CNC Turning Service

CNC Turning Service

Get high-quality custom turned parts for rapid prototyping and end-use production. With lead times as fast as 1 day, we ensure quick turnaround without compromising on quality.

Request a quote today and elevate your production with our industry-leading CNC turning service.

CNC Turning Service

CNC turning, also known as computer numerical control turning, is a machining process used to produce cylindrical parts by removing material from a rotating workpiece. It is a highly automated and precise manufacturing method that utilizes computer-controlled machines to shape the workpiece according to the desired specifications.

Dadesin provides you with the capacity and capabilities your project needs, while also delivering the most competitive pricing and lead times. Our CNC turning process produces custom prototypes and end-use production parts in as fast as 1 day. We use a CNC lathe with live tooling so features like axial and radial holes, flats, grooves, and slots can be machined. Industries that benefit from CNC turning services span a wide range, including automotive, aerospace, electronics, medical, and more.

Why Choose Dadesin for CNC Turning Services

Strict Quality Management

Our inspection instruments include German Zeiss CMM, Wanhao image measuring instrument, Hitachi handheld spectrometer, Mitutoyo roughness measuring instrument, etc.

Our Certification

Dadesin offers various tolerance options in accordance with ISO9001:2015 standard and even more tight as per your request.

fast Delivery

Dadesin has 200+ sets of high precision CNC machining centers and we can take your project from engineering design to delivery faster than our competitors.

Custom Surface Finishes

Select from a variety of finishes on solid metal and plastic parts, built to precise design specifications.

CNC Turning Materials

Stainless Steel


Aluminum is the most widely used non-ferrous metal structural material in the industry. As a soft, lightweight and durable metal material, it is often used in aerospace. If you would like to know aluminum materials, please review our aluminum CNC Machining Services page.

CNC Machining Aluminum Alloys

Stainless Steel

Stainless steel has the characteristics of corrosion resistance, high temperature resistance and ultra-low temperature resistance.It has a wide range of applications and can be used to manufacture medical equipment, auto parts, industrial products, etc. DADESIN can provide a variety of stainless steels such as 201, 202, 303, 304, 316, 4130, 4140.

CNC Machining Stainless Steel Alloys


Brass is an alloy of copper and zinc. It has high strength and excellent machinability and wear resistance. The surface of brass will gradually oxidize and turn black in the air, but it will form an oxide film to protect the interior. It is often used in the manufacture of precision instruments, ship parts, auto parts, medical accessories, electrical accessories, industrial products and other precision copper parts.

CNC Machining Brass Alloys


Copper, also known as red copper, has good electrical and thermal conductivity, ductility and corrosion resistance, and good plastic deformation. It is a metal material commonly used in the production of generator sets, power switch devices, electrical appliances, shielding covers, chemical industry, etc.

CNC Machining Copper Alloys


Titanium is a structural metal with light weight, high strength, good corrosion resistance and high heat resistance. Commonly used in automotive industry, aviation fasteners, turbine blades, engine parts, sports equipment, marine, environmental protection and other applications.

CNC Machining Titanium Alloys


It is the most widely used non-ferrous metal structural material in the industry. As a soft, lightweight and durable metal material, it is often used in aerospace, automobile, machinery manufacturing, shipbuilding and industrial development. The customized aluminum products processed by DADESIN have a wide range of appearance and color options and a complete range of surface treatments, which can meet the needs of different industries.

CNC Machining Magnesium Alloys


It is a thermoplastic polymer structural material with high strength, good toughness and easy processing. It is also a low-cost engineering plastic with good processing performance, strong mechanical properties, and a wide range of applications, making it an excellent choice for production parts.

ABS for CNC Machining


Nylon(PA). Also known as polyamide
It is the most important engineering plastic, covering almost every application field, widely used in chemical machinery, anti-corrosion equipment gear and parts blanks, transmission structural parts, household appliance parts, auto parts, etc.

Nylon for CNC Machining


PMMA:(polymethyl methacrylate)Also known as acrylic
It has the characteristics of good transparency, chemical stability and weather resistance, easy dyeing, easy processing, good plasticity and beautiful appearance. It is widely used in medical, industry, automobile and other fields. However, its thin-walled areas are fragile during machining, so it is not recommended for delicate or complex geometries.

PMMA for CNC Machining


Polycarbonate, referred to as PC engineering plastics, an amorphous thermoplastic resin with excellent comprehensive properties, an engineering plastic with excellent electrical insulation, ductility, dimensional stability and chemical resistance, high strength and weather resistance.

PC for CNC Machining


PEEK (poly-ether-ether-ketones) is a high-performance specialty engineering plastic that is an excellent lightweight alternative to most soft metals. It has excellent mechanical properties, good self-lubrication, chemical resistance, and good wear resistance. Commonly used in aerospace, automobile manufacturing, electrical and electronic, medical, and other fields.

PEEK for CNC Machining


POM (polyformaldehyde) is an engineering plastic with high hardness, high rigidity and high wear resistance. It has good surface hardness and compactness, and is suitable for gears, bearings, auto parts, machine tools, instrument internals and other products that play a skeleton role.

POM for CNC Machining


It is one of the lightest varieties of all plastics at present; it has the characteristics of high heat resistance, good mechanical properties, environmental protection and non-toxicity. It is suitable for making general mechanical parts, corrosion-resistant parts and insulating parts.

PP for CNC Machining


Commonly known as "Plastic King", it has excellent properties such as high and low temperature resistance, chemical corrosion resistance, small friction coefficient, self-lubrication and non-stickiness. Widely used in aerospace, electronics, electrical, chemical, machinery and other industries.

PTFE for CNC Machining

CNC Turning Surface Finishes

Enhance part performance by selecting surface finishes that improve the roughness, hardness, chemical resistance and cosmetic features of the finished component. Dadesin has its own surface treatment factory with a range of professional equipment and skillful team. Whether in metal or plastic, from prototype to full mass production, we strictly control the process and quality.

More CNC Turning Surface Finishes
cnc machining surface finishes

CNC Turning Design Guidelines

CNC turning design guidelines are essential considerations for designing parts that will undergo the CNC turning process. Check the recommended and technically feasible values for the most common features of parts produced with precision CNC turning.

  Material IN. MM
Maximum Dimensions Diameter 19.69 500
Length 23.62 600
Tolerances +/-0.0002 +/-0.005
Minimum Dimensions Length 0.020 0.5
Wall Thickness 0.020 0.5
Diameter 0.118 3

Precision Machining Tolerance

The tolerances listed here are minimums for an ideal case and looser tolerances may be required depending on the process, material choice, or part geometry. If you have larger parts, please contact us.

Limits for nominal size Plastics (ISO 2768- m) Metals (ISO 2768- f)
0.5mm* to 3mm ±0.1mm ±0.05mm
Over 3mm to 6mm ±0.1mm ±0.05mm
Over 6mm to 30mm ±0.2mm ±0.1mm
Over 30mm to 120mm ±0.3mm ±0.15mm
Over 120mm to 400mm ±0.5mm ±0.2mm
Over 400mm to 1000mm ±0.8mm ±0.3mm
Over 1000mm to 2000mm ±1.2mm ±0.5mm
Over 2000mm to 4000mm ±2mm  

How CNC Turning Works

CNC turning operations may seem complex, but the process can be simplified. Once you convert your CAD files into a program that the CNC machine can understand, you're ready to set up the machine and start turning.

In turning, the workpiece rotates while a cutting tool removes material from the outer surface. Typically, the material being machined is cylindrical or round, although turning can work with different shapes using the right adapter.

As the workpiece spins, the cutting tool keeps making cuts until the programmed shape is achieved. CNC lathes or turning centers have a turret with various tools controlled by computer programs and codes. More advanced machines can hold multiple tools, offering greater capabilities for complex designs.

Ready to get started on your CNC turning quote?

Dadesin provides high-performing parts in more than 50 different metals and plastics via our advanced CNC turning experts. Tight tolerances available, down to ±.0002.

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CNC Machining

CNC Turning FAQs

  • What is a CNC Turning Center?

    A CNC turning center, also known as a CNC lathe or a CNC turning machine, is a type of machine tool used for the process of CNC turning. It combines the functionalities of a lathe and a computer numerical control (CNC) system to perform precise and automated machining operations on cylindrical workpieces.

  • What is the difference between rough turning and finish turning?

    Rough turning removes as much material as possible without a focus on accuracy and surface finish, getting the workpiece close to the desired shape. Finish turning “finishes” the process, producing the desired smoothness and accuracy.

  • What are the typical applications of CNC turning?

    CNC turning is a versatile machining process used in various industries and applications including automotive, electronics, aerospace, firearm manufacturing, sporting, and others.

  • What are the types of turning operations?

    CNC turning operations encompass a variety of techniques and processes used to shape and machine workpieces on a CNC lathe. Here are some common types of CNC turning operations: facing, external turning, internal turning, taper turning, thread cutting, knurling and grooving.

  • What parts can be made with CNC turning?

    CNC turning is used for creating a variety of parts, including auto parts, knobs, tubes, gears, toy parts, flywheels, crankshafts, hubs & disc cams.

  • What minimum thickness can I incorporate into my design to prevent warpage?

    Typically, we recommend a minimum wall thickness of 0.5mm for metals and 1mm for plastics. However, these values largely depend on the size of the part; therefore the larger the part size, the higher the recommended minimum wall thickness should be. Please keep in mind that this does not imply that wall thicknesses with lesser values are unachievable.

Explore Related Resources

The Benefits of CNC Turning: Why CNC Turning Is a Popular Choice for Manufacturers

The Benefits of CNC Turning: Why CNC Turning Is a Popular Choice for Manufacturers

CNC turning, short for Computer Numerical Control turning, has emerged as a widely embraced technique that meets these requirements. This article explores the numerous advantages of CNC turning and sheds light on why it has become a popular choice for manufacturers across various industries.

Advantages of Using CNC Machining in Manufacturing

Advantages of Using CNC Machining in Manufacturing

CNC (Computer Numerical Control) machining is revolutionizing the manufacturing industry due to its precision, speed, and efficiency. With advanced design software, CNC machines can produce outputs that manual machines cannot replicate.

CNC Turning vs. Manual Turning: A Comparison of the Two Methods

CNC Turning vs. Manual Turning: A Comparison of the Two Methods

turning is an essential process used to shape metal components. With advancements in technology, Computer Numerical Control (CNC) turning has gained popularity over traditional manual turning methods.


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