Aluminum Extrusion CNC machined heat sink

Product information:

1. Offer OEM/ODM services for heat sinks,

2.Materials:Aluminum

3.Surface treatment: non, can do according to customer’s requests.

4. Inspection machines: CMM, 2.5D projector to assure the quality requirements. Compliant with RoHS Directive.

5. Edges and holes deburred, surfaces free of scratches.

6. We accept any OEM orders and can accept small orders for test quality.


Product Detail

Product Tags

Other information:

MOQ: ≥1 piece or according to customer’s request

Payment: can be negotiated

Delivery Time: 2-3weeks

FOB Port: can be negotiated

Quality Control: 100% inspected

How to produce your heat sink or radiator?

In the world of thermal management, heat sinks play a vital role in dissipating excess heat and ensuring optimal performance of electronic devices. With advances in technology and the constant need for more power, radiators have evolved to employ different production methods, resulting in a wide variety of radiator types.

1.Aluminum extrusion heat sink/ radiator

One of the most common radiator types is the aluminum extrusion radiator. These heat sinks feature a fin and channel design that effectively maximizes surface area for efficient heat dissipation. Aluminum extrusions provide design flexibility, allowing complex shapes and sizes to meet specific cooling requirements.  CNC machining further refines these heat sinks with precise cuts and contours to enhance their thermal performance. These are for high power devices packaged in dustry standard semiconductor case styles, power modules, SCRS IGBTs, IO devices and other flat base devices in both natural and forced convection.

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2.Bonded Fin heat sink, Skiving Fin heat sink

Bonded fin radiators and turned fin radiators are also widely used due to their superior heat dissipation capabilities. Bonded fin heat sinks are formed by gluing individual fins to a base plate, ensuring maximum contact between the heat sink and heat source. Turned fin radiators, on the other hand, are formed by cutting thin fins from a solid sheet of aluminum, which increases surface area and improves cooling efficiency. These are for high power and components with high-density packaged applications, even in harsh shock and vibrated environments.

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3.Friction stir welding(FSW) heat sink

Another innovative production method in the radiator industry is friction stir welding (FSW) radiators.  FSW uses frictional heat and mechanical pressure to join aluminum alloys to form a seamless, lightweight heat sink with excellent electrical conductivity. This approach ensures optimal thermal performance while reducing material waste. These are for high power and components with high-density packaged applications, even in harsh shock and vibrated environments, such as Communication base station.

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4.Precision forging(press fit) heat sinks

Precision forged radiators are made through a specialized forging process that involves pressing and shaping hot aluminum billets using precision dies. The heat sink produced by this method has excellent thermal conductivity and mechanical strength. These are for high power and components with high density packaged applications, even in harsh shock and vibrated environments, such as solar energy system.

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5.Fin solder or heat-pipe solder heat sinks.

For applications where space is limited, fin welded or heat pipe welded heat sinks are ideal. These heat sinks utilize heat pipes or bonded fins to maximize heat transfer in a smaller footprint. For cooling single and multiple high power devices packaged in industry standard semiconductor case styles, and other isolated flat base devices in both natural and forced convection.

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6.Die casting heat sink

Finally, we have die-cast radiators, which are manufactured by pouring molten aluminum into a metal mold. This production method allows for complex shapes and designs, making it suitable for mass production. These are for high power and high density packaged applications, or complicated structure even in harsh shock and vibration environments, such as LED lighting.

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What’s your request? Tell me and we will help you find the best solution for your heat sink.


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