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Custom Heat Sink

Custom Heat Sink

  • High Thermal Efficiency: Custom heat sinks are engineered with optimized fin geometries and materials to maximize heat dissipation.
  • Tailored Profile Design: From straight fins to pin-fin arrays, we construct profiles that fit your precise thermal layout and airflow environment.
  • Lightweight and Cost-Effective: Manufactured from aluminum, offering thermal performance with reduced weight and lower cost compared to copper alternatives.
  • Manufacturing Flexibility: Supports extrusion-based production with precision tooling for complex and repeatable custom shapes.
  • Scalable Production: Ideal for both single-prototype runs and larger production batches with consistent geometry and quality.
  • Design Support Included: Engineering consultation available to assist with thermal design, surface area optimization, and manufacturability.
  • Versatile Surface Finishes: Options such as anodizing or powder coating are available to enhance corrosion resistance and aesthetics.
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Custom Heat Sink Product

Black Anodized Aluminum Straight Fin Heat Sink
Black Anodized Aluminum Straight Fin Heat Sink
Custom Aluminum Alloy LED Pin-Fin Heat Sink
Custom Aluminum Alloy LED Pin-Fin Heat Sink
Sunflower Style Black Aluminum Heat Sink Profile
Sunflower Style Black Aluminum Heat Sink Profile
Copper Tube Embedded CNC Water Cooling Plate
Copper Tube Embedded CNC Water Cooling Plate
Large Cast Aluminum Heat Sink for Semiconductors
Large Cast Aluminum Heat Sink for Semiconductors
High Density Tooth Heat Sink from CNC Aluminum
High Density Tooth Heat Sink from CNC Aluminum
F Type Radiator Heat Sink Custom Size Available
F Type Radiator Heat Sink Custom Size Available
Circular Radiator Heat Sink for EV Cooling
Circular Radiator Heat Sink for EV Cooling

Customization Capabilities

We deliver fully customized heat sink solutions adapted to your device’s thermal budget, space constraints, and mechanical requirements.

  • Profile Geometry: Straight-fin, pin-fin, folded-fin, or custom fin arrangements configured for optimal airflow.
  • Alloy Selection: Commonly use 6061, 6063, or 1050 alloys; alternative grades available for specific thermal or mechanical needs.
  • Dimensional Precision: Tight extrusion tolerance ensures consistent thermal performance and proper fit in assemblies.
  • Surface Treatment: Options include anodized, painted, or raw finishes tailored for environmental resilience or aesthetic preference.
  • Length and Batch Configurations: Available as continuous extrusions, custom-cut segments, or volume-production runs.
  • Prototyping Services: Sample parts can be produced for airflow and thermal validation before final tooling.
  • DFM Integration: We offer CAD-based design feedback to ensure toolability, thermal efficiency, and cost-effective manufacturing.

Got a design, sketch, or idea? Share it with us for fast feedback

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Why Partner with Sinoextrud for Your Custom 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

Start A Project today
  • 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.

Custom Heat Sink-FAQ's

What materials are used for custom heat sinks?
We typically use aluminum alloys such as 6061, 6063, or 1050 for their thermal performance and extrusion compatibility.
How do designs optimize thermal performance?
Custom profiles are engineered to maximize surface area and enhance airflow, cooling efficiency, and thermal transfer.
Can you supply prototypes before production?
Yes-we offer prototype samples to test thermal behavior and ensure fit before moving into full production.
Are surface finishing options available?
Yes-options include anodizing, powder coating, or raw finishes to match environmental and aesthetic needs.
What production volumes are supported?
We accommodate both one-off prototypes and large batch runs, ensuring consistent geometry and thermal performance.
Do you provide thermal design support?
Yes-we offer design-for-manufacturability (DFM) guidance and CAD/CAM collaboration to validate performance and cost optimization.
Which profile types are supported?
We support straight fin, pin fin, folded fin, and specialized custom geometries designed for challenging thermal and spatial constraints.
Why choose aluminum for heat sinks over copper?
Aluminum delivers a superior combination of thermal performance, extrusion feasibility, lightweight structure, and cost-efficiency.

Products You May Looking for

Still have questions? Contact us — we’ll reply within 12 hours.

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Sinoextrud: Your Custom Heat Sink Manufacturer

Custom Heat Sink solutions provide precise thermal management tailored to your device’s heat output, airflow environment, and space limitations. By optimizing fin design and material choice, they enhance cooling while minimizing weight and cost.


Our component manufacturing process is flexible-whether you require prototype evaluation or full-scale production, we guarantee consistency in profile geometry, performance, and quality.


Engineering support including DFM and CAD review ensures that your heat sink design is manufacturable, thermally effective, and production-efficient.


Available surface treatments-such as anodizing or coating-enhance durability and aesthetic compatibility across diverse application environments.


Whether for electronics, power modules, LED systems, or industrial machinery, our custom heat sinks deliver engineered thermal control with scalable production and efficient delivery.


Custom Heat Sink : The Ultimate FAQ Guide

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