Advanced Precision CNC Milling Services – China Top CNC Milling/Milled Parts Manufacturer
CNC (Computer Numerical Control) milling is a precision machining process that utilizes computer-controlled milling machines to shape work pieces by rotating cutting tools. Our CNC milling services offer a combination of high accuracy, efficiency, and versatility, catering to a wide range of industries and applications.
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PROCESSING ADVANTAGES
Our CNC milling services offer a combination of high accuracy, efficiency, and versatility, catering to a wide range of industries and applications.
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HIGH PRECISION
Our CNC milling machines achieve micron-level accuracy, ensuring consistent results for every part. This precision is crucial for applications where tight tolerances are required.
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COMPLEX SHAPE CAPABILITY
Whether it's simple planes or intricate three-dimensional structures, our CNC milling services can handle it all. The ability to move the cutting tool across three coordinate axes allows for the creation of various complex shapes.
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HIGH EFFICIENCY
Automation in CNC milling significantly boosts production efficiency. With automated programs, reduced operator intervention, and minimized downtime, we can quickly produce large batches of identical parts.
CNC Milling Tolerance
We have multiple CNC manufacturing capabilities and can meet a wide variety of needs.
Size
☑ Threaded Holes
☑ UNC & UNF threads from #2 up to 0.5 in.
☑ Metric threads M1.2 and above.
Radii: turned outside corners will typically include a 0.005 in. chamfer.
Minimum hole size:
☑ Minimum on-axis and axial: 0.04 in. (1mm)
☑ Minimum radial: 0.08 in. (0.5mm), 0.04 in (0.5mm) for aluminum and brass
Grooves:
☑ Minimum OD groove width: 0.047 in. (1.2mm)
☑ Minimum OD groove width for aluminum and brass:0.019 in (0.5mm)
☑ Maximum OD groove depth: 0.95 in. (24.1mm)—varies with a groove width
Linear dimension
+/- 0.025mm
+/- 0.001 inches
Hole diameter (not reamed)
+/- 0.025mm
+/- 0.001 inches
Shaft diameter
+/- 0.025mm
+/- 0.001 inches
Part Dimension limit
950*550*480mm
37.0 * 21.5 * 18.5 inches
CNC Machining Standards
| CNC Machining Standards (DIN ISO 2768-1(1991-06) | ||||||||||||||
| Tolerance class | tolerance(mm) | |||||||||||||
| Metal (ISO 2768-F) | Plastic (ISO 2768-F) | |||||||||||||
| 0.5～3 | Over 3 to 6 | Over 6 to 30 | Over 30 to 120 | Over 120 to 400 | Over 400 to 1000 | Over 1000 to 2000 | 0.5～3 | Over 3 to 6 | Over 6 to 30 | Over 30 to 120 | Over 120 to 400 | Over 400 to 1000 | Over 1000 to 2000 | |
| F | ±0.05 | ±0.05 | ±0.1 | ±0.15 | ±0.2 | ±0.3 | ±0.5 | ±0.05 | ±0.05 | ±0.1 | ±0.15 | ±0.2 | ±0.3 | ±0.5 |
1 General Tolerances For Shape And Position
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General tolerances for shape and position (DIN ISO 2768-2(1991-04) |
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Tolerance class |
tolerance(mm) |
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Straightness and Flatness |
Verticality |
Symmetry |
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10 |
10～30 |
30 to 100 |
100 to 300 |
300 to 1000 |
1000 to 3000 |
to 100 |
100 to 300 |
300 to 1000 |
1000 to 3000 |
to 100 |
100 to 300 |
300 to 1000 |
1000 to 3000 |
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H |
±0.02 |
±0.05 |
±0.1 |
±0.2 |
±0.3 |
±0.4 |
±0.2 |
±0.3 |
±0.4 |
±0.5 |
±0.5 |
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SURFACE TREATMENT
After precision milling, our parts can undergo various surface treatments to enhance their appearance, strength, and corrosion resistance. Common surface treatment options include:
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ANODIZING (FOR ALUMINUM)
Forms a durable oxide layer, improving dimensional stability and providing an aesthetic finish.
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POWDER COATING
Offers a protective layer that is thin, hard, durable, and visually appealing. Suitable for all metal types.
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BEAD BLASTING
Removes tool marks and imperfections, creating a matte or satin finish without altering the material's properties.
Application Areas
Our CNC milling services are widely utilized across multiple industries:
☑ Mechanical Parts: Key components for various machinery and equipment.
☑ Automotive Components: High-precision parts such as engine components and body structures.
☑ Medical Device Components: Ensuring reliability and safety in medical equipment.
☑ Aerospace Parts: Complex structures like turbine blades and aircraft fuselage components, where precision and strength are paramount.
Conclusion
Our CNC milling services provide a comprehensive solution for precision machining needs. With advantages in accuracy, efficiency, and versatility, combined with strict dimensional tolerances and a range of surface treatment options, we cater to various industries. To illustrate our capabilities further, images and detailed data tables are available upon request. Contact us today for your CNC milling needs.
CNC Milling FAQs
- 1. What parts can be made by CNC milling?
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☑ Plane: CNC milling machines can be used to process various planes, including straight lines, arcs and various complex shapes.
☑ Cam: The cam is a common part in machinery, and the CNC milling machine can be used to process various shapes of the cam.
☑ Thread: CNC milling machines can be used to process a variety of threads, including precision threads and special-shaped threads.
☑ Holes: CNC milling machines can be used to process holes of various shapes and sizes, including straight through holes, blind holes, inclined holes, etc.
☑ Curved surfaces: CNC milling machines can be used to process various complex curved surfaces, including spherical surfaces, rotating surfaces and free-form surfaces.
☑ Gears: CNC milling machines can be used to process various gears, including spur gears, helical gears, arc gears, etc.
In short, CNC milling machines can be used to process parts of various shapes and sizes, and have the advantages of high precision, high production efficiency, and stable machining accuracy.
- 2. CNC Milling Process – What is the Process of CNC Milling?
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Starting from designing a CNC milling part drawing or geometry with CAD software, then CAM software converts the file to CNC machine program, which can dictate the machine what to do and how to do. CNC milling services apply computerized technique to complete the manufacturing as the following basic production stages:
☑ Designing a CNC Milling CAD model.
☑ Converting the CAD model into a CNC milling program.
☑ Setting up the CNC milling machine.
☑ Cutting small pieces off the block material to obtain approximate shape.
☑ Executing the CNC milling operation with higher precision and accuracy.
- 3. What is the difference between CNC turning and CNC milling?
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Turning operations are performed by rotating the work piece and using a stationary cutting tool, and milling operations are performed by rotating the cutting tool and leaving the workpiece locked in place.
- 4. What types of materials do CNC mills use?
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The most common materials used in CNC milling are metals such as brass, Titanium, aluminium or steel, and plastics such as PVC, ABS, polycarbonate and polypropylene.
- 5. What Are Tolerances?
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In short, tolerances are measurements that signify the level of precision needed for a part that you want to manufacture. Specifically, machining tolerances indicate the degree of variation permitted in a part’s final dimensions or measured value.
- 6. What kind of a finish does CNC machining leave?
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Due to the spinning motion produced by the CNC milling machine's cutter, the surface finish of CNC machined parts will have visible toolmarks. If you require a smooth, unblemished finish to your part, we recommend choosing a secondary finish: grained finish or powdercoat.
- 7. Can you lathe parts?
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Yes, we offer CNC Turning (Lathe), as well as CNC Machining with 5-Axis, 3-Axis and CNC Routers.
