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Round Heat Sink
- Lightweight Aluminum Alloy Construction: Made from aluminum alloy, the round heat sink offers excellent thermal conductivity while minimizing weight and cost
- Omni-directional Cooling Efficiency: Its round design enables effective heat dissipation regardless of airflow direction, ideal for multi-orientation applications
- Customizable Dimensions: Available in a wide range of sizes-from small pin-fin variants to large extruded profiles-tailored to client requirements
- High-Performance Thermal Management: Engineered for superior heat absorption and dissipation, enhancing component reliability under thermal stress
- Versatile Fin Structures: Supports multiple structures-including pin-fin, extruded radial, and cast forms-to suit diverse performance needs
- Low MOQ with Fast Lead Times: Sample orders may ship from just one piece, and expedited deliveries are possible within approximately 5 days
- ISO-certified Quality Assurance: Manufactured under ISO-compliant processes to ensure consistent quality across design, extrusion, and surface finishing
Round Heat Sink Product
Customization Capabilities
We deliver tailored round heat sinks engineered to your specifications, integrating design, material, and finish options for optimized thermal performance.
- Material: Aluminum alloy (e.g., 6063, 6061, 1050A), copper optional
- Shape: Round, with options for pin-fin, extruded radial, machined cylindrical
- Diameter: Customizable-from small (tens of mm) up to over 500 mm
- Thickness/Fin Height: Adjustable per thermal design needs
- Surface Finish: Mill, anodized, powder-coated (various RAL colors), wood-grain, etc.
- CNC Machining Features: Cut-outs, through-holes, slots, precise machining to tight tolerances
- MOQ and Lead Time: Low MOQ (even one piece sample), expedited fulfillment in about 5 days or standard 15-20 days
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Why Partner with Sinoextrud for Your Round 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
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.
Round Heat Sink-FAQ's
What size range does the round heat sink support?
Diameter from small (tens of mm) up to over 500 mm, with fin heights adjustable per design requirements
What material options are available?
Typically aluminum alloy (e.g. 6063, 6061, 1050A); copper available when needed for higher conductivity
Can you customize the fin structure or shape?
Yes, supports pin-fin, extruded radial, machined cylindrical types, tailored to thermal performance needs
What surface treatments do you offer?
Mill finish, anodized, powder coating (including multiple RAL colors), wood-grain effect, etc.
What is the minimum order quantity and lead time?
Sample orders can start from one piece; urgent orders may ship in about 5 days, standard production within 15-20 days
What quality certifications and inspection processes are in place?
ISO-certified manufacturing with rigorous quality control across design, extrusion, and finishing processes
Can you perform extra machining like holes or slots in the heat sink?
Yes, we offer precise CNC machining-cut-outs, through-holes, slots, and complex features to your specification
Do you provide design and engineering support?
Our engineering team guides from concept to manufacturable solution, ensuring thermal and mechanical design optimization
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Sinoextrud: Your Round Heat Sink Manufacturer
Round heat sinks deliver efficient and lightweight thermal management, combining aluminum alloy construction with customizable fin structures for optimal heat dissipation. Their omni-directional design ensures stable performance across varying airflow patterns, making them versatile for diverse applications.
Ideal in sectors like LED lighting, power supplies, inverters, and industrial electronics, these round heat sinks excel in scenarios demanding compact yet effective cooling solutions. They help extend component lifespan and enhance system reliability under thermal stress.
Surface treatments such as anodizing, powder-coating in various RAL shades, or decorative wood-grain finishes not only boost corrosion resistance, but also add aesthetic value to the component assembly.
We also enable deep processing services-CNC milling, drilling, cut-outs, and precision slots-that allow integration of mechanical and thermal features in a single part, reducing assembly complexity.
With ISO-certified quality assurance, low MOQ, sample availability, and responsive lead times, our comprehensive custom manufacturing capabilities ensure you receive high-precision and reliable round heat sinks tailored for global industrial standards.