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High Precision CNC Turning Service on Metal and Plastic

How Does CNC Lathe Turning Work

lathe turning

CNC Turning Service

mill-turning

CNC Mill-Turning Service

CNC Turning Design Guidelines and Capabilities

Maximum and Minimum Dimensions

We offer single-side 3-axis machining, single-side 5-axis machining, with a minimum feature size and nominal thickness of 0.039 in (1 mm).

 SizeUSMetric
Maximum DimensionsDiameter12.6 in.320mm
Length5.91 in.150mm
Minimum DimensionsDiameter12.6 in.320mm
Length5.91 in.150mm
Wall Thickness0.02 in.0.51mm
Angle30°30°
Tolerances +/- 0.00197 in.+/- 0.05mm

*Hard metals: Titanium (6Al-4V), Stainless Steels (303, 304, 316, 17-4PH), Alloy Steel (4140)
**Denotes two-sided machining only

CNC Turning Materials – All the Possible

Turning Metal

Aluminum, Brass, Copper, Stainless Steel, Alloy Steel, Steel Mild, Low Carbon,Titanium

aluminum

Aluminum

Stainless steel cnc milling

Stainless steel

brass cnc milling

Brass

custom titanium milled parts with sandblasting finish

Titanium

Versatile and affordable for shafts, with passivation enhancing corrosion resistance by 40%

Turning Plastic

ABS丨Acetal 丨CPVC丨 HDPE | LDPE丨 Nylon丨 PEEK丨 PEI | PET丨PMMA丨Polycarbonate | Polypropylene 丨 POM(Delrin) | PPSU 丨HIPS丨 PSU丨 PTFE丨 PVC

Low-friction (coefficient 0.2) and dimensionally stable for gears, machined to tight tolerances

POM

Abrasion-resistant (wear rate 10x lower than steel) for bearings, supporting anodizing-like dyes

Nylon

Impact-resistant (tensile 40MPa) and printable, great for housings with powder coating

ABS

High-performance (temp 260°C, strength 100MPa) for aerospace, biocompatible with polishing

PEEK

Acrylic PMMA machined parts

Acrylic

CNC Turning Surface Finish

Surface finish options we can provide

Polishing

Polishing

A precision mechanical finishing process that smooths and refines metal surfaces to a high-gloss or satin sheen, polishing reduces surface roughness, removes abrasions, and enhances part appearance and wear resistance without sacrificing dimensional accuracy.

Sandblasting

A high-velocity abrasive blasting technique that propels fine media against the workpiece to uniformly remove scale, rust, and surface contaminants, sandblasting creates a clean, textured profile ideal for improved coating adhesion and consistent matte finishes.

Painted Finish

Painted Finish

A liquid coating applied via spray, dip, or brush that cures to form a durable protective film, painted finishes offer customizable color options, outstanding chemical and weather resistance, and a uniform appearance across complex geometries.

Anodizing

Anodizing

An electrochemical conversion process that builds a controlled oxide layer on aluminum alloys, anodizing delivers enhanced corrosion resistance, increased surface hardness, and a decorative, UV-stable finish available in a spectrum of colors without adding significant thickness.

Passivation chemical treatment for stainless steel medical implants, forming passive films to increase resistance by 40% via ISO 9001 certified processes.

Passivation

A controlled chemical treatment that removes free iron and enhances the natural oxide layer on stainless steels, passivation delivers superior corrosion resistance and a clean, non-contaminating finish without altering part dimensions.

Black oxide finish for aesthetic appeal on turned parts

Black Oxide Coating

A salt-bath conversion process that produces a uniform, low-reflective black finish on ferrous metals, black oxide coating improves corrosion protection, minimizes light glare, and maintains tight machining tolerances.

CNC Turning Production Process

CHIHENG MACHINING

We have an entire manufacturing process for all product mass production, professional engineers team and the best CNC machining, thus we can control the quality and the lead time for your products for production 

Process engineering phase in custom machining, featuring CAD design for subtractive manufacturing of precision fabrication components with DFM feedback.

1. Process Engineering

Raw material ordering step for rapid prototyping, showcasing material selection from 50+ alloys in lean manufacturing supply chains.

2. Raw Material Ordering

Programming commissioning for CNC turning and milling, optimizing code for multi-axis milling and tight tolerances (±0.005mm) in bespoke engineering.

3. Programming Commissioning

1st sample approved milestone in on-demand fabrication, displaying custom components post-inspection with Ra surface roughness verification.

4. 1st Sample Approved

Packaging after 2nd inspection for industrial enclosures, prepared by global shipping partners with full traceability in cost-effective outsourcing.

8. Packaging After 2nd Inspection

Surface finished application like anodizing and coating, achieving Ra surface roughness (0.4-3.2μm) for enhanced durability.

7. Surface Finished

Initial sample inspection using CMM for medical implants, ensuring ISO 9001 certified quality and post-machining treatments readiness.

6. Initial Dample Inspection

Mass production ramp-up via batch scalability, illustrating EV R&D parts scaling on multiple mills and lathes for lead time optimization and efficiency.

5. Mass Production

Major Industries Served
By CNC Turning Services

All industrial you can get CNC parts from our service, we are the best choice for you!

FAQs
for CNC Turning

What are the minimum and maximum dimensions you can machine?

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CNC Machining Resources

Here are the industries for the parts you can see in different realm.

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