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Top CNC Turning Parts Suppliers: A Comprehensive Guide to Choosing the Best

When it comes to manufacturing precision parts, CNC turning is one of the most widely used processes in the industry. With the ability to produce complex parts with high accuracy and repeatability, it's no wonder that many industries rely on this process to make their essential components. With a vast number of suppliers out there, it can be challenging to determine which one suits your requirements best. This guide will explore some of the best CNC turning parts suppliers and provide the essential information you need to make an informed decision.

The Importance of CNC Turning in Manufacturing

Before delving into the best suppliers, it's essential to understand the importance of CNC turning in manufacturing. The process uses computer-controlled lathes to remove material from a spinning workpiece to create complex shapes and designs. This allows for incredible accuracy and repeatability, making it ideal for creating precision parts for various industries such as aerospace, automotive, medical, and many others.

Factors to Consider When Choosing a CNC Turning Parts Supplier

There are several factors to consider when selecting a supplier for your CNC turning needs. Some of these key factors are:

1. Quality:The supplier should be able to consistently produce high-quality parts that meet your specifications and requirements.

2. Capabilities:It's essential to choose a supplier with a wide range of capabilities, including experience with different materials, tolerances, and part complexities.

3. Customer Service:A supplier should be responsive, attentive to your needs, and able to communicate effectively.

4. Lead Times:Make sure the supplier can meet your deadlines while maintaining quality.

5. Pricing:While price should not be the sole determining factor, it's still essential to consider a supplier that offers competitive pricing without sacrificing quality.

Best CNC Turning Parts Suppliers

After considering the factors mentioned above, the following suppliers have been identified as some of the best CNC turning parts suppliers in the market.

1. Star Rapid

Star Rapid is a well-established company known for its rapid prototyping and low-volume manufacturing services. They offer CNC turning services for a variety of materials such as aluminum, steel, brass, copper, and plastics. With their advanced equipment, experienced engineers, and rigorous quality control measures, Star Rapid ensures accuracy, precision, and customer satisfaction.

2. Proto Labs

Proto Labs is another highly regarded CNC turning parts supplier. They offer a wide range of services, including CNC machining, injection molding, and 3D printing. Their impressive turnaround times, innovative manufacturing processes, and commitment to quality have made them a trusted supplier for many industries.

3. Plethora

Plethora is a CNC machining services provider that focuses on delivering precision parts with the help of state-of-the-art technology. They offer a range of CNC services, including turning, milling, and routing. With their custom-built software, Plethora provides instant quotes, design feedback, and lead time estimates.

4. Fictiv

Fictiv is a manufacturing platform that connects customers with vetted and highly qualified CNC machining suppliers. Their extensive network of machining partners enables them to offer a wide range of materials, finishes, and tolerances. With their user-friendly platform, Fictiv simplifies CNC turning parts procurement, ensuring quality and timely delivery.

5. Xometry

Xometry is a leading on-demand manufacturing platform that offers CNC machining services along with 3D printing, sheet metal fabrication, and injection molding. They provide detailed quotes quickly and have a vast range of materials and finishing options. With their experienced machinists and a focus on high-quality parts, Xometry has become a reliable partner for many businesses.

Making the Right Choice

With so many suppliers to choose from, it's important to weigh the factors listed above and select a company that aligns with your needs and expectations. This comprehensive guide should serve as a starting point for your research, and by considering the suppliers mentioned and doing further due diligence, you'll be well on your way to finding the best CNC turning parts supplier for your specific requirements.

best cnc turning parts supplier

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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