CNC Turning Services
APY CNC manufactures custom CNC turned parts from your drawings — including shafts, pins, bushings and other rotationally symmetric components. Turning is selected according to the part geometry and agreed specifications.
CNC Turning Overview
CNC turning (lathe machining) rotates the workpiece against a stationary cutting tool to produce cylindrical, conical and rotationally symmetric features. It is efficient for parts where the primary shape is defined by diameter and length, such as shafts, pins, bushings and sleeves.
Turning is well suited to axis-symmetric parts because the rotating stock produces round features naturally. Where a part also needs off-axis holes, flats or milled features, turning may be combined with milling in a single process plan. Diameters, lengths and tolerances are defined per the drawing and confirmed with the factory.
Typical Turned Parts
Common rotationally symmetric components produced by CNC turning.
Shafts
Stepped and shouldered shafts with diameters, grooves and chamfers.
Pins
Small, precise pins and dowels with tight diameter control.
Bushings & Sleeves
Bored internal diameters with turned or threaded external features.
Connectors & Fittings
Threaded and knurled cylindrical components in brass and alloys.
Cylindrical Components
Project-specific round parts evaluated against your drawings.
Hybrid Parts
Turned bodies with added milled features in one plan.
Compatible Materials
Material selection matched to your design, mechanical requirements and application.
Aluminum
6061-T6, 7075-T6 and other grades per drawing.
DetailsStainless Steel
304, 316, 17-4 PH and similar grades.
DetailsBrass
C360 and specified brass alloys.
DetailsCopper
C110 and other grades per availability.
DetailsCarbon & Alloy Steel
Grade follows your drawing and required properties.
DetailsEngineering Plastics
POM, PA, PEEK where machinable.
DetailsGrade examples do not imply all grades are stocked. Actual material availability and machining scope are confirmed per project.
Diameters and Lengths
The achievable diameter and length ranges are configured by the factory and depend on the actual lathe configuration, including bar capacity and chuck size. We do not publish fixed numbers; instead, the working range is confirmed per project.
For quotation, please provide diameters and lengths per your drawing or specification. Our engineering review confirms whether the part fits within the available turning envelope and process plan.
Tolerances
Achievable turning tolerances are evaluated per project and depend on the part's diameter, length, material, feature geometry and inspection requirements. Tighter tolerances on critical diameters may require additional setups and measurement.
For quotation, please specify tolerances per your drawing. Our engineering review confirms which features can be held to the requested tolerance on the available equipment, and we will flag any feature that needs discussion.
Surface Finishing
Finishing selected according to material, appearance and functional requirements.
Passivation
Corrosion resistance for stainless steel turned parts.
DetailsAnodizing
Protective and decorative finish for aluminum.
DetailsBead Blasting
Uniform matte surface that reduces tool marks.
DetailsPlating
Zinc, nickel or other platings per requirement.
DetailsPolishing
Smooth, bright surfaces for cosmetic areas.
DetailsAll Finishes
Review the full finishing options list.
DetailsNot every finish suits every material. Finishing is evaluated against your drawing, color, film thickness, roughness and acceptance criteria.
Quality Inspection
Inspection activities planned around your critical diameters and requirements.
- Incoming Material Verification — material identification and incoming checks as applicable.
- In-Process Inspection — checking critical diameters and lengths during production when required.
- Final Inspection — dimensional and visual checks against agreed specifications.
- Inspection Documentation — reports may be provided when agreed for the project.