What is CNC Milling？
CNC Milling is a precise machining process where the workpiece is securely fixed while a high-speed spindle rotates cutting tools to remove material. Controlled by computer numerical control (CNC), the spindle and machine bed move horizontally and vertically to create complex shapes and detailed features.
CNC milling is widely used for producing intricate parts with tight tolerances across industries like aerospace, automotive, and robotics.
Benefits of CNC Milling
- Precision and Accuracy: CNC milling machines can produce highly accurate parts with tight tolerances, often up to ±0.005mm.
- Versatility: It can create a wide variety of shapes, sizes, and complex geometries, from simple to highly intricate designs.
- Automation: Once set up, CNC milling can operate continuously, reducing manual labor and improving efficiency.
- Multiple Materials: It can machine a wide range of materials, including metals, plastics, and composites.
- Applications: CNC milling is commonly used in industries such as aerospace, automotive, medical, and manufacturing for creating parts like gears, brackets, housings, and intricate components.
Precision CNC Milling Services From China
BestPro is the premier supplier of CNC-milled parts. Our experienced engineers, designers, and procurement units ensure that our services are provided efficiently and cost-effectively for all project needs ranging from prototypes to mass production runs.
All this, backed by high-tech milling centers with a wide range of finishing options, allows us to deliver top-notch quality quickly, reliably, and flexibly – perfect for your precision manufacturing requirements!
Our Processing Parameters
- Common materials
- Aluminum Alloys, Stainless Steel, Carbon Steel, Alloy Steel, Titanium Alloys, Copper & Copper Alloys, Plastics
- Surface Treatment
- Hard Coating, Black Anodize, Clear Anodize, Hard Chrome, Clear Zinc, Plasma Nitride
- Axes Travel
- X*Y*Z: 3000mm*2000mm*1000mm
- Dimensional tolerance
- Generally ±0.1 mm to ±0.05 mm, our accuracy can be as high as ±0.005mm
Above is a list of the common processing parameters for CNC custom projects. If you require a custom service, please contact brighty@bestprocnc.com.
Milling Process Industry Application Overview
| Industry | Part | Material | Key Feature |
|---|---|---|---|
| Automation | Mounting plate | AL6061 | Flatness ±0.01mm |
| Communication | Heat sink base | AL6063-T5 | Thermal optimization |
| Robotics | Arm bracket | 7075 Aluminum | Light weight |
Want to see how our milling service applies to different industries? Check small batch examples →
Quality Assurance & Quality Control
Our integrated quality assurance (QA) and quality control (QC) systems ensure the highest production standards. ISO standard certifications uphold our quality management system, while the QC team conducts detailed inspections using advanced, calibrated equipment like CMM, VMS, calipers, hardness testers, etc… This dual approach “focused on prevention and precise inspection” ensures all parts meet stringent specifications and customer requirements, maintaining top precision, performance, and reliability.
Our Maximum capabilities for CNC Milling
3-axis and 3+2-axis CNC Milling
3-axis and 3+2-axis CNC milling machines provide an economical solution for producing parts with simpler geometries. These systems offer a low cost of entry as compared to other machining processes, making them ideal choices where affordability is critical.
| Size | Metric units | Imperial units |
|---|---|---|
| Max. part size for soft metals & plastics | 2000 x 1500 x 200 mm 1500 x 800 x 500 mm | 78.7 x 59.0 x 7.8 inch 59.0 x 31.4 x 27.5 inch |
| Max. part for hard metals | 1200 x 800 x 500 mm | 47.2 x 31.4 x 19.6 inch |
| Min. feature size | Ø 0.50 mm | Ø 0.019 inch |
5-axis CNC milling
5-axis CNC milling centers can deliver superior quality parts while markedly increasing efficiency. With fewer setups required, they offer a cost-effective solution for achieving complex geometries quickly and accurately.
| Size | Metric units | Imperial units |
|---|---|---|
| Max. part size for all materials | 650 x 650 x 300 mm | 25.5 x 25.5 x 11.8 inch |
| Min. feature size | Ø 0.50 mm | Ø 0.019 inch |
CNC Milling General Tolerances
BestPro provides a variety of CNC machining tolerances tailored to your specific design needs, including GD&T callouts. Depending on your part’s geometry and selected material, we accommodate standard and custom thread sizes, achieving tolerances up to ±0.005mm. Our default CNC milling tolerances for metals follow ISO 2768-m, while for plastics, we adhere to ISO 2768-c.
| Type | Tolerance |
|---|---|
| Linear Dimension | +/- 0.025 mm +/- 0.001 inch |
| Hole Diameters (not reamed) | +/- 0.025 mm +/- 0.001 inch |
| Shaft Diameters | +/- 0.025 mm +/- 0.001 inch |
| Part Size Limit | 950 * 550 * 480 mm 37.0 * 21.5 * 18.5 inch |
View Our Custom Projects
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- Comprehensive CNC Machining Materials Guide
- CNC Machining for Engineering Plastics
Contact BesPro for all things Milling Custom!
Please request a quote, contact us, or email brighty@bestprocnc.com for additional information about our services.
