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High Temperature Heat Sink

High Temperature Heat Sink

  • High Thermal Endurance: Designed to operate reliably under continuous exposure to elevated temperatures without material degradation.
  • Superior Heat Conductivity: Made from 6061-T6 or 6063-T5 aluminum alloys, providing excellent thermal transfer properties under high-load conditions.
  • Reinforced Structural Stability: Maintains mechanical strength during thermal expansion and contraction cycles, ensuring long-term durability.
  • Optimized Fin Geometry: Customized fin spacing, thickness, and height enhance heat dissipation efficiency in both passive and forced convection systems.
  • Enhanced Emissivity Coatings: Surface treatments like black anodizing improve radiative cooling in high-temperature environments.
  • Adaptability Across Systems: Compatible with power modules, industrial inverters, battery packs, and other heat-intensive applications.
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    High Temperature Heat Sink Product

    Anodized High Temp Aluminum Heat Sink
    Anodized High Temp Aluminum Heat Sink
    Skived Fin Heat Sink High Temp
    Skived Fin Heat Sink High Temp
    High Heat Dissipation Aluminum Sink
    High Heat Dissipation Aluminum Sink
    6063 Aluminum Profile Heat Sink
    6063 Aluminum Profile Heat Sink
    Rectangular Aluminum Extrusion Sink
    Rectangular Aluminum Extrusion Sink
    High Temp Anodized Heat Sink
    High Temp Anodized Heat Sink
    Large Rectangular LED Heat Sink
    Large Rectangular LED Heat Sink
    6063 T5 Heat Sink Anodized Finish
    6063 T5 Heat Sink Anodized Finish

    Customization Capabilities

    We provide high-temperature heat sink solutions tailored for your specific thermal load, environmental conditions, and installation requirements.

    • Material: 6061-T6 or 6063-T5 aluminum alloy; optional copper or composite integration
    • Fin Design: Straight-fin, pin-fin, bonded-fin, or skived-fin structures
    • Surface Finish: Black anodizing, natural anodizing, or custom coatings for high emissivity
    • Base Thickness: Reinforced base options for high-heat and structural support
    • Thermal Resistance: Custom design to meet required °C/W values under extreme conditions
    • Operating Range: Suitable for use in environments above 100 degrees Celsius
    • Machining Options: CNC milling, drilling, and slotting available for mounting and integration
    • Production Flexibility: From prototype development to large-scale industrial orders

    Got a design, sketch, or idea? Share it with us for fast feedback

    Contact us

    Why Partner with Sinoextrud for Your High Temperature Heat Sink Needs?

    We are more than just an aluminum profile supplier — we’re your efficient, reliable, long-term partner.
    With Us, You Get:Faster turnaround,Stable quality,Competitive pricing,End-to-end support.

    Large-Scale Manufacturing:Our factory spans 1,000 mu (about 667,000 m²), with full in-house capabilities from aluminum smelting and billet casting to extrusion, surface treatment, and CNC machining.

    One-Stop Solution:With 43 extrusion lines (500–5500 tons) and a dedicated mold partner, we provide fast production, custom profiles, and integrated services to simplify your supply chain.

    Quality You Can Trust:Strict quality control ensures consistent dimensions, strength, and finish, reducing your risk and increasing reliability.

    Fast Delivery & Cost Efficiency:Self-produced billets, in-house processing, and batch production mean faster lead times and lower overall costs.

    Advanced Finishing Options:Anodizing and both vertical and horizontal powder coating lines deliver durable, high-quality surface finishes tailored to your product needs.

    Factory Overview
    Furnace workshop
    Aluminum bar production
    Mold Warehouse
    500-5500 Tons Extruder
    Spraying workshop
    Anodizing workshop
    Deep Processing Workshop
    CNC Machining Workshop
    Finished goods warehouse
    Finished goods warehouse
    Finished goods warehouse
    Export warehouse
    5500 Ton Extrusion Press
    Aluminum extrusion press
    Large Aluminum Extrusion Line
    Aluminum extrusion production line
    Extrusion workshop
    IATF 16949 Certification
    TUV
    Finished goods warehouse
    Export warehouse

    -Standard Packing Option-

    * Long bar length profiles 3.0-6.0 meters*
    Protective Film
    Shrink Sleeve
    Brown Paper
    Craft Paper
    * Short bar length profiles 0.3-3.0 meters*
    EPE Foam
    Poly Bag
    Wooden Crate
    Wooden Case

    -Loading & Shipment-

    Pallet Loading
    Bulk Loading
    LCL Loading
    Expedited Express

    STEPS

    How to work with us

    Start A Project today
    • Quote & Estimation

      Begin with a thorough evaluation of the design's feasibility, followed by a prompt, detailed estimate.

    • Sample & Test

      Creating a prototype to assess dimensions and ensure the mold's precision aligns with the requirements.

    • Extrude & Finish

      Producing the aluminum profile with pinpoint accuracy to the given specifications and applying desired finishes.

    • Pack & Deliver

      Tailored packaging for the extruded profiles, ensuring safe and efficient loading for prompt delivery.

    High Temperature Heat Sink-FAQ's

    What materials are best for high-temperature heat sinks?
    We recommend 6061-T6 aluminum for its excellent thermal conductivity and mechanical strength under heat.
    Can your heat sinks handle over 100 degrees Celsius?
    Yes. Our designs are engineered to perform reliably in temperatures exceeding 100 degrees Celsius.
    Are custom coatings available for high-temperature environments?
    Yes. We offer anodizing and special surface finishes that increase thermal emissivity and corrosion resistance.
    Can the design be reinforced for thermal expansion?
    Absolutely. We can increase base thickness and structural support to reduce thermal deformation.
    Do you support machining for mounting features?
    Yes. All heat sinks can be custom machined with holes, slots, and rails to fit your assembly.
    What’s the typical lead time?
    Lead time ranges from 10-15 working days depending on order size and complexity.
    What industries use high-temperature heat sinks?
    These products are widely used in energy systems, automotive electronics, industrial power modules, and LED lighting in enclosed or high-heat conditions.

    Products You May Looking for

    Still have questions? Contact us — we’ll reply within 12 hours.

    Contact us

    Sinoextrud: Your High Temperature Heat Sink Manufacturer

    Our high-temperature heat sinks are designed to provide consistent thermal management performance in environments with elevated operating temperatures. Using high-grade aluminum alloys, these solutions offer both high thermal conductivity and structural stability.


    The products feature reinforced designs and customizable fin structures to maximize convection and radiation efficiency. Black anodizing and other emissive surface treatments further enhance their effectiveness under extreme conditions.


    Whether your application involves continuous heat exposure, rapid thermal cycling, or enclosed system heat buildup, our heat sinks are tailored to perform under pressure. We support both passive and active cooling configurations.


    With scalable manufacturing capabilities and precision machining, we deliver high-temperature solutions that meet strict industrial requirements in automotive, energy, telecom, and automation sectors.


    Choose our high-temperature heat sinks for reliable performance, long service life, and application-specific thermal design.


    High Temperature Heat Sink : The Ultimate FAQ Guide

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