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.
From First Article to Full Rate for Vancouver, WA Teams
Most Swiss work out of Vancouver follows the same arc: a handful of prototype pins for a fixture or a tool qualification, then a few hundred for pilot builds, then standing orders in the thousands once the line is running. That arc is exactly what a sliding headstock lathe is built for. The same program that cuts your first five pieces runs the ten thousandth, so there is no requote and no process change between prototype and production, just a falling piece price as bar stock and lights out running take over.
The local demand is real and specific. SEH America has grown silicon wafers in Vancouver since 1979, WaferTech runs a full production fab a few miles east in Camas, and Analog Devices and Kokusai both keep operations in the area. Fab equipment and the toolmakers who support it consume small turned hardware constantly: locating pins ground round to tenths, gas system ferrules, ceramic seated standoffs and vacuum rated fittings in 316L. Down at the Port of Vancouver USA and at long standing manufacturers like Columbia Machine, the mix shifts to valve spools, bushings and slender shafts for heavy equipment that cannot sit idle.
RivCut serves all of it from our Union City, California shop, about one to two business days by ground from Vancouver. No minimum order for the prototype end, structured volume pricing for the production end and the same guide bushing supported accuracy at both.
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.
Swiss Machining Demand Across Vancouver
How demand for small turned parts breaks down across Vancouver.
Semiconductor & Wafer Fab Equipment
Wafer handling and process equipment is dense with small turned components, and the cleanliness and tolerance expectations are severe. Locating pins that register a cassette must repeat to a few ten thousandths of an inch, gas delivery ferrules cannot shed particles and standoffs inside a tool must be burr free and dimensionally identical across hundreds of pieces. RivCut Swiss turns this class of part from 316L, 303, titanium and PEEK for teams supplying fabs like SEH America and WaferTech, with concentricity held to 0.0002 inches TIR and finishes near Ra 16 microinches as machined.
Industrial Equipment & Port Operations
Columbia Machine has built concrete products machinery in Vancouver for generations, and the Port of Vancouver USA moves wind energy components, autos and bulk cargo across equipment that wears out precision parts on its own schedule. Hydraulic valve spools, grease fittings, wear bushings and long thin shafts all suit Swiss geometry, because the guide bushing supports the bar at the cutting point and a shaft with a length over 20 times its diameter comes off straight. We machine replacements from 4140, 17-4 PH and bronze to print, or reverse engineer from a worn sample when the OEM drawing is long gone.
Medical Devices & Electronics
PeaceHealth Southwest Medical Center anchors a healthcare economy on the north bank of the Columbia River, and the Portland metro medtech and electronics scene reaches across the bridge into Clark County. Swiss machining covers the micro end of that work: bone screws and cannulated pins in Ti-6Al-4V, luer fittings in 316L, connector and contact pins for instrument electronics and PEEK insulator bodies under half an inch in diameter. Live tooling and a sub spindle finish these parts in one setup, so cross holes, flats and back side features arrive complete with no second operation to stack tolerance.
Questions Vancouver Teams Ask First
Quoting, tolerances and logistics for Vancouver projects.
Swiss Turning Services Near Vancouver
Put Our Swiss Lathes to Work for Vancouver
One upload gets Vancouver teams pricing, lead times and a guide bushing feasibility check.