CNC Turning

Custom CNC Turning Services

Our CNC Turning services offer precise and efficient machining for various applications. With advanced equipment and expertise, JiAHUI delivers exceptional results. Our CNC lathes provide high precision, stable processing quality, and the ability to handle complex shapes.

We work with materials such as aluminum, copper, stainless steel, steel, titanium, and plastics, catering to industries like automotive, electronics, aviation, agriculture, medical, machinery, and hardware. With no mold fee and high production efficiency, our CNC Turning services are cost-effective—Trust JiAHUI for reliable and accurate CNC Turning solutions that meet your requirements.

  • Micro-Precision
  • Rapid Turnaround
  • Design for Manufacturing (DFM) Support
CNC Turning -

What’s CNC Turning Process?

CNC Turning services involve the precise machining of cylindrical workpieces using computer-controlled lathes. The process begins by securing the workpiece in the lathe, which rotates it at high speeds. A cutting tool is selected based on the desired shape and material, and it is positioned and fed into the rotating workpiece to remove material and create the desired shape. The CNC software controls the tool’s movements, ensuring accuracy and repeatability.

Advanced features such as multiple axes and live tooling enable the performance of complex machining operations like threading, grooving, and contouring. Skilled machinists closely monitor the process, making necessary adjustments to maintain quality and dimensional accuracy. CNC Turning services are highly versatile, accommodating various materials and producing components for multiple industries, including automotive, aerospace, medical, and more. CNC Turning services are vital in manufacturing processes, offering precise and efficient machining.

Our Qualification For CNC Turning Service

Our CNC Turning services offer efficient and reliable solutions for your machining needs. With fast lead times and competitive pricing, JiAHUI can provide high-quality CNC-turned parts, from rapid prototyping to production runs. Our qualifications are based on several key factors.

We have tight tolerances of up to 0.02 mm, ensuring precision and accuracy in the manufacturing process. This level of precision allows us to deliver parts with the features you require, including axial and radial holes, slots, and grooves. Our team of expert technicians utilizes advanced CNC lathes with live tooling capabilities. This technology enables us to create complex geometries and produce parts with high accuracy. Automating our machines also allows for efficient production and faster turnaround times.

We implement a comprehensive quality management system and conduct complete inspections to ensure you receive precision machined parts free from defects. Take advantage of our round-the-clock engineering support, where our experienced engineers can lend their expertise in part design, material selection, and surface finishing options to enhance your project.

Manufacturing Process

CNC turning is an exact manufacturing process that involves rotating a workpiece while a cutting tool removes material to create cylindrical shapes. This automated method ensures accuracy and consistency, making it ideal for producing intricate components with intricate details and tight tolerances cost-effectively and efficiently.

CNC Turning Manufacturing Process -
Material Weight Size Limit Surface Finish Tolerance
Aluminum 10g-500KG 1000mmx500mmx500mm Ra1.6µm~0.8µm(0.2µm achievable if specified) ±0.1mm(±0.05mm achievable if specified)
Copper 10g-500KG 1000mmx500mmx500mm Ra1.6µm~0.8µm(0.2µm achievable if specified) ±0.1mm(±0.05mm achievable if specified)
Stainless Steel 10g-500KG 1000mmx500mmx500mm Ra1.6µm~0.8µm(0.4µm achievable if specified) ±0.1mm(±0.05mm achievable if specified)
Steel 10g-500KG 1000mmx500mmx500mm Ra1.6µm~0.8µm(0.4µm achievable if specified) ±0.1mm(±0.05mm achievable if specified)
Titanium 10g-500KG 1000mmx500mmx500mm Ra1.6µm~0.8µm(0.2µm achievable if specified) ±0.1mm(±0.05mm achievable if specified)
Magnesium 10g-500KG 1000mmx500mmx500mm Ra1.6µm~0.8µm(0.2µm achievable if specified) ±0.1mm(±0.05mm achievable if specified)
Zinc 10g-500KG 1000mmx500mmx500mm Ra1.6µm~0.8µm(0.2µm achievable if specified) ±0.1mm(±0.05mm achievable if specified)
Plastic 10g-500KG 1500mmx1000mmx200mm Ra3.2µm~1.6µm(0.8µm achievable if specified) ±0.1mm~0.2mm

Our CNC Turning Production Capabilities

CNC turning production capabilities at JIAHUI are at the forefront of precision manufacturing. We operate various advanced CNC turning machines with multi-axis capabilities, enabling us to craft intricate components with exceptional precision. Our skilled team, combined with cutting-edge technology, ensures swift turnaround times and the capacity to meet diverse production requirements.

Materials for CNC Turning Parts

We work with a diverse array of materials for CNC turning parts, including metals like aluminum, brass, stainless steel, and titanium. Our material expertise ensures versatility and quality in crafting components for a wide range of applications.

  • Aluminum
  • Copper
  • Stainless Steel
  • Carbon Steel
  • Titanium
  • ABS
  • POM
  • PC
  • PA
  • PP


The distinctive characteristics of aluminum make it one of the best materials for die-casting. The major aluminum alloys are A360, A380, A390, A413, ADC12, and ADC1. Among all, the A380 is the most worthwhile aluminum alloy.


  • Excellent corrosion resistance
  • Lightweight
  • High strength and hardness
  • Outstanding thermal conductivity
  • High electrical conductivity
  • Remarkable EMI and RFI shielding properties


Copper is a reddish-orange metal with a face-centered cubic structure that is highly valued for its aesthetics. It exhibits remarkable properties, yet, it can be alloyed with different elements, such as aluminum, tin, zinc, nickel, etc., to improve its characteristics further. The following are some fundamental properties of copper that make it ideal for producing die-casting parts.


  • Very soft
  • An excellent conductor of heat and electricity
  • Good corrosion resistance
  • High ductility
  • Fine malleability

Stainless Steel

Stainless Steel

Stainless steel is metal-enriched with chromium elements (11%) and a small amount of carbon. Chromium offers corrosion resistance to stainless steel. Due to this, the die-cast parts are less likely to be affected by rust or corrosion. It can be easily molded into several forms. Thus, manufacturers prefer it for the die-casting process.


  • Extremely durable
  • High tensile strength
  • Corrosion resistant
  • Easy fabrication and formability
  • Low maintenance cost

Carbon Steel

Carbon Steel

Carbon steel is famous for its low cost and versatile nature. Typically, carbon steel is divided into three categories, i.e., low-carbon, medium-carbon, and high-carbon steel. The properties of these types differ according to the carbon content present in the material. Low-carbon steel is known for its good machinability and weldability, whereas high-carbon steel is used in high-strength applications.


  • Very hard
  • Ductile and malleable
  • Relatively low tensile strength
  • Good machinability
  • Low cost



Titanium is a silver-grey transition metal often used for manufacturing high-strength parts. It is relatively soft when present in its pure form. However, adding certain elements like iron, aluminum, and vanadium makes titanium harder. The properties of titanium make it a perfect choice for manufacturers to use for die-casting parts.


  • Extremely high tensile strength
  • Lightweight
  • High corrosion resistance
  • Able to withstand extreme temperatures
  • High melting point
  • Excellent oxidation capabilities



ABS is a thermoplastic material known for its strength, impact resistance, and toughness. It is widely used in various industries for its excellent mechanical properties, ease of processing, and versatility. ABS is commonly found in applications such as automotive parts, toys, electronics, and household appliances.


  • High-impact resistance and toughness
  • Good dimensional stability
  • Excellent chemical resistance
  • Easy to process and mold
  • Versatile and used in various applications, including automotive, electronics, and consumer goods.



POM, also known as acetal or Delrin, is a high-performance engineering thermoplastic known for its excellent strength, stiffness, and dimensional stability. It has low friction, good wear resistance, and is resistant to moisture, chemicals, and solvents. POM is commonly used in mechanical and precision parts, automotive components, and electrical applications.


  • High strength and stiffness
  • Low friction and wear resistance
  • Excellent dimensional stability
  • Good chemical resistance
  • Low water absorption

PC -


PC is a durable and transparent thermoplastic material known for its high impact resistance and optical clarity. It has good electrical insulating properties, excellent dimensional stability, and can bear a wide range of temperature. PC is commonly used in safety glasses, automotive components, and electronic enclosures.


  • High impact resistance
  • Optical clarity
  • Good dimensional stability
  • Electrical insulation
  • Wide temperature range

PA -


PA, commonly known as nylon, is a versatile thermoplastic material with excellent mechanical properties. It offers high strength, toughness, abrasion resistance, good chemical resistance, and dimensional stability. PA is widely used in various industries for applications such as electrical components, consumer goods, and automotive parts.


  • High tensile strength and toughness
  • Good chemical resistance
  • Low friction and wear resistance
  • Excellent dimensional stability
  • Good thermal stability

PP -


PP is a thermoplastic material known for its high chemical resistance, low density, and good thermal stability. It is lightweight, rigid, and has excellent moisture resistance. PP is commonly used in automotive parts, packaging, laboratory equipment, and various consumer products due to its versatility and cost-effectiveness.


  • High chemical resistance
  • Low density
  • Excellent moisture resistance
  • Good thermal stability
  • Versatile and cost-effective

Surface Treatment For CNC Turning Parts

At JIAHUI, our CNC turning parts benefit from various surface treatments to enhance functionality and durability. We offer precision processes like plating, anodizing, and polishing, ensuring corrosion resistance and superior finish.



Anodizing_CNC Turning -

Anodizing improves corrosion resistance, enhancing wear and hardness and protecting the metal surface. This surface finish is widely used in mechanical parts, aircraft, automobile parts, and precision instruments.

Aluminum, Magnesium, Titanium, Zinc

Clear, Black, Grey, Red, Blue, Gold, White, Silver, purple

Smooth, Matte finish

Bead Blasting

Bead Blasting_CNC Turning -

Bead blasting in surface treatment is a process where fine abrasive particles, such as glass beads or ceramic media, are propelled at high speed onto a surface using compressed air. This abrasive action helps to remove rust, paint, or other contaminants, leaving behind a clean and textured surface finish.

ABS, Aluminum, Brass, Stainless Steel, Steel


Smooth, Matte finish

Powder Coating

Powder Coating_CNC Turning -

Powder coating in surface treatment is a dry finishing process where a fine powder is electrostatically applied to a surface. The coated object is then cured under heat, melting the powder particles and forming a durable, smooth, uniform coating.

Aluminum, Magnesium, Titanium, Zinc, Copper, Stainless Steel, Steel

Black, Grey, White, Yellow, Red, Blue, Green, Gold, Vertical stripe

Smooth, Matte finish


Galvanizing_CNC Turning -

Galvanizing is a surface treatment that applies a protective zinc coating to the surface of iron or steel. This process helps prevent corrosion by creating a barrier between the metal and outside environment.

Low-Carbon Steel, Low- Alloy Steel


Smooth, Matte or Gloss finish


Electroplating_CNC Turning -

Electroplating in surface treatment is when a metal coating is applied to a conductive surface through an electrochemical reaction. It involves immersing the object to be plated in a solution containing metal ions and using an electric current to deposit a metal layer onto the surface.

Aluminum, Magnesium, Titanium,Zinc, Copper, Stainless Steel, Steel

Clear, White, Black, Grey, Red, Yellow, Blue, Green, Gold, Silver, Bronze

Smooth, Semi-matte, Matte finish


Polishing_CNC Turning -

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

Aluminum, Magnesium, Titanium, Zinc, Copper, Stainless Steel, Steel


Smooth, Mirror finish


Blackening_CNC Turning -

Blackening is a standard method of chemical surface treatment that creates a layer of oxide film on the surface of metal to isolate the air and prevent the rust.

Stainless Steel, Steel


Smooth, Matte finish.


Brushing_CNC Turning -

Brushing in surface treatment refers to manually or mechanically applying abrasive brushes to a surface, usually metal, to remove imperfections, create a uniform texture, or enhance its appearance.

Aluminum, Magnesium, Titanium, Zinc, Copper, Stainless Steel, Steel


Smooth, Matte finish


Electrophoresis_CNC Turning -

Electrophoresis is a process in which charged resin particles (ions) in a solution are moved by an electric field and deposited on a metal surface to form a protective coating.

Aluminum, Magnesium, Titanium, Zinc, Copper, Stainless Steel, Steel

Black, Grey, White, Yellow, Red, Blue, Green, Gold, Silver, Purple

Smooth, Matte finish


Painting_CNC Turning -

Painting is especially suitable for the surface of the primary material of metal. It will strengthen the material's moistureproof& rust prevention functions and enhance its compression resistance and internal structural stability.

Aluminum, Magnesium, Titanium, Zinc, Copper, Stainless Steel, Steel

Black, Grey, White, Yellow, Red, Blue, Green, Gold, Silver, Purple

Smooth, Matte finish

Excellent CNC Turning Services

Elevate your CNC turning parts to extraordinary levels of precision and quality. Contact JIAHUI today to unlock the excellence in your components.

Typical CNC Turning Products

CNC Turning -

FAQs Related To CNC Turning

A: The maximum size of CNC turning, or the maximum dimensions that can be accommodated in a CNC turning operation, depends on several factors, including the capabilities of the specific CNC lathe machine and the available tooling. However, it is essential to note that CNC turning is typically used for machining cylindrical or rotational parts, so the maximum size is often determined by the swing diameter and the maximum length that can be held and rotated by the lathe.
The swing diameter refers to the maximum diameter of the workpiece that the lathe can accommodate without any obstructions. This is the distance from the centerline of the lathe spindle to the closest part of the lathe bed or any other obstructions. The swing diameter can vary significantly depending on the size and type of lathe machine, ranging from a few inches to several feet.
In terms of length, CNC lathes can typically handle workpieces of various lengths, depending on the bed length of the particular machine. Bed length is the distance between the headstock and tailstock of a lathe and determines the maximum length of the workpiece that could be held and rotated. It is essential to consult the manufacturer's specifications or the capabilities of the specific CNC lathe machine to determine the maximum size and dimensions that can be accommodated. CNC turning machines come in a wide range of sizes and configurations so the maximum size will vary from machine to machine.

A: The tolerance of CNC-turned parts refers to the allowable deviation from the desired dimensions or specifications of the part. It determines the level of accuracy and precision that can be achieved in the CNC turning process. Specific tolerance requirements for CNC turned parts vary widely based on factors such as application, industry standards, and the special needs of the part.
Tolerances in CNC turning are typically specified using a combination of dimensional values and a tolerance class or symbol. The most common way to express tolerances is through the ISO system, which uses letters and numbers to represent the tolerance class. For example, ISO 2768-mK is a commonly used tolerance class for general machining.
The tolerance values can vary depending on the specific dimensions of the part, such as diameter, length, concentricity, surface finish, and other geometric features. In general, CNC turning can achieve tolerances ranging from a few thousandths of an inch (0.001") to a few ten thousandths of an inch (0.0001").
It is important to note that achieving tighter tolerances often requires more precise machinery, tooling, and setup, which may result in increased costs and longer machining times. The specific tolerance requirements should be determined based on the functional requirements of the part and the feasibility of achieving those tolerances within the capabilities of the CNC turning process.
To ensure the desired tolerances are met, it is essential to communicate the tolerance requirements clearly to the CNC machine operator or the manufacturer. They can provide guidance on the achievable tolerances based on the specific machine, tooling, and material being used. Additionally, inspection and quality control processes can be employed to verify the achieved tolerances of the CNC-turned parts.

A: The processing capacity of CNC turning refers to the capabilities and limitations of a CNC lathe machine in terms of the size, complexity, and material types that it can handle. The specific processing capacity of a CNC lathe machine can vary depending on its design, specifications, and features. Here are some factors to consider:

  1. Size: The size of the workpiece that a CNC lathe can accommodate is determined by its swing diameter and maximum length. The swing diameter is the maximum diameter of the workpiece that can fit without any obstructions, and the maximum length is determined by the distance between the lathe's headstock and tailstock.
  2. Complexity: CNC turning machines can handle a wide range of part complexities, from simple cylindrical shapes to more intricate designs. The machine's capabilities may include features such as live tooling, which allows additional machining operations (like milling or drilling) to be performed during turning.
  3. Type of material: CNC turning can be performed on various of materials, including metals (such as aluminum, steel, brass, and titanium), plastics, and some composite materials. The specific material that can be turned depends on the capabilities of the lathe machine, such as its spindle speed, power, and tooling options.
  4. Tooling: The tooling options available for a CNC lathe machine can impact its processing capacity. Different types of cutting tools, inserts, and holders may be used to optimize the machining process for specific materials and part geometries.
  5. Automation: CNC turning machines can often be equipped with automation features, such as automatic tool changers and bar feeders, which can enhance productivity and processing capacity by reducing manual intervention and increasing the machine's uptime.

It is essential to consult the specifications and capabilities of a specific CNC lathe machine to understand its processing capacity. The machine manufacturer or supplier can provide information on the maximum size, complexity, and material types the machine can handle effectively.

A: The fastest delivery time for CNC turning can vary depending on several factors, including the part's complexity, the quantity required, the availability of materials, and the workload of the machine shop. It is important to note that rushing the production process too much can compromise the quality and accuracy of the parts.

CNC turning is generally known for its efficiency and relatively fast turnaround times compared to traditional machining methods. Simple parts with standard dimensions and tolerances can often be produced within a few days or even less, especially if the machine shop has available capacity and the necessary materials in stock.

The delivery time may be longer for more complex parts or larger quantities. Machining can take hours or even days, depending on the size and complexity of the part, the number of operations required, and available machine capacity. The delivery time may also be influenced by factors such as material procurement, tooling setup, and additional finishing or post-processing requirements.

It is best to consult with the machine shop or manufacturer to determine the fastest delivery time for CNC turning. They can offer more accurate estimates based on current workload, capacity, and project specific requirements. Your lead time expectations must be clearly communicated and allow sufficient time for proper processing, quality control and any necessary adjustments or corrections that may arise along the way.

A: Feed rate and cutting speed are two essential parameters in CNC machining that affect the efficiency and quality of the machining process. Here are the differences between the two:


  • Feed Rate: The feed rate is the velocity at which the cutting tool moves through the material during machining, which is usually measured in units of distance per unit of time (for example, inches per minute or millimeters per second).
  • Cutting speed: Cutting speed, also known as spindle speed or surface speed, refers to the rate at which the workpiece or cutting tool rotates during machining, which is Usually measured in units of distance per unit of time (for example, surface feet per minute or meters per minute).


  • Feedrate: Feedrate and cutting speed are related by the number of cutting tool teeth or cutting edges. The feed rate is calculated by multiplying the cutting speed by the number of cutting edges used in the process.
  • Cutting speed: Cutting speed is determined by the material being machined, the type of cutting tool and the desired surface finish. It is usually specified by the material manufacturer or determined through machining experience and tool guidelines.

3.Influence on Machining:

  • Feed Rate: The feed rate directly affects the amount of material removed during the machining process—a higher feed rate results in a faster material removal rate, leading to increased productivity. However, selecting an appropriate feed rate is essential to avoid excessive tool wear, poor surface finish, and potential damage to the cutting tool or workpiece.
  • Cutting Speed: The cutting speed affects the cutting tool's ability to remove material efficiently and influences factors such as tool life, heat generation, and surface finish. Different materials and cutting tools have optimal cutting speed ranges to ensure efficient machining and prevent issues like tool wear, workpiece deformation, or poor surface quality.


  • Feed rate: The feed rate is usually determined by the desired chip load, which is the thickness of material removed per revolution per cutting edge. The chip load is calculated based on factors such as the material to be machined, the type of cutting tool, and the required machining conditions.
  • Cutting Speed: The cutting speed is determined based on factors such as the machining material, type of cutting tool, and desired surface finish. Machining guidelines, tooling recommendations, and experience are crucial in setting the appropriate cutting speed.

It is important to note that both feed rate and cutting speed should be optimized based on the specific machining requirements, material properties, tooling capabilities, and desired machining outcomes. Proper selection and adjustment of these parameters is critical to achieve optimum machining performance, tool life and surface finish.

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