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A Comprehensive Guide for CNC Turning Parts Buyers

(1) Understanding CNC Turning Parts

Computer Numerical Control (CNC) has revolutionized the machining industry, offering faster and more precise production of parts. CNC turning, a popular machining method, uses a lathe to remove material from a workpiece while it rotates around an axis. To assist buyers in making informed purchasing decisions, this guide will delve into various aspects of CNC turning parts, suppliers, materials and applications.

(2) Choosing the Right CNC Turning Parts Supplier

Selecting a reliable CNC turning parts supplier is crucial for ensuring product quality and timely delivery. Keep in mind the following factors when searching for a supplier:

Reputation: Research online reviews, testimonials, and case studies to gain insight into the supplier's reliability and expertise.

Capacity: Verify that the supplier has the capacity to handle your order in the desired timeframe.

Certifications: Look for suppliers who hold relevant certifications, such as ISO 9001, for quality management systems.

Efficiency: Evaluate the supplier's turnaround time, which will impact your supply chain efficiency.

Support: Verify if the supplier offers dedicated customer support to handle any queries or issues that arise.

(3) Material Selection for CNC Turned Parts

CNC turning can process a wide range of materials to suit various applications. Some common materials used for CNC turned parts include:

Metals: Aluminum, brass, bronze, copper, stainless steel, and titanium are standard metal options, each with its own properties. For example, aluminum is lightweight and corrosion-resistant, making it ideal for automotive and aerospace parts. Stainless steel offers strength and resistance to heat, chemicals, and corrosion.

Plastics: CNC turning can also work with plastic materials such as Acetal, Delrin, Nylon, PEEK, Polycarbonate, and PVC. The material choice depends on the application's requirements, such as strength, heat resistance, and durability.

(4) Applications of CNC Turned Parts

CNC turning has various applications across industries. Here are a few key sectors that employ CNC turned parts:

Automotive: CNC turned parts can create precise, custom components for engines, suspension systems and more.

Aerospace: In this industry, precision and lightweight materials are essential. CNC turning provides accurate parts made from aluminum and titanium alloys.

Medical: CNC turning is useful for producing implants, surgical instruments, and other medical equipment requiring intricate details and high precision.

Electronics: Small components in circuit boards and connectors can be manufactured using CNC turning for precision and accuracy.

(5) Tips for CNC Turning Parts Buyers

As a buyer, you should be aware of some key points to ensure a smooth purchasing experience:

Communication: Always maintain open communication with your chosen supplier to clarify any doubts regarding materials, designs, or delivery times.

Technical drawings: Supply accurate, detailed drawings and specifications of the required parts, so the supplier clearly understands your expectations.

Request samples: Ask for samples before committing to a large order to assess the supplier's capabilities and product quality.

Price negotiations: Be prepared to negotiate prices and payment terms with your supplier. Be aware of current market rates to help you determine a fair price.

Build a relationship: Cultivate a strong working relationship with your CNC turning parts supplier to ensure future smooth transactions and quality service.

(6) Future of CNC Turning Parts

As CNC technology advances, the capabilities and innovations in the CNC turning industry will likely continue to evolve. Additive manufacturing (3D printing) may complement CNC turning for the manufacturing of complex, customized parts. Robotics and artificial intelligence (AI) may also lead to automation and efficiency improvements in the CNC turning process.

In conclusion, CNC turning parts buyers should carefully consider their supplier options, materials, and applications to make informed decisions. Maintaining strong communication, providing detailed drawings, and building relationships with suppliers are key when purchasing CNC turned parts. With advancements in technology and industry innovations, the future of CNC turning parts is promising, offering exciting opportunities for buyers and industries alike.

cnc turning parts buyers

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?
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