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Extruded Heat Sink

Extruded Heat Sink

  • Cost-Effective Mass Production: Extruded heat sinks offer the lowest tooling and unit costs among mass production methods, making them ideal for high-volume runs.
  • Excellent Thermal Performance: Made from aluminum alloy 6063 (thermal conductivity ~209 W/m-K), they provide efficient heat dissipation, especially under forced convection.
  • Design Versatility: Custom profiles can be created by extrusion, and length can be varied without extra tooling.
  • Lightweight with Good Surface Finish: Extruded aluminum offers a clean, aesthetically pleasing surface plus low density, reducing mechanical stress on assemblies.
  • Consistent Multi-Directional Performance: Cross-cut extrusions maintain uniform thermal characteristics in multiple directions.
  • Easy Secondary Machining: Cutting, drilling, or machining features into extruded profiles is straightforward and cost-effective.
  • Broad Shape Availability: Standard shapes like straight-fin, slant-fin, pin-fin are readily available; custom dies enable specialized geometries.
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Extruded Heat Sink Product

Extruded Copper Aluminum Heat Sink
Extruded Copper Aluminum Heat Sink
Custom Profile Aluminum Heat Sink
Custom Profile Aluminum Heat Sink
LED Extrusion Cooling Heat Sink
LED Extrusion Cooling Heat Sink
Industrial CNC Aluminum Heat Sink
Industrial CNC Aluminum Heat Sink
Custom Extruded Aluminum Sink
Custom Extruded Aluminum Sink
Aluminum Extrusion Peltier Sink
Aluminum Extrusion Peltier Sink
Toothed Comb Type Heat Sink
Toothed Comb Type Heat Sink
Song Hong Aluminum Heat Sink
Song Hong Aluminum Heat Sink

Customization Capabilities

We offer full custom extrusion services for heat sinks, from profile design to secondary machining, tailored to your thermal management needs.

  • Alloy Options: 6000-series aluminiums such as 6063 (for intricate fins) and 6061 (higher strength).
  • Profile Shape: Straight-fin, slant-fin, pin-fin, cross-cut, and fully custom geometries.
  • Length Customization: Variable cut-to-length extrusion without new tooling.
  • Surface Finish: Anodizing, plating, Alodine conversion, or custom coatings.
  • Secondary Machining: Features like mounting holes, channels, or cut-outs via CNC, drilling, sawing.
  • Attachment Methods: Adhesive tapes, clips, Z-clips, or mechanical fixing options.
  • Size Range: Heights from ~2 mm up to hundreds of mm; widths and fin counts per design.

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Why Partner with Sinoextrud for Your Extruded Heat Sink Needs?

We are more than just an aluminum profile supplier — we’re your efficient, reliable, long-term partner.
With Us, You Get:Faster turnaround,Stable quality,Competitive pricing,End-to-end support.

Large-Scale Manufacturing:Our factory spans 1,000 mu (about 667,000 m²), with full in-house capabilities from aluminum smelting and billet casting to extrusion, surface treatment, and CNC machining.

One-Stop Solution:With 43 extrusion lines (500–5500 tons) and a dedicated mold partner, we provide fast production, custom profiles, and integrated services to simplify your supply chain.

Quality You Can Trust:Strict quality control ensures consistent dimensions, strength, and finish, reducing your risk and increasing reliability.

Fast Delivery & Cost Efficiency:Self-produced billets, in-house processing, and batch production mean faster lead times and lower overall costs.

Advanced Finishing Options:Anodizing and both vertical and horizontal powder coating lines deliver durable, high-quality surface finishes tailored to your product needs.

Factory Overview
Furnace workshop
Aluminum bar production
Mold Warehouse
500-5500 Tons Extruder
Spraying workshop
Anodizing workshop
Deep Processing Workshop
CNC Machining Workshop
Finished goods warehouse
Finished goods warehouse
Finished goods warehouse
Export warehouse
5500 Ton Extrusion Press
Aluminum extrusion press
Large Aluminum Extrusion Line
Aluminum extrusion production line
Extrusion workshop
IATF 16949 Certification
TUV
Finished goods warehouse
Export warehouse

-Standard Packing Option-

* Long bar length profiles 3.0-6.0 meters*
Protective Film
Shrink Sleeve
Brown Paper
Craft Paper
* Short bar length profiles 0.3-3.0 meters*
EPE Foam
Poly Bag
Wooden Crate
Wooden Case

-Loading & Shipment-

Pallet Loading
Bulk Loading
LCL Loading
Expedited Express

STEPS

How to work with us

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  • Quote & Estimation

    Begin with a thorough evaluation of the design's feasibility, followed by a prompt, detailed estimate.

  • Sample & Test

    Creating a prototype to assess dimensions and ensure the mold's precision aligns with the requirements.

  • Extrude & Finish

    Producing the aluminum profile with pinpoint accuracy to the given specifications and applying desired finishes.

  • Pack & Deliver

    Tailored packaging for the extruded profiles, ensuring safe and efficient loading for prompt delivery.

Extruded Heat Sink-FAQ's

What materials are commonly used for extruded heat sinks?
Aluminum alloys like 6063 and 6061 are preferred for their thermal performance, extrudability, and structural balance.
Why choose extrusion over stamping or die-casting?
Extrusion offers lower tooling cost, faster production, better surface finish and easier customizability.
How thin or tall can fins be?
Extrusions can support high aspect ratios; dimensions depend on die design and practical manufacturability.
Can extrusion profiles be further machined?
Yes-secondary machining like cutting, drilling or milling is simple and economical.
Are there any standard fin types available?
Yes-straight-fin, slant-fin, pin-fin, and cross-cut are standard; custom designs are also feasible.
What surface treatments can be applied?
Options include anodizing, chromating, Alodine or custom coating to enhance corrosion resistance and aesthetics.
What industries use these heat sinks?
Widely used in consumer electronics, power electronics, LED lighting, renewable energy inverters and industrial automation.
What are tooling costs like?
Extrusion tooling is a one-time cost; per-unit cost drops significantly with higher volume, offering excellent ROI.

Products You May Looking for

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Sinoextrud: Your Extruded Heat Sink Manufacturer

Extruded heat sinks are manufactured by pushing heated aluminum through a shaped die to create profiles with optimized fins for heat dissipation, offering a balance of performance, cost, and production efficiency.


Utilizing aluminum alloys like 6063 and 6061, these heat sinks deliver excellent thermal conductivity, are lightweight, and feature clean surface finishes suitable for various market applications.


They excel in high-volume and custom applications thanks to low tooling costs, adaptable lengths, and ease of machining for mounting or post-production features.


Available in common forms-such as straight-fin, slant-fin, and pin-fin-or fully custom designs, extruded heat sinks meet diverse cooling needs across electronics, LED, industrial, and renewable energy sectors.


With reliable manufacturing, scalable tooling economics, and flexible finishing options, our extruded heat sink solutions offer robust, cost-effective thermal management for global B2B customers.


Extruded Heat Sink : The Ultimate FAQ Guide

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