Precision CNC Machining Manufacturer in China
Copper CNC Machining
Precision CNC machining for custom copper parts with tight tolerances, excellent surface finish, and reliable electrical and thermal conductivity for the most demanding applications.
Custom Copper CNC Machining
YD Rapid manufactures custom copper parts for prototypes and production runs. Our 3-, 4-, and 5-axis CNC machining capabilities support tight tolerances, complex features, and consistent part quality.
We machine copper components such as electrical contacts, heat sinks, connectors, and RF parts to meet demanding electrical and thermal performance requirements.
Copper Grades for CNC Machining
| Grade | UNS | Electrical Conductivity (% IACS) | Thermal Conductivity (W/m·K) | Machinability | Key Properties | Common Applications |
|---|---|---|---|---|---|---|
| C101 | C10100 | 101 | 401 | Excellent | High conductivity and excellent formability | Electrical busbars, connectors and switchgear |
| C110 | C11000 | 101 | 391 | Excellent | High conductivity and good corrosion resistance | Electrical components and heat exchangers |
| C145 | C14500 | 97 | 380 | Very Good | Tellurium copper with improved machinability | Precision connectors, terminals and RF components |
| C172 | C17200 | 58 | 320 | Good | Beryllium copper with high strength | Springs, contacts and high-stress components |
Copper CNC Machining Capabilities
From simple prototypes to complex production parts, our CNC milling, turning, and 5-axis machining capabilities deliver tight tolerances, consistent accuracy, and high-quality finishes for custom copper components.
Copper CNC Milling
High-precision milling for complex copper parts with excellent dimensional accuracy and surface finish.
Copper CNC Turning
CNC turning for copper components with tight tolerances, excellent roundness, and consistent concentricity.
5-Axis Copper Machining
5-axis machining for intricate copper parts with complex contours and undercut features.
Copper Prototyping
Rapid copper prototyping with short lead times to validate designs before full-scale production.
Quality Control for Copper Machined Parts
We inspect copper machined parts throughout production to verify critical dimensions, tolerances, material grade, and surface quality. Calibrated measuring equipment is used to check dimensional and geometric features, while material certificates confirm the specified copper grade and composition. Each part is also visually inspected for burrs, scratches, oxidation, machining marks, and other surface defects. Inspection records and material certificates are available upon request.
Machined Copper Parts Display
Copper Busbar
Copper Heat Sink
Copper Threaded Fitting
Copper Electrode
Copper Electrical Contact
Complex Copper Housing
Frequently Asked Questions
What copper grades can you CNC machine?
We commonly machine C101, C110, C145 tellurium copper, and C172 beryllium copper. Material selection depends on conductivity, strength, machinability, and application requirements.
What tolerances can you achieve on copper parts?
Typical tolerances are ±0.01 mm, depending on the part size, geometry, copper grade, and feature requirements. Tighter tolerances can be reviewed based on your drawings.
Why is copper difficult to CNC machine?
Pure copper is soft and ductile, which can cause built-up edges, burrs, and poor chip control. Proper tooling, cutting parameters, and coolant help maintain dimensional accuracy and surface quality.
Can you machine both copper prototypes and production parts?
Yes. We manufacture one-off prototypes, low-volume batches, and repeat production orders using CNC milling, turning, and 5-axis machining.
What finishes are available for CNC-machined copper parts?
Available options include as-machined, polishing, brushing, bead blasting, nickel plating, tin plating, silver plating, and passivation. Finish availability depends on the copper grade and part requirements.
What information is required for a copper machining quote?
Please provide a 3D CAD file, 2D drawing, copper grade, quantity, tolerances, surface finish, and any inspection or certification requirements.
Get a Quote for Custom Copper Parts
Send us your CAD files and drawings for review. We will evaluate the copper grade, tolerances, surface finish, and order quantity, then provide a detailed quote.
- Multiple Copper Grades
- DFM Review Included
- Quote Within 24 Hours