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Precision CNC turning parts Manufacturer

  • Vowin can provide OEM&ODM orders for different MOQ requirements, support quick quotations, sample trial production, etc. Our range of services covers 3/4/5-axis CNC turning services. Cutting tasks such as grooving/drilling/milling edge/tapping/inner/outer diameter turning of complex parts with cylindrical features can be done in one go.
  • Vowin can machine precision-turned parts from 2 to 550mm in diameter and up to 1500mm in length. Regardless of the material, such as aluminium/copper/stainless steel/titanium/plastic, your parts can be machined to the required dimensions and contracted tolerances.
  • Vowin offers a wide range of surface finishes to meet your appearance requirements, sandblasting/oxidizing/electroplating/electrophoresis/painting/brushing, and can provide RoHS reports.


  • Economical for both short and long runs
  • High dimensional tolerances are possible
  • Smooth finishes can be achieved

Design Considerations

  • Avoid designing long, thin structures
  • Consider specifying a desired surface roughness
  • Bored holes become difficult when the ratio between depth and diameter is high

Custom CNC Turning Services

Rapid-MFG is a world-class CNC manufacturing supplier from China; our goal is to provide you with quality CNC turning services. We can manufacture various turned parts, such as automotive parts, medical turned parts, aluminium turned parts, metal bolts, valve spools, hydraulic fittings, camera lens housings, etc.

Our factory has advanced lathes, including advanced automatic lathes imported from Japan. We are confident that we can provide low-cost, high-quality precision lathe parts to customers in many industries worldwide. Please send us your RFQ information; you will get a quote reply soon.

Our Outstanding CNC Turning Machining Capability

With our strong capabilities in the CNC turning industry, we can provide advice on optimizing product design and feature combinations and then customize the CNC turning products you need based on your design drawings.

CNC Turning Metals Services

Vowin has high-end turning capabilities for different metal materials. And with competitive machining speed and price advantage, the CNC-turned parts you need will be machined quickly and accurately.

CNC Turning Plastics Services

We can perform CNC turning of plastics. This includes ABS-turned parts, polycarbonate-turned parts, PMMA-turned parts, and Peek round parts with high-quality surfaces.

Turned Part Polishing Services

Vowin serves as a one-stop solution factory. Many turned parts projects require polishing processes for better surface quality, and Vowin can handle them quickly to meet our customers’ immediate needs.

CNC Turning Tolerances

As an ISO 9001 certified company, we machine CNC turning lathe parts to meet tight tolerance requirements. Based on your design, our CNC lattes can reach tolerances of up to ±0.005”. Our standard tolerances for CNC milled metals is ISO 2768-m and ISO 2768-c for plastics.

CNC turning general process information
Maximum part size​ Ø 350 x 600 mm Ø 13.8 x 23.6 in Larger diameters may be feasible at shorter lengths. Contact us to discuss design options.
Minimum part size 6.4 x 6.4 x 6.4 mm 0.25 x 0.25 x 0.25 in
Minimum feature size • Ø 1 mm • Ø 0.039 in
Standard tolerance Metals: +/-0.13 mm (0.005 in) Plastics: +/-0.20 mm (0.008 in)
Minimum wall thickness Recommended size: 0.8 mm (0.031 in) for metals and 1.5 mm (0.059 in) for plastics Feasible size: 0.5 mm (0.019 in) for metals and 1.0 mm (0.039 in) for plastics
Holes Recommended size: Diameter: standard drill bit sizes Depth: 4 x diameter Feasible size: Diameter: Ø 0.5 mm (0.019 in) Depth: 8 x diameter
Threads Recommended size: Size: M6 or larger Length: 3 x diameter Feasible size: Size: M2.5
Lead time As low as 8 days for less than 50 parts

Materials for CNC Turning Parts

Our CNC turning processes are compatible with a wide range of materials, including machine-grade metals and plastics. Depending on your applications, we can create precise rapid prototypes and low-volume production from various superior-quality materials. Check out some of the common materials for your CNC turning projects.

CNC turning materials
Plastic Aluminum Stainless Steel Other Steel Other Metal
ABS 2024 303 Mild steel Brass
Nylon 6 6061 304 Alloy steel Copper
Acetal (Delrin) 6082 316 Tool steel Titanium
Polycarbonate 7050 17-4   Contact us for additional metal machining options
PVC 7075 420    
PTFE (Teflon)        
Nylon 30%GF        

Surface Finishes for CNC Machining

With a wide selection of surface finishes, Rapid-MFG can help improve the surface qualities of your products. Surface finishes applied to your CNC turned parts aim at improving their appearance, surface hardness and roughness, chemical and corrosion resistance, etc.

  Anodizing Anodizing improves corrosion resistance, enhancing wear resistance and hardness, and protecting the metal surface. Widely used in mechanical parts, aircraft, and automobile parts, precision instruments, etc. Aluminum Clear, black, grey, red, blue, gold. Smooth, matte finish. Learn More>>

Bead Blasting

Bead blasting results in parts with a smooth surface with a matte texture. Used mainly for visual applications and can be followed by other surface treatments.

ABS, Aluminum, Brass, Stainless Steel, Steel

n/a Matte Learn More>>
  Powder Coating Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat or with ultraviolet light. Aluminum, Stainless Steel, Steel

Black, any RAL code or Pantone number

 Gloss or semi-gloss

Learn More>>

  Electroplating Electroplating can be functional, decorative or corrosion-related. Many industries use the process, including the automotive sector, in which chrome-plating of steel automobile parts is common.

Aluminum, steel, stainless steel




Smooth, glossy finish


Learn More>>


Polishing is the process of creating a smooth and shiny surface, either through physical rubbing of the part or by chemical interference. The process produces a surface with significant specular reflection, but in some materials is able to reduce diffuse reflection.

Aluminum, Brass, Stainless Steel, Steel



Learn More>>



Brushing is a surface treatment process in which abrasive belts are used to draw traces on the surface of a material, usually for aesthetic purposes.

ABS, Aluminum, Brass, Stainless Steel, Steel

n/a satin

Learn More>>

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