• ascnc@asianstarcnc.com

Mastering CNC Machining Services: A Comprehensive Guide to Turning Parts


Computer Numerical Control (CNC) machining services have revolutionized the manufacturing industry, allowing for high-precision, cost-effective production of various components. Among the numerous CNC machining techniques available, turning stands out as a popular and versatile choice. In this blog post, we'll explore the ins and outs of CNC turning services, discussing the key factors that contribute to achieving the best results in producing high-quality turned parts.

Understanding CNC Turning

CNC turning is a process that employs a lathemachine to remove material from a workpiece, creating a desired shape and surface finish. The lathe holds the workpiece in a chuck and rotates it at varying speeds, while a stationary cutting tool removes excess material. CNC turning can produce a wide range of components, from simple cylindrical shapes to complex geometries. As a result, it has become a preferred manufacturing method for industries such as aerospace, automotive, and medical equipment production.

Selecting the Right Material

To ensure the best CNC machining results, it's crucial to choose the appropriate material for your turned parts. Selecting the right material depends on factors such as the part's desired function, the required strength, and corrosion resistance. Common materials for CNC turning include:

Aluminum: Lightweight, strong, and corrosion-resistant, aluminum is ideal for applications that require weight savings and high strength-to-weight ratios.

Stainless steel: With excellent corrosion resistance and good mechanical properties, stainless steel is ideal for applications in harsh environments or that require high precision.

Brass: Offering good machinability and corrosion resistance, brass is commonly used in the creation of decorative components or those that require low friction.

Plastics: Featuring good thermal and electrical insulating properties, plastics like nylon, polyethylene, and acrylic are suitable for turning operations, particularly for non-critical components or those that don't require high strength.

Optimizing Cutting Tools

Choosing the right cutting tool is a critical aspect of achieving optimal CNC turning results. Selecting the proper geometry, insert, and coating for the cutting tool will help maximize machining efficiency and surface finish. Factors influencing cutting tool selection include:

Material type: The hardness and toughness of the material being machined play a significant role in determining the appropriate cutting tools.

Cutting speed: Higher cutting speeds tend to require tools with specific coatings and geometries to reduce heat generation and mitigate tool wear.

Surface finish: The desired surface finish can impact the choice of cutting tool, as some geometries and coatings are better suited for achieving smooth finishes.

Adapting to Tolerances and Surface Roughness

Precision is a paramount consideration in CNC turning, and adhering to specified tolerances is crucial for creating accurate, high-quality parts. Achieving desired tolerances and surface roughness is a function of factors like the cutting tool, workpiece material, and cutting parameters:

Tool selection: Using a sharp, properly dressed cutting tool will help reduce the likelihood of chatter or excessive tool deflection, promoting tighter tolerances and improved surface finish.

Cutting parameters: Maintaining appropriate cutting speeds, feed rates, and depths of cut can help minimize the risk of tool deflection or workpiece distortion, ensuring dimensional accuracy.

Fixturing: Using properly designed and maintained fixturing can help reduce workpiece movement or vibration, further contributing to part accuracy and excellent surface finish.


CNC turning services are an integral part of modern manufacturing, producing high-quality turned parts for a variety of industries. By understanding the intricacies of the CNC turning process and taking steps to select the appropriate materials, cutting tools, and machining strategies, you can ensure the best results for your turned components. No matter the complexity of your project, experienced CNC machining service providers can offer valuable guidance and expertise to create parts that meet your specific requirements and exceed your expectations.

best cnc machining service turning parts

What is CNC Turning

CNC turning is a process that involves using computer numerical control (CNC) machines to shape and finish various materials, such as metals and plastics, into desired shapes and sizes.
This process is typically used in the manufacturing industry to produce precision parts and components for a wide range of applications, including automotive, automation, aerospace, medical, machinery, and industrial.

CNC Turning service

Asianstar Professional CNC Turning Service

Asianstar CNC turning Service offers precision machining for a wide range of materials, including metals, plastics, and composites. With high level facilities and skillful operators, we can produce high-quality parts with tight tolerances and intricate designs.

Our CNC turning capabilities allow us to produce parts with diameters ranging from 0.5 mm to 480mm and lengths up to 450mm. We offer both single and multi-axis turning, as well as live tooling options for added complexity and accuracy.

We use proven processes and quality control measures to ensure that every part we produce meets our clients' specifications and expectations.

Whether you need a single prototype or high-volume production runs, our CNC turning service can provide the precision and reliability you need to get your project completed on time and on budget.

CNC Turning service

Components Sizes of Asianstar CNC Turning Service

Unit (mm) Min Max
Out Diameter 0.5 480
Inner Diameter (Hole) 0.3 465
Length 1.0 450
Groove Diameter 0.4 above
Thread M1.2 above

Components Tolerance of Asianstar CNC Turning Service

Unit (mm) Tolerance according to sizes
Height Tolerance Diameter Size 0.5 to 3 3 to 6 6 to 30 30 to 120 120 to300 300 to480
Tolerance ±0.003 ±0.010 ±0.020 ±0.030 ±0.035 ±0.040
Length Tolerance Length Size 0.5 to 3 3 to 6 6 to 10 10 to 20 20 to 30 30 above
Tolerance ±0.010 ±0.020 ±0.250 ±0.250 ±0.030 ±0.035

Components shape and position tolerance of Asianstar CNC Turning Service

Tolerance Class followed Tolerance (mm)
Straightness and Flatness Verticality Symmetry
10 10 to 30 30 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000
H ±0.015 ±0.02 ±0.03 ±0.05 ±0.10 ±0.15 ±0.02 ±0.025 ±0.03 ±0.035 ±0.02 ±0.03 ±0.04 ±0.05

Capability of Asianstar CNC Turning Service

Type of Turning Machine Diameter Size (mm) Length Size (mm) Productivity (PCS/Month)
Auto Turning Machine Simple Turning Machine Multi Turning Machine Pin Turning Machine Min 0.5 Max 480 Min 1.0 Max 450 200’000/Item


Multiple Machining Processes

Multiple Machining Processes

Asianstar has various machining processes to support different types of components from client, we can choose the best suitable manufacturing solution to carry result in perfect performance and cheap cost

Flexible Custom Service

Flexible Custom Service

With skillful machining technologies, Asianstar is flexible to support clients on different materials and different structures of the components, we also flexible on the components quantities and even assembly

Create Designing for Clients

Create Designing for Clients

Not only producing according to clients drawings, Asianstar also propose the better designing to clients, supporting clients to buildup improved designing or even new generation components

Standard Procedures

Standard Procedures

Asianstar production, as experienced by many years, is strictly following internal Standard Operating Procedures, to make sure the production schedule is smooth and plans are well carried out well without accidents

Standard Procedures

Standard Procedures

Asianstar strictly controlling product quality by system. We start QC controlling from production plan once setting up, to production process by monitoring QC checking and until the final Inspection before packing

Fast Lead-Time Delivery

Fast Lead-Time Delivery

Asianstar strictly control the production processes, teams keep the plan moving ahead according to the procedures, we have internal time management schedule which mostly bring earlier lead-time of delivery

Asianstar: Professional CNC Machining Supplier

From year of 2005, Asianstar Company establish the CNC Machining Factory in Guangdong Province, China.
We mostly provide CNC Turning, Milling, Drilling, Grinding, and Multi Machining processes service on various materials.
With the Belief of becoming a key supplier in the supply-chain of Precision Components, we strictly control our product quality, keep high precision on our components production, buildup the whole-process QC System and submit the satisfaction for every order.
By long term development, we have buildup partnership with world-wide clients, supporting our partners in Designing, Optimizing, Producing and Testing on each type of components.


CNC Turning Service

CNC Turning Service

Our CNC Turning Service provides different sizes of roll shape work-pieces, the diameter range is from 0.5mm to 480mm, reaching tolerance +/-0.003mm.

CNC Milling Service

CNC Milling Service

Our milling machines and CNC centers are able to produce complicated structure part, five-axis devices produce multi-sides at one-time jag which bring high precision result

Sheet Metal Fabrication

Sheet Metal Fabrication

Our Sheet Metal Fabrication provides slicing, punching, bending, welding, painting and assembling for set products, unique tooling for each project to raise production efficiency

Aluminum Extrusion

Aluminum Extrusion

Our Aluminum Extrusion brings clients various shapes of aluminum parts, high efficiency for mass quantity, our precision extrusion mold control tolerance within 0.01mm

Forging Service

Forging Service

For some steel serious products, we apply Forging Service to make out their outer shape and them use CNC devices to start drilling, forming, rolling, cutting, etc.

Finishing Service

Finishing Service

Our Surface Finishing Service uses chemical or electro post-treatments after machining tasks are finished, normally includes Oxide, Anodizing, Passivation, E-Plating, Painting,etc.


  • Q1.Do you support ODM/OEM?

    Yes, we support ODM/OEM, we provide custom-made service for clients or even support clients on designing or improving

  • Q2.Do You Have Stock
  • Q3.What Is Your Production Capacity?
  • Q4.Where Is Your Factory?
  • Q5.Can You Provide Samples?
  • Q6.How About Your After-sales Service?
Get The Best Quotes Now