CNC Turning

Xintao, an experienced supplier of precision CNC turning services in China. We have been dedicated to provide high precision CNC lathe/turned parts including but not limited to washers, bolts, shafts, rivets, gaskets, sleeves, male joints, stainless steel fittings, tubing, lamps, wheel studs, etc.

CNC Turning Capabilities

Xintao specializes in custom precision cylindrical components, from shafts and bushings to threaded fittings.

Capacity: 30+ CNC turning machines; parts up to Ø508 mm × 1066.8 mm

Precision: Tolerances down to ±0.003 mm after drawing review

Materials: 60+ metal and plastic material options

Lead Time: Fast turnaround from 5 days for selected simple parts

Confidentiality: NDA support for confidential drawings and projects

Custom CNC Turned Parts We Manufacture

Xintao produces custom CNC turned and turned-milled components based on customer drawings, from simple cylindrical parts to complex precision components.

Bearing Housings

Precision Shafts

Flanges & Circular Parts

Anodized Aluminum Parts

CNC Turning Size Range & Tolerance Guidelines

Every project undergoes a thorough engineering review of material, structure, and tolerance requirements before production begins. Below is an overview of our CNC turning capacity and precision guidelines.

Maximum CNC Turning Size Range

Part size limitations	Metric units	Imperial units
Maximum part diameter	508 mm	20 inch
Maximum part length	1066.8 mm	42 inch
Maximum swing over the carriage	355.6 mm	14 inch
Maximum spindle through-hole	50.8 mm	2 inch

Maximum speed: 2000RPM

General Tolerance Guidelines

Feature Type	General Tolerance	Tight Tolerance After Review
Linear Dimensions	±0.05 mm	Down to ±0.01 mm
Hole Diameters	±0.03 mm	Down to ±0.01 mm
Shaft Diameters	±0.02 mm	Down to ±0.005 mm
Precision Features	Based on drawing review	Down to ±0.003 mm

Surface Finishes for CNC Turned Parts

We provide 30+ surface finishing options for CNC turned parts. Common finishes include anodizing, passivation, electroplating, black oxide, polishing and sandblasting.


As machined	Sand blasting	Polishing / Mirror Polishing	Anodizing Type II & III
Standard functional parts with visible machining marks.	Uniform matte texture before anodizing or final finishing.	Smooth or high-gloss surface for stainless steel and aluminum parts.	Improves corrosion resistance and appearance for aluminum parts.

Passivation	Chromate Conversion Coating / SurTec 650	Plating	Powder Coating
Improved corrosion resistance for stainless steel components.	Provides corrosion resistance, electrical conductivity and paint adhesion for aluminum parts.	Nickel, zinc and other plating options for corrosion protection and appearance.	Color, surface protection and durable industrial appearance.

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