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.
A Century of Making Things Along the Wasatch Front
Manufacturing identity in Salt Lake City runs deeper than the Silicon Slopes branding. Kennecott's copper operation west of town has fed heavy industry for over a hundred years, the missile era planted Hill Air Force Base sustainment and Northrop Grumman's solid rocket motor production in Promontory. The last three decades added a genuine medical device cluster anchored by Merit Medical Systems in South Jordan, BioFire Diagnostics and Varex Imaging. Each wave left behind engineers who expect suppliers to hold a print.
What ties those eras together is an appetite for small turned parts at scale. Merit Medical's disposable cardiology and radiology devices consume machined hubs, luer fittings and cannulated components in six-figure annual volumes. Hill AFB depot work and L3Harris electronics generate steady demand for contact pins, connector bodies and mil-spec fasteners. Swiss turning fits both because the guide bushing supports the bar at the cutting point, so a 3 inch long 0.125 inch diameter pin comes off straight, concentric to 0.0002 inches TIR and finished near Ra 16 microinches without grinding.
RivCut runs that work from our Union City, California shop and ships it to Salt Lake City in about 2 to 3 business days by ground, with air freight available when a line-down situation cannot wait for the truck.
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.
What Salt Lake City Teams Send to Our Swiss Lathes
What Salt Lake City buyers actually order, sector by sector.
Medical Devices & Diagnostics
The South Jordan to Salt Lake corridor is one of the densest disposable-device clusters in the Mountain West. Merit Medical's cardiology, radiology and endoscopy lines, BioFire's molecular diagnostic cartridges and Varex Imaging's X-ray tube assemblies all depend on small turned components with medical-grade finishes and full lot traceability. RivCut Swiss turns them from 316L, titanium, PEEK and 17-4 PH with material certs on every shipment, from first prototype through 100,000 piece bar-fed production.
Aerospace & Defense
Between Hill AFB's Ogden Air Logistics Complex maintaining F-35, F-16 and A-10 fleets, Northrop Grumman's strategic motor programs in Promontory and L3Harris electronics in Salt Lake City, the Wasatch Front carries some of the most demanding small-part specs in the country. Swiss lathes are the right tool for the connector pins, fuel fittings, standoffs and sensor housings inside that hardware. RivCut supports ITAR-controlled work with mil-spec documentation, first article reports and single-setup live tooling that keeps critical features concentric.
Mining & Industrial Equipment
Kennecott copper, Weir Minerals service centers and Parker Hannifin's hydraulic component plant in Ogden keep the region's fluid power and wear-part economy busy. Much of what fails in a slurry pump skid or a hydraulic manifold is small and turned: valve spools, gauge pins, grease fittings and precision bushings. RivCut machines replacements from 4140, 440C, 17-4 PH and bronze, often working from a worn sample and a sketch, so maintenance planners are not held hostage to OEM lead times.
Common Questions from Salt Lake City Teams
How Swiss turning, quoting and shipping work for Salt Lake City teams.
Swiss Machining in the Salt Lake City Region
Get Micro Precision Parts to Salt Lake City Fast
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