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What is CNC Turning

cnc turning

CNC turning is a technology that utilizes computer controlled lathes to complete machining. CNC lathes use digital signals to control the movement and feed of the lathe, which can achieve high-precision and high-efficiency machining.

CNC turning can complete various complex machining tasks, such as milling, turning, drilling, slot milling, etc., and is widely used in industries such as aviation, automotive, electronics, and machinery.

Maximum part size for CNC turning

Part size limitations

Metric units

Imperial units

Maximum part diameter

431 mm

17 in

Maximum part length

990 mm

39 in

Maximum swing over the carriage

350 mm

13.7 in

Maximum spindle through-hole

40 mm

1.5 in

Maximum speed: 1700RPM, Motor power: 640W

Available materials for CNC turning

Materials that can be used for CNC turningThe available CNC turning materials include metals and engineering plastics, which are mostly used in the medical equipment industry, as well as industries such as automobiles, machinery, electronics, and automation that require high levels of detail and complex products. These materials can be quickly formed and are suitable for mass production.


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


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 Materials

Aluminum Alloy Material:Aluminum is a highly ductile metal, making it easy to machine. The material has a good strength-to-weight ratio and is available in many types for a range of applications.

Alloys6061-T6, 7075-T6, 7050, 2024, 5052, 6063, MIC6

Finishing Options:

Alodine, Anodizing Types II, III, III + PTFE, ENP, Media Blasting, Nickel Plating, Powder Coating, Tumble Polishing.

Stainless Steel Material:Stainless steel is highly resistant to corrosion and rust, making it suitable for situations where a part may be exposed to the elements for long period of time. Stainless steel is also fairly malleable and ductile.

Alloys303, 304L, 316L, 410, 416, 440C, 17-4PH, Nitronic 60.

Finishing Options:

Black Oxide, Electropolishing, ENP, Media Blasting, Nickel Plating, Passivation, Powder Coating, Tumble Polishing, Zinc Plating, Vibratory Tumbling

Stainless Steel Material:101 and 110 copper alloys offer excellent thermal and electrical conductivity, which makes them natural choices for bus bars, wire connectors, and other electrical applications.

AlloysT2、T3、101, 110Finishing Options:

Available as-machined, media blasted, or hand-polished

Titanium Alloy Material:Titanium may be selected over other materials such as steel due to its ability to withstand high and subzero temperatures. Common use cases include aerospace fasteners, turbine blades, engine components, sports equipment and marine applications.

Grade:Grade 2、Grade 5

Finishing options:

Media Blasting, Vibratory Tumbling, Passivation, Powdercoating


Non-Metallic Materials:Plastics are also very popular option for CNC machining because of its wide choices, relatively lower price, and significantly faster machining time needed. We provide all common plastics for CNC machining services.


CNC turning surface finishes

Picture Name Applicable Materials Colors Can be applied with

Anodizing Aluminum Clesr, black, grey, red, blue, gold Media Blasting, Tumbling, Alodine
Black Oxide Steel, Stainless Steel Black Media Blasting, Tumbling, Passivation
Electroless Nickel Plating Aluminum


Media Blasting, Tumbling, Passivation

Electropolishing Steel, Stainless Steel


Media Blasting, Tumbling, Passivation

Hand Polishing Acrylic


Enhanced cosmetic appearance
Media Blasting Aluminum, Steel, Stainless Steel,  Brass, Bronze, Copper


All post processes except Electropolish and Powdercoat
Powder Coating Aluminum, Steel, Stainless Steel


Media Blasting, Tumbling
Zinc Plating Steel, Stainless Steel

Clear: light blue coating

Black: glossy black coating

Media Blasting, Tumbling, Passivation

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