Small
Diameter PartsØ3–32 mm typical bar range
Core Capability
Swiss CNC Turning Is Our Core Strength
High-Precision Machining for Small, Complex Components
Zhuocheng specializes in Swiss-type CNC turning for small-diameter, high-precision components requiring tight dimensional control, complex features and stable repeat production. From precision shafts and pins to adapter fittings, sleeves and threaded components, our equipment and process control are built for consistent production.
Ø3–32 mmTypical Bar Diameter
Up to 300 mmTypical Machining Length
±0.005 mmDrawing-Dependent Tolerance
50+Swiss-Type CNC Machines
Why Swiss CNC Turning?
Swiss-type CNC turning is not just another machining process. It is purpose-built for the parts that conventional turning struggles with.
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Stable Support for Slender Parts
Guide-bushing support near the cutting zone helps reduce deflection when machining long, small-diameter components — maintaining concentricity and dimensional stability.
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Complex Features in Fewer Setups
Turning, drilling, threading, grooving and other operations can be combined in one machining route — reducing handling and improving feature-to-feature accuracy.
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Built for Repeat Production
Stable processes, consistent tooling and bar-feed capability make Swiss CNC turning suitable for high-volume precision components with repeatable quality.
When Swiss CNC Turning Makes Sense
Not every part needs Swiss turning. But when these characteristics are present, Swiss CNC is often the best process choice.
Long
& Slender GeometryHigh length-to-diameter ratios
Complex
Turned FeaturesThreads · Grooves · Shoulders · Cross Holes
Tight
Assembly RequirementsConcentricity · Dimensional Control · Repeatability
Swiss CNC Turning Capability
Real parameters from our confirmed production range — not placeholder values.
- Bar Diameter
- Ø3–32 mm
- Maximum Machining Length
- Up to 300 mm
- Typical Tolerance
- Down to ±0.005 mm*
- Surface Roughness
- Ra 0.4–1.6 μm*
- Production Volume
- Prototype to Mass Production
- Machine Quantity
- 50+ Swiss-Type CNC Machines
Materials
Stainless Steel, Brass, Aluminum, Carbon/Alloy Steel, Engineering Plastics
* Actual achievable tolerance and surface finish depend on material, geometry, drawing requirements and machining process.
Products
What We Manufacture with Swiss CNC
These are the product families we produce on Swiss-type CNC machines — all made to customer drawings.
Precision Shafts & Pins
Stepped shafts, precision pins, guide pins, motor shafts and custom small-diameter components.
Precision Adapter Fittings
Adapters, hose fittings, threaded connectors and other precision turned connection components.
Bushings & Sleeves
Bushings, spacers, sleeves and rings with controlled ID/OD relationships.
Custom Small Precision Parts
Complex small turned components manufactured to customer drawings with multi-feature capability.
Swiss CNC Can Do More Than Turning
Our Swiss-type machines are equipped with live tooling — enabling multiple operations in a single setup, reducing handling and improving feature accuracy.
Threading
External and internal threads — metric, UNF, UNC, BSP, NPT and custom profiles.
Knurling
Functional and cosmetic knurling for grip, positioning and assembly features.
Drilling
Axial and cross drilling for lubrication, pin and assembly features.
Grooving
Precision grooves, O-ring grooves and retention features.
Tapping
Internal threaded features with standard or custom thread profiles.
Additional Operations
Slotting, deburring, back-working and other post-machining features per drawing.
Materials for Swiss CNC Turning
Common materials we routinely machine on Swiss-type CNC equipment.
Stainless Steel
303 · 304 · 316
Brass & Copper
C3604 · C110 · Copper Alloys
Aluminum
6061 · 7075
Steel
Carbon Steel · Alloy Steel
Engineering Plastics
POM · PEEK · Nylon
Other materials available based on drawing and application requirements.
Swiss CNC Turning vs. Conventional CNC Turning
Swiss CNC and conventional CNC turning each have their strengths. Here is a practical comparison to help determine the right process for your part.
Part Characteristic
Swiss CNC
Conventional CNC
Small Diameter Parts
Long / Slender Parts
Complex Small Features
High-Volume Small Parts
Larger Diameter Parts
Choose Swiss CNC when small diameter, slender geometry, complex features or high-volume precision production are critical. Choose conventional CNC turning for larger diameters and non-slender geometries.
Swiss CNC Turning in Practice
An anonymized example showing how Swiss CNC turning solves a real manufacturing challenge.
POM Smart Swimming Device Component
- Application
- Smart Sports Equipment
- Material
- Black POM (Delrin)
- Challenge
- High concentricity requirement with knurled surface, internal thread, blind holes and multi-step geometry — all in one component.
- Process
- Swiss-type CNC turning with live tooling for threading, knurling and cross-drilling in a single setup.
- Result
- Stable multi-year repeat production with consistent concentricity, knurl quality and thread accuracy across lots.
Quality Control for Swiss Turned Parts
Every Swiss turned part goes through a structured quality control process — not just final inspection.
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01
Incoming Material
Material and certificate verification
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02
First Article
Critical dimensions and features checked
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03
In-Process QC
Process stability and critical dimensions
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04
Final Inspection
Final dimensional and appearance checks
Inspection Equipment: CMM · Optical Measurement · Micrometers · Thread Gauges · Roughness Tester
Frequently Asked Questions
What is Swiss CNC turning?
Swiss-type CNC turning is a machining process where the bar stock is fed through a guide bushing close to the cutting zone. This provides continuous support for the material, making it especially suitable for small-diameter, long and slender precision components.
When should I choose Swiss CNC instead of conventional CNC turning?
Choose Swiss CNC when your part has a small diameter (typically Ø3–32 mm), a high length-to-diameter ratio, complex turned features (threads, grooves, cross-holes), or requires high-volume precision production. For larger diameters or non-slender parts, conventional CNC turning may be more appropriate.
What diameter range can you machine?
Our typical bar diameter range is Ø3–32 mm with machining length up to 300 mm. For diameters outside this range, please send the drawing for engineering review — we also have conventional CNC turning capacity for larger parts.
Can Swiss CNC produce threaded and knurled components?
Yes. Our Swiss-type machines are equipped with live tooling that enables threading (external and internal), knurling, cross-drilling, milling and tapping — all in a single setup, improving feature-to-feature accuracy.
What materials can you machine on Swiss CNC?
We routinely machine stainless steel (303/304/316), brass (C3604), aluminum (6061/7075), carbon steel, alloy steel and engineering plastics (POM, PEEK, Nylon). Other materials can be reviewed based on your drawing.
Can you handle prototype and mass production?
Yes. We support everything from single-piece prototypes for design validation through pilot batches and long-term mass production. Bar-feed capability makes Swiss CNC particularly efficient for repeat production of small precision parts.
Can you inspect concentricity and critical dimensions?
Yes. Concentricity, diameter control and critical dimensions are inspected using CMM, optical measurement, micrometers and thread gauges. First Article Inspection (FAI) is standard before production proceeds.
Can you provide secondary operations and surface finishing?
Yes. Secondary operations like deburring, cleaning and surface finishing (plating, anodizing, passivation, polishing) are available. For Swiss turned parts, most secondary machining features (threading, knurling, cross-drilling) are completed in the same setup.
NEXT STEPHave a Small Precision Part Drawing?
Send the drawing, material, quantity and critical tolerances. Engineering will confirm whether Swiss CNC is the best process route.