Online CNC Machining Service
Fast turnaround on high-quality CNC parts starts with Unionfab’s online service.
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Why Choose Unionfab for Your CNC Machining Projects?
Unionfab’s Machining Capabilities
Leveraging over 400 CNC machines across our six strategically located facilities, Unionfab offers a comprehensive suite of machining solutions. We excel at crafting high-precision parts, handling both small-batch orders and high-volume production runs. Our dedicated team manages a robust supply chain, ensuring we have the resources to meet the diverse needs of various industries.
Superior Flexibility & Speed
From rapid prototyping to full-scale production, our 3, 4, and 5-axis machining capabilities empower you to bring your ideas to life quickly and efficiently. We offer competitive pricing and lead times through our user-friendly Instant Quote system. Simply upload your CAD files or technical drawings for a fast and accurate quote on various metals and plastics.
Industry-Leading Cost Savings
Our CNC Milling service is 50% lower than that of European and American competitors. This translates to significant savings on your high-precision parts without compromising on quality.
Quality You Can Trust
Our ISO 9001:2015, ISO 13485, and AS9100D certified quality management system guarantees parts that meet your exact specifications.
What is CNC Machining?
CNC machining, or Computer Numerical Control machining, is a subtractive manufacturing process widely used across various industries. It excels at creating high-precision and complex parts from a solid block of material, ideal for applications requiring high accuracy, such as aerospace components, medical devices, and intricate molds.
CNC programs guarantee consistent part production across batches. This minimizes human error and ensures every component meets your exact specifications, crucial for high-volume manufacturing and maintaining quality control.
CNC machines can handle a wide range of materials, from traditional metals like aluminum, steel, and titanium to engineering plastics, composites, and even wood. This allows you to select the material that best suits your project's needs in terms of strength, weight, and functionality.
Unionfab CNC Machining Options: Milling, Turning and More
CNC Milling Services
Fast, Precise Prototypes & Parts | ISO-Certified Quality | Instant Quotes in Minutes
View Our Custom Milling Services
CNC Turning Services
High-accuracy & Fast Turnaround | ISO-Certified Quality | Instant Quotes in Minutes
View Our Custom Turning Services
One-Stop Shop for CNC Machining
We Machine It All: Routing, Grinding, Drilling, EDM, Wire EDM & Multi-Axis CNC | ISO-Certified Quality | Instant Quotes in Minutes
Contact Sales for Specific NeedsUnionfab CNC Machining Tolerance Considerations
| Feature | Standard | Advanced Option | Notes |
|---|---|---|---|
Tolerance | ±0.005" (±0.127mm) | ±0.0005" (±0.0127mm) | Tolerances will be held to +/-.005"(+/-.127mm) in accordance with ISO 2768 unless otherwise specified. |
Surface Roughness (Ra) | 125uin (3.2μm) | Up to 16uin (0.4μm) | Surface roughness will be held to 125uin/3.2um Ra unless otherwise specified. |
Lead Time | 7-12 days | Contact us for advanced options. | Get an instant quoteto see the lead time. |
Accepted File Formats | 3D: STEP, STP, IGS 2D drawings: DWG, DXF, PDF | Contact us for specifics. | Delivery time may be 2-3 days longer if only 2D drawings are provided. |
Machining Techniques | Milling, Turning, Routing, Drilling, Grinding, EDM, Wire EDM | 3 aixs, 4 axis, 5 axis machining | Wide range of capabilities, inquire for specifics. |
Inspection | Standard Report (Free) | CMM Inspection or Third Party Inspection (Fee Required) | Free standard report, additional options available. |
Unionfab CNC Material Options
Unionfab CNC Machining Finishes
Unionfab CNC Machining Design Guidelines
| Feature | Recommendation | Reason |
|---|---|---|
Tolerances | Use tight tolerances only when necessary | Engineers often specify stricter tolerances than necessary. Stricter tolerances increase machining time and cost. |
Text | Avoid small or raised text | Adding text increases costs, especially if it's small. Opting for recessed rather than raised text. |
Walls | Avoid tall and thin walls | Thin walls are prone to breaking and warping. Use 3:1 width-to-height ratio and add draft angles. |
Internal Corners | Minimize sharp corners, use radii | CNC tools are cylindrical, so radii ensure proper machining. Make sure radius size > tool diameter. |
Tool Sizes | Design with standard tool sizes | Custom tools are expensive and increase lead time. |
Feature Alignment | Maximize alignment with machine axes | Features aligned with X, Y, Z axes require fewer tool changes and setups, reducing cost. |
Unionfab CNC Machining FAQs
CNC Machining: Pros and Cons
CNC Machining Applications
Automotive Industry
From high-performance engine components like pistons and valves crafted from lightweight yet robust materials, to intricate transmission parts, CNC machining delivers exceptional precision and repeatability..
Electronics
From intricate heat sinks for cooling to precise connectors and circuit board prototypes, CNC machining empowers miniaturization, functionality, and performance in electronics.
Robotics
CNC machining enables the creation of lightweight yet strong robotic arms, grippers, and high-precision components, driving the development of next-generation robots.
