Precision CNC Machined Aluminum Liquid Cooling Plate Per Drawing in China
We specialize in the custom manufacturing of high-performance liquid cooling plates based on customer drawings and specifications. With advanced CNC machining, embedded tube, vacuum brazing and friction stir welding capabilities, we deliver reliable thermal management solutions for a wide range of industrial applications. From single prototype development to high-volume mass production, every cooling plate is manufactured with tight dimensional tolerance, excellent thermal conductivity and long-term sealing performance.
Our liquid cold plates are engineered to meet the most demanding thermal requirements of power electronics, medical devices, new energy systems and industrial automation equipment. We work directly with your engineering team to optimize flow channel design, material selection and production process, ensuring that each cooling plate achieves the target thermal resistance, pressure drop and structural strength. All products are manufactured strictly according to your 2D and 3D drawings, with full process control from raw material inspection to final quality testing.
Cooling Plate Manufacturing Technologies
We provide multiple fabrication processes to match different performance requirements, cost targets and application scenarios. Our engineering team will recommend the most suitable manufacturing method based on your cooling performance, pressure rating and volume demand.
Embedded Tube Cooling Plate
The embedded tube cooling plate is manufactured by pressing copper or aluminum tubes into precision-machined grooves on an aluminum base plate, followed by mechanical or epoxy bonding for optimal thermal interface. This process provides excellent sealing reliability and high pressure resistance, making it ideal for applications with high coolant flow rates and long service life requirements. The tube material and wall thickness can be customized to match different coolant types and working pressures.
We can produce embedded tube cold plates with complex serpentine, parallel and multi-pass flow paths, with tube diameters ranging from 4mm to 16mm. The press-fit process ensures full contact between the tube and the aluminum base, minimizing thermal resistance while maintaining the structural integrity of the base plate. Surface treatments such as anodizing, chromate conversion and nickel plating are available for corrosion protection.
Vacuum Brazed Cooling Plate
Vacuum brazed cooling plates are constructed by joining two or more aluminum components under high temperature and vacuum environment using brazing filler metal. This process creates a uniform, metallurgical bond across the entire contact area, resulting in very low thermal resistance and excellent leak-tightness. Vacuum brazing is the preferred process for high-density cooling applications with complex internal flow channels and high heat flux.
Our vacuum brazing process supports internal channel structures including pin fins, strip fins, microchannels and turbulent flow structures, enabling highly efficient heat transfer in a compact footprint. The brazed joint has consistent strength and corrosion resistance, and can withstand high working pressure and thermal cycling. We perform helium leak testing and pressure testing on every vacuum brazed cooling plate to ensure reliable performance.
FSW Friction Stir Welded Cooling Plate
Friction stir welding (FSW) is a solid-state joining process that produces high-strength, defect-free welds without melting the base material. FSW cooling plates feature excellent mechanical properties, minimal distortion and consistent weld quality, making them suitable for large-format, high-strength and high-reliability cooling applications. The weld zone maintains nearly the same mechanical and thermal properties as the base aluminum alloy.
Our FSW cooling plates are widely used in new energy vehicle battery cooling, energy storage systems and high-power industrial equipment. Compared with traditional fusion welding, friction stir welding eliminates porosity, cracking and residual stress issues, ensuring long-term reliability under vibration and thermal cycling conditions. We can weld aluminum alloys of various thicknesses and produce cooling plates with dimensions up to 2000mm in length.
Gun-drilled / CNC Machined Cooling Plate
Gun-drilled and CNC machined cooling plates are manufactured by drilling deep, precision flow channels directly into a solid aluminum block using deep hole drilling technology, followed by CNC milling, tapping and finishing operations. This monolithic construction eliminates welding or bonding interfaces, providing the highest level of structural integrity, leak resistance and thermal performance.
Our gun-drilling process can produce straight, cross and multi-layer flow channels with diameters from 3mm to 20mm and depth-to-diameter ratios up to 100:1. All internal channels are deburred and cleaned to ensure smooth flow and no contamination. This process is ideal for high-pressure, high-reliability applications such as aerospace, medical equipment and high-power semiconductor cooling, where any risk of leakage is unacceptable.
Related Cooling Plate Products
We manufacture a full range of custom liquid cooling plates for different industries and applications. Below are examples of our standard and custom cold plate configurations.
Common Materials for Liquid Cooling Plates
We offer a wide selection of thermal conductive materials to match your thermal performance, weight, corrosion resistance and cost requirements. All materials are sourced from certified suppliers with full material traceability.
Aluminum 6061-T6
The most widely used material for general-purpose liquid cooling plates, offering an excellent balance of thermal conductivity, mechanical strength, machinability and cost-effectiveness.
- Thermal conductivity: ~167 W/m·K
- Good corrosion resistance
- Excellent machinability and weldability
- Suitable for CNC, brazing and FSW processes
Aluminum 6063-T5
A high-thermal-conductivity aluminum alloy with excellent formability, commonly used for extruded cooling plates and applications requiring maximum heat transfer efficiency.
- Thermal conductivity: ~201 W/m·K
- Superior extrusion and forming properties
- Good surface finish for anodizing
- Ideal for high-volume extruded cold plates
Aluminum 5052-H32
A non-heat-treatable aluminum alloy with excellent corrosion resistance and moderate strength, suitable for outdoor, marine and humid environment cooling applications.
- Thermal conductivity: ~138 W/m·K
- Excellent resistance to saltwater and corrosion
- Good formability and weldability
- Cost-effective for stamped and formed plates
Aluminum 7075-T6
An ultra-high-strength aluminum alloy for applications requiring exceptional structural rigidity and lightweight performance, such as aerospace and automotive battery cooling.
- Thermal conductivity: ~130 W/m·K
- High tensile strength and fatigue resistance
- Excellent strength-to-weight ratio
- Suitable for high-load and vibration environments
Copper C11000
The highest thermal conductivity material for extreme heat flux applications, used in high-power laser, semiconductor and RF equipment where maximum heat dissipation is required.
- Thermal conductivity: ~401 W/m·K
- Excellent electrical conductivity
- Superior corrosion resistance to many coolants
- Available in pure copper and copper alloys
Stainless Steel 304 / 316
For applications involving corrosive coolants, high temperatures or strict hygiene requirements, such as chemical processing, medical equipment and food industry cooling systems.
- Excellent corrosion and oxidation resistance
- High temperature and pressure capability
- Biocompatible for medical applications
- Compatible with aggressive coolant fluids
Production Capabilities
We support the full product lifecycle from initial design validation to high-volume mass production, with flexible manufacturing systems and strict quality control at every stage.
Custom Manufacturing Per Drawing
Every cooling plate is manufactured strictly according to your provided drawings and specifications. We accept all common 2D and 3D file formats including DWG, DXF, STEP, IGES and SolidWorks files. Our engineering team will review your design for manufacturability, suggest process optimizations and provide detailed quotations with lead time. We can produce cooling plates with dimensions from 20mm x 20mm up to 2000mm x 1000mm, with machining tolerances as tight as ±0.01mm.
Prototyping & Low Volume Production
We offer fast prototype manufacturing services for design verification and functional testing, with lead times as short as 5-10 working days for simple designs. Our prototyping capability supports single-piece and low-volume orders from 1 to 100 pieces, allowing you to validate thermal performance, fit and function before committing to mass production. We maintain a large inventory of raw materials to support rapid turnaround for prototype and low-volume requirements.
Mass Production Capability
With multiple CNC machining centers, vacuum brazing furnaces, FSW machines and automated production lines, we can scale production from hundreds to tens of thousands of pieces per month while maintaining consistent quality. Our production planning system ensures stable delivery schedules, and our quality management system controls every process from incoming material inspection to final packaging. We work with customers to establish long-term supply agreements for ongoing production requirements.
In-House Full Process Manufacturing
All critical manufacturing processes are completed in-house, including raw material cutting, CNC milling and turning, deep hole gun drilling, vacuum brazing, friction stir welding, surface treatment, cleaning, pressure testing and quality inspection. This vertical integration gives us full control over quality, lead time and cost, and ensures complete traceability throughout the production process. We also offer secondary operations including tapping, thread forming, anodizing, powder coating and laser marking.
Machining & Inspection Facilities
We are equipped with advanced CNC machining equipment and precision inspection instruments to ensure that every cooling plate meets your dimensional accuracy and quality requirements.
Application Fields
Our custom liquid cooling plates serve a broad range of industries and applications where reliable thermal management is critical to equipment performance and lifespan.
Power Electronics
IGBT modules, frequency converters, UPS systems, power supplies, motor drives, wind power converters and energy storage systems.
Medical Equipment
Medical imaging devices, diagnostic equipment, laser systems, therapeutic instruments, laboratory equipment and dental devices.
New Energy
Electric vehicle battery packs, motor controllers, on-board chargers, photovoltaic inverters, hydrogen fuel cells and energy storage systems.
Industrial Automation
Servo drives, industrial robots, semiconductor manufacturing equipment, data center servers, welding equipment and machine tool cooling.
Start Your Custom Cooling Plate Project
Whether you need a single prototype for testing or a high-volume production supply, we have the engineering expertise and manufacturing capability to deliver high-quality liquid cooling plates that match your exact specifications. Simply send us your drawings and requirements, and our team will provide a detailed quotation and manufacturing solution tailored to your application.
We provide custom machined parts, 5-axis linkage CNC machining, and the design, production, and assembly of machinery and equipment.