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Custom Heat Sink

Wellste custom heat sink can be build based on clients’ layout, or design that meets their preferences.  Since custom heat sinks will definitely satisfy the entire standards of your demands and requirements, these will definitely a great choice for you.

  • Fast lead time within 15-20 days
  • Support CNC machining with tight tolerance
  • Custom Heatsink with high heat performance
  • Engineers help your design to final manufacturing

The Professional Custom Heat Sink Manufacturer and Supplier

Wellste custom heat sink can be fabricated from aluminium alloy, thus, provide more suitable production because of its lightweight and cost-effective.

custom heatsink

At Wellste, we custom heat sink configurations including their height, width, and length according to your particular applications.

Custom Heatsink

The custom heat sink was designed using the most appropriate manufacturing process.

Custom Heat Sink

Thus, we provide high precision mass-produced heat sinks with complex features, cut-outs, through-holes, and so on.

custom aluminum heat sinks Custom Heat Sinks

Wellste Custom Heat Sink has a low MOQ demands, and we provide free samples for your test.

aluminium heat sink manufacturersSkived Fin Heat Sinks Bonded Fin Heat Sink Die Casting Heat sink round heat sink

Item TypeCustom Heat Sink
MaterialAluminum, Copper
SizeStandard or customized size
Colorssilver, black , blue, wood color, RAL powder coating color, and so on
ShapeRound, Square, Flat, or customized
Thickness0.4mm-20mm or Customized
ApplicationLED Lighting, Inverter, Welding Machine, Communication Device, Power Supply Equipment, Electronic Industry, Thermoelectric Coolers/Generator, IGBT/UPS Cooling Systems, etc.
Production ProcessProfiles Extruding—Cutting—CNC Machining(Milling, Drilling, Tapping)—Deburring— Cleaning— Inspecting–Packing
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
Lengthcustomized length
Packagingstandard export packaging or as discussed
OEM & ODMAvailable. our engineer can check and discuss your design, great help!
Free SamplesYes, we can provide free sample
Delivery time15-20 days after sample confirmed & down payment, or negotiated
PortShanghai Port

aluminum heat sinkaluminium heatsink extrusionextruded heat sink surface treatment

Wellste designed custom heat sink which can be brushed, milled, lit, drilled and tapped that match within your demands.

0% Quality Complaint
Quick Response

Wellste provide you with excellent customer service. Whatever questions you met during or after production our support team will give your fast reply with 7/24 H service.

extruded heat sink
One-Stop Manufacturing Service

Wellste provide one-stop service, including cutting, milling, punching, drilling, welding, CNC machining & assembling etc, meeting your demands and saving your time & cost.

Mechanical Testing
Quality Guarantee

Wellste has advanced in-house quality testing lab, 48+ QC inspection team, 100% inspection before shipment, Guarantee the product quality and eliminate your concerns.

-Standard Packing Option-

* Long bar length profiles 3.0-6.0 meters*
* Short bar length profiles 0.3-3.0 meters*

-Loading & Shipment-

Frequently Asked Questions
Do you have any MOQ limit for Custom Heat Sink?

Wellste provide Low MOQ for Custom Heat Sink. 1pc sample is free for you to check our quality.

Can I have a sample order for Custom Heat Sink?

Yes, Wellste is pleased to provide Custom Heat Sink for you check the quality.

Are you a trading company or manufacturer?

We are a manufacturer with OEM/ODM service.

What's the Surface Treatment of your Custom Heat Sink?

Copper Passivation/Aluminum Anodized

How long time of your Custom Heat Sink sample to prepare?

For Custom Heat Sink, It takes a little bit long time to make extrusion tooling, commonly it requires 30-35 days finish.

What is payment terms of Custom Heat Sink?

30% TT in advance, the balance payment is paid before shipment.

Wellste: Your Professional Custom Heat Sink Supplier

Wellste has an expert engineering team that can deliver custom heat sinks solutions in custom sizes and shapes.

custom aluminum heat sink

Also, we have a variety of custom figures available, with the option of an anodized finishing for increased surface protection. This tailored-made aluminum heat sink will impact final design configurations which meet your product needs.

anodized heatsink

Wellste, as a leading custom heat sink manufacturer, we are acclaimed to provide custom heat sink which is ideal for a particular solution in airflow, power dissipation, mechanical/size limitations, computers, cell phones, LED lights, DVD player, refrigerators, and many more objects.

Custom heat sinks are manufactured through extruding, die casting, cold forging skived, and bonded lastest techniques to come up with your better surface performance.

Whether you need a custom heat sink for personal projects or a large scale of your business needs, we at Wellste, engage to provide high-quality heat sink products and efficient services for you.

custom heat pipe

At Wellste, we can modify heat sinks within our standard heat sinks that meet the application required for the product.

Designing your own custom heat sink is a better way because it helps reduce product cost, thus can lessen manufacturing the model significantly.

Wellste custom heat sink design can reduce any impact on nearby elements where it place and it is also useful as signal routing is not compromised.

aluminum heat sink manufacturer

Our engineering staff and the team can assist you in choosing the appropriate heat sink type, specifications, and aspects of design that meet your application requirements in components it fitted. Over the years of manufacturing, we always provide innovative solutions to our clients. Wellste, as an expert aluminum heat sink supplier, strictly enforces the ISO9001 system to ensure product quality.

custom heat sink

Wellste is a professional Aluminum heat sink manufacturer based in China. We have been known for our high experience in the industry and our innovative technique when it comes to heat sink specialty.

Moreover, we would like to become a great partner who can fulfill each customer’s demands, and bring the added value to them. At Wellste, we cater to your custom heat sink needs and therefore serve as your solution provider when high power is present in your conditions.

Seize the satisfaction of purchasing custom heat sinks from Wellste, let us help you skyrocket your business today! Contact us for more valuable information.

Custom Heat Sink: The Ultimate FAQ Guide

Choosing custom heat sink for your specialized application can be an overwhelming task.

A reason this guide will answer all questions you have been asking about these extruded heat sinks.

Keep reading to learn more.

What Is A Custom Heat Sink?

Custom heat sink

Custom heat sink

Custom heat sinks ate special type of equipment that absorbs and dissipates high temperatures from mechanical and electronic devices.

You will use it to cool the overheating parts of the electronic and mechanical devices by absorbing and dissipating heat.

What Are The Different Types Of Custom Heat Sinks You Supply?

You can choose the different types of custom heat sinks depending on the application specifications.

Here are some of the main types of custom heat sinks that you can opt for.

  • Machined Custom Heat sinks
  • Extruded Custom Heat sinks
  • Casted Custom Heat sinks
  • Die-Cast Custom Heat sinks
  • Forged Custom Heat sinks
  • Skived Custom Heat sinks
  • Stamped Fin Custom Heat sink

Which Factors Should You Consider When Designing Custom Heat Sinks?

You can simply design your custom heat sink according to your application specifications.

Implying that, you can customize the custom heat sinks according to your application specifications.

When designing the custom heat sinks, you have to ensure that the following factors are adhered to.

Availability Of Space

You should consider looking at the availability of space when designing the custom heat sinks.

It is important to look at the availability of space to consider the main dimensions of the custom heat sink.

Source Of Power

You must also look at the source of power for the device that you would like to cool using the heat sink.

The power on the source of heat or mechanical device should be in terms of watts as well as the size.

Air Speed

You should also look at your design in terms of air speed in LFM as well as direction of air flow.

The speed of air flowing over the fins of the custom heat sink will assist in dissipation of heat from heat sinks.

Maximum Operating Case

You must also look at the maximum operating case or the junction temperature of the custom heat sinks.

This will help in determining the quantity or rate of heat dissipation from the custom heat sinks.

Local Ambient Temperature

The local ambient temperature of the custom heat sink will come in handy in determining the temperature difference.

As soon as you determine the temperature difference, you will understand how much heat the heat sink dissipates.

Attachment Method

You must also look at the attachment method that you will use to place the custom heat sink on the device.

There are different types of attachment methods for custom heat sinks with soldering being the most preferred method.

Thermal Interface Properties

In this case, you will look at different thermal interface properties including thermal impedance and thermal conductivity among others.

You should consider looking at the thermal interface properties that will determine the performance of the custom heat sinks.

Estimated Usage

You should also look at the estimated duration of the custom heat sink and how long it will serve you.

In terms of estimated usage, you should also look at the budget that will influence the estimated usage of custom heat sinks.

Types of custom heat sinks

Types of custom heat sinks

What Is The Significance Of Customizing Heat Sink?

You should consider manufacturing or coming up with a custom heat sink based on personal designs.

Implying that, every aspect of the heat sink that you will make will be based on your personal specifications.

You have the freedom of choosing the specifications of the custom heat sink that you need.

In other words, customizing the heat sink will give you the chance of making the most appropriate heat sink for your applications.

What Is The Difference Between Machined Heat Sinks And Extruded Custom Heat Sinks?

Among the different types of custom heat sinks.

You may decide to use the machined or extruded custom heat sinks.

To properly understand the most suitable type of custom heat sink, here are the main differences.

Extruded Custom Heat Sink

You can use the method of extrusion to extrude or manufacture the extruded heat sinks.

Here, the main material that you will use is aluminum metal leading to low-cost aluminum heat sinks.

Machined Custom Heat Sink

This is a low set-up cost type of heat sink that you will produce through proper machining of the different metallic materials.

You will use it for low to medium volume production of heat sink with great precision, complex features and contours.

How Does The Casted Custom Heat Sink Compare To Forged Custom Heat Sink?

Apart from the types of custom heat sinks described above, you may also opt for forged or casted custom aluminum heat sinks.

Here is a comparison between the casted custom heat sink and the forged custom heat sink.

Forged Custom Heat Sink

This is a thin sectioned type of heat sink that you will make by forging using different tools and intense pressure systems.

Forged heat sinks also come in a range of shapes and designs.

Forgen aluminum heat sink

Forged aluminum heat sink

Casted Custom Heat Sink

This is a special type of heat sink that you will produce through casting of different types of metallic materials.

In many cases, you will produce prototypes and medium or short volume die cast heat sinks.

Die cast aluminum heat sink

Die cast aluminum heat sink

How Do Skived Custom Heat Sinks And Stamped Fin Custom Heat Sinks Compare?

In addition to the above custom heat sinks, you may also settle on skived or stamped fin custom heat sinks.

Here are the main differences between the skived custom heat sink and the stamped fin custom heat sink.

Skived Custom Heat Sink

You will make this type of heat sink using special cutting tools as well as controlled shaving technique to produce single block heat sinks.

You will come up with a thin-finned heat sink with great population of uniformly distributed and shaped fins.

Skived heat sink

Skived heat sink

Stamped Fin Custom Heat Sink

This type of heat sink is made from stamping aluminum or copper into particular configurations based on the application specifications.

You can stamp the fins into a broad range of thicknesses and geometries especially in high to medium volume production.

Fin heat sink

Fin heat sink

Which Materials Do You Use To Manufacture Custom Heat Sinks?

Well, there are different materials that you can use to manufacture the custom heat sinks.

In many cases, you will use aluminum materials while copper is also among the best materials that you can use.

Even though aluminum is not a great heat conductor in comparison to copper, it is lighter in weight and costs less.

The most common types of aluminum alloys that you can use include:

Aluminum Alloy 1050

It has a very high thermal conductivity value at 229 W/(mK) even though it is soft mechanically.

Aluminum Alloy 6060

You can also use aluminum alloy 6060 is a great material for the custom heat sink with low stress.

Aluminum 6061

In addition to the above types of aluminum alloys, you can use aluminum 6061 with thermal conductivity of 166 W/(mK).

Aluminum 6063

Finally, the other type of aluminum alloy that you can use to make custom heat sinks is aluminum 6063.

This type of material is important for making aluminum heat sinks with the thermal conductivity of 201 W/(mK).

What Is The Difference Between An Active Heat Sink And Passive Heat Sink?

When classifying the custom heat sinks, you will have two main forms of classification known as active and passive heat sink.

To make better choices on classifications, here is a comparison between the active heat sink and the passive heat sink.

Passive Heat Sink

Passive heat sinks are types of heat sinks that is not assisted directly by additional processes or products during the cooling process.

In this case, the heat that is generated from the overheating devices is dissipated entirely through the passive heat sink.

In other words, the heat will move from the overheating device through the passive heat sink and into the environment.

Since the passive heat sinks perform the heat dissipation function individually, these devices are often bigger in size.

You will use the passive heat sinks on devices that do not heat too much to require the help of the active heat sinks.

Active Heat Sink

You will use the active heat sink alongside another cooling device to help in the cooling process of an overheating device.

Here, you will have to provide assistance to the custom heat sink to eliminate more heat from the overheating device.

You can use cooling devices such as water pumps, fans, or other powered cooling device to enhance cooling capacity and speed.

In most cases, you will have custom active heat sinks with fans mounted above and beside the active heat sink.

With the fans in place, the heat sink cooling process is assisted by pushing a stream or flow of air.

How Do The Copper Heat Sinks Compare To The Aluminum Heat Sinks?

You can also compare or classify the custom heat sinks by looking at the type of materials.

In this case, the main types of materials that you will use for the heat sinks are aluminum and copper.

These materials have varying capabilities which assist in heat dissipation through the custom heat sinks.

Here is a comparison between the copper heat sink and the aluminum heat sink.

Copper Heat Sink

Just from the name of the heat sink, you can note that the main material for manufacturing copper heat sinks is copper.

You should consider using copper heat sinks because they have impressive heat transfer qualities.

In other words, copper heat sinks are excellent thermal conductors that draw heat efficiently and very quickly.

Despite the good performance copper heat sinks will cost you a lot of money and also very heavy in weight.

Aluminum Heat Sink

You can also opt for the aluminum heat sink which uses aluminum as the main heat dissipation material.

It has great heat or thermal conductivity properties even though the level is not as good as that of copper.

Despite having lower heat conductivity, you should consider using aluminum heat sinks because it is lighter and cost-effective.

In most aluminum heat sinks; heat transfer is assisted with numerous thin metal fins that draw the heat from the device.

What Is The Difference Between Finned And Pinned Heat Sinks?

Other than the materials for making the aluminum heat sinks, you can also look at the structure of the heat sinks.

In this category, you can either use the finned custom heat sink or the pinned custom heat sink.

Here is a comparison between the finned custom heat sink and the pinned custom heat sinks.

Finned Custom Heat Sinks

You can opt for the finned custom heat sink which is a solid metal block sliced or feathered into different thin plates.

The fins increase the surface area of the custom heat sink thus increasing the ability of the heat sinks to transfer heat.

You can manufacture the finned custom heat sink by forging, milling, CNC machining or through the die-cast manufacturing process.

Pinned Custom Heat Sinks

Pinned heat sink

Pinned heat sink

You can refer to it as a pin fin custom heat sinks with cluster of rods and pins extending from the core.

The pins on the pinned custom heat sink can either be square, elliptical, or cylindrical in shape to assist in heat dissipation.

The pins increase the surface area of the custom heat sinks thus boosting the heat dissipation capabilities of the heat sink.

What Are The Common Options For Manufacturing Custom Heat Sinks?

There are different types of manufacturing options for the custom heat sinks.

You can choose among the numerous types of heat sink manufacturing options to make your custom heat sink.

Here are some of the types of heat sink manufacturing options for the custom heat sinks.

Extrusion Manufacturing Options

You can use the extrusion manufacturing options which involves forcing the metal into the shape required.

It is the most common type of manufacturing option that you can use in manufacturing most custom heat sinks.

Forging Manufacturing Options

You will need a mould or die to set or shape the custom heat sink into the form that you require.

It is the cheapest mode of manufacturing custom heat sinks especially when you need them in bulk.

Bonding Manufacturing Options

In this case, you will attach the fins individually in a dense array on the base of the custom heat sink.

It is the best manufacturing option that you will use in space limited or bespoke applications.

Stamping Manufacturing Option

This is the cheapest manufacturing mode for the custom heat sinks even though it is less powerful and effective.

In other words, most of the custom heat sinks that you will produce through stamping are generally ineffective coolers.

CNC Machining Option

You can also use CNC machining which is expensive as it involves precision cutting of the metal from a metal block.

It is an expensive option because most of the materials cut from the main block are wasted.

Zipper Fin Or Skived Manufacturing Option

This is a very effective mode of manufacturing which uses a machine to cut through a solid block of metal.

It is an expensive method, which makes fins then places them in the right position with slight curves at the base.

What Are Some Of The Uses Of The Custom Heat Sink?

You already understand that the main purpose of the heat sink is to dissipate heat and cool the custom heat sink.

There are numerous applications that employ the custom heat sink in the dissipation of heat.

Here are some of the major applications of the custom heat sink.

  • Motherboard Heat sinks for electronic devices such as computer motherboards
  • Relay and Solid State Heat sinks
  • Heat sinks for power transistors
  • Printed Circuit Board Heat sinks
  • Internal or External Laptop Heat sinks
  • Heat sinks for Amplifying Machines

Which Criterion Do You Use To Choose The Right Heat Sinks?

You have to be very careful when choosing the right type of heat sink for you application.

In other words, there are numerous applications for the heat sinks that require different heat sink specifications.

Here are some of the factors that you need to look at when choosing the right type of heat sink.

Thermal Design Profile

You have to look at the sort of power draw that the overheating device will be using before getting the heat sink.

It will help in indication the power consumption of the component since it specifies the maximum heat produced by the components.

Target Temperatures

You should also understand the target temperature where you will know the final heat that you need to achieve.

In other words, you have to understand how cool the overheating device will be depending on type of heat sink.

Availability Of Space

You must also understand the amount of space available for the installation of the custom heat sink.

Since the custom heat sinks are available in numerous sizes, you must consider the right size of heat sink for the application.

Heat Sink Design

You should also have a look at the different heat sink designs and settle on the one with greatest performance.

Implying that the custom heat sink design must be compatible to the application specifications for maximum performance.

Type Of Heat Sink

In this case, you will choose between using the active or the passive custom heat sink in your applications.

The type of heat sink that you will be using will depend on how much heat you would like to control.


You must also consider the amount of money that you would like to spend on the custom heat sinks.

It is important to choose the most effective type of heat sink that will perform best at the most affordable price.

What Are The Typical Applications Of The Custom Heat Sinks?

You can use the custom heat sink in quite a number of applications depending on the specifications.

Typically, you will use the custom heat sink in three main applications.

Here are the three main applications for the custom heat sinks.

AC/DC Converter

You will use the passive custom copper heat sink in dissipating heat from the AC/DC converters.

IC Cooling

You will also use the active aluminum custom heat sink in IC cooling applications.

LED Applications

In the light emitting diodes, you will have the passive aluminum custom heat sinks.

What Is The Process Of Fitting Heat Sink Onto A Device?

CPU heat sink with fan

CPU heat sink with fan

Since we have different types of heat sinks, you should understand that the mounting mechanism may also vary.

Despite that difference, you should also understand that most of the heat sinks have similar mounting mechanisms.

You have to install the baseplate tightly on to the surface of the component you intend to cool.

Here, you will use screw down assembly and manual clamping mounting methods.

You will also use different mounting accessories such as spring mount rivets, spring clips, adhesive tapes and screws.

It is also important to place or apply a thermal paste or grease between the custom heat sink and the overheating materials.

The thermal paste will help in increasing thermal transfer between the two metal plates thus boosting heat dissipation.

What Is The Significance Of Using Heat Sinks On Power Amplifiers?

Power amplifiers have transistors on them that produce quite a lot of heat.

You have to be very careful with the amount if heat generated as it might lead to distortion of the appliances.

In such as case, you will need the heat sinks to help in controlling the heat thus reducing the effect of heat damage.

It will also help in protecting delicate electronics on the power amplifiers thus increasing the durability.

How Does The Heat Sink Work?

Custom heat sinks work by eliminating or transferring heat from the overheating components into the atmosphere.

To understand how the custom heat sink works. Here are the four steps that you need to have in mind.

Heat Generation

As the main device operates, there will be generation of heat from the processing and transfer of energy.

You have to know the amount of heat that the source generates in order to understand the capacity of the custom heat sink.

Heat Transfer

With heat overload at one point, the heat will move from one point to the next through heat pipes or other conducting devices.

The heat will move through natural conduction from the heat source into the custom heat sink.

It is important to use a highly conductive material such as copper and aluminum to help in conducting heat.

Heat Distribution

As soon as the heat reaches the custom heat sink, it will move through the heat sink uniformly to all the parts.

With the difference in temperature profile, heat will be conducted from the hot areas to the cool areas of the heat sink.

As this happens, the heat sink drains the high temperatures from the overheating device thus making it cool.

Through the temperature difference capabilities, the heat sink will transfer heat into the environment.

What Does The Future Hold For Custom Heat Sink Materials?

Well, the future is bright for the custom heat sink materials with new developments coming through every time.

You should expect to have new materials that are lighter in weight and also have better conductivity.

Apart from that, you should expect bonding of different materials in order to improve the material capabilities.

How Does The Custom Heat Sink Compare To Fans?

Well, you can either use the fan or a custom heat sink to help in dissipation of heat.

When you use fans, you will be blowing cool air currents over the heating devices thus eliminating heat through convection.

You must have a source of power which will help in powering up the fans to blow cool air.

On the other hand, custom heat sinks use the process of conduction to eliminate heat from the overheating devices.

You do not have to power the custom heat sinks for them to function accordingly.

What Are The General Rules To Follow When Using Heat Sinks?

When using the heat sinks, you have to follow general rules that will help in cooling the overheating devices.

Here are some of the rules that you must follow when using the custom heat sinks.

  • Use the heat sink grease between the overheating device and the heat sink to increase thermal transfer
  • Mount the fins in vertical planes to optimize the natural cooling capabilities
  • Avoid overcrowding devices that use the heat sinks at one particular point
  • Avoid blocking the flow of air around the heat sink for optimum heat dissipation
  • Consider using active custom heat sinks with help of fans in case the heat buildup is too high

As a trusted heat sink manufacturer in China, we offer unlimited options for our customers to choose from.

Whether you need aluminum heat sink enclosure, LED heat sink, skived fin heat sink, pin fin heat sink, round heat sink, or cylindrical heat sink, you will find them right here.

Contact us now for all your custom heat sinks.

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