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.
Turned Hardware for Chandler's Engineering Corridor
Few cities of Chandler's size carry this much engineering headcount per square mile. Intel's Ocotillo campus, home of Fab 42, the most advanced chip fab in the US, sits alongside Northrop Grumman's launch vehicle operation, Microchip Technology's headquarters and an NXP wafer fab, most of it strung along the Price Road Corridor. Arizona State University feeds that cluster from Tempe, one town over, and Chandler-Gilbert Community College trains the technicians who keep the fabs and integration floors running. The result is a buyer population that reads GD&T fluently and rejects parts that merely look right.
That population buys a specific kind of turned part. Fab equipment support means gas and vacuum fitting components, probe and test socket pins, sensor bodies and polymer ferrules that cannot shed particles or hold burrs. Launch vehicle and defense work means connector pins, valve spools and slender titanium shafts with full traceability. Swiss turning fits both because the guide bushing supports the bar at the point of cut, so a 3 inch long pin at 0.125 inch diameter comes off straight and concentric to 0.0002 inches TIR, with threads, flats and cross holes finished in one setup on live tooling.
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.
Where Swiss Machining Fits in Chandler
From prototypes to bar-fed production, this is Chandler's Swiss workload.
Semiconductor & Fab Equipment
The equipment ecosystem around Intel Ocotillo and the NXP fab consumes small turned components on maintenance and tooling schedules that never pause: vacuum fitting bodies, gas line ferrules, probe pins, alignment dowels and sensor housings for chambers and handlers. RivCut Swiss turns these from 316L, 6061 and PEEK with as machined finishes near Ra 16 microinches and cleanliness appropriate for fab adjacent hardware, and we run them without an MOQ so a single replacement fitting is as quotable as a thousand.
Defense & Launch Vehicles
Northrop Grumman's Chandler launch vehicle operation and the defense suppliers around it buy turned hardware with paperwork attached: connector pins, fuel system fittings, valve spools and long thin shafts in Ti-6Al-4V, 17-4 PH and 303 stainless. Guide bushing support lets us hold length to diameter ratios over 20 to 1 without taper, and every lot ships with mill certs and first article inspection reports when the program requires them. RivCut is DDTC registered for ITAR controlled work.
Electronics & Embedded Hardware
Microchip Technology's headquarters anchors an embedded electronics scene that extends into east valley startups and ASU spinouts. Their test fixtures, dev boards and enclosures need contact pins, test points, precision standoffs and ferrules in brass, beryllium copper and stainless, usually in 500 to 10,000 piece bar fed runs where per part cost matters. Sub spindle work means a pin with a turned tip on one end and a slotted head on the other never touches a second machine.
What Chandler Engineers Ask Us
Everything Chandler buyers ask before the first PO.
Swiss Machining Beyond Chandler
Swiss Precision, Delivered to Chandler
From first article to bar-fed production, quoting for Chandler starts with one CAD upload.