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What is CNC turning?

What is CNC turning?

CNC turning produces parts by mounting a blank on a rotating chuck and removing material using stationary cutting tools. This technology is ideal for manufacturing parts with symmetry along their center axis. Turned parts are typically produced faster (and at a lower cost) than milled parts.

Maximum part size for CNC turning


Part size limitations

Metric units

Imperial units

Maximum part diameter431 mm17 in
Maximum part length990 mm39 in
Maximum swing over the carriage350 mm13.7 in
Maximum spindle through-hole40 mm1.5 in
Maximum speed: 1700RPM, Motor power: 640W

Gallery of CNC Turning parts

Below are a small selection of the CNC machined parts and end-use components we produce for our customers.

Available materials for CNC Turning

Metals

Metals

A wide range of metals for CNC machining, with applications in multiple industries. Ideal for both one-off prototypes and end-use custom parts.
Plastics

Plastics

A wide range of plastics for CNC machining, with applications in multiple industries. Ideal for both one-off prototypes and end-use custom parts.
CNC milling surface finishes

CNC milling surface finishes

Improve your part’s performance by selecting high-quality surface finishes that enhance the roughness, hardness, chemical resistance and cosmetic features of your finished component.

CNC turning tolerances

We follow ISO 2768 standards for CNC machining.


Limits for nominal size

Plastics (ISO 2768- m)

Metals (ISO 2768- f)

0.5mm* to 3mm ±0.1mm ±0.05mm
Over 3mm to 6mm ±0.1mm ±0.05mm
Over 6mm to 30mm ±0.2mm ±0.1mm
Over 30mm to 120mm ±0.3mm ±0.15mm
Over 120mm to 400mm ±0.5mm ±0.2mm
Over 400mm to 1000mm ±0.8mm ±0.3mm
Over 1000mm to 2000mm ±1.2mm ±0.5mm
Over 2000mm to 4000mm ±2mm
*Please clearly indicate tolerances for nominal sizes below 0.5mm on your technical drawing.

We have high standards for CNC turning

We manufacture your custom parts according to strict manufacturing standards and ensure all parts and processes adhere to The Sunnyhowe Standard.

  • Several surface finishes are available to improve the cosmetic quality of your parts after machining.

  • Every custom part gets checked on site by our manufacturing partners according to our guidelines.

  • Inspection reports and other types of quality documentation are available on request to assure the highest quality and compliance.

Browse CNC turning surface finishes

Production Workshop

Our team possesses extensive knowledge and experience in the field, ensuring precision and quality in every project we undertake.

Certification system
IATF16946 iso9001
We’re trusted by
apple intel hp vw dell

What is Sunnyhowe

Sunnyhowe is a leading CNC parts processing factory, which has been serving the high-end manufacturing industry for over 11 years. We are committed to providing precise, efficient, and customized precision parts solutions for high-end manufacturing.

More about Sunnyhowe

FAQs
  • Do I need a technical drawing for CNC machining?

    While technical drawings aren't used for obtaining g-code, they are vital for quality control. Technical drawings are also essential when your part contains threads, tolerances and/or finishes on specific surfaces.
  • What does a technical drawing have to include?

    A standard technical drawing has to include essential information like a title bar, views of the parts—including the orthogonal view, cross-sectional view and isometric view—coordinate details, all requirements and any additional annotations. Most importantly, make sure the title block does not contradict the information in the CAD file you've uploaded to the quote builder.
  • Do technical drawings need notes to the manufacturer?

    Notes to the manufacturer are not technically mandatory, but adding them to your technical drawing can be crucial for conveying information that wouldn’t fit in the blueprints themselves.
  • How to provide technical drawings to the manufacturer?

    You can easily upload a PDF of your technical drawing in the Part Specifications section of the upload attachment via the "Upload Attachment" form on our Contact Us form. Or email us directly.

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