Ultra Precision CNC Machined Parts Manufacturer in China

DEK is China leading CNC machined parts manufacturer which specialized in precision and rapid production. At DEK, we a variety of advanced equipment, and have an experienced engineers team, has provided reliable CNC machined parts to Foxconn, Gree, Flextronics, and other international companies.

CNC Machined Parts

DEK: The Best CNC Machined Parts Manufacturer in China

DEK is China’s leading CNC machining parts manufacturer. Since its establishment in 2002, we have continuously invested in new machines, continuously trained employees, and continuously improved production processes. We have never stood still, this is why we have always been in a leading position in China’s CNC machining industry.

From the initial production of mold components to the current one-stop CNC machined parts suppling, we have always insisted on precision manufacturing, and help customers get high-quality parts with the fastest and best service.

We have a complete range of equipment including the 3-axis CNC machine, 4-axis CNC machine, 5-axis CNC machine, CNC lathe, Centerless grinder, EDM machine, etc, and numerous material supply chains, which are sufficient to deal with any CNC machined parts, whether plastic or metal, complex or simple. All you need to do is send us the drawings, and then you can rest assured to wait for the receipt.

CNC Machined Parts

Diversified Machining Processes

We have a variety of equipment and corresponding technologies, these ensure you will get high quality CNC machined components in a short time, no matter the component is simple or complex, is common tolerance or ultra precision, is small volume or mass production.

CNC milling

CNC Milling

CNC turning

CNC Turning

swiss machining

Swiss Machining

Surface grinding

Surface Grinding

centerless grinding

Centerless Grinding

Wire EDM

Wire EDM

Sink EDM

Sink EDM

deep hole drilling

Deep Hole Drilling

Why More Than 2300+ Companies Choose DEK?

Quick Delivery

Through advanced machinery and production technology, your CNC machined parts will be produced in a very short time.

High Quality

The QC department is the core department. Every part will be strictly tested, and only those that 100% meet requirements will be allowed to be shipped.


By improving production efficiency, reducing defect rates, and purchasing large quantities of raw materials, we can reduce the cost of parts by 30%-58%. Help you save more money.

Multi Materials

No matter what kind of metal, stainless steel, iron, aluminum, titanium alloy, etc., no matter what kind of plastic, PE, PP, PC, ABS, etc., you can choose freely for your distinctive parts.

Ultra Precision

Ultra-precision is our exclusive weapon, 99% of your suppliers cannot achieve the tolerance accuracy of ±0.001mm (+/-.00005") like ours.


Do you feel helpless when you only need 10 pieces, but your supplier says that the MOQ needs 1,000? Here, this kind of thing will not happen, because we have not MOQ request, even if there is only one.

Surface Finishing

We are good at various surface treatment methods, such as anodizing, bluing, PVD Coating, electroplating, Brushed, Powder Coating, etc., which can add color to your parts or improve performance.


If you have various CNC machined parts that need to be assembled into a complete product, we have experienced workers who can do it for you easily. And product packaging service is available.

Need Custom CNC Machined Parts?

DEK is the best supplier you can trust. Let’s help you custom parts within a short time and save more cost!

Guide To CNC Machined Parts & Buying F.A.Q

Maybe you have a lot of questions about CNC machined parts in your mind, so here we write the basic guide of machined parts and how we guarantee the best quality for you. Please read on, and you will have a different harvest. If you need to get a quick quote, just click the “Get A Quote” button on the right.

Table of Contents
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    What Are CNC Machined Parts?

    The term CNC denotes “Computer Numeric Control”. CNC machined parts are a number of machined parts produced by CNC machining. CNC machining is referred to as a manufacturing process in which pre-program software helps to determine or decides the tools or parts movements. This process varies in varieties and can range from lathes and grinders to milling machines.

    Benefits When Using CNC Machines to Build Your Parts

    There are many advantages to machining your parts through CNC machines, including fast, precise, stable quality, and low price, etc.

    Precision, Consistency & Redundancy

    While the use of CNC machining to build parts comes with the ease of production, it also helps to achieve consistency, precision, and avoid redundancy. Human errors and inconsistencies can be avoided as result. The use of computer software in designing those parts makes it easy to perfectly replicate the same design of any quantity.

    Increase Productivity & Efficiency

    When CNC machining is used for building parts, continuity is achieved over a long period. Unlike manual labor, the process goes on continuously without break. As a result, it helps to greatly increase efficiency and productivity.

    Require Low Skilled Personnel

    For the production of CNC machined part, low skill requirement is involved. This is because most of the important processes have been done by programmed computer software. This means that operators of CNC machines require little skills and training in comparison with manual machine operators.

    Few Personnel Required

    When CNC machining is used for part creation, the processes are programmed to be carried out by specific computer software. As a result, only a few of these processes require manned labor. Furthermore, few operators are used since most of the processes have been programmed to be carried out.

    Enhance Flexibility

    The use of software in part production can be reprogrammed easily and quickly in the production of other parts. This makes it easy to keep up with the demands of other customers.

    Enhance Capabilities

    With the use of CNC machining technology, computer software used precision to go beyond manual capabilities. This is evident in the ease of performing complex and intricate operations.

    Safety is Achieved

    The use of CNC machines are much safer compared to manually operated machines. As a result, little or no casualties are recorded as they work behind a guard or even a closed transparent safety door.


    The use of traditional machines requires one operator per machine. On the other hand, CNC machining requires fewer operators to function. One interesting thing is that one skilled operator can operate several machines at a time without stress. While this process of producing parts is precise and accurate, it also helps to eliminate unnecessary waste. In the long run, the cost of employing operators and the cost incurred on waste is effectively reduced to the barest minimum.

    Allows Improvement

    The CNC machines used in the production of parts can be updated to align with the latest styles in the manufacturing industry. This is done by the use of software updates that can be used to drive the machines.

    What Materials Can Be Machined?

    When it comes to CNC machining and CNC machined part productions, there are a wide variety of materials to be utilized. Before deciding on which material is the best fit for your project, it is required to be familiarized with the materials available. Material to be used can be divided into three groups, they include:

    • Metals
    • Plastic
    • Others including solid wood/plywood, foams, and many more.


    Metal is one of the most common materials used for CNC milling in the industry. There are vast varieties of metal materials to be selected for a project. Let’s take a closer look at the commonly used options as well as their applications.


    In the CNC machining space, the most commonly used CNC milling material is aluminum because it’s the best option for aspect and mechanical components. The reason for its wide usage is because it is generally easy to machine compared to other materials. As a result, aluminum usage in CNC machining is economically viable. Aluminum made CNC machined parts form protective layers which give them more strength and corrosion resistance. The application includes electronic housing, gears, shafts, aircraft fittings, medical devices, and many more.


    Steel exists in different alloys and most steel parts are always available for CNC milling services which are engineered for excellent machinability. This material – steel, is mostly used for parts in situations where stronger welds and enhanced formability are required. While its application is dependent on the alloy type, its application is found in commercial products, gears, and shafts, parts that require strong welds, and high-stress applications. Commonly used alloys of steel include 12L14, 1018, 1215, and many more.

    Stainless Steel

    Stainless steel is applicable for CNC machined parts and it’s majorly used because it is heat treatable and highly corrosion resistant. Its application exists in vast varieties ranging from electronic hardware to surgical equipment and to other parts that require more weldability and formability. Its application can be found in the aerospace and automotive industry.


    Brass is an alloy of copper and it’s one of the easiest and cost-effective materials for CNC machines. It is durable and strong in its application as it is used in medical equipment, electrical hardware, consumer goods, and more. Besides, brass features high corrosion resistance and low friction coefficient. As a result, it is also found in the fields of engineering, steam work, plumbing, musical instrument, and many more.


    Titanium is one of the common materials used or CNC machined parts due to its high melting point. As a result of this, it is a viable choice for many applications and industries. Titanium is impervious to salt, water, and ductility with high corrosion resistance. Titanium features strength and sturdiness coupled with lightweight and biocompatibility. This is why it is used for medical implants, jewelry, aircraft components, and more.


    Only a few metals in CNC machining space offer the electric conductivity of copper. It is highly resistant to corrosion while its thermal conductivity properties make the shaping process easier during CNC machining. It is mostly used in the automotive industry while other applications include heat exchangers and cooling systems. Others are found in various engineering applications such as radiators and valves.


    All plastic materials are applicable to CNC machining. Let’s take a look at a few of the vast varieties of plastic materials used for CNC machined parts.


    PVC as a form of plastic material is highly applicable in all industry ranging from the production of water to gas pipes to toys and many more. This is because PVC provides a vast variety of impressive properties including resistance to chemicals, flames, corrosion, and many more. It is cost-effective and most affordable of all plastic CNC milling materials.


    While nylon is one of the generally used CNC milling materials, it features impressive properties in its application. It is easy to machine with moderate resistance to flame. CNC machined nylons are commonly found in applications including bearings, insulators, short-run products for injection molding, and many more.


    One of the commonly used plastic materials in the CNC machined part is the Ceramic PEEK. It features superior dimensional stability as well as impact strength. Besides, PEEK features adequate impact resistance which makes it a perfect fit for applications including test sockets, connectors, switches, and many more.

    Other Materials

    Apart from the metals and plastic CNC machining materials, there are other forms of materials that can be used. They include foams and woods.


    This material is light in weight, relatively cheap, and easily machined. It can be used to perform a test run in form of a model before a more expensive CNC milling material. For example, it can be recommended for amateurs in CNC milling technology such as the extruded polyurethane – a blue foam. However, these materials have shortcomings as it is susceptible to dimensional instability including wear and tear.

    Plywood & solid wood

    Plywood & solid wood are used aesthetically in CNC milling as they offer the ability to resist wear and tear. Although both are widely used in this space they have slight differences. One of the major differences is that plywood offers more dimensional stability compared to solid woods. Plywood is quite expensive and requires specialized cutting tools in its applications.

    What Are The Common Applications of CNC Machined Parts?

    CNC machined parts are popularly known in the manufacturing industries today. Its application is not limited to any single sector because machining is virtually used everywhere. Application of CNC machined parts can be found in different categories of industries including:


    The aerospace industry has been using CNC machined parts for quite an age. Metals used in this space especially for aircraft components are machined to a high level of precision. This is essential for safety-critical applications. CNC Machinable aerospace components include:

    • Fuel flow components
    • Landing gear components
    • fuel access panels


    CNC machined parts are regularly used in this industry for both production and prototyping.  Its application is widely used for creating one-off custom automotive parts as well as replacement parts. This is because its CNC machining turnaround times are faster with no minimum required production quantity. CNC machining can be used to machine extruded metal into the following:

    • Gearboxes
    • Valves
    • Axels
    • Cylinder blocks

    Plastic can be machined into the following:

    • Gas gauges
    • Dashboard panels

    Consumer Electronics

    CNC machined parts are normally used for prototyping and production of consumer electronics such as smartphones, laptops, and more. For example, the chassis of an Apple Macbook is machined from extruded aluminum and then anodized. In this industry, CNC machined parts are used in the creation of the following:

    • PCBs
    • Electronic Industry Support
    • Semiconductor Support
    • Jigs
    • Fixtures
    • Housings


    CNC machined parts are majorly used in the military sector for prototyping and production of rugged and reliable parts. These parts withstand wear and tear with low maintenance and they overlap with other industries like electronics and aerospace. CNC machining is relevant here to provide on-demand replacement parts. Also, upgraded components are useful in an industry that demands constant innovation as well as security. Its application can be found in the following:

    • Satellite Systems
    • Internal Computer Assembly
    • Box Cases


    CNC machined parts are applicable in various medically safe materials as well as one-off custom parts. CNC machined parts offer tight tolerances and are essential for the high performance of medical components. CNC machined parts are found in the following:

    • Electronic closures
    • Surgical instruments
    • Implants
    • Orthotics
    • Rapid Diagnostic Test Security

    Oil & Gas Industry

    In the Oil and gas industry, tight tolerance is required for safety-critical applications. This sector uses CNC machining for precise, reliable parts as well as corrosion-resistant materials like aluminum 5052. These CNC machined parts are used for pipelines and refinery equipment. Applications can be found in the following:

    • Cylinders
    • Pins
    • Valve Bodies
    • Fasteners
    • Rail and Switch Gear

    Tooling Industry

    CNC machined parts can be found in the direct manufacturing industry and indirect manufacturing industries such as injection molding and many more. These parts can be used to machine various tools including metal molds and tooling, plastic products, and many more in large quantities. They include:

    • Ball Joints
    • Coinage Die Making
    • Module Blocks
    • Output Shafts
    • Ratchet Gears
    • Spindle Housing Hubs
    • Suspension Arms
    • Tensioners
    • Thermal Control

    What Machines You Will Use?

    We have a complete range of CNC machining equipment that offer impressive function with enough capacity to produce vast varieties of parts. They include:

    3-Axis CNC Milling Machine

    The 3-Axis CNC Milling Machine is known for its rudimentary option and has come a long way in terms of modernization. It is most widely used in the production of mechanical parts in industrial work, architecture, manufacturing, and many more. Its process uses 3-axis including X, Y, Z to shave down the material into the desired shape.

    4-Axis CNC Milling Machine

    With the introduction of the fourth axis, the 4-Axis CNC Milling Machine will be able to rotate around the vertical axis. It is applicable for machining involving millwork and in advance carvings.

    5-Axis CNC Milling Machine

    The 5-Axis CNC Milling Machine moves in the 5-axis including (A, B, X, Y, and Z,). In essence, it allows for parts manipulations from all directions in one operation of the machine. This machine is ideal for deeper parts, more precision, and harder materials. Its advantage is that it is faster compared to the 3-Axis CNC Milling Machine because of its flexibility.

    CNC Turning Machine

    This machine is mostly called a lathe and can either be vertical or horizontal depending on the tolerance and weight of the workpiece. It features a turning center that rotates your workpiece. Another impressive part is a tool that moves back and forth into the workpiece to cut your workpiece into the desired shape.

    CNC Swiss Turning Machine

    The CNC Swiss turning machine is a machine used for swiss turning. Swiss turning is a specialized process for machining high and small precision turned parts.

    Centerless Grinder

    The centerless grinder is used for centerless grinding in CNC. This centerless grinding involves a machining process that uses abrasive cutting to remove materials from a workpiece. In this case, no spindle or fixtures is used to secure and locate the workpiece. It is typically used in a situation where many parts must be processed in a short period of time.

    Surface Grinder

    The CNC surface grinder features a grinding wheel that rotates on a horizontal axis cutting around the circumference of the grinding wheel. They are intricately designed to accommodate infinite demands of production at a high rate no matter how big or small the project can be. The surface grinder features an abrasive wheel, a reciprocating or rotary table, and a work-holding device known as a chuck.

    Honing Machine

    Honing machines are referred to as metal abrading tools as well as honing processes utilizing hard tooling. The CNC honing machine is used for correcting shape, diameter, surface finish, and positional tolerances of bores.

    EDM Machine

    The EDM – also known as electrical discharge machining is a metal fabrication process in which the desired shape is obtained by using electrical discharges such as sparks. It s also known as spark eroding, wire burning, wire erosion, spark machining, or die sinking. For those parts that need surface special-shaped processing or need to drill precision inner holes, we will use the EDM machines to process.

    Deep Hole Drilling Machine

    In the CNC space, a deep hole drilling machine is a metal cutting machine tool that is designed to produce very deep as well as precision holes into virtually any metal. These machines provide and integrate technology used by tools and optimize all aspects of the process o drill deep holes with reliability, efficiency, and accuracy.

    Can You Provide Surface Finishing Services After Parts Machined?

    Yes. Use DEK Company as your one-stop solution for both production and surface finishing of your custom CNC machined parts. Our surface finishing services exist in vast varieties as shown below:

    • DLC coating
    • PVD Coating
    • Spraying
    • Sandblasting
    • Anodizing

    Smooth machining and many more depending on your request

    How do We Guarantee the Quality of Machined Components?

    Irrespective of the industry, the quality of machined components is crucial. This will ensure that the machined components meet the expectations of the customer, industry regulations and trade standards. For everyone’s benefit, DEK company implements quality control with varieties of measures and tools to inspect CNC machined parts we produce. Quality control is referred to as an overall inspection of manufacturing processes and products. In essence, it helps to avoid defective products, ensure dimensional accuracy and quality, minimize risk, conserve resources, improve efficiency, and reduce cost. Here at DEK company, we focus on CNC machined component’s quality control. The following tips are our way of ensuring effective quality control:

    We learn about the background of our client’s industry

    As soon as we receive orders, we learn about the client’s industry. This is because each industry has different standards. For example, military and medical machined parts require outstanding precision, tight tolerances, and excellent quality. DEK company specializes in custom CNC machined parts in a wide range of industries including food processing, packaging, electronics, automobile, aerospace, marine, military, high-tech, machine tools, and many more.

    Understanding of the product's design

    Before we embark on production, our designers and engineers take their time to analyze the design in detail and carefully. This is done in accordance with our customer’s specifications.

    We examine our parts with precise measuring tools

    We make use of a variety of advanced tools for the measurement of dimensions, colors, hardness, tolerance, and many more. This quality control processes are done when the parts are on the machine or after removing from the machine.

    Inspection of parts during operations

    We normally carry out quality inspection whenever the machine parts are running. This is mostly done to identify problems that may arise at an early stage to rework it before finishing. Some operations can be done to adjust the machine for holding tighter tolerances such as allowing the tool to machine the workpiece, measuring what the tool has done, and adjusting the tool offset to leave a little excess stock.

    Effective communication with customers during the whole process

    We normally prefer effective communication with our customers right from the time samples are sent to the time we complete production. This helps to achieve our client’s requirements. As soon as we spot any discrepancy, we’ll get in touch. Even when it comes to giving you updates on production progress as well as giving out tests and material reports. All this helps us achieve excellent quality control overall.

    What Testing Equipment You Will Use?


    A CMM is also known as a coordinate measuring machine. It is a machine that accurately measures the geometry of an object or workpiece. The measurement is mostly done along X, Y, and Z axis using a torch trigger, vision, or scanning probe to note a series of precise points on the workpiece.


    In CNC machined components, accurate measurement is critical for precision. The Micrometer otherwise known as micrometer screw gauge is a precision measurement tool with a calibrated screw. This is mainly used to measure small thickness or distances between two faces of machining parts. It is also used alongside other metrological instruments such as verniers, digital calipers, dial, and many more.

    Video Measuring Machine

    Video Measuring Machines are tools in CNC machining for precision dimensional measurements of small parts. These measurements are done purposely offline to minimize environmental variables with the use of a video camera and lens system. The system enables 3-dimensional measurement of small parts by magnifying the part image and then identifying the edges using metrology software.


    The altimeter is designed for a wide range of metal finishing, woodworking, and more in the CNC machining space. It features a digital display for digital reading for use on milling machines, planning machines, drill press, tables, milling machines, and many more.

    Density Instrument

    The density instrument is one of the testing equipment used in CNC machining. Its application is in the measurement of parts to be measured for machining. It boasts of high precision results in every repetitive measurement and helps to ensure that final test results meet with exact desired specification.

    Roundness Tester

    The roundness tester machine is used for measuring the axis in an additional range of parameters including cylinder form, straightness, parallelism, perpendicularity, and many more. It is more effective in its application through the use of the semi-automatic function of measurement at a specified speed.

    Rockwell Hardness Tester

    The Rockwell Hardness Tester is a hardness testing machine that uses either a conical diamond or steel ball. The hardness of the material is then indicated by determining the depth of penetration of the indenter under a known load. This machine measures the hardness of a material by measuring effects on its surface of a localized penetration by a pointed or rounded indenter of carbide, diamond, or hard steel.

    Gauges: Pin Gauge, Plug Gauge, Thread Gauge

    For some standard size parts, we have various pin gauges, plug gauges and thread gauges for testing.

    How to Buy CNC Machined Parts?

    The following are the steps involved in buying CNC machined parts from us

    Step 1: The first step is to confirm your drawings either in 2D or 3D as well as other requirements including the type of material, hardness, tolerance, surface finish, and surface treatment.

    Step 2: After your project requirements have been confirmed, send us your inquiry. This can be sent via quote@dekmake.com, or submit via our contact form on our website.

    Step 3: After we receive your inquiry, we’ll send you our quotation via the same channel with which we were contacted. Please makes sure that you fill our contact form correctly so that we will be able to contact you effectively.

    Step 4: After the steps above, confirm our quotation. Then, you will be enjoined to make a purchase order to us.

    Step 5: On the receipt of your order, we will process your order and begin production as soon as possible.

    Purchase F.A.Q

    Yes. Irrespective of the volume of your order either small or large, we’ve got you covered. Contact us via quote@dekmake.com, or submit via our contact form on our website.

    Yes, we can send you samples of our production if requested before embarking on total production. This will help to avoid wastage and production of products below your standard and requirements. As soon as you confirm the samples, we make an absolute correction on prototypes and embark on total production.

    Yes, DEK offers precision machining and manufacturing services no matter the project’s complexity.

    Yes, as soon as you contact us for your projects, prototypes are required. If you already have a prototype, we can start production. If you don’t, our experts are always available to provide you with excellent prototypes based on your requirements.

    Yes, before we ship all parts, we normally inspect our production to make sure that the shipment is free from error. Our quality control team will make sure that all shipments are inspected to suit our customer’s requirements.

    Yes, based on our expertise, we will always provide you with the test reports for your review if requested. This will enable you to know our progress concerning your project requirements.

    Yes. After receiving your order at DEK, we will fill it in with our progress report. One of the reports is the material report for your review. This is always based on your request.

    Most times, we produce standard products because we have put in place different measures to avoid producing parts with low quality. One of these measures is to send you a sample of our products so that you can access the quality. In situations where quality is not up to standard, we will reproduce. Either way, you are always covered.

    To effectively transport your shipment, we offer two methods for ease of delivery. For small batches, shipments are transported and delivered either by air or express. However, large quantities are transported by sea.

    At DEK Company, we offer impressive ease of payment. For small orders, you can make payment via PayPal and bank transfers while payment for large orders can only be made via bank transfer.

    • Small Orders: Bank Transfer or PayPal
    • Large Orders: Bank Transfer (Recommended)
    Did you know?

    DEK is a China leading supplier of CNC machined parts, we have diverse machining capabilities and focus on high precision machining. Our customers cover aerospace, medical, mold, automotive, optics, consumer electronics, and other fields.

    Custom CNC Machined Components Today
    We are ready for your next great parts. Contact us today, you will receive our response within 4 hours.