Custom CNC Turning Services for Precision Turned Parts
Factory-direct CNC turning for shafts, bushings, pins, spacers, fittings and threaded components. Upload your CAD files for DFM review, tolerance evaluation, thread inspection planning and a 12–24h RFQ response.
In-House CNC Turning
Factory production workflow for custom turned parts.
Diameter & Thread Control
OD/ID, thread depth, grooves and shoulder positions reviewed.
±0.01 mm Upon Review
Available for selected critical diameters and features.
Inspection Reports
Dimensional reports, thread gauges and material certificates available.
Prototype to Production
Engineering samples, low-volume builds and repeat orders.
| Do you accept STEP files? | Yes. STEP, STP, IGS, X_T, SLDPRT, DWG, DXF and PDF drawings are supported. A 2D drawing is recommended for threads, tolerances and surface finish requirements. |
| Can you make threaded parts? | Yes. Internal and external threads can be reviewed. Please specify thread type, pitch, depth, tolerance and any gauge requirements. |
| Can you inspect critical diameters? | Yes. OD/ID, thread features, groove width, shoulder positions, length and concentricity can be checked based on project requirements. |
| Can you support surface finishing? | Yes. Common finishes include anodizing, black anodizing, passivation, electropolishing, plating, polishing and bead blasting depending on material. |
| Do you support prototypes and low-volume orders? | Yes. CNC turning projects can be reviewed for prototypes, pilot runs, low-volume production and repeat custom turned parts. |
| Is NDA available? | Yes. NDA can be arranged before file review when your drawings or project information require confidentiality. |
Turning Capability
CNC Turning Equipment & Manufacturing Range
Before quoting, our engineers review bar stock, diameter, length-to-diameter ratio, thread requirements, groove geometry, tolerance risk and inspection needs.
| Capability Area | Manufacturing Range | Best For |
|---|---|---|
| CNC Lathe Turning | Facing, OD turning, ID boring, grooving, parting, chamfering and general cylindrical machining. | Shafts, pins, rollers, spacers, sleeves, bushings and cylindrical mechanical parts. |
| Threaded Part Turning | Internal and external threads, thread reliefs, custom fittings and connector features based on drawing requirements. | Fittings, inserts, couplings, fastener-related components and sealing-interface parts. |
| Mill-Turn Machining | Turning with secondary milling features such as flats, cross holes, slots and side features. | Turned components that also require milled flats, cross-drilled holes or multi-feature alignment. |
| Swiss Machining Support | Small-diameter precision turned parts can be reviewed for Swiss machining when geometry and quantity fit the process. | Small pins, shafts, sleeves, connectors and high-repeatability precision turned parts. |
| Typical Tolerance | Standard tolerances based on drawings and ISO 2768 requirements. Tight diameters down to ±0.01 mm may be reviewed for selected features. | Critical OD/ID, bearing fits, threaded features, groove dimensions and shoulder positions. |
| Inspection Equipment | Micrometers, calipers, thread gauges, pin gauges, plug gauges, surface roughness checks and CMM inspection when required. | Projects requiring diameter control, thread verification, inspection records, material certificates or first article inspection. |
Why Choose Baosheng
Built for Engineering Buyers
The CNC turning workflow is designed around drawing review, manufacturability feedback, diameter and thread inspection, material selection, finishing coordination and clear RFQ communication.
Factory-direct turning workflow
Engineering review and production coordination handled within one manufacturing workflow.
Thread and diameter review
OD/ID, thread depth, grooves, shoulders and concentricity risks are reviewed before machining.
Prototype to low-volume production
Suitable for engineering samples, pilot builds, bridge production and repeat custom parts.
Inspection documentation available
Dimensional reports, thread gauge checks, material certificates and FAI can be arranged based on project requirements.
Process Fit
When CNC Turning Is the Right Process
CNC turning is suited for round or cylindrical components where the part rotates while cutting tools create diameters, shoulders, grooves, bores, tapers and threads. It is often the most efficient process for shafts, bushings, pins, spacers and fittings.
For flat surfaces, pockets, plates, housings or brackets, CNC milling service may be more suitable. Parts with both rotational and milled features can be reviewed for mill-turn machining.
Turning Operations
CNC Turning, Threading and Mill-Turn Support
The turning strategy is selected based on diameter, length, material, thread requirements, secondary features, tolerance and production quantity.
01
Precision CNC Turning
02
Threaded Part Turning
03
Mill-Turn and Swiss Machining Support
Part Types
Custom CNC Turned Parts We Manufacture
Baosheng supports CNC turned parts for mechanical assemblies, robotics, electronics, medical devices, automotive components and industrial equipment. Send drawings so our engineers can review diameter, thread, groove and surface finish requirements.
- Shafts
- Bushings
- Pins
- Sleeves
- Spacers
- Standoffs
- Rollers
- Fittings
- Threaded inserts
- Connectors
- Valve components
- Nozzles
- Couplings
- Sensor bodies
- Motor shafts
- Robotic joint components
Materials & Finishes
CNC Turning Materials and Finishing Options
Material affects machinability, thread quality, tolerance stability, corrosion resistance, surface finish and cost. Our team can review your application and recommend practical alternatives when strength, friction, conductivity or appearance requirements are unclear.
Finishing is coordinated after turning to control corrosion resistance, wear, appearance and assembly requirements.
Aluminum CNC Machining
Spacers, sleeves, lightweight shafts and anodized components.
Stainless Steel CNC Machining
Shafts, pins, medical components and corrosion-resistant parts.
Brass CNC Machining
Fittings, inserts, connectors and precision threaded parts.
Copper CNC Machining
Conductive pins, electrical components and thermal parts.
Titanium CNC Machining
Lightweight high-strength turned components.
PEEK Machining
High-performance plastic components for demanding environments.
Black Anodizing
Common for aluminum spacers, sleeves and cosmetic parts.
Passivation
Corrosion resistance for stainless steel turned parts.
Need help with material, thread or finish requirements?
Send your CAD files and our engineers will review turning feasibility, diameter risk, thread requirements, material options and finishing before quoting.
Quality Control
Diameter, Thread and Concentricity Inspection
CNC turned parts often depend on controlled OD/ID, thread quality, groove geometry, shoulder position, straightness and surface finish. Each drawing is reviewed before production to define critical dimensions and inspection methods.
Drawing Review
Critical diameters, threads and fits identified.
DFM Feedback
Grooves, thin walls and long-shaft risks reviewed.
Material Check
Material grade and certificate needs confirmed.
First Article
Initial part checked before batch production.
In-Process QC
OD/ID, threads and key lengths checked.
Final Inspection
Gauges, micrometers or CMM based on drawing.
Report
Dimensional report and inspection records upon request.
Application Proof
CNC Turning Case Studies
A strong CNC turning case should show the part type, material, turning operation, thread or diameter challenge, inspection method and production result.
| Project | Material / Process | Challenge | Inspection / Result |
|---|---|---|---|
| Stainless Steel Drive Shaft for Industrial Equipment | 304 stainless steel · CNC turning + grooving · passivation · 300 pcs | Controlled bearing-fit diameter, groove location and corrosion resistance for repeated assembly. | In-process micrometer checks, final diameter report and passivation review; stable bearing fit across batch. |
| Brass Threaded Connector for Electronics Assembly | Brass · CNC turning + internal threading · light polishing · 1,000 pcs | Internal thread consistency, clean entry chamfer and controlled sealing surface were required. | Thread gauge inspection, controlled deburring and final visual inspection for sealing-face quality. |
| Black Anodized Aluminum Spacer Set | 6061 aluminum · CNC turning · black anodizing · 2,000 pcs | Outer diameter consistency, cosmetic anodized finish and repeatable assembly stack height. | OD and length sampling inspection before anodizing; post-finish visual inspection before packaging. |
| PEEK Bushing for Motion Assembly | PEEK · precision CNC turning · deburring · 150 pcs | Low-friction bore, clean edge finish and stable dimensions after machining plastic material. | Plug gauge and ID checks used for bore control; parts deburred and packed to protect functional surfaces. |
Project Workflow
How to Order CNC Milled Parts
1.Upload CAD
Send STEP, STP, IGS, X_T, SLDPRT or drawings.
2.Engineering Review
We check material, OD/ID, threads, tolerances and manufacturability.
3.Quote
Receive price, lead time and production notes.
4.Turning
CNC turning starts after drawing and order confirmation.
5.Inspection
Critical diameters, threads and features are inspected.
6.Delivery
Parts are packed and shipped for your production schedule.
Industries
CNC Turning for Precision Engineering Applications
Medical CNC Machining
Stainless steel and titanium turned components, fixtures and device-related mechanical parts.
Automotive CNC Machining
Bushings, shafts, spacers, fittings and prototype components for vehicle assemblies.
Industrial Equipment Machining
Rollers, couplings, valve parts, shafts and durable turned components for machinery.
DFM Guidance
Design Details That Affect CNC Turning Cost
Cost and lead time are driven by material, bar stock size, diameter, length, thread complexity, groove geometry, tolerance zones, surface finish and inspection requirements.
- Clearly define critical OD, ID, thread and shoulder dimensions.
- Specify thread type, pitch, depth and tolerance requirements.
- Avoid overly deep narrow grooves when design allows.
- Long slender shafts may require additional support or process review.
- Apply tight tolerances only to functional or assembly-critical features.
For broader pricing factors, review CNC machining cost.
Your questions answered
CNC Milling FAQs
What information do you need for an accurate CNC turning quote?
For the most accurate quote, send 3D CAD files, a 2D drawing if tolerances or threads are important, material, quantity, surface finish, target lead time and any inspection requirements.
Can you quote without a 2D drawing?
Yes, we can often provide an initial quote from a 3D CAD file. A 2D drawing is recommended for threads, tight diameters, surface finish, special materials and inspection requirements.
Can you make threaded CNC turned parts?
Yes. We can manufacture CNC turned parts with internal and external threads. Please provide thread type, pitch, depth, tolerance and any gauge requirements in the drawing.
What materials can Baosheng CNC turn?
We can CNC turn aluminum, stainless steel, steel, brass, copper, titanium and engineering plastics such as POM, PEEK, nylon, PTFE and PC.
What tolerances can you achieve for CNC turned parts?
Tolerance depends on material, geometry, diameter, length-to-diameter ratio and inspection method. Tight diameters down to ±0.01 mm may be reviewed for selected features.
Do you support prototype and low-volume CNC turning?
Yes. Baosheng supports CNC turning for engineering prototypes, low-volume production, pilot builds and repeat custom turned parts.
Do you ship CNC turned parts internationally?
Yes. CNC turned parts can be packed and shipped internationally based on project schedule, part requirements and customer shipping preferences.
Do you ship CNC milled parts internationally?
Yes. CNC milled parts can be packed and shipped internationally based on project schedule, part requirements and customer shipping preferences.
Get a Quote for CNC Turned Parts
Upload CAD files and drawings with material, quantity, tolerance, thread and finish requirements. Our team will review manufacturability, turning strategy and inspection needs before quoting.
- NDA available before file review
- DFM feedback before production
- Thread and diameter inspection available
- Material certificates upon request
- Multiple CAD and drawing files supported
Visit us
308, Building A, Chang'an Zhigu, Annex Building, No. 199 Shajiang Road, Xitou Community, Songgang Street, Bao'an District, Shenzhen, Guangdong, China.
Email Us
in**@*********nd.com
Call Us/Whatsapp
+86 17727904392
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