China Custom Heat Sink Manufacturers Suppliers - OEM Heat Sink

↵

PowerWinx: Your Professional Heat Sink Supplier！

PowerWinx was established in 2009 as a professional heat sink factory, manufacturer, supplier, and wholesale provider. We specialize in thermal management products including heat sinks and cold plates, offering both bulk orders and customized solutions.

15+ Years Experience

Over 15 years of expertise in thermal management manufacturing and solutions.

Advanced Equipment

Equipped with CNC, die-casting, skiving, and stamping machines.

One-Stop Service

Full support from design to production and delivery.

OEM/ODM Customization

We provide flexible OEM and ODM services to develop customized thermal solutions based on specific customer requirements.

CNC Machined Copper Heat Sink
A CNC-machined copper heat sink is a thermal management component made of copper using CNC machining technology.
read more
CNC Machined Aluminum Heat Sink
A CNC machined aluminum heat sink is a heat management component made of aluminum alloy and processed by CNC machining.
read more
Aluminum Die Cast LED Light Heat Sink
Aluminum die-cast LED light heat sink is a heat dissipation structure made of aluminum alloy through a high-pressure die-casting process.
read more
Die Cast Aluminum Heat Sink
Die-cast aluminum heat sinks are heat dissipation components that conduct heat generated by high-power electronic devices or industrial equipment from the aluminum substrate to the fins and release the heat through air convection.
read more
Copper Pin Fin Heat Sink
The Copper Pin Fin Heat Sink consists of a high thermal conductivity copper substrate and vertically arranged pin-shaped copper fins, which increase the heat dissipation surface area through the pin-shaped structure.
read more
Aluminum Pin Fin Heat Sink
An aluminum pin fin heat sink is a thermal management component made of 3003 aluminum alloy.
read more
Copper Cold Forged Heat Sink
Copper Cold Forged Heat Sink is a heat dissipation component formed by pressing high-purity copper at room temperature using a cold forging process.
read more
Aluminum Cold Forged Heat Sink
The Aluminum Cold Forged Heat Sink is made of high-purity aluminum through a cold forging process and is widely used for heat dissipation in high-power electronic devices such as LED lighting, power modules, automotive electronics,
read more
Aluminum Stacked Fin Heat Sink
Aluminum stacked fin heat sink is a thermal management component formed by cutting, shaping, stacking and fixing multiple thin aluminum sheets (AL 1100) to a base plate.
read more
Copper Stacked Fin Heat Sink
Copper stacked fin heat sinks are formed by cutting, stacking, and fixing C1100 pure copper sheets to a base plate.
read more
Stainless Steel Folded Fin Heat Sink
The Stainless Steel Folded Fin Heat Sink is a high-strength folded fin heat sink made of 304/316 stainless steel, mainly used in high heat density heat dissipation scenarios such as power electronics, communication equipment, industrial
read more
Copper Folded Fin Heat Sink
The Copper Folded Fin Heat Sink is constructed using high thermal conductivity copper and a folded fin structure.
read more

First 12 3 Last

Brief Introduction To Heat Sink

A heat sink is a thermal management device designed to regulate temperature and enhance equipment stability; it is suitable for heat management applications involving electronic components, power modules, and industrial equipment.

Technical Parameters

Category	Details
Product Name	Heat Sink
Temper	T3 - T8
Tolerance	±0.02 mm
Finishing	Degreasing, Anodizing, Sand Blasting, Painting, Chromating, Laser Marking
Testing Equipment	Measurement instruments, Projector, CMM, Altimeter, Micrometer, Thread Gauges, Calipers, Pin Gauges, etc.
Inspection	100% QC; inspection available for every batch
Drawing	3D: .step / .stp 2D: .dxf / .dwg / .pdf

Features of Heat Sink

High Thermal Conductivity
Heat Sink is made of 6063 aluminum alloy or pure copper with thermal conductivity of 200–400 W/m·K, enabling rapid heat transfer to the fins and reducing core temperature by about 15–30%.

High-Precision Fit
CNC machined with ±0.02 mm tolerance for tight contact, reducing thermal resistance and improving stability.

Corrosion Resistance & Long Service Life
Anodized surface forms a protective layer, resisting oxidation and lasting 5–10 years in normal use.

Quality Control

01/

Raw Material Inspection
Prior to production, 6063 aluminum alloy or copper materials undergo inspection for chemical composition and thermal conductivity to ensure material purity meets standards and satisfies thermal dissipation requirements.

02/

Dimensional Inspection
Following CNC machining, critical dimensional tolerances are controlled within ±0.02mm; calipers and CMMs are utilized to verify precision and ensure accurate fit.

03/

Fin Structure Inspection
Fin thickness and spacing are inspected to guarantee uniform arrangement, thereby enhancing airflow and thermal dissipation efficiency.

04/

Surface Finish Inspection
Anodized or plated surfaces are inspected for uniformity to ensure surface integrity and prevent peeling or detachment.

05/

Assembly Flatness Inspection
Base flatness is controlled within 0.05mm to ensure intimate contact with the heat source, thereby minimizing thermal resistance.

06/

Finished Product Quality Inspection
Prior to shipment, the appearance and structural integrity of the finished product are inspected to ensure freedom from burrs or deformation, and to verify the accuracy of mounting hole positions.

Customization Capabilities

Category	Details
Dimensions & Structure	Length, width, height, and overall structural layout can be customized according to equipment space and power requirements.
Material Configuration	Aluminum alloy, copper, or composite material combinations are available.
Fin Design	Fin thickness, spacing, and arrangement can be adjusted.
Surface Treatment	Anodizing, coating, or plating treatments are available.
Mounting Method	Can be designed with screw mounting, clip-on structures, or thermal pad installation.

After-Sales Service

Technical Selection Support

Provide selection guidance based on power, space, and thermal needs to define material, size, and structure.

Drawing Confirmation Service

Provide 3D/2D drawing review before production to ensure dimensions and installation match requirements.

Sample Validation Support

Offer samples for assembly and fit verification before mass production.

Issue Feedback Handling

Provide optimization or replacement solutions for size or installation issues during use.

Certificates

We have obtained ISO9001 and IATF16949 certifications, ensuring consistent quality and reliable manufacturing across our products.

FAQ

Q: What is the heat dissipation principle of a heat sink?

A: A heat sink transfers heat from a heat source to the surface of its fins through thermal conduction; it then dissipates this heat into the surrounding environment via air convection and radiation, thereby lowering the temperature.

Q: In which fields are heat sinks primarily used?

A: They are widely utilized in equipment requiring thermal management—such as electronic power supplies, LED lighting, communication devices, computer chips, and industrial control systems.

Q: How is a heat sink installed?

A: It is typically secured to the heat-generating component using screws, clips, or thermal interface materials to ensure optimal contact and stable thermal conduction.

Q: Is routine maintenance required?

A: During long-term operation, it is necessary to clean accumulated dust from the surface to ensure unimpeded airflow and maintain consistent heat dissipation performance.

Q: How should it be cleaned?

A: Compressed air or a soft brush can be used to remove dust from between the fins, keeping the airflow channels clear to preserve heat dissipation efficiency.

Q: Is the installation process complex?

A: The installation method is straightforward and can typically be accomplished using standard mounting hardware or thermal interface materials.

As one of the most professional heat sink manufacturers and suppliers in China, we offer a wide range of products with superior quality. We warmly welcome you to buy bulk advanced heat sink from our factory. If you have any enquiry about custom service and OEM service, please feel free to email us.