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.
Certified Small Turned Parts for Fort Worth Programs
Paperwork comes first in Fort Worth purchasing, and for good reason. Lockheed Martin's F-35 final assembly line runs at over 150 aircraft a year, and its quality clauses cascade down through every sub-tier supplier in Tarrant County: ITAR registration, controlled data handling, EN 10204 3.1 mill certs and AS9102 first article inspection on new part numbers. Bell Textron layers Nadcap expectations onto its V-280 Valor and legacy rotorcraft supply chain. A Swiss shop that cannot produce that documentation is not really quoting Fort Worth work.
The parts themselves are exactly what sliding headstock lathes were built for. Fighter and tiltrotor programs consume electrical contact pins, weapons bay sensor housings, hydraulic fittings and slender actuator components in bar-fed volumes, most of them under an inch in diameter with concentricity callouts a conventional lathe struggles to repeat. On the medical side, Alcon's ophthalmic surgical device operations push feature sizes even smaller, with instrument tips and cannulated components measured in thousandths.
RivCut serves Fort Worth from our Union City, California shop, no minimums, bar stock from 0.020 to 1.50 inches, with guide bushing support that holds diameters to ±0.0001 inches and length-to-diameter ratios past 20:1. Ground freight reaches north Texas in 3 to 4 business days, and air shipping is available when a line-down situation cannot wait.
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 Turned Parts for Fort Worth Industries
The work Fort Worth engineers quote most often, by industry.
Defense & Tactical Aircraft
Every F-35 in the world takes final shape in Fort Worth, and Elbit Systems of America builds helmet-mounted displays and EW systems nearby, so the local Tier 2 network buys turned hardware with the strictest receiving inspection standards in the industry. RivCut Swiss turns gold-plated-ready contact pins, connector shells, sensor housings and lockwire-drilled fasteners from 303 and 17-4 PH stainless, titanium and beryllium copper, with ITAR-compliant handling, full lot traceability and AS9102 first articles on request.
Rotorcraft & Aerospace Systems
Bell Textron's tiltrotor campus and the aerostructure suppliers around it, including L3Harris operations in the region, need flight-critical small turned parts: fuel system fittings, transmission oil jets, clevis pins and instrumentation bosses. These parts carry concentricity and finish callouts that reward single-setup machining, so we run them across live tooling and a sub-spindle in one cycle, holding 0.0002 inches TIR and Ra 16 microinch finishes as machined.
Medical & Ophthalmic Devices
Alcon manufactures ophthalmic surgical devices in Fort Worth, and Cook Children's Medical Center anchors pediatric device development across Tarrant County, which means local engineers buy some of the smallest precision turned parts in medicine. Cataract and retinal instrument components, luer fittings, cannulated tips and micro electrode bodies in 316L, titanium and PEEK all sit squarely in Swiss territory, where guide bushing support keeps a 0.040 inch feature concentric instead of hopeful.
Fort Worth Swiss Machining Questions
Answers on quoting, materials and delivery to Fort Worth.
Swiss Turning Around Fort Worth
Ready to Quote Your Fort Worth Swiss Project?
Send a STEP file and a print. We review the geometry, confirm guide bushing setup and ship finished parts to Fort Worth.