Services
CNC Machining
Die Casting
Sheet Metal
Prototyping
Injection Molding
Architecture&Decorative
Industries
Gift & Craft
New Energy
Industrial Equipment
Electrical
Automotive
Hardware
Resources
New
Blog
FAQ
Download
Custom CNC Machining Aluminum Cooling Plates from China Suppliers - Precision Engineered Factory Solutions for High-Heat Electronics
What is CNC Machining Aluminum Alloy Liquid Cooling Plate?
A CNC Machining Aluminum Alloy Liquid Cooling Plate is a high-performance thermal management solution made by CNC-milling intricate internal fluid channels into lightweight, thermally conductive aluminum plates. This precise machining process allows for custom channel geometries and ultra-flat contact surfaces, ensuring optimal heat transfer from high-power electronic components to the circulating coolant.
After milling, the plates are sealed using technologies like friction stir welding (FSW) or vacuum brazing and undergo strict leak testing to guarantee reliability. Because of their excellent thermal efficiency, structural strength, and flexible design, these cold plates are widely used in demanding applications such as EV battery systems, AI data center servers, and industrial power electronics.
What We Can Do?
| Core Services | |
| CNC Machining Service | Specializes in Liquid Cooling Plate, using 6061-T6 aluminum. Anodizing (common: 4-16μm, colors: black, silver, etc.; hard: 25-40μm, mostly black). Applications: Aerospace, medical devices, communication, and electronics. |
| CNC Milling Service | 3-axis, 4-axis, and 5-axis milling for complex structures. |
| Lathe Turning Service | Produces brass fittings, screws, shafts, clevis pins, and detent pins. |
| Mechanical Assembly | Quick-release pins, universal joints, spring-loaded plungers, guitar bridges, and stainless-steel buckles for packaging machinery. |
| Materials | |
| Aluminum | 6061-T6, 7075, 5052, A380 (die-cast), ADC12 (die-cast). |
| Copper Alloys | Brass, bronze, copper, phosphorous copper, beryllium copper. |
| Stainless Steel | 303, 304, 316, 17-4. |
| Plastics | ABS, PP, PE, Delrin, Nylon, Teflon |
| Surface Finishing | |
| Aluminum | Anodizing (with optional sand blasting), Alodine. |
| Steel | Passivation, polishing, black oxide, zinc plating (black/yellow/white) |
| Brass | Gold/silver/nickel plating, chrome plating, tin plating (matt/clear). |
| Others | Knurling (diamond/straight). |
| Quality Control | |
| Machine | Surface Roughness Tester, 3D Laser Scanner, CMM, Digital, Micrometer |
Why Choose us?
25+ Years of Industry Expertise:
25+ years of excellence in Aluminum Cooling Plate manufacturing and exporting precision aluminum parts worldwide.
Custom OEM/ODM Thermal Solutions:
Specializing in custom aluminum heatsinks and cold plates tailored to your precise specifications.
Rigorous Quality Control & Testing:
ISO-certified manufacturing delivering superior thermal dissipation and 100% leak-tested reliability.
End-to-End One-Stop Service:
Complete turnkey solutions from engineering design and rapid prototyping to global.
9 Quality Inspection Processes
Produced to high industry standards, delivering Precision CNC turning Parts with a pass rate of up to 99%.
DFM Analysis
Dimensional Tolerance
First Part Inspection
Machining
FQC detection
Material Report
Surface Treatment
Package
Summary of Issues
Frequently Asked Questions
What aluminum alloys are best for liquid cooling plates?
Aluminum 6061-T6 is the most widely used alloy due to its excellent thermal conductivity, structural strength, easy machinability, and compatibility with welding technologies like Friction Stir Welding (FSW).
How do you ensure the cooling plates do not leak?
We perform 100% rigorous leak testing on all finished plates. This includes helium mass spectrometry leak detection, pressure decay testing, and hydrostatic testing to guarantee complete weld and joint integrity.
What sealing methods are used to close the internal fluid channels?
Depending on the design requirements, we utilize Friction Stir Welding (FSW), vacuum brazing, or high-performance O-ring mechanical seals to seal the internal channels securely.
Can you customize internal channel geometries?
Yes. Our multi-axis CNC milling centers can machine highly complex, custom internal fluid paths, micro-channels, and fin structures to maximize surface area and optimize heat transfer performance.
What surface treatments do you offer for liquid cooling plates?
We offer clear or color anodizing, hard anodizing for wear resistance, and chromate conversion coatings (such as Alodine) to provide superior corrosion protection without compromising thermal conductivity.
Inquire Now!
For more information on our machining services, upload your drawings and contact details. We'll answer your questions and provide an instant quote.
Obtain Information
If you have any needs, please feel free to contact me and I will be happy to serve you.