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We specialize in the research and development, production and technical services of high power cooling solutions. We are devoted to becoming the leader in the thermal management of new energy field. To provide our customers with better services and high-quality and reliable thermal management solutions and products

What Are Extruded Heat Sinks?

Extruded heat sinks are products manufactured through the extrusion process. This process involves applying external force to metal billets placed inside a container (extrusion cylinder), causing them to flow out through a specific die opening, thereby achieving the desired cross-sectional shape and dimensions. Typically, metals such as aluminum alloys are heated to a certain temperature and then extruded into specific heat sink structures, often featuring fins for enhanced thermal dissipation.

Our Extruded Heat Sinks

At Winshare Thermal, we take pride in our innovative and high-quality extruded heat sinks designed to meet the diverse cooling needs of various applications. Below is a showcase of some of our featured products

Extruded Heat Sink

Aluminum extruded heat sink is a heat dissipation product obtained by cutting, slotting, drilling and tapping, CNC and other processing on the basis of aluminum profile. Aluminum extruded heat sinks generally use AL6063 material, which has good thermal conductivity (160~180W/㎡·K) and relatively low cost. It can be used as a chassis, not only as a chassis structure but also as a heat dissipation component, or as a motherboard chip. Heat dissipation, stable performance, high-cost performance, suitable for mass production.

Extruded heat sink features

Extruded heat sink has the advantages of being lightweight, beautiful, and durable, having a high heat dissipation rate, good plasticity, etc. It has been widely used in computers, electronic power, LED, and so on. In China, heat sinks are also becoming more and more popular to use exreuded aluminum, and mainly aluminum extrusion molding, because the extrusion molding billet size consistency is good, the production cycle is short, and the cost is also relatively low. Aluminum heat sink has a beautiful appearance, is lightweight, has good heat dissipation performance, good energy-saving effect, and other characteristics. The surface of the processed aluminum heat sink is treated with anodic oxidation to increase the corrosion resistance, wear resistance, and beauty of the appearance of the aluminum.

extruded heat sink

The extruded materials we usually use are aluminum and copper. Aluminum is widely used in the production of heat dissipation equipment because of its lightweight beauty, good thermal conductivity, and ease of processing into complex shapes. There are three main types of aluminum radiator extrudeds: flat and wide, comb or spike, round or oval, and dendritic.

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Characteristics of the Extrusion Process

Efficient Forming

The extrusion process allows for rapid production of complex shapes, making it particularly suitable for creating heat sinks with elongated fins. Continuous extrusion facilitates efficient manufacturing, significantly enhancing production rates. Long profiles can be extruded in one go, minimizing subsequent assembly and machining steps, which reduces overall production costs.

Material Performance Optimization

The extrusion process refines the grain structure of the metal, increasing its strength and hardness. For heat sinks, this means achieving excellent thermal performance within a lightweight structure while ensuring durability. The tri-axial compressive stress state during extrusion enhances the plasticity of the metal, reducing internal defects and improving thermal conductivity and reliability.

High Dimensional Accuracy

The precision in designing and manufacturing extrusion dies ensures that the resulting heat sink profiles have accurate dimensions and shapes. This precision aids in easier installation and improves the contact tightness between the heat sink and heat-generating components, thus enhancing cooling efficiency. Strict control over extrusion parameters guarantees dimensional stability, minimizing performance degradation due to size variations.

Strong Adaptability

The extrusion process is compatible with various metals, such as aluminum and copper alloys, catering to diverse application requirements for heat sink materials. Different materials offer varying thermal conductivities and costs, allowing customization based on specific needs. Heat sinks can be tailored in various shapes and sizes to meet the cooling demands of different electronic products.

Extruded Aluminum Heat Sinks: Cost-Effective Solutions for Efficient Thermal Management

An extruded aluminum heat sink is one of the most popular and cost-efficient heat sink fabrication methods available today, primarily due to aluminum's excellent thermal conductivity, lightweight properties, and ease of fabrication. These heat sinks are highly cost-effective, allowing for mass production that reduces manufacturing costs while maintaining high quality. Their lightweight design makes them ideal for applications where weight is a concern, such as portable devices. Additionally, the extrusion process offers exceptional versatility, enabling the creation of customized shapes and sizes tailored to specific cooling requirements.

Applications of Extruded Heat Sinks

Information Technology

In the IT sector, extruded heat sinks are essential for cooling computer components such as CPUs and GPUs. They help maintain optimal operating temperatures, thereby enhancing performance and extending the lifespan of hardware in servers, workstations, and personal computers.

Automotive Industry

With the increasing integration of electronics in vehicles, extruded heat sinks are vital for cooling engine control units (ECUs) and power modules. They ensure reliable operation of automotive electronics, which is critical for performance and safety.

LED Lighting

Extruded heat sinks are commonly used in LED lighting applications to dissipate heat generated during operation. Efficient thermal management is crucial for maintaining the brightness and longevity of LED fixtures, making extruded aluminum heat sinks an ideal solution.

Industrial Machinery

In industrial settings, extruded heat sinks are employed to cool motors, generators, and power electronics. They help improve the efficiency and reliability of machinery by preventing overheating, which can lead to equipment failure and increased downtime.

Why Choose Winshare Thermal As Your Custom Extruded Heat Sinks Manufacturer?

Choosing Winshare Thermal as your custom extruded heat sink manufacturer ensures you partner with a leader in high-power cooling solutions. Founded in 2009, we are dedicated to providing reliable thermal management products tailored to your specific needs. Our collaboration with South China University of Technology has led to the establishment of a research and development base and graduate workstation, enhancing our capabilities in developing advanced heat conduction technologies.

Our extensive R&D facilities, including a dedicated heat transfer lab, allow us to innovate continuously and improve our product offerings. We are committed to quality, holding certifications such as ISO9001:2008, ISO14001:2004, and TS16949, which reflect our adherence to the highest manufacturing standards. With self-manufacturing capabilities for key thermal management components, we deliver customized solutions that optimize thermal performance for a variety of applications.