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Extrusion Process
Extrusion001
What is Profile heat sink?
Extrusion 002
Key points of profile heat sinks design
The principle of extrusion molding
Extrusion 003
Characteristics of aluminum extruded heat sinks
Extrusion 004
Extrusion 005
Economic considerations
Extrusion 006
Extrusion 007
  • Type

  • Extrusion Heat sink

  • Process

  • Extrusion

  • Extra Process

  • Extrusion+CNC Machining

  • Material

  • AL 6061、AL6063

  • Size/Color

  • customized

  • Surface  treatment

  • Sandblasting, Wire Drawing, Painting, Electroplating, Anodizing

  • Quality Control

  • full inspection

  • Application

  • Mechanical Equipment、Source、Electronic Devices

  • OEM

  • Accept


Profile is a material used for heat conduction and dissipation. It is made into the desired shape through extrusion technology, after further processing, such as cutting, precision machining, and surface treatment, finally made into a profile heat sink. Aluminum profile heat sinks are widely used in various industries for thermal and heat dissipation scenarios.


  • Type

  • Copper Tube cold plates

  • Process

  • buried pipe, welded pipe, double-sided clamp pipe

  • Extra Process

  • Brazing+CNC Machining

  • Material

  • AL 6061、AL6063、Cu1100

  • Size/Color

  • customized

  • Surface  treatment

  • Sandblasting, Wire Drawing, Painting, Electroplating, Anodizing

  • Quality Control

  • full inspection

  • Application

  • Automobile、Source、Communication

  • OEM

  • Accept


ü The appearance of the heat sink should consider aesthetics and space utilization efficiency.

ü The internal flow channels of the heat sink should be as simple as possible to ensure smooth flow of the cooling medium.

ü Design the shape and size of the heat sink according to actual needs to increase the heat transfer area.

ü A reasonable support structure should be designed at the bottom of the heat sink to improve its stability and structural strength.


Extrusion molding is the process of applying external force to a metal ingot stored in a container (extrusion cylinder), causing it to flow out of a specific mold hole, in order to obtain the desired cross-sectional shape and size of the profile.


  • Type

  • Copper Tube cold plates

  • Process

  • buried pipe, welded pipe, double-sided clamp pipe

  • Extra Process

  • Brazing+CNC Machining

  • Material

  • AL 6061、AL6063、Cu1100

  • Size/Color

  • customized

  • Surface  treatment

  • Sandblasting, Wire Drawing, Painting, Electroplating, Anodizing

  • Quality Control

  • full inspection

  • Application

  • Automobile、Source、Communication

  • OEM

  • Accept


ü Good thermal conductivity

Six series aluminum profiles have good thermal conductivity, with a thermal conductivity coefficient between 120-165 W/(m · K); Integrated molding, with fins that do not require additional welding processing and no additional thermal resistance; The structure can be flexibly designed to improve the heat dissipation performance of the radiator.

ü High durability

The aluminum extruded heat sink is made of high-purity aluminum material and has undergone processes such as anodizing treatment on the surface, which can effectively prevent oxidation corrosion and loss, and has a long service life.

ü Lightweight

Aluminum extruded heat sink is lightweight and compact, making it more suitable for lightweight electronic products and mechanical equipment.


  • Type

  • Copper Tube cold plates

  • Process

  • buried pipe, welded pipe, double-sided clamp pipe

  • Extra Process

  • Brazing+CNC Machining

  • Material

  • AL 6061、AL6063、Cu1100

  • Size/Color

  • customized

  • Surface  treatment

  • Sandblasting, Wire Drawing, Painting, Electroplating, Anodizing

  • Quality Control

  • full inspection

  • Application

  • Automobile、Source、Communication

  • OEM

  • Accept


  • Type

  • Copper Tube cold plates

  • Process

  • buried pipe, welded pipe, double-sided clamp pipe

  • Extra Process

  • Brazing+CNC Machining

  • Material

  • AL 6061、AL6063、Cu1100

  • Size/Color

  • customized

  • Surface  treatment

  • Sandblasting, Wire Drawing, Painting, Electroplating, Anodizing

  • Quality Control

  • full inspection

  • Application

  • Automobile、Source、Communication

  • OEM

  • Accept


ü Extrusion is the most operational and cost-effective process for producing plate fins and cross cut heat sink.

ü The six series aluminum material used for extrusion has good mechanical properties and superior thermal conductivity.

ü The tooling and unit price are the lowest among all large-scale production processes.

ü Walmate ready to provide professional and more economical opinions based on your specific application scenario and demand scale.


  • Type

  • Copper Tube cold plates

  • Process

  • buried pipe, welded pipe, double-sided clamp pipe

  • Extra Process

  • Brazing+CNC Machining

  • Material

  • AL 6061、AL6063、Cu1100

  • Size/Color

  • customized

  • Surface  treatment

  • Sandblasting, Wire Drawing, Painting, Electroplating, Anodizing

  • Quality Control

  • full inspection

  • Application

  • Automobile、Source、Communication

  • OEM

  • Accept


  • Type

  • Copper Tube cold plates

  • Process

  • buried pipe, welded pipe, double-sided clamp pipe

  • Extra Process

  • Brazing+CNC Machining

  • Material

  • AL 6061、AL6063、Cu1100

  • Size/Color

  • customized

  • Surface  treatment

  • Sandblasting, Wire Drawing, Painting, Electroplating, Anodizing

  • Quality Control

  • full inspection

  • Application

  • Automobile、Source、Communication

  • OEM

  • Accept


Skiving Process
Skived Fin 001
What is skived Fin heat sink?
Skived Fin 002
The principle of Skived fin forming
Skived Fin 003
Characteristics of Skived fin heat sink
Skived Fin 004
Key points of profile heat sinks design
Skived Fin 005
Economic considerations
Skived Fin 006
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