Material Selection
Choose aluminum alloys such as 6063 and 6061 based on thermal conductivity, mechanical strength, extrusion feasibility, and project requirements.

KINGKA is a manufacturer of extruded aluminum heat sinks, providing standard and custom aluminum extrusion profiles for a wide range of thermal management applications. Our extrusion heat sink solutions are designed for both natural convection and forced-air cooling, helping electronic components maintain stable operating temperatures.
Our product range includes compact aluminum heatsinks for electronic components, standard straight-fin profiles, and large extruded heat sinks for high-power devices such as IGBTs and industrial power modules. Depending on the design, available extrusion profiles can reach widths of up to 900 mm, offering flexibility for different cooling and installation requirements.
KINGKA also provides modular heat sink profiles with fin heights ranging from 5 mm to 60 mm and widths from 40 mm to over 400 mm. For applications requiring specific dimensions, mounting structures, or thermal performance, we offer customized aluminum heat sink extrusion solutions based on customer drawings and technical specifications.
In addition to air-cooled extruded aluminum heatsinks, KINGKA manufactures liquid cooling solutions for applications where conventional air cooling may not meet thermal requirements. These include customized liquid cold plates with machined cooling channels and other application-specific designs.
KINGKA extruded aluminum heat sinks combine efficient thermal performance, flexible profile design, and reliable manufacturing quality. Our aluminum heat sink extrusion solutions are suitable for a wide range of electronic and industrial cooling applications.
Our extruded aluminum heatsinks feature integrated fin structures that increase the surface area available for heat transfer. Designed for natural or forced convection, these profiles help dissipate heat from electronic components in different operating environments.
KINGKA offers a variety of aluminum heat sink extrusion profiles, from compact designs for small electronic components to larger profiles for industrial power equipment. Different fin heights, widths, and configurations are available to accommodate diverse thermal management requirements.
Manufactured from suitable aluminum alloys, our extruded heat sinks combine good thermal conductivity with lightweight construction and corrosion resistance. Optional surface treatments, including anodizing, can further improve surface durability and environmental protection.
Extruded aluminum heat sinks can be adapted to different equipment layouts and mounting requirements. Secondary CNC machining enables precision cutting, drilling, tapping, and other features for integration into electronic assemblies.
KINGKA provides custom extrusion heat sink solutions for industrial and electronic cooling applications. Our extruded aluminum heatsinks can be manufactured with different materials, fin structures, dimensions, and surface finishes to meet specific thermal and mechanical requirements.
| Product Name | Extrusion Heat Sink |
|---|---|
| Material | Aluminum Alloy 6063 / 6061 |
| Manufacturing Process | Aluminum Heat Sink Extrusion |
| Heat Sink Type | Extruded Aluminum Heatsink |
| Fin Structure | Straight Fins, Custom Fin Height, Thickness and Spacing |
| Dimensions | Customized According to Drawings |
| Cooling Method | Natural Convection / Forced Air Cooling |
| Surface Treatment | Anodizing, Sandblasting, Custom Surface Finishing |
| Secondary Processing | CNC Milling, Drilling, Tapping, Precision Cutting |
| Customization | OEM / ODM, Custom Profiles and Mounting Holes |
| Applications | Power Electronics, LED Lighting, Telecommunications, Industrial Automation, Energy Systems |
Note: Specifications and manufacturing options depend on the final design and project requirements. Please contact KINGKA to confirm material availability, dimensional limits, tolerances, and custom options.
KINGKA provides custom extruded aluminum heatsink design and OEM manufacturing services for a wide range of thermal management applications. From aluminum heat sink extrusion and profile customization to precision CNC machining and surface finishing, we help customers develop heat sinks that meet specific thermal, mechanical, and installation requirements. Our engineering and manufacturing capabilities support both prototype development and volume production.
Choose aluminum alloys such as 6063 and 6061 based on thermal conductivity, mechanical strength, extrusion feasibility, and project requirements.
Customize fin height, thickness, spacing, base dimensions, and extrusion profiles for natural or forced convection cooling. Designs are reviewed for thermal performance and manufacturing feasibility.
Secondary machining services include CNC milling, drilling, tapping, precision cutting, and custom mounting features to meet assembly and dimensional requirements.
Available finishing processes include anodizing, sandblasting, polishing, and powder coating. Surface treatments can be selected according to corrosion resistance, appearance, and application needs.
Our engineering team supports drawing review, thermal design evaluation, 3D modeling, and design for manufacturability (DFM) to help optimize cooling performance and production efficiency.
From prototype development to batch manufacturing, KINGKA provides customized extrusion heat sink production with dimensional inspection, quality control, and manufacturing support.
KINGKA follows a structured development and manufacturing process to help customers turn technical requirements into finished extruded aluminum heat sinks.
Send us your 2D/3D drawings, dimensions, material requirements, cooling conditions, and estimated order quantity. Our team will review your project and provide manufacturing recommendations and a quotation.
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Find answers to common questions about extrusion heat sinks, aluminum heat sink extrusion, material selection, manufacturing processes, and custom extruded aluminum heatsink solutions.
An extrusion heat sink is a thermal management component manufactured by forcing heated aluminum through a specially designed die to form a continuous profile with integrated cooling fins. The fins increase the surface area available for heat dissipation, helping transfer heat from electronic components to the surrounding air. Extruded aluminum heatsinks are widely used in power electronics, LED lighting, telecommunications, industrial automation, and other applications requiring reliable thermal management.
Aluminum heat sink extrusion begins with selecting a suitable aluminum alloy and designing an extrusion die according to the required heat sink profile. Heated aluminum is then pushed through the die under high pressure to create a continuous profile with integrated fins. After cooling and cutting, the extruded heat sink may undergo CNC machining, drilling, tapping, and surface finishing. The finished components are inspected to verify dimensional accuracy and manufacturing quality before delivery.
The main difference is the manufacturing process and achievable fin geometry. An extruded heat sink is produced by forcing aluminum through a die, creating a continuous profile with integrated fins. A skived fin heat sink is manufactured by cutting and lifting thin fins directly from a solid metal base. Skived fin heat sinks can achieve thinner, more densely arranged fins in certain designs, while extrusion is often more economical for repeatable profiles and volume production. The best option depends on thermal performance requirements, airflow, dimensions, and manufacturing cost.
Aluminum 6063 is one of the most commonly used alloys for extruded heat sinks because of its good extrudability, thermal conductivity, corrosion resistance, and surface finishing characteristics. Aluminum 6061 may also be selected when greater mechanical strength is required. The most suitable alloy depends on the heat sink's thermal requirements, fin geometry, structural loads, and manufacturing conditions. KINGKA can evaluate material options based on customer drawings and application requirements.
Yes. Extruded aluminum heatsinks can be customized to meet specific thermal, mechanical, and installation requirements. KINGKA offers OEM customization options for aluminum materials, fin height, fin thickness, fin spacing, base dimensions, profile lengths, and mounting features. Additional processing options include CNC milling, drilling, tapping, and surface finishing. Customers can submit engineering drawings or design requirements for manufacturing feasibility review and quotation.
Extruded aluminum heat sinks offer several advantages, including good thermal conductivity, lightweight construction, corrosion resistance, and flexible profile design. The extrusion process produces integrated fins and supports consistent manufacturing of repeated cross-sectional shapes. It can also be cost-effective for suitable production volumes. With secondary CNC machining and surface treatment, extruded heat sinks can be adapted to different electronic cooling applications. Actual thermal performance depends on fin geometry, airflow, material selection, and operating conditions.
To request a custom extrusion heat sink quotation, customers should provide 2D or 3D engineering drawings, overall dimensions, preferred aluminum alloy, surface finishing requirements, critical tolerances, and estimated order quantity. Information about power dissipation, operating temperature, available installation space, and airflow conditions is also helpful when thermal design support is required. These details allow KINGKA to evaluate manufacturing feasibility and prepare a quotation based on the project's specifications.
Extrusion heat sinks are manufactured by pushing aluminum through a shaped die to produce continuous profiles, making them suitable for straight-fin designs and repeatable cross-sectional geometries. Die cast heat sinks are produced by injecting molten metal into a mold, allowing more complex three-dimensional shapes and integrated mechanical features. Extruded aluminum alloys may offer higher thermal conductivity than some common die casting alloys, but actual cooling performance depends on material, geometry, and airflow. The preferred manufacturing method depends on design complexity, production volume, and thermal requirements.

Kingka Tech Industrial Limited
We specialize in Heat Sink、Liquid Cold Plate、precision CNC machining and our products are widely used in telecommunication industry, aerospace, automotive, industrial control, power electronics, medical instruments, security electronics, LED lighting and multimedia consumption.
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Da Long New Village, Xie Gang Town, Dongguan City, Guangdong Province, China 523598
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