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pin fin heat sink

Pin Fin Heat Sink

Heatell offers and manufactures pin fin heat sink for more than 20 years. Our Heatell pin fin heat sink is offered in the highest quality and widest range for your thermal management solutions.

We are your specialist manufacturer and importer of pin fin heat sink in China. Heatell pin heatsink can be customized. If you have your own design and layout, we can help you finalize the design for final production.

Heatell’s experienced technicians will help you with the whole fabrications as well as help you to decrease your initial costs.

Send us your project needs now!

Your Professional Pin Fin Heat Sink Manufacturer in China

Splayed Pin Heatsink

In China, Heatell is more than 8 years in providing high-quality pin fin heat sink worldwide.

Pin Fin Heat Sink

We offer a compact pin fin heat sink, constructed with a variety of specially arranged pin.

pin fin heat sink calculator

It is specifically designed to provide optimum air throughput.

pin fin heat sink

Item TypePin Fin Heat Sink
MaterialAluminum Alloy 6000 Series
Base ThicknessBased on your requirements.
Pin HeightBased on your requirements.
ShapesSquare, square, round, or customized
ApplicationLED Lighting, Inverter, Welding Machine, Communication Device, Power Supply Equipment, Electronic Industry, Thermoelectric Coolers/Generator, IGBT/UPS Cooling Systems, etc.
FinishAnodizing, Mill finish, Electroplating, Polishing, Sandblasted, Powder coating, Silver plating, Brushed, Painted, PVDF, etc.
Deep processCNC,drilling,milling,cutting,stamping,welding,bending,assembling,Custom Aluminum Fabrication
Packagingstandard export packaging or as discussed
Service1. Free sample, Free design;
2. OEM/ODM available;
3. Custom-made request;
4. New design solution suggestion
Delivery time15-20 days after sample confirmed & down payment, or negotiated
PortShanghai Port
Our Advantagesuperior quality with competitive price, Certified enterprises in China

Heatell owns an advanced production line, which imported from Taiwan to produce the highest quality pin fin heat sink.

Heat Sink supplier

There are many manufacturing procedures to produce sink pin including forging, CNC machining, cutting, fine surface treatment, etc.

Splayed Pin Heatsink

The material properties, geometry, and structure of the pin heat sink make them highly efficient in dissipating heat. For more information about Heatell pin fin heat sink, please get in touch with us!

heat sink profile testing

-Standard Packing Option-

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* Ocean Delivery*

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Heatell: Your Premier Pin Fin Heat Sink Supplier and Manufacturer in China

Heat sinks are the most famous devices for electronic cooling. If ever you need the highest quality heat sinks for your business or project, Heatell has the solutions.

Leading industry worldwide, Heatell is a well-known manufacturer and supplier of the excellent quality heat sink. Our heat sink products are utilizing different manufacturing processes. There’s Pin Fin Heat Sink in Heatell.

pin fin heat sink advantages

Heatell heat sink pin is manufactured with numerous pin densities, heights, thicknesses, and footprints. They are able to dissipate up to 185W in a volume decreasing 6.3 in.3 thanks to its small fan.

Representing an emerging technology, Heatell pin fin heat sink is manufactured to solve a problem of a complex thermal where spaces are limited and heat load is substantial.

Splayed Pin Heat sink

Out of the existing heat sink technologies, Heatell pin fin heat sink act to be an efficient cooling solution in a way that they have a large surface area to any heat sink volume.

You can find pin spacing and round pin in Heatell pin fin heat sink. As they are manufactured from high thermal conductive copper or aluminum alloys, Heatell pin heat sink creates high convective thermal ecoefficiency.

Additionally, our pin fin heat sink has higher volumetric efficiency. It makes them significantly lighter and smaller than their cooling ability. What’s more, Heatell pin fin heat sink is 2 to 10 times more efficient than extrusion heat sinks.

There’re no bonding agents in the pin fin heat sink, so various plating methods are available. This means that Heatell splayed pin heat sink can be anodized or oxidized, depending on its material used. They can withstand harsh environments in industrial or commercial.

All your heat sink needs are found in Heatell! Don’t hesitate to count on us, your one-stop-shop solution. Trust Heatell! Our highly professional engineers will help you purchase the best heat sink products.

Whether you`re a supplier or distributor, we can satisfy your requirements. Heatell provides 24/7 customer service.

Also, Heatell is willing to answer any questions you have at any level of the project. Contact us now!

Pin Fin Heat Sink: The Ultimate Guide

In this guide, you will find all information you are looking for about pin fin heat sink.

Whether you want to learn about the design, features, working principle, choice of material and fabrication techniques – you will find all the relevant information right here.

Let’s dive right in:

1.  What Is Pin Fin Heat Sink

It is a type of heat sink with a design construction that features pins extending from the base area.

The pins used in this type of heat sink vary in shape, such as elliptical, cylindrical or square.

It is regarded among the leading variants available in the market and is used in a wide range of thermal management applications in different equipment and devices.

Pin fin heat sink is considered innovation as far as heat sinks are concerned.

They are compact and fabricated, with quite several pins formed to offer a lot of air.

pin fin heat sink

pn fin heat sink

Furthermore, pin heat sink exhibits exceptional cooling capacity emanating from its unique and deliberate features and construction.

Hence, it works on the concept on the concept of packing as much surface area as it can into any specific volume.

In essence, it is one of the highly effective types of heat sinks offering high cooling ability performance in different devices and appliances.

2.  Benefits Of Pin Heat Sink

Ideally, this heat sink design comes in handy, especially in applications where cooling power is necessary for tight spaces.

Hence, using it in thermal management of different electrical and electronic components offers a broad range of advantages, such as the following;

  • Affordability – Producing this type of heat sink is cost-effective since it seems to have low tooling and unit price, particularly for mass production.
  • It is easy to customize the different dimensions of pin fin heat sink during manufacturing hence allowing you to get what suits your needs.
  • The pin fin heat sink geometries enhance efficiency in tight spaces while also providing the necessary cooling power.
  • It features more powerful fans, which increase airflow through a system, thus valuable for several applications.
  • Pin fin heat sink has a round, aerodynamic shape, which increases its efficiency by allowing more airflow to enter fin array.
  • The base materials used for making pin fin heat sinks guarantee a visually attractive final product in addition to exceptional mechanical and surface finishing qualities.
  • It provides low-pressure drop since it has a smooth pin shape.

This is advantageous because a low-pressure drop enhances heat transfer in the whole system, particularly the area behind heat sink.

  • Pin heat sink has low thermal resistance even at low airflow rates.

3.  Pin Fink Heat Sink Material

For the materials, remember to highlight the thermal/electrical properties

The material used in making this design of heat sink possesses exceptional thermal conductivity properties.

Of course, you can use different materials, but the most suitable one is dependent on the specific application.

Different components of an appliance or device require a pink heat sink with different materials.

For instance, chip area, power and cooling area of different components determine the specific material to use since they require different parameters.

pin fin heat sink

pin fin heat sink

Besides, other factors like potential for weight savings, coefficient of thermal expansion, and corrosion resistance are also vital in determining best material.

Nonetheless, here are the primary material often used in making pin fin heat sinks;


It possesses a high thermal conductivity level of around 170 and 220 W/mK depending on specific alloy and ensures a uniform and faster heat distribution at the pin’s base.

Aluminum pin fin heat sinks exhibit better performance since this material is relatively lightweight.

Moreover, it offers better and even heat dissipation compared to pin fin heat sinks made from other materials.

Aluminum rarely requires plating since it guarantees optimum corrosion resistance against coolants.

Hence, this material offers a cost-effective option for making pin fin heat sinks.

However, it is advisable always to assess carefully to determine whether the specific alloy is ideal for your preferred application.


It exhibits a higher thermal conductivity level than aluminum at about 400 W/mk.

This excellent thermal conductivity property makes copper material easily absorb power peaks.

Mostly, it comes with a thin metallic coating, which protects it effectively from corrosion.

It is most suitable material choice for relatively high-end applications like hybrid modules of vehicles among others.


This material combines copper and aluminum, which makes a highly effective hybrid compound.

It gives a lower weight and exceptional corrosion resistance against coolant without necessarily plating the surface material.

This material guarantees excellent heat distribution and relatively short time peak loads absorption.

4.  Fabricating Pin Fin Heat Sink

You can make pin fin heat sinks using a wide range of methods specifically based on the type of material you are using and desired shape.

The common fabricating techniques you can always use when manufacturing this type of heat sink include the following;

Impact Extruded Heat Sink

It is a sustainable and ideal process for manufacturing a wide range of pin fin heat sinks.

What makes this method quite cost-effective is the fact that it utilizes raw materials and resources efficiently.

Also, it offers high precision and better mechanical qualities such as hardness and tensile strength.

Furthermore, impact extrusion guarantees uniform pressure loss distribution in the fluid over pin height/heat sink.

Forging Heat Sink

It is a highly accurate technique commonly used for manufacturing round and elliptical pin fit heat sinks.

This process provides high degree of design freedom since it has a thermally improved material flow.

You can easily use it to form secondary mold elements and attain enhanced optimum heat dissipation based on component’s weight.

Moreover, forging is essential where production of high volume pin fit heat sinks is concerned.

It also guarantees pin fit heat sinks with excellent microstructure integrity.

Die Casting Heat Sink

This process comes in handy when making pin fin heat sinks with complex geometry.

However, it is recommendable when using a material with a lower thermal conductivity than those used in forging or extrusion.

Stamping Heat Sink

It is the best method for making relatively tall pin fin heat sinks that need heat pipes running through the fins.

Aluminum or copper makes the best materials to use for making these components utilising this technique.

Stamping is ideal for making large scale pin fin heat sinks.

Explore all different ways of manufacturing pin fin heat sink.

CNC Machining Heat Sink

This process is versatile and can produce pin fin heat sinks with utmost geometric complexity.

It is also suitable for manufacturing pin fin heat sinks required urgently since the process is effective, accurate and fast.

However, it is quite costly and requires a reasonable capital investment to attain desired results.

Skiving Heat Sink

It is an ideal technique for making unique pin fin heat sinks.

Ideally, it entails slicing the specific metal material you are using depending on the required pin fin heat sink profile.

But this process is often costly, thus a suitable choice in applications where cost is not necessarily a sensitive aspect.

5.  Factors Influencing Pin Heat Sink Efficiency

They are quite a number of aspects which determine the overall performance of a typical pin fin heat.

Of course, most of these factors vary based on different elements involved during design construction of the heat sink.

Nevertheless, here are the common elements you must figure out to establish the actual efficiency of this component;


Ordinarily, aluminum and copper are the primary material used for making highly effective pin fin heat sinks.

However, they have different alloys, which contain different features.

For instance, aluminum alloy 1050A possesses higher thermal conductivity of up to 229 W/mk, albeit being mechanically soft.

On the other hand, Aluminum alloys in the 6000 series have moderate thermal conductivity depending on the actual alloy temper.

Fin Arrangement

The pins in fin pin heat sink can be elliptical, square or round.

Hence, arrangements of such fins on the base, depending on the shape, have an immense influence on the general performance of the heat sink.

Thermal Resistance

Usually, the heat flow between ambient air and semiconductor die is designed as a series of resistances to heat flow.

It implies that resistance exists from the die to device case, from case to heat sink and from heat sink to ambient air.

Spreading Resistance

In a typical pin fin heat sink, it merely implies that the heat hardly distributes evenly through the heat sink base.

The phenomenon of spreading resistance is portrayed by how heat moves from the source to the location.

In essence, it causes an excellent temperature gradient between heat edges and the heat sink edges.

Fin Efficiency

Usually, a fin of a pin fin heat sink allows heat flowing in one end to be dissipated into the surrounding fluid as it moves to the other.

Combination of heat sink thermal resistance impeding the flow and heat lost due to convection decreases heat transfer from base to end of fin.

Surface Color

Radiative cooling is usually an imperative factor, particularly in situations where convection is relatively low.

As such, pin fin heat sinks with matte-black surfaces, tend to radiate more efficiently than shiny bare metal in visible spectrum.

Technically, a shiny surface finish has low effective emissivity due to its low surface area.


The overall efficiency of a pin fin heat sink is hugely determined by its size.

Larger units tend to be more efficient than smaller ones.

6.  Features Of Pin Fin Heat Sink

The core features of this type of heat sink include the following;

  • Compact size hence can easily fit in a wide range of electronic devices without necessarily increasing the weight or changing the design.
  • Design construction features lightweight materials to reduce thermal resistance from support to the fins.
  • Exceptionally efficient design construction minimizing pressure drop traits.
  • Easy to customize to your application demands and standards.
  • Large surface area essentially enhancing pin fin heat sink efficiency and performance
  • Highly affordable to purchase, especially in bulk, making it quite cost-effective when manufacturing your appliances and devices.

7.  How Pin Fin Heat Sink Works

The heat transfer principle in fin heat sink is quite a straightforward process.

Ideally, this type of heat sink has a thermal conductor, which carries heat away from the device into fins.

The fins provide a reasonably large surface area for heat dissipation throughout the entire device.

It is the heat dissipation that facilitates cooling of both the heat sink and device’s processor.

Essentially, pin fin heat sink works based on thermal conductivity principle.

Often, this happens when two objects of dissimilar temperatures come in contact with each other.

When heat sink meets the device’s processor, faster-moving molecules from heat sink crash into slower molecules of device, cooling the object.

Primarily, this is how a pin fin heat sink works, but its efficiency depends on various factors, including material and design construction aspects.

8.  Types Of Pin Fin Heat Sink

Pin fin heat sinks are available in different categories based on a wide range of factors, including airflow, material, manufacturing process and use of water.

Based on airflow, there is passive and active pin fin heat sinks.

Active pin fin heat sink has a powered device like a blower or fan closer to heat exchanger surface.

It relies on forced air to be passed across fin area hence more efficient.

Active pin heat sink

Active pin heat sink

Passive pin fin heat sinks, on the contrary, hardly rely on forced air flow and often regarded as more reliable than active solutions.

Based on material, this component is available in aluminum and copper pin fin heat sinks.

Ideally, these types are quite straightforward as the name implies the type of material used for making each.

Passive pin heat sink

passive pin heat sink

When it comes to manufacturing process, this heat sink is available in several types.

The common ones include the following; CNC machined pin fin heat sink etc.

In the use of water category, the common types of this heat sink are solid metal pin fin heat sink, pumped liquid pin fin heat sink and two-phase pin fin heat sink.

9.  Applications Of Pin Fin Heat Sink

You can use pin heat sink in a wide range of devices used in various applications.

Some common devices include the following;

  • Amplifiers
  • Control processing units
  • Motherboards
  • Power transistors
  • IC cooling
  • Relays
  • Automobile radiators
  • Transformers
  • Telecommunication equipment
  • Industrial components and equipment
  • Lighting lamps
  • Refrigerator condensers

10.  Pin Fin Heat Sink Vs Skived Fin Heat Sink

These two types of heat sinks are more or less same in different ways apart from the fin arrangement style.

Like a pin fin heat sink, skived heat sink provides an optimum heat dissipation in applications with high airflow and small space.

pin heat sink

pin heat sink

Both heat sinks do not have interface joints between fins and base and also require minimal tooling cost.

However, copper is mainly preferred material in making skived heat sink, unlike aluminum, which is preferred in pin fin heat sinks.

Skiving technology in pin fin enables heat sinks to have ultra-thin fins, high aspect ratio and high fin density.

skived fin heat sink

skived fin heat sink

11.  Surface Finish For Pin Fin Heat Sink

Several surface finish options for pin heat sinks are available depending on different manufacturers and specific application demands.

But the most preferred ones include the following;

  • Nickel plating – This surface finish has a yellowish-white appearance and provides excellent dimensional repeatability and solderability.
  • Powder coating – It is a surface finishing option that uses an electric charge to prompt dry powder and fuses it to the metal.
  • Anodizing – This is an electrochemical process that converts surface material into a durable, decorative and rust-resistant anodic oxide finish.
  • Chromate finishing – It is a surface finish that involves conversion of a metal surface to guarantee excellent corrosion-resistance.

12.  Ways Of Attaching Pin Fin Heat Sink To Boards

Ordinarily, most pin fin heat sinks used in different applications are quite versatile.

Besides, they can easily be attached to different bases using various techniques.

For instance, you can use the following methods when attaching pin fin heat sinks to different boards;

  • Thermal epoxy

It entails a material which comes in either single or dual part mixed adhesive with fillers containing thermal conductive elements.

Using thermal epoxy to attach pin fin heat sink to board assures excellent mechanical adhesion and cost-effectiveness.

However, you must refrigerate it before using it, which in some instances can be quite daunting.

  • Thermal tape

This process involves using pressure-sensitive adhesive tape made from acrylic compounds.

It is an economical way to attach pin fin heat sinks to boards since material used for such heat sinks are quite lightweight.

But it is imperative to ensure the heat sink surface and chip are tidy to make the tape to bond properly and attain the dual role.

13.  How To Choose Pin Fin Heat Sink For Any Applications

Nowadays, pin fin heat sinks are available in a wide range of designs, and this often makes it difficult to pick the right one for your applications.

However, it is necessary to know the particular guidelines to enable you to select the most suitable pin fin heat sink for your respective application;

a) Use a pin fin heat sink where the orientation demands for your application require cooling of natural convection heat sink.

b) If you can attain reasonable air flow rates even when it is subjected to a large pressure drop across the heat sink, pin fin heat sink comes in handy as an ideal choice.

c) Where the direction of air flow is unknown for forced convection cooled heat sink, using a pin fin heat sink is advisable.

In essence, this type of heat sink is relatively less sensitive to flow direction.

d) For any other situation other than the aforementioned, it is recommended that you use a plate fin heat sink.

Ideally, they are economical for such situations and simple to manufacture.

Moreover, you can find such heat sinks in various sizes and configurations.

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