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Precision Cold Plate Machining | Custom Flow Channel & FSW Cold Plates

Trusted OEM supplier for custom liquid cold plates. High-precision CNC milling, tight tolerances (0.05mm flatness), and leak-proof joint design for aerospace, EV, and medical electronics. Request DFM feedback!

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Precision CNC Machining Solutions for Custom Liquid Cold Plates
In liquid cold plate manufacturing, leak-proof channel sealing, ultra-flat thermal contact surfaces, and stringent leak-prevention standards are vital. As a custom precision CNC machining manufacturer, we utilize advanced machining capabilities and strict quality control to deliver high-reliability, maximum-efficiency custom cold plate machining services to global clients.
Target Industries & Applications
  • New Energy Vehicles & Power Batteries: Battery pack cooling plates, Motor Control Unit (MCU) heat sinks, and high-power fast-charging station cooling modules.
  • Data Centers & High-Performance Computing: CPU/GPU liquid cooling plates for AI servers and high-density rack liquid cooling systems.
  • Power Electronics & Photovoltaic Inverters: IGBT heat sink modules, high-voltage frequency converters, and energy storage liquid cooling kits.
  • Industrial & Medical Equipment: High-power laser transmitter heat sinks and MRI cooling components.
  • Aerospace & Defense Electronics: Airborne radar heat sink substrates and high-reliability phased-array liquid cooling systems.
Processable Materials
To satisfy requirements for high thermal conductivity, corrosion resistance, and lightweight design, we process a wide range of standard and specialized materials:
  • Aluminum Alloys (Cost-effective & Lightweight):
    • 6061 / 6063: Excellent mechanical properties, high machinability, and superior weldability; the preferred choice for cold plates.
    • 1060 / 3003: Pure aluminum/aluminum-manganese alloys with ultra-high thermal conductivity, ideal for extreme heat transfer requirements.
  • Copper & Copper Alloys (Maximum Thermal Conductivity):
    • C1100 / C1020 (Oxygen-Free Copper): Thermal conductivity exceeding $380\text{ W/(m·K)}$, widely used in heat sinks and microchannels for localized high-heat flux areas.
  • Stainless Steel & Clad Materials (High Corrosion Resistance & Harsh Environments):
    • SUS304 / SUS316L: Suitable for liquid cooling channels, fittings, and connectors operating under corrosive media or high pressure.
    • Copper-Aluminum Clad (Cu-Al Clad): Combines the high thermal conductivity of copper with the lightweight and cost advantages of aluminum.
Core Machining Processes & Technical Capabilities
To meet the demands of complex internal flow channels and high-sealing requirements, we offer a comprehensive precision machining process chain:
  • Precision CNC Machining (Channels & Sealing Surfaces):
    • High-Precision CNC Milling: High-speed, high-precision milling for complex serpentine channels, pin-fin arrays, and micro-channels with surface roughness down to $\text{Ra } 0.8\,\mu\text{m}$.
    • Ultra-High Flatness Control: Specialized fixtures and stress-relief techniques ensure large-area cold plates maintain flatness within $0.05\,\text{mm}$, guaranteeing seamless contact with chips or IGBTs.
  • Joint Preparation for Advanced Welding:
    • Precision machining of stepped grooves and butt joints specifically engineered for Friction Stir Welding (FSW), Vacuum Brazing, and Laser Welding to ensure pore-free, leak-proof seals.
  • Precision Threading & Port Machining:
    • High-precision turning and milling for NPT, G-threads, SAE quick-disconnect ports, and custom fluid connectors to ensure perfect sealing.
  • Surface Treatments:
    • One-stop surface finishing services including aluminum anodizing (hard/conductive), copper nickel/silver plating (anti-oxidation), and Electroless Nickel Plating (ENP).
Why Choose Us?
  • Flexible Production: Full support from prototype R&D and low-volume trials to high-volume production without rigid MOQ restrictions.
  • Strict Quality & Testing: Full geometric tolerance verification via CMM, with pre-test compatibility for air-tightness and pressure testing prior to shipment.
  • Engineering Support: Direct Design for Manufacturability (DFM) feedback based on your drawings to optimize machining costs and minimize leak risks.