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stacked fin heat sink

Stacked Fin Heat Sink

In China, Heatell is popular for stacked fin heat sink production. For high-power cooling, Heatell manufacturing company is your go-to expert. Heatell stacked fin heat sink is ideal for any machine that requires heat dissipation from both sides.

The appearance of our stacked fin heat sink has a cooling base plate on both sides and heatsink fins in the middle. As your leading stacked fin heat sink manufacturer, we can offer customized stacked fin heatsink in both aluminum and copper depending on your requirements.

Send us now a quick request so we could get started!

Your Leading Stacked Fin Heat Sink Supplier and Manufacturer

Heatell is a company in manufacturing and design. We have rich experience in stacked fin heat sink for almost 8 years. Our advanced production line is imported from Taiwan, which strives to produce a wide range of excellent quality stacked fin heat sinks.

stacked fin heat sink

Do you need to import a stacked fin heat sink for your projects? No worries! Our team, Heatell is always willing to assist your needs.

skived heat sink

Our stacked fin heat sinks bring countless advantages and features to your applications.

heat sink performance

CNC machining, stamping, cutting, fine surface treatment, and Revieting are all realized in Heatell, ensures to save your entire purchasing costs.

heat sink types

Item TypeStacked Fin Heat Sink
Materialcopper/aluminum
ThicknessBased on your requirements.
ShapesBased on your requirements.
ApplicationInverter / Inverter / Power / IGBT / Rectifier / LED Lighting / Welding Machine / Communication Equipment / Electronics Industry /
Solid State Relay / Controller / Electromagnetic Heating
Film Thickness
Anodized: Customized. Normal thickness: 8 um-25um.
Powder Coating: Customized. Normal thickness: 60-120 um.
ColorBased on your requirements.
FinishAnodizing, Mill finish, Electroplating, Polishing, Sand blasted, Powder coating, Silver plating, Brushed, Painted, PVDF etc.
Lengthcustomized length
Deep processCNC,drilling,milling,cutting,stamping,welding,bending,assembling,Custom Aluminum Fabrication
MOQLow MOQ
Packagingstandard export packaging or as discussed
CertificateCE/SGS/ISO/Rohs
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

We are looking forward to sharing expertise with you on your next projects. Contact us now.

heat sink profile testing

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Heatell: Your Premier Stacked Fin Heat Sink Supplier and Manufacturer Near Me

Heatell stacked fin heat sink is also called zipper fin or snapped fin. No wonder, they are constructed by stamping sheets of bent copper or aluminum to form an array of fins.

stacked fin heat sink advantage

Heatell stacked fin heat sink is working a high pressure to press multiple fins, single extrusions, and single fins. This type of heatsink can recognize a cooling structure. They are featuring bottom and top base plates ideal for mounting power devices.

Heatell, a world-leading expert manufacturer is capable of manufacturing highly universal stacked fin heat sink. They are widely used for cooling high-power devices like generators, power inverters, and transformers.

Our stacked fin heat sink brings a lot of advantages to your applications. In fact, Heatell stacked fin heat sink is popular in the market for its higher thermal performance, longer service life, easier maintenance and installation, lower manufacturing costs, and higher strength.

When compared to extrusion heatsink, Heatell stacked fin heat sink offers better performance. Their thinner fin profiles make them ideal in lower pressure drop and higher surface area.

We are capable to cool the most demanding thermal challenges thanks to our state-of-the-art manufacturing and engineering expertise. It brings great help to the telecom, electronics, and networking industries.

Heatell carries a wide range of stacked fin heat sink for intended applications. We are a company with 8 years of experience in heatsink fabrication. We have expert engineers to custom your ideal design of the stacked fin heat sink.

For further interests about the Heatell stacked fin heat sink, let our trained staff assist you.

Stacked Fin Heat Sink: The Ultimate Guide

This guide covers everything you need about stacked fin heat sink.

Whether you want to learn about the design, features, and fabrication technique, among other aspects.

Take a look.

1.  What Is A Stacked Fin Heat Sink?

There are a number of processes you will undertake when you are making a stacked fin heat sink.

For instance, you will use high pressure that presses on single extrusions, multiple, and single fins into one stacked fin heat sink.

stacked fin heat sinks

stacked fin heat sink

Furthermore, a stacked fin hat sink gets manufactured by a press-fit method.

This enables it to attain cooling characteristics on the lower and top plates that you use when mounting power equipment.

2.  Does A Stacked Fin Heat Sink Have Any Advantages?

A stacked fin heat sink has many advantages depending on its usage.

A stacked fin heat sink has the capacity of inhibiting electrical parts from the effects of overheating which is detrimental.

This allows the electronic equipment to operate at certain temperature levels.

Here are some of the advantages of using a stacked fin heat sink:

  • Thermal energy maintenance

A stacked fin heat sink will maintain the controlled thermal energy of electronic equipment.

It will achieve this task through the transfer of heat to the surrounding environment from the elements of the electronic circuits.

  • It will enhance the reliability of electronics

A stacked fin heat sink will improve the reliability of several electronic devices.

This is because it will inhibit the electronic components from failing because of their functionality.

  • Low cost

When making a stacked fin heat sink, you will spend less during manufacturing making it a cost-effective tool.

  • Increase the cooling area

A stacked fin heat sink has a large surface area enabling it to dissipate heat more efficiently.

  • Easy maintenance

A stacked fin heat sink is simple to maintain and install due to its simple structure.

  • Durability

A stacked fin heat sink can last for long as it has high strength in its construction.

This makes it suitable for use in several electronic devices as it will ensure continuous cooling during usage.

3.  What Types Of Materials Will You Use When Fabricating A Stacked Fin Heat Sink?

Traditionally, several fabricators of heat sinks were using aluminum or copper when making stacked fin heat sinks.

Besides, the thermal conductivity of aluminum is less than that of copper material.

However, copper is heavy and costly, and you cannot form it from extrusion processes.

These limitations made the use of aluminum more common in the manufacture of stacked fin heat sinks.

Besides, aluminum lacks the conductivity you will find in copper material, however, it has several advantages that make up for this limitation.

For instance, aluminum is brighter than copper thus making it suitable for reflecting heat from various light sources.

Even unpolished aluminum material has this quality.

Furthermore, you can anodize aluminum and have it in several colors.

Also, aluminum is lightweight and easy to form thus suitable for making custom or large stacked fin heat sinks.

In addition, stacked fin heat sinks made with aluminum material are some of the most affordable heat sinks on the market.

stacked fin heat sink

stacked fin heat sink

The various grades of aluminum you can use include the following

  • Aluminum 1050 has low strength and high thermal conductivity
  • Aluminum 6060, 6061, and 6063 have suitable mechanical characteristics but are less conductive

Copper is still a suitable material as it has the following benefits:

  • Excellent thermal conductivity since its thermal conductivity is twice that of aluminum
  • Corrosion-resistant
  • Antimicrobial-resistant

These characteristics make copper materials a premium choice when manufacturing stacked fin heat sinks.

This is also because it is more costly than aluminum and is tasking to form.

4.  What Is The Operational Principle Of A Stacked Fin Heat Sink Operate?

A stacked fin heat sink will transfer heat from devices to the surrounding cooler environment.

Furthermore, it will increase the surface area that is in contact with the cooler air.

Conduction, convection, and radiation are the main processes through which a stacked fin heat sink will use to dissipate heat.

Conduction happens when two bodies with different temperatures contact one another.

This allows energy transfer from the hot surface to the cool surface through thermal conductivity.

Through this process, a hot device is cooled during operation enabling it to be durable.

5.  In Which Areas Will You Use A Stacked Fin Heat Sink?

A stacked fin heat sink has a broad range of applications more so in electronic equipment and devices.

This is because electronic devices are prone to generating large amounts of heat when in operation.

Furthermore, these electronic devices cannot independently moderate the heat that they produce.

The generation of heat in electronic devices can negatively affect their performance, for instance, affect the operation of semiconductors.

This leads to the components failing thus damaging the equipment.

Analysis of the thermal performance of all electronic equipment is a difficult and time-consuming task.

For this reason, a stacked fin heat sink offers an additional cooling effect to such devices.

It does this through the dissipation of heat from the devices to the surrounding environment from parts like:

  • Diodes
  • Integrated circuits
  • Voltage regulators
  • Transistors, etc.

Other areas where you can use stacked fin heat sinks include:

  • Industrial facilities
  • Gas water heaters
  • Cooling units
  • Power plants
  • Geothermal cooling and heating
  • Forced air heating
  • HVAC units
  • Solar thermal water systems

6.  What Aspects Are Worth Considering When Fabricating A Stacked Fin Heat Sink?

The design of a stacked fin heat sink will determine how effective it becomes at dissipating thermal energy.

Furthermore, a stacked fin heat sink design needs to enable heat transfer to the surrounding environment as a passive structure.

This may happen through one or a combination of conduction, radiation, and convection.

There are several factors to consider when constructing an effective stacked fin heat sink.

These factors include the following:

Thermal Resistance

This is the heat flow resistance between the surrounding environment and a semiconductor.

The environment in this case can either be a fluid coolant or ambient air.

Determination of thermal resistance of devices is paramount when selecting stacked fin heat sinks.

This is because there has to be an ample amount of thermal resistance on the path that assists in heat dissipation.

Besides, such an effect impacts the heat transfer rate of the stacked fin heat sink.

Thermal resistance makes sure stacked fin heat sinks are efficient and indicates any reduction of temperature levels.

Material Construction

This design category includes:

  • Material for stacked fin heat sink

This can either be aluminum or copper as they are the most popular heat sink materials.

  • Interface material

These are the materials that occupy spaces between the stacked fin heat sink which is usually air.

Besides, some manufacturers will use mica as the interface material.

Thermal interface materials will decrease the thermal resistance of electronic devices thus ensuring a fast thermal energy transfer.

The heat that a device will generate is a sum of heat generation from all its components.

Besides, it is not simple to ensure an effective heat dissipation because these parts have different levels of thermal resistance.

Therefore, it is important to minimize the thermal resistance to guarantee an effective heat flow.

Besides, you can lower the thermal resistance in a stacked fin heat sink by including thermal interface materials.

Fin Shape And Arrangement

The arrangement of fins in a stacked fin heat sink will determine how efficient it is at dissipating heat from devices.

Also, the design of heat sinks includes soldered fins during their construction.

The orientation of these fins should enable a surface area that will allow the passage of air via the stacked fin heat sink.

Therefore, the arrangement of fins is important in the process of cooling the device.

Also, the shape of the fins will determine how efficient a stacked fin heat sink will be at dissipating heat.

The shape affects the efficacy of convectional heat transfer from the electronic device.

For this reason, it affects the cooling principle of the devices and the stacked fin heat sink.

Attachment Techniques

The selection of a suitable attachment method will affect how effective a stacked fin heat sink will be during operation.

Selecting the attachment method should consider the thermal and mechanical needs of a device.

There are numerous ways you can employ when attaching stacked fin heat sinks to different devices.

Some of the most common techniques include:

  • Push pins
  • Thermal tapes
  • Plastic clips
  • Spring load screws
  • Wire clips
  • Epoxy

7.  What Is The Process Of Making A Stacked Fin Heat Sink?

Making a stacked fin heat sink entails the application of high pressure to combine several fins into one stacked heat sink.

Firstly, you will cut the aluminum extrusions into single pieces.

Ensure the size and shape of the cuts match the design the engineers made in their drawings.

Secondly, you will join all the single pieces using a technique known as stamping.

Lastly, you will conduct surface machining like fly-cuts on the almost finished stacked fin heat sink.

Furthermore, you can perform additional processes to make the final stacked fin heat sink.

These additional processes include the following:

  • Drilling
  • Tapping
  • Grooving

8.  When Manufacturing A Stacked Fin Heat Sink, What Methodologies Will You Use?

Several factors will determine which methods you will use when fabricating stacked fin heat sinks.

These entail the configuration and materials that you will use when making the final product.

Examples of production technologies you can use when manufacturing stacked fin heat sinks include the following:

  • Milling

In this method, you will cut pieces from a blank material.

Milling allows you to cost-effectively make heat sinks in any shape.

Furthermore, milling may prove to be more expensive than other methods when conducting it in large amounts.

However, it enables you to fabricate the components rapidly.

  • Extrusion

In this process, you will force hot metal billet via steel dies which is a common method when using aluminum material.

When making a stacked fin heat sink, extrusion process enables you to make it quickly and affordably.

This is possible as you can use ductile materials like 1050 aluminum.

Furthermore, before you start using the stacked fin heat sink, you will anodize them.

  • Scarfing

This method entails cutting the materials you will use into several slices.

Scarfing is also known as skiving and allows you in making stacked fin heat sinks with tight and thin fins.

It will also offer surface roughness that enhances the surface area slightly.

  • 3D printing

Advancement in copper additive fabrication makes 3D printing of heat sinks achievable.

Some techniques that prove successful are:

  • Directed energy deposition
  • Powder bed fusion
  • Casting

This is a method where you will pour molten metal inside a mold.

Besides, this method produces heat sinks that are complex and provide suitable mechanical characteristics.

9.  How Does An Active, Passive, And Hybrid Stacked Fin Heat Sink Compare?

This is how these three compare:

  • Active

This version utilizes forced air to enhance fluid flow in the system.

For instance, it incorporated a fan or a blower to generate forced air.

Active stacked fin heat sink

Active stacked fin heat sink

The fan enables cool air to move across the hot heat sink thereby increasing the thermal gradient which enhances heat dissipation.

  • Passive

This version depends on natural convection as the suspension of the hot air will make it flow in the unit.

Also, they do not need additional power units to eliminate heat.

However, they are not as effective as active stacked fin heat sinks.

Passive stacked fin heat sink

passive stacked fin heat sink

  • Hybrid

This version utilizes both active and passive heat sinks.

The active portion activates only when temperatures reach limits that passive systems cannot contain.

hybrid stacked fin heat sink

hybrid stacked fin heat sink

10.  What Should You Consider When Selecting a Suitable Stacked Fin Heat Sink For Your Application?

These include:

  • The cost since it determines what stacked fin heat sink you can afford
  • Consider if you require passive, active, or hybrid stacked fin heat sinks in your application
  • How the parts you are using need cooling for them to perform efficiently
  • Available space or the installation of the stacked fin heat sink
  • The best layout of the stacked fin heat sink that will achieve suitable thermal performance for your application
  • The power draw that the device will be using during the operation

11.  Can You Apply A Surface Finish To A Stacked Fin Heat Sink?

Some surface finishes you can use include the following:

  • Anodized finish
  • Electroless nickel plating
  • Powder coating
  • Clear chromate finish

12.  What Factors Affect The Cooling Capacity Of A Skived Fin Heat Sink?

These include:

  • Thermal resistance
  • Cooling material
  • Fin design
  • Post-treatment
  • Attachment
  • Thermal

skived fin heat sink

skived fin heat sink

13.  What Factors Influence A Stacked Fin Heat Sink Performance?

Many variables will influence how effective a stacked fin heat sink will be at dissipating heat from various equipment.

Some of the important factors that affect its performance include the following:

  • Size of the stacked fin heat sink
  • Rate of airflow
  • Size of the ducts between every fin
  • Fin Arrangement
  • Density of fins
  • Heat transfer coefficient
  • Thermal conductivity Of the stacked fin heat sink material
  • Length of the stacked fin heat sink
  • Volumetric resistance
  • Width of the heat sink
  • Forced and natural convection
  • Thermal compound conditions

14.  Which Methods Will You Use When Calculating How A Stacked Fin Heat Sink Will Perform?

The methods you can use include:

  • Theoretical model of heat transfer

Here you will use theory on fluid dynamics and heat transfer.

  • Experimental method

Here, you will conduct a series of experiments to determine the rate of flow, thermal resistance, input power, etc.

However, the outcome can give misleading information when using the heat sink in unducted applications.

  • Numerical method

This method can determine performance before you even make the physical stacked fin heat sink.

Numerical methods will offer qualitative or even quantitative fluid flow anticipations.

15.  Are There Upcoming Developments For Stacked Fin Heat Sinks?

There have been recent developments of new materials that you can use in making stacked fin heat sinks.

These include:

  • Carbon nanotubes [CNT] have excellent thermal and electrical characteristics
  • The metal-diamond composite that attains high thermal conductivity with a minimal coefficient of thermal expansion
  • Graphene
  • HOPG or Highly Ordered Pyrolytic Graphite

Besides Stacked Fin Heat Sink, What Are The Other Types Of Heat Sinks Available?

The types of heat sink available can be determined by the following:

  • Depending on airflow

These include:

  1. Active heat sink
  2. Passive heat sink
  • Depending on material

These include:

  1. Aluminum heat sink

Aluminum fin heat sink

aluminum heat sink

  1. Copper heat sink
  • Depending on the use of water

These include:

  1. Two-phase heat sink
  2. Solid metal heat sink
  3. Pumped liquid heat sink
  • Depending on the manufacturing process

These include:

  1. Zipper fin heat sink

Zipper fin heat sink

Zipper fin heat sink

  1. Skived fin heat sink
  2. CNC machined heat sink
  3. Die cast heat sink
  4. Extruded heat sink
  5. Bonded fin heat sink

For all your stacked fin heat sinks, contact us now.

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