CNC Turning Services
Precision CNC turning for custom cylindrical and rotational metal and engineering plastic parts, from prototypes to low-volume production, with tight tolerances and documented inspection.
Upload CAD Files for a QuoteTolerances down to ±0.005 mm
Prototypes to Low-Volume Production
Metals & Engineering Plastics
Trusted by companies worldwide
CNC TURNING CAPABILITIES
Precision CNC Turning for Complex Rotational Parts
Our CNC turning capabilities support precision cylindrical components, complex profiles, and consistent production from prototypes to low-volume quantities.
OD & ID Turning
Precision external and internal turning for shafts, sleeves, bushings, and cylindrical components.
Threading & Grooving
Precision threading, grooving, and related features for custom turned components.
Complex Profiles & Features
Precision turning for stepped profiles, bores, tapers, and other complex rotational features.
CNC TURNING MATERIALS
Materials for CNC Turning
We machine a wide range of metals and engineering plastics for precision turned parts, balancing machinability,
strength, corrosion resistance, and cost.
strength, corrosion resistance, and cost.
Aluminum
Aluminum offers excellent machinability, low weight, and corrosion resistance, making it ideal for precision shafts, bushings, spacers, fittings, and other turned components.
Common Grades
6061
6061-T6
7075
5052
6082
5083
Stainless Steel
Stainless steel provides excellent corrosion resistance, strength, and durability, making it well suited for precision shafts, fittings, threaded parts, bushings, and other turned components.
Common Grades
303
304
316
316L
17-4PH
420
Steel
Steel offers high strength, durability, and good machinability for precision turned parts. It is widely used for shafts, pins, bushings, fasteners, sleeves, and other load-bearing components.
Common Grades
1018
1045
4140
4340
12L14
Brass
Brass offers excellent machinability, corrosion resistance, and good dimensional stability. It is widely used for precision fittings, connectors, bushings, threaded parts, valves, and other turned components.
Common Grades
C360
C260
C464
C353
C385
Titanium
Titanium combines high strength, low weight, excellent corrosion resistance, and good performance at elevated temperatures. It is well suited for precision shafts, fasteners, fittings, and other high-performance turned components.
Common Grades
Grade 2
Grade 5
Grade 9
Engineering Plastics
Engineering plastics offer low weight, corrosion resistance, electrical insulation, and good machinability. They are widely used for precision bushings, spacers, rollers, insulators, guides, and other custom turned components.
Common Materials
POM / Delrin
Nylon
UHMW-PE
PC
PEEK
PTFE
CNC TURNING SPECIFICATIONS
CNC Turning Tolerances & Specifications
Our CNC turning capabilities support tight tolerances, precision cylindrical features, and consistent surface quality for prototypes and low-volume production.
Maximum Turning Diameter
Ø400 mm
Maximum Turning Length
500 mm
Standard Tolerance
±0.01 mm Typical
ISO 2768 Available
Tight Tolerance
Down to ±0.005 mm
Upon Request
Surface Roughness
Ra 0.4–3.2 μm
Down to Ra 0.4 μm
Maximum Bore Diameter
Ø400 mm
Maximum Bore Depth
300 mm
Standard Tolerance
±0.01 mm Typical
ISO 2768 Available
Tight Tolerance
Down to ±0.005 mm
Upon Request
Surface Roughness
Ra 0.4–3.2 μm
Down to Ra 0.4 μm
Thread Size Range
M0.8–M32
Metric Threads
Thread Pitch Range
0.5–6.0 mm
Typical Range
Typical Thread Class
6g / 6H Typical
ISO Metric Threads
Groove Width
Down to 0.5 mm
Upon Request
Surface Roughness
Ra 0.4–3.2 μm
Down to Ra 0.4 μm
General tolerances may follow ISO 2768 where applicable. Parts are manufactured and inspected
to customer-specified GD&T, thread requirements, and applicable standards.
SURFACE FINISHING FOR CNC TURNING
Surface Finishing Options
We offer a range of surface finishes to meet your functional, aesthetic, and performance requirements.
As-Machined
Visible machining marks
Anodizing
Protective colored oxide finish
Bead Blasting
Uniform matte appearance
Powder Coating
Durable colored coating
Electropolishing
Smooth and bright finish
Passivation
Enhances corrosion resistance
Black Oxide
Black finish for mild corrosion resistance
As-Machined
Standard CNC-machined finish with visible tool marks.
Typical Finish
Ra 1.6–3.2 μm
Typical Materials
Aluminum, Steel, Stainless Steel
Best For
Prototypes, functional components, fit-check parts
Anodizing
Electrochemical oxide finish that improves corrosion resistance, wear resistance, and appearance.
Typical Finish
Type II / Type III
Typical Materials
Aluminum
Best For
Corrosion resistance, wear protection, decorative parts
Bead Blasting
Creates a uniform matte surface by blasting fine media onto the machined part.
Typical Finish
Uniform Matte
Typical Materials
Aluminum, Steel, Stainless Steel
Best For
Cosmetic parts, glare reduction, pre-anodizing preparation
Powder Coating
Durable dry-powder coating that provides a protective and decorative colored surface.
Typical Finish
Matte / Satin / Gloss
Typical Materials
Aluminum, Steel
Best For
Durable color finishes, outdoor parts, protective housings
Electropolishing
Electrochemical polishing process that smooths the surface and produces a clean, bright finish.
Typical Finish
Smooth / Bright
Typical Materials
Stainless Steel
Best For
Medical parts, food equipment, corrosion-resistant components
Passivation
Chemical treatment that removes surface contaminants and improves the natural corrosion resistance of stainless steel.
Typical Finish
Clean / Satin
Typical Materials
Stainless Steel
Best For
Corrosion-resistant parts, medical components, food-processing equipment
Black Oxide
Chemical conversion coating that produces a dark black finish with mild corrosion resistance and minimal dimensional change.
Typical Finish
Matte Black
Typical Materials
Carbon Steel, Alloy Steel
Best For
Machine components, tooling, fasteners, low-reflective parts
Other finishes and custom requirements are available upon request. Please indicate your surface finish requirements on your drawing or RFQ.
CNC TURNED PARTS
Examples of CNC Turned Parts
Explore examples of precision CNC turned components we manufacture for industrial applications.
Precision Shafts
Custom turned shafts and cylindrical components with tight tolerances for industrial applications.
Bushings & Sleeves
Precision turned bushings, sleeves, and rings for mechanical assemblies and equipment.
Flanges & Connectors
CNC turned flanges and connectors with accurate dimensions and reliable performance.
Threaded Components
Custom threaded parts including screws, fittings, and precision mechanical components.
Rotary Components
Machined rotary parts with bores, grooves, and complex cylindrical features.
Small Turned Parts
High-precision CNC turned parts for prototypes and low-volume production.
Need Precision CNC Turned Parts?
Send us your CAD files and project requirements for engineering review and quotation.
FAQ
Frequently Asked Questions
Common questions about our CNC turning capabilities, tolerances, materials, and production.
What is CNC turning best suited for?
CNC turning is ideal for cylindrical and rotational parts such as shafts, pins, bushings, sleeves, spacers, fittings, and threaded components requiring accurate diameters and concentricity.
How tight can CNC turning tolerances be?
Typical CNC turning tolerances are around ±0.01 mm. Depending on material, geometry, part size, and critical features, tighter tolerances down to ±0.005 mm may be achievable after engineering review.
What materials can you CNC turn?
We machine aluminum, stainless steel, carbon and alloy steels, brass, titanium, and engineering plastics such as POM, nylon, UHMW-PE, PEEK, PTFE, and PC.
Can you machine threads, grooves, and complex turned features?
Yes. We can machine internal and external threads, grooves, tapers, bores, shoulders, stepped diameters, and other precision turned features. Feasibility depends on part geometry, tool access, and machining requirements.
What file formats can I send for a quotation?
We accept common 3D and 2D formats including STEP, STP, IGES, PDF, DWG, and DXF. STEP files are preferred for most CNC turning projects.
Do you support prototypes and low-volume production?
Yes. We support one-off prototypes, small batches, low-volume production, and repeat orders with consistent process control and inspection.