We provide a wide range of precision CNC machining prototyping service such as milled parts, turned parts, CNC machined prototypes. With precision 3-axis, 4-axis and 5-axis CNC machining centers, combined with other advanced capabilities and our 20+ years of team experience, we can handle all types of CNC machined parts and CNC machined prototypes in metal and plastic materials.

Our CNC Machining Service

With 20 years of experience in CNC machining, Hemtom offers milling, turning, and CNC prototyping services. If you need to manufacture machined parts with complex geometries, or obtain end-use products in the shortest possible time, we can quickly turn your ideas into reality. We have engineers with 15 years of experience, over 50 three-axis and five-axis CNC machines, more than 100 different types of materials and surface treatments, and we manufacture over 10,000 CNC parts per month. We ensure a fast turnaround time while maintaining quality assurance for both project prototypes and production parts.

CNC Milling

3 and 5 axis CNC milling service

CNC milling is capable of efficiently producing bespoke parts from workpieces with precise cutting and multi-point milling cutters. Our milling services, with both 3-axis and 5-axis capabilities, can achieve tolerances as tight as 0.02 (0.00008 inches). This includes the production of fittings, gears, pumps, engine parts, surgical instruments, and more.

CNC Turning

CNC Turning Service

CNC turning aligns the rotating workpiece within a tolerance of 0.02 (0.00008 inches) using drills, reamers, taps, dies, knurls, and other tools. For instance, this process is used to create parts such as nozzles, nuts and bolts, bullets and guns, pipes, ball joints, rollers, circular turbines, and more

cnc machining prototype

CNC Machining Prototype

Hemtom provides CNC machining prototyping service. Whether it's a visual model or a structural prototype, we can do it all. The product industry range includes electronic products, industrial components, etc., and supports single-piece minimum order.

CNC Materials

Aluminum:EN AW-2007 / 3.1645 / AlCuMgPb, EN AW-6060 / 3.3206 / Al-MgSi, EN AW-6061 / 3.3211 / Al-Mg1SiCu, EN AW-6082 / 3.2315 / Al-Si1Mg, EN AW-5083 / 3.3547 / Al-Mg4.5Mn, EN AW-7075 / 3.4365 / Al-Zn6MgCu, Custom aluminium alloys are also available

Steel & Stainless Steel:1.0038 / St37-K / S235JR, 1.0503 / C45, 1.0570 / St52-3 / S355J2G3, 1.4301 / X5CrNi18.10(V2A), 1.4404 / X2CrNiMo17-12-2 (V4A), 1.4571 / X6CrNiMoTi17-12-2, 1.7131 / 16MnCr5, 1.7225 / 42CrMo4, Custom steel alloys and stainless steel alloys are also available

Copper & Brass:2.0060 / E-Cu57 / Cu-ETP / CW004A, 2.0065 / E-Cu58 / CW004A, Ms58 / 2.0401 / CuZn39Pb3, Custom copper and brass alloys are also available

Titanium:Grade 2 / EN 3.7035, Grade 5 / 6AL-4V9

Polymers:ABS, Acrylic, Acetal / Delrin / POM, Nylon / Polycaprolactam, PC / Polycarbonate, PEEK / Polyether ether ketone, PEEK Glass-Filled, PP Polypropylene, PTFE / Teflon, PVDF, UHMW PE / Ultra-high-molecular-weight polyethylene, Custom polymers are also available

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machining parts with finishing
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CNC Finishes

As-Machined: This is a finish option with the fastest turn around. Parts are left with visible tool marks and potentially sharp edges and burrs, which can be removed upon request.

Coating services: Zing Coating / Galvanising
Electroless Nickel Plating
Anodizing: Hard & Colour (Black Hardcoat, Black, Blue, Gold, Gray Hardcoat, Green, Natural Hardcoat, Natural, Orange, Red)

Surface finishes:Polishing / Electropolishing
Bead Blasting
Painting & Powder Coating
Case Hardening

Heat treatment:Quenching and Tempering, Normalizing and Tempering, Annealing

Customize: Additional processing and finishes on request.

CNC tolerances of prototypes are +/- 0.01 mm per 100 mm and +/- 0.05 mm per 100 mm.
We can achieve much lower tolerances  depending on the geometry, material and process. 

Our technical team will consult with you on every detail of your project to ensure the best possible precision.  

Our typical tolerance accuracy ranges from 0.001″ – 0.005″, depending on customer specs.

Our Works

 In the past two decades, we have completed one wonderful masterpiece after another for our customers.

Why choose us for custom CNC machining?

Computer Numerical Controlled (CNC) machining is optimal for small batch models. This method allows for various materials, details and also tremendous finish options.

Online instant quotes and DFM analysis

Simply upload your CAD design files online to receive an instant CNC quote.Our digital quoting platform analyzes your part geometry and provides real-time and competitive pricing and design analysis.

Consistently high quality

With advanced processing equipment, leading CNC technology, strict quality inspection, to ensure that the quality of precision machining parts is consistent and in line with expectations.

Fast delivery time

We have a digital CNC machining service platform to provide a faster order process, and also have the most advanced machines and production workshops to reduce waste and speed up the production of your prototype or parts. Excellent foreign trade environment, close to sea and shipping ports, greatly speeds up the delivery time.

Wide selection of materials

Provide a wide range of material options, 30+ kinds of plastic and metal materials. Including metal parts (aluminum, stainless steel, platinum, copper, etc.), plastic parts (ABS, polycarbonate, nylon, etc.), suitable for various parts and industries.


If you want to enquire or have any questions, please fill out the form below and we will contact you as soon as possible.

What is CNC machining / working principle

CNC numerical control is a metal subtractive manufacturing technology.The cutting shape and size of the tool is controlled by a computer program, and the abbreviation CNC stands for Computer Numerical Control.

The advanced CNC machine can produce the products you need on time. Hemtom Model adopts fully automatic CNC machine tool, which determines everything from the movement of the cutting head and parts to the spindle speed and RPM through intelligent programming, and directly controls the CNC machine tool without manual operation.

Engineers define the shape and mechanical properties of the part in CAD software, and then translate this information into manufacturing instructions for CAM (computer-aided manufacturing) software. Finally, it is converted into a recognizable “G-Code” format and loaded onto the CNC machine to start cutting.

At the beginning of machining, the tool is in contact with the workpiece, and the tool and workpiece are moved and rapidly rotated according to the CNC command, making accurate cuts until the part is completed.

What is CNC

Frequently Asked Questions

CNC machining is suitable for the variability characteristics of new product development and small batch manufacturing requirements. If you don’t want to invest too much, want to reduce complicated projects and speed up the transaction time, you can choose our CNC processing.

Materials used for precision CNC machining generally have properties such as dimensional stability, ease of processing, corrosion resistance, and impact resistance. CNC machining can process metals, alloys, composite materials, semiconductors and engineering plastics. For example: stainless steel, steel, brass, aluminum and aluminum alloys, titanium, copper and copper alloys, polycarbonate, etc.

The basic guarantee of CNC processing technology is traditional processing, which is to improve CNC processing on the basis of traditional processing. In addition to the difference in operation and formation, CNC machining has higher precision and wider flexibility, which reduces work efficiency. Although it has certain advanced technology, it still has its own shortcomings. Both CNC machining and traditional machining are guidance documents that guide operators to gradually produce parts into qualified parts.

We have 50+ machines for your 24/7 rapid prototyping service, and 300+ technical staff to realize the freedom of mass production for you.
Our CNC processing depends on the number of pieces and materials that customers need to make. The cost of a single piece or two or three pieces will be higher, because we need to count the cost of mold opening. After the mass production is realized in the later stage, the additional money will be less.
Our CNC machining parts are guaranteed to be within 0.01-0.05 mm. After the product is completed, it will be processed and inspected to ensure that the product is of high quality and high precision.

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