fixed gang tooling, maintaining maximum rigidity.
Live Tooling & Sub-Spindle Dual Machining
Cross-milling, axial drilling, threads, and back-side features are completed in a single setup before parting off the finished part.
How Swiss Turned Parts Get to Tulsa Quickly
Location is the practical edge Tulsa buyers notice first. Ground freight from our Union City, California shop reaches Tulsa in about 3 to 4 business days, so a bar fed run of connector pins or valve spools that comes off the machine on a Friday lands on a receiving dock by the middle of the next week. For an American Airlines maintenance line or a NORDAM repair cell working a fixed turn schedule, that kind of predictability is the gap between a part that beats the job to the floor and one that holds up an aircraft.
Three part hungry sectors set the pace here. Commercial and military aircraft MRO runs through American Airlines, NORDAM, Spirit AeroSystems and the 138th Fighter Wing, oil and gas midstream equipment runs through ONEOK, Williams Companies and Unit Corporation, and a medical and instrumentation niche sits behind Saint Francis Health System and the University of Tulsa. A sliding headstock Swiss lathe supports the bar with a guide bushing right at the cut, so a 4 inch shaft at 0.25 inch diameter leaves the machine straight and concentric, and live tooling with a sub spindle finishes most parts complete in a single setup.
Volume runs in both directions without a floor. RivCut turns a single Swiss prototype for a University of Tulsa lab or a hardware founder at 36 Degrees North, and it runs bar fed lots into the tens of thousands for an established pipeline or aerospace supplier, with mill certs and first article reports on request. Tulsa teams that reorder the same fitting every quarter keep the same saved program, the same fixturing and the same part at piece 1 and piece 50,000.
Engineered for Micro-Precision & High Volume
From single medical prototypes to automated 100,000+ piece production runs — built for zero defect manufacturing.
±0.0001" Micro Tolerance
Holding ultra-precise concentricity, diameter, and thread pitch tolerances on slender pins, shafts, and medical implants where standard lathes fail.
Single-Setup Completion
Multi-axis live tooling and sub-spindles handle turning, off-center milling, cross-drilling, hex broaching, and thread whirling with zero secondary setups.
Superior Ra 16 Surface Finish
Rigid guide bushing support eliminates chatter and micro-vibration, consistently producing mirror-smooth Ra 16 µin (0.4 µm) turned surfaces as-machined.
Lights-Out Production Savings
Automatic bar feeders and continuous chip management allow 24/7 un-attended operation, dramatically lowering unit costs for mid-to-high volume orders.
Swiss Machining Services Suite
Sliding headstock capabilities engineered for challenging small-diameter components.
Micro-Miniature Turning
Machining small-diameter components down to 0.020" (0.5 mm) with tight features, internal bores, and miniature threads for medical instruments and micro-valves.
Down to 0.5 mm barHigh L/D Ratio Slender Shafts
Turning long, slender shafts and pins with length-to-diameter ratios up to 20:1 without chatter, taper, or deflection.
L/D up to 20:1Multi-Axis Live Tooling
Up to 12 axes with motorized driven tools for off-center milling, keyways, cross-drilled passages, hex flats, and helical thread whirling.
Up to 12-axis liveDual-Spindle Sub-Machining
Synchronized pick-off sub-spindle finishes the back end of the part—chamfering, counterboring, and tapping—delivering 100% complete parts off the line.
100% finished partsMedical & Implant Machining
Precision turning of Titanium Ti-6Al-4V ELI bone screws, dental implant posts, orthopedic pins, and endoscope tips with ISO 13485 quality control.
Titanium & 316L medicalHigh-Volume Bar Fed Runs
Automated 12ft bar loaders, high-pressure coolant (2,000 PSI), and automated part catchers support fast production runs from 500 to 100,000+ pieces.
500 to 100,000+ pcs
Titanium Grade 5 Dental Implant Post & Bone Screw
Swiss turned for a medical device manufacturer requiring intricate thread geometry, micro-cannulation through-holes, and tight hex drive features. Machined in a single operation with zero hand deburring required.
tolerance held
surface finish
turnaround
2,500-piece run
- Optical comparator & CMM dimensional inspection report
- Mill test certs (EN 10204 3.1) with heat lot traceability
- Passivation certs per ASTM A967 / ASTM F86
- Certificate of Conformance per medical purchase order
Swiss Turning vs. Standard Lathe vs. CNC Milling
Choose the right manufacturing method based on geometry, tolerances, and batch size.
Stocked Materials for Swiss Turning
Precision ground round bar stock in metals, medical alloys, and engineering plastics.
Titanium Alloys
Ti-6Al-4V (Grade 5), Ti-6Al-4V ELI (Grade 23), Commercially Pure Titanium (Grade 2). Ideal for biocompatible implants, dental screws, and aerospace pins.
Stainless Steels
303, 304/304L, 316/316L, 17-4 PH, 440C, Custom 455. Excellent corrosion resistance, high tensile strength, and medical compliance.
Copper & Brass Alloys
C36000 Free-Cutting Brass, C17200 Beryllium Copper, Tellurium Copper C14500. Perfect for gold-plated electrical contacts and probe tips.
Specialty & Superalloys
Inconel 718, Kovar, Nitronic 60, Hastelloy C-276, Nitinol. High-temperature and controlled-expansion applications for aerospace and energy.
Medical Plastics
PEEK (Unfilled & 30% Glass Filled), Delrin (POM-H), PTFE (Teflon), Ultem 1000, Torlon 4203. Biocompatible, autoclavable, and dimensionally stable.
Alloy & Tool Steels
4140, 4340, A2, D2, M2 tool steel. High wear resistance and toughness after vacuum heat treating for mechanical shafts and dowels.
DFM Tips for Swiss Turned Parts
Optimize your 3D CAD models and drawings for maximum Swiss machining efficiency.
1. Precision Ground Bar Stock
Because the bar slides through a guide bushing, use h8 diameter tolerance precision ground bar stock to prevent binding or loose play.
2. Thread Relief Grooves
Provide a thread relief necking groove at thread shoulders (minimum 1.5x thread pitch) to allow clean single-point thread tool retraction.
3. Corner Radii & Chamfers
Specify internal corner radii of at least R 0.010" (0.25 mm) and external 45° lead-in chamfers to ease automated tool engagement and deburring.
Tulsa Industries That Run on Swiss Turning
Real part families we quote for Tulsa companies.
Aerospace MRO & Defense
Tulsa is the country's commercial MRO capital, and maintenance work runs on a constant flow of small turned replacements. American Airlines' Tulsa maintenance base, NORDAM's nacelle and thrust reverser repair lines, Spirit AeroSystems' aerostructures work and the 138th Fighter Wing's F-16 fleet all consume connector pins, bushings, fittings and fasteners that Swiss lathes turn round, concentric and burr free. RivCut machines them from 303 and 17-4 PH stainless, Ti-6Al-4V and 7075 aluminum with material certs and first article reports for Tier 2 aerospace suppliers.
Oil & Gas and Pipeline Equipment
Oil and gas midstream is the other engine of Tulsa's economy. ONEOK and Williams Companies run natural gas pipelines and processing from Tulsa headquarters, Unit Corporation drives wellhead and compression demand, and the Port of Catoosa keeps material handling equipment moving on the inland waterway. Those systems need valve spools, instrument fittings, ferrules and pressure sensor housings that hold up under pressure and, in sour service, under H2S, so RivCut turns them from 316L, 17-4 PH, duplex stainless and nickel alloys like Inconel and Monel.
Medical & Instrumentation
Tulsa's medical and instrumentation work grew out of the region's energy-sector precision base, with Saint Francis Health System and Hillcrest HealthCare System anchoring clinical demand and the University of Tulsa's engineering programs feeding device development. Swiss machining owns the micro end of that work. RivCut turns bone screws, luer fittings, dental implant components and electrode bodies under 0.5 inch in diameter from 316L, titanium and PEEK, holding Ra 16 microinch finishes as machined so most parts skip secondary grinding.
Swiss Turning FAQ: Tulsa Edition
Practical answers for Tulsa engineers and buyers.
Cities Near Tulsa We Serve
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