CNC Machining Services
Get instant quotes for custom CNC-machined plastic and metal parts.
Precision CNC machining services from prototyping to production, with fast lead times and high-quality results.
- Express service available
- SO 9001:2015, AS9100D, ISO 13485
- Tolerances down to ±0.0005"
- 80+ engineering-grade metals and plastics
- All uploads are secure and confidential
Custom CNC Machining Services
Tuowei Precision is a leading company in the industry that has the best in Custom CNC machines and the team of professionals. We also provide complete solutions in order to fulfill your special requirements, either in prototyping or mass production.
Our CNC machining services are of high quality designed to be precise, cost-effective, and delivered in time.
Customer satisfaction is our priority and the communication and transparency is maintained throughout the process.
What is CNC Machining?
CNC machining is a production procedure, which involves CNC machines to automate the production of parts and components at high levels of accuracy. The principle of these CNC machines is to cut, shape, and finish materials to the precise specifications through written instructions. It has shorter production times and a consistent result, which makes the process perfect in industries that need complex designs and tight tolerances.
CNC machining provides high accuracy parts with the lowest error of human beings, thus quality and efficiency. CNC machining solutions are flexible to all your manufacturing needs in prototyping or mass production.
CNC Machining Services of Custom Parts
At Tuowei, we specialize in delivering CNC machining services of tailor-made parts in different industries. We provide the most precise and quality services that will help you obtain the desired specifications of your components. Our CNC machines are up-to-date with the latest technology to take even the most complicated designs.
Custom CNC milling is a very efficient technique of producing parts that are complex and demand narrow tolerances. Using our state-of-the-art CNC machines, we will be able to provide parts that are accurately milled and with a smooth finish at the same time being very durable. We provide CNC milling service to one off prototypes and large production runs.
Custom CNC turning is very suitable to produce parts in shapes that are cylindrical and precise. Our CNC machines can provide tight tolerance parts and high-quality parts whether it is high-volume, high-speed production, or low-volume production. We are experts in operating several materials to suit your individual requirements.
CNC Machining Tolerances
The accuracy of CNC machining is exceptionally high with very narrow CNC machining tolerance, resulting in high-quality components with low variation in each project.
| Feature Type | Typical Tolerance |
|---|---|
| General Dimensional Tolerance | ±0.025 mm (±0.001") |
| High Precision Tolerance | ±0.005 mm (±0.0002") |
| Hole Diameter (Drilled) | ±0.05 mm (±0.002") |
| Hole Diameter (Reamed/Bored) | ±0.01 mm (±0.0004") |
| Shaft Diameter (Turned) | ±0.01 mm (±0.0004") |
| Flatness | 0.02 mm per 100 mm |
| Parallelism | ±0.02 mm |
| Perpendicularity | ±0.02 mm |
| Surface Roughness (Ra) | 1.6–3.2 µm (63–125 µin) |
| Positional Tolerance | ±0.01 mm to ±0.02 mm |
| Thread Tolerance (Cut) | 6H / 6g (ISO) or Class 2A/2B (ANSI) |
| Minimum Feature Size | 0.5 mm (0.020") |
| Repeatability | ±0.005 mm (±0.0002") |
CNC Machining Design Guidelines
Use our state-of-the-art CNC machines with design instructions on how to produce efficiently and precisely, following guideline design instructions provided by TUOWEI expert CNC machining designs.
| Feature | Specification / Guideline |
|---|---|
| Radii | Avoid sharp inside corners. |
| Threads & Tapped Holes | Depth: 3× diameter (Φ1.5–5 mm); 4–6× diameter (Φ≥5 mm). |
| Undercuts | Supported: Square, Full radius, Dovetail profiles. |
| Engraving Options | CNC and laser engraving as per requirements. |
| Wall Thickness | Min. 0.8 mm for strength. |
| Draft Angles | Minimum 1–3° for easy part removal. |
| Hole Sizes | Avoid holes < 0.5 mm; consult for tooling. |
Surface Finishing CNC machining
We provide a wide range of CNC machining surface finishes to fulfill your aesthetic, functional, and durability requirements at TUOWEI, which promises the best quality results with every individual part produced.
As-milled finish has the natural texture of CNC machining, and is good where the look is not as important as the use, giving an economical answer with basic surface quality.
Bead blasting provides a non-polished, rough surface to components produced using CNC machines, which works well to enhance surface texture, more grip and eliminate surface flaws and a uniform and professional appearance.
Powder coating provides high-quality, long-lasting finish to parts, attractive and providing greater protection to parts presented through CNC machines, and this quality makes them resistant to weather, chemicals, and abrasions.
Most CNC machining projects use brushing to create a smooth, refined finish to the surface, giving them a modern, polished appearance with increased texture as well as extended durability, a common practice on decorative or functional surfaces.
Parts produced using CNC machines undergo polishing to provide a smooth and shiny surface, which improves the overall appearance, minimizes friction and increases the wear and corrosion resistance of the part.
Black oxide is a finishing that offers corrosion resistance and a dark and smooth surface, which is ideal in the case of parts produced via CNC machining requiring extra durability and a clean and attractive, consistent coating.
| Aluminium Alloy | Description | Finishing Options | Applications |
|---|---|---|---|
| 6061 | Versatile and commonly used for structural applications. | Anodizing, Powder Coating, Polishing | Construction, Aerospace, Automotive |
| 7075 | High strength, ideal for aerospace and military applications. | Anodizing, Powder Coating, Polishing | Aerospace, Military, High-Strength Components |
| 2024 | Known for its high strength and excellent fatigue resistance. | Anodizing, Cladding, Painting | Aerospace, Military, Structural Components |
| 5052 | Good corrosion resistance and formability, used in marine and automotive applications. | Anodizing, Painting, Polishing | Marine, Automotive, Sheet Metal Work |
| 5083 | Exceptional performance in extreme environments, particularly marine applications. | Anodizing, Painting, Polishing | Marine, Chemical, Industrial |
| 6082 | Excellent extrudability, used for architectural and engineering applications. | Anodizing, Powder Coating, Polishing | Architecture, Engineering, Window Frames |
| 7050 | High strength and stress corrosion resistance, often used in aerospace. | Anodizing, Cladding, Painting | Aerospace, High-Stress Components |
| 1100 | Commercially pure aluminum, excellent corrosion resistance and workability. | Anodizing, Painting, Polishing | Chemical Equipment, Food Processing, Heat Exchangers |
| Brass Alloy | Description | Finishing Options | Applications |
|---|---|---|---|
| C260 | Cartridge brass, excellent for cold working. | Plating, Polishing, Lacquering | Ammunition, Heat Exchangers, Plumbing |
| C360 | Free machining brass, used for precision parts. | Plating, Polishing, Lacquering | Precision Machined Parts, Fasteners, Plumbing |
| C353 | High leaded brass, high strength, used in plumbing. | Plating, Polishing, Lacquering | Plumbing, Fasteners, Valve Components |
| C385 | Architectural bronze, applications for its decorative appeal. | Plating, Polishing, Lacquering | Architectural Trim, Ornamental Hardware, Plumbing |
| C272 | Yellow brass, excellent corrosion resistance, used in electrical components. | Plating, Polishing, Lacquering | Electrical Components, Fasteners, Plumbing |
| Copper Alloy | Description | Finishing Options | Applications |
|---|---|---|---|
| C101 | Oxygen-free, high conductivity, used in electrical applications. | Plating, Polishing, Lacquering | Electrical Conductors, Switches, Terminals |
| C110 | Electrolytic tough pitch, highly conductive, used in electrical and plumbing. | Plating, Polishing, Lacquering | Electrical Wiring, Plumbing, Busbars |
| C122 | Phosphorus-deoxidized, used in heat exchangers and radiators. | Plating, Polishing, Lacquering | Heat Exchangers, Radiators, Plumbing |
| C172 | Beryllium copper, high strength, used in aerospace and oil drilling. | Plating, Polishing, Lacquering | Aerospace, Oil Drilling, Springs |
| C194 | High conductivity, used in automotive and electrical applications. | Plating, Polishing, Lacquering | Automotive Connectors, Electrical Connectors, Springs |
| C210 | Low brass, good ductility and strength, used in fasteners and hardware. | Plating, Polishing, Lacquering | Fasteners, Hardware, Musical Instruments |
| C220 | Commercial bronze, used in jewelry and musical instruments. | Plating, Polishing, Lacquering | Jewelry, Musical Instruments, Architectural Hardware |
| C230 | Red brass, used in architectural applications and hardware. | Plating, Polishing, Lacquering | Architectural Applications, Hardware, Plumbing |
| Grade | Description | Finishing Options | Applications |
|---|---|---|---|
| 301 | Excellent machinability, used for making automotive parts bolts, nuts, and screws. | Polishing, Passivation, Bead blasting | Used for making automotive parts, bolts, nuts, and screws. |
| 304 | Most versatile and widely used stainless steel, used in kitchen equipment tanks, piping, and tubing. | Polishing, Brushing, Passivation | Used in kitchen equipment, tanks, piping, and tubing. |
| 304L | Low carbon version of 304, used for chemical containers and transport. | Electropolishing, Passivation, Bead blasting | Used for chemical containers and transport. |
| 316 | Contains molybdenum for increased corrosion resistance, used in marine applications and chemical processing equipment. | Polishing, Passivation, Bead blasting | Used in marine applications and chemical processing equipment. |
| 316L | Low carbon version of 316, used for surgical instruments and marine hardware. | Electropolishing, Passivation, Bead blasting | Used for surgical instruments and marine hardware. |
| 410 | Martensitic grade, used for fasteners and medical instruments. | Hardening, Polishing, Passivation | Used for fasteners and medical instruments. |
| 416 | High machinability, used for gears, shafts, and valves. | Polishing, Passivation, Bead blasting | Used for gears, shafts, and valves. |
| 420 | High hardness, used for surgical instruments and cutlery. | Hardening, Polishing, Passivation | Used for surgical instruments and cutlery. |
| 430 | Ferritic grade, used for automotive trim and dishwashers. | Polishing, Brushing, Passivation | Used for automotive trim and dishwashers. |
| Steel Alloy | Description | Finishing Options | Applications |
|---|---|---|---|
| 4140 | Chromium-molybdenum steel with high toughness and good fatigue strength. | Heat Treating, Anodizing, Powder Coating | Gears, Shafts, High-Stress Components |
| 4340 | Nickel-chromium-molybdenum steel with excellent toughness and strength. | Heat Treating, Anodizing, Powder Coating | Aircraft Landing Gear, Automotive Parts, Heavy Duty Shafts |
| 8620 | Nickel-chromium-molybdenum alloy steel, case hardening steel. | Carburizing, Heat Treating, Plating | Gears, Pins, Automotive Parts |
| 1018 | Low carbon steel, good weldability and machinability. | Painting, Powder Coating, Galvanizing | Structural Applications, Shafts, Spindles |
| 1045 | Medium carbon steel, high strength and impact resistance. | Heat Treating, Plating, Painting | Gears, Shafts, Machinery Parts |
| 4130 | Chromium-molybdenum alloy steel, good strength and toughness. | Heat Treating, Anodizing, Powder Coating | Aircraft Components, Bicycle Frames, Automotive Parts |
| 1210 | Low carbon steel, good formability and weldability. | Galvanizing, Painting, Powder Coating | Automotive Parts, Machinery Components, Structural Steel |
| 17-4 PH | Precipitation-hardening stainless steel, high strength and hardness. | Heat Treating, Anodizing, Passivation | Aerospace Components, High-Strength Applications |
| Titanium Alloy | Description | Finishing Options | Applications |
|---|---|---|---|
| Grade 1 | Commercially pure titanium, excellent corrosion resistance and formability. | Anodizing, Polishing, Sandblasting | Chemical Processing, Marine, Medical |
| Grade 2 | Commercially pure titanium, balance of strength and ductility. | Anodizing, Polishing, Sandblasting | Aerospace, Medical, Marine |
| Grade 5 (Ti-6Al-4V) | Most commonly used titanium alloy, high strength and light weight. | Anodizing, Polishing, Heat Treating | Aerospace, Medical Implants, Marine |
| Grade 9 | Titanium alloy with good weldability and cold formability. | Anodizing, Polishing, Sandblasting | Aerospace, Chemical Processing, Marine |
| Grade 23 (Ti-6Al-4V ELI) | Extra-low interstitial variant of Grade 5, high strength and toughness. | Anodizing, Polishing, Heat Treating | Medical Implants, Aerospace, Marine |
| Grade 7 | Commercially pure titanium with excellent corrosion resistance. | Anodizing, Polishing, Sandblasting | Chemical Processing, Marine, Medical |
| Grade 12 | Titanium alloy with excellent corrosion resistance and strength. | Anodizing, Polishing, Heat Treating | Chemical Processing, Marine, Aerospace |
| Plastic Material | Description | Finishing Options | Applications |
|---|---|---|---|
| ABS | Acrylonitrile Butadiene Styrene, good impact resistance and toughness. | Painting, Plating, Sanding | Automotive Parts, Consumer Products, Enclosures |
| PC | Polycarbonate, high impact resistance and transparency. | Polishing, Sandblasting, Painting | Optical Discs, Safety Equipment, Automotive Parts |
| PMMA | Polymethyl Methacrylate (Acrylic), excellent optical clarity and weather resistance. | Polishing, Sanding, Painting | Displays, Lenses, Lighting Fixtures |
| POM | Polyoxymethylene (Delrin/Acetal), high stiffness and low friction. | Machining, Sanding, Polishing | Gears, Bearings, Medical Devices |
| PEEK | Polyetheretherketone, high temperature and chemical resistance. | Machining, Sanding, Polishing | Aerospace, Medical Implants, Semiconductor Parts |
| PP | Polyphenylene , high mechanical and thermal properties. | Machining, Sanding, Polishing | Automotive, Electrical Components, Industrial Applications |
| PA66 | Polyamide (Nylon 66), high mechanical strength and rigidity. | Machining, Sanding, Polishing | Mechanical Parts, Automotive, Electrical Insulation |
| PEI | Polyetherimide (Ultem), high strength and excellent electrical properties. | Machining, Sanding, Polishing | Aerospace, Medical Devices, Electrical Components |
| SAN | Styrene Acrylonitrile, good chemical resistance and transparency. | Machining, Sanding, Polishing | Housewares, Cosmetic Containers, Automotive Parts |
| HIPE | High Impact Polystyrene, good impact resistance and machinability. | Machining, Sanding, Painting | Packaging, Consumer Products, Electrical Insulation |
| HIPD | High Impact Polypropylene, high impact resistance and low density. | Machining, Sanding, Painting | Automotive Parts, Industrial Applications, Consumer Goods |
| Fiber-Reinforced Materials | Composite materials with enhanced mechanical properties. | Machining, Sanding, Painting | Aerospace, Automotive, Sporting Goods |
Gallery of Excellence
Explore the superior design and excellence of components made in Tuowei by the state of the art CNC machines.
Our products are of superior quality and we offer precision-engineered components in a cutting-edge CNC machine and a skilled workforce. We trust in transforming your ideas into dependable and high performance parts every time.
Why Choose Tuowei?
We ensure that at Tuowei, our quality parts are of high quality because of the close inspection and the most recent CNC machining, whereby each part will be of your specifications with excellent consistency and finish.
We have a lean process and the latest CNC equipment that enables us to produce personalized parts with faster speeds without affecting their quality and thus your project will be on time and your deadlines will never be missed.
Take advantage of our skilled engineering staff to design to production with the best CNC machining plans, manufacturability, low costs, and performance of any project.
Partner with Tuowei Precision to Shape Your Vision
From rapid prototypes to scalable production, Tuowei Precision delivers reliable CNC machining with accuracy and consistency at every step. Start your project today.
- Established engineering skills.
- Global project support
- Advanced CNC solutions
- Co-creation of products.
- Expandable capacity of production.
- All uploads are secure and confidential
Tuowei Proto's Solutions
Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Tuowei Proto services offer the flexibility you need.
CNC rapid prototype machining is perfect for creating engineering or production prototypes that closely resemble the final product in both appearance and functionality. At Tuowei, we offer instant quotes and fast delivery, providing you with precise, high-quality CNC machined prototypes for your needs.
- Lead Time: 1-5 business days
- Capability: 1-100 pcs
- Get 20% off the price
Low volume CNC machining often acts as a bridge between prototyping and mass production for new and emerging production. With Tuowei, this process becomes easier, more efficient, and cost-effective, allowing you to scale production quickly while maintaining high-quality standards.
- Lead Time: 5-15 business days
- Capability: 101-10,000 pcs
- Meet tight specifications
CNC production machining is the best solution for producing a thousand parts or more efficiently. Leveraging a diverse selection of materials and automation and multi-axis capabilities, Tuowei delivers high-volume production with tight tolerances, superior dimensional accuracy, high reliability and fast turnaround times.
- Lead Time: 2-4 weeks
- Capability: Above 10,001 pcs
- Consistent Quality
Explore Insights & Innovation
Keep updated on the real CNC machining, industry trends, and production insights in Tuowei Precision, but is installed to enable you to make better production decisions.
Frequently Asked Questions
CNC Machining
What is CNC Machining?
CNC machining is a production process utilizing computer controlled machine to make components out of a range of materials in great precision. Based on pre-programmed instructions, these machines are used to cut, drill, and shape the workpiece providing consistent and precise results.
What are the advantages of the CNC machines?
CNC machines have a number of significant benefits: their parts are highly precise and repeatable; they are able to work with complex geometries; they can be run very fast; and they can be run on either a small scale or a large scale with still high quality.
Which are the materials that are compatible with CNC machining?
CNC machines are able to work with most materials- aluminum, steel, titanium, plastics, wood and composites. They can be programmed to fit a broad spectrum of industries such as automotive to aerospace because of their versatility.
What is the fraction of accuracy of CNC machining?
CNC machining is capable of providing extraordinary precision with a typical range of capable tolerance of ±0.001 in. or less based on the machine and material. This is done by designing the process to ensure that all its components are within the required dimensions and quality.
What do I need to do to begin CNC machining my project?
First, avail comprehensive design files e.g., CAD drawings with specification of the dimensions of your part. These files are used by CNC machines in order to produce the component. This can then be followed up by contracting a CNC service provider to receive quotes, schedule, and support throughout the project.