Bionic Fin Extruded Aluminum Sunflower Heat Sink
Custom bionic fin aluminum sunflower heat sinks for high-power LED high bay lights, floodlights, and architectural lighting. Optimized airflow, premium design, fully customizable. Request a quote now.
- Product Introduction
High-Efficiency Natural Convection Thermal Solution for Premium LED Lighting
This bionic fin extruded aluminum sunflower heat sink is a premium thermal management solution designed for high-performance LED lighting fixtures where both thermal efficiency and product aesthetics are key. Featuring an innovative feather-shaped radial fin profile, this heat sink combines optimized airflow dynamics with enhanced structural rigidity, delivering superior natural convection cooling while offering a unique, market-differentiating appearance.
Manufactured from high-grade 6063-T5 aluminum alloy via precision one-piece extrusion, this heat sink eliminates thermal interface resistance, ensuring fast, uniform heat transfer from the central hub to every fin. It is ideal for high-power LED high bay lights, stadium floodlights, architectural lighting, and other premium-grade lighting applications. We offer full customization for diameter, height, mounting features, and surface treatments to match your exact product design and branding requirements.
Product Specification
| Parameter | Details |
| Material | 6063-T5 Aluminum Alloy (standard); optional 6061-T6 for enhanced strength |
| Thermal Conductivity | 205-210 W/m·K |
| Fin Design | Bionic feather-shaped radial fins with reinforcing ribs and curved geometry |
| Available Dimensions | Custom diameters: 80mm-250mm; heights: 20mm-200mm (custom available) |
| Central Hub | Solid, flat mounting hub with optional pre-drilled LED module mounting holes |
| Mounting Features | Optional perimeter mounting lugs, accessory slots, and threaded inserts |
| Surface Treatments | Mill finish, clear/black/colored anodizing, chromate conversion, powder coating |
| Tolerance | ±0.2mm (overall dimensions); ±0.1mm (mounting hole positions) |
| Custom Services | Cut-to-length, CNC machining, deburring, custom surface treatment |
Product Features
Biomimetic streamline fin design
Its fin is not the ordinary straight type but features a special bionic leaf/mosaic design with curved outer edges and branching reinforcing ribs, resembling blooming petals or leaves. This design is fluid-optimized:
The curved fin can guide the hot air to flow upward more smoothly, reducing airflow resistance and enhancing natural convection efficiency;
The branch ribs on the fin significantly enhance the fin's rigidity without increasing thickness, preventing deformation of thin fins while also additionally expanding the heat dissipation surface area.
One-piece extrusion molding process
It is identical to a conventional sunflower radiator, formed in a single piece through aluminum extrusion. Made from 6063-T5 aluminum alloy with a thermal conductivity of approximately 205 W/m・K, the base and all fins are seamlessly integrated, resulting in extremely low thermal resistance. Heat is rapidly conducted from the center to each fin.
This intricate bionic cross-section requires specially designed extrusion molds, presenting higher technical barriers than conventional straight-fin heat sinks and better showcasing the factory's customization capabilities.
The reinforced central base and mounting position
The center features a robust circular base designed to accommodate the LED light source module. Both the thickness and surface area of the base are optimized to ensure even heat dissipation. Some fin roots also include pre-drilled mounting holes or slots for securing the lamp housing or accessories, meeting the installation requirements of integrated LED fixtures.
Contact our thermal engineering team today to discuss your custom bionic fin heat sink requirements, and let us provide a tailored solution for your premium LED lighting application.
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