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Our anodized aluminum extruded heat sinks deliver effective thermal management for industrial electronic applications. Produced in a 50,000 sqm manufacturing facility with IATF 16949 compliance, each heat sink is manufactured with precision extrusion technology and protective anodization that increases corrosion resistance by 80%. Over 300 skilled technicians oversee production, with all processes following standardized quality control protocols to deliver consistent output for manufacturers in telecom, power supply, and automation equipment sectors seeking stable cooling performance.
These heat sinks are constructed from 6063, 6061 or 6005 aluminum alloys from the 6000 series, which have inherent thermal conductivity of 190-230 W/mK. The extrusion process creates a dense fin array that maximizes surface area for heat dissipation. Fin designs are calibrated for natural or forced convection, reducing component temperatures by up to 30°C in high-load scenarios. The aluminum extrusion forms a monolithic structure with a density of 2.7g/cm³, combining structural integrity with low weight for use in portable and airborne electronic systems.
Each heat sink undergoes a two-step anodizing process: first a sulfuric acid bath for surface preparation, followed by a sealing treatment to prevent oxidation. This process creates a hard anodized layer with a thickness of 5-25μm. The anodized finish enhances corrosion resistance and improves thermal emissivity, supporting consistent heat transfer from high-power components. The surface layer resists salt spray, UV radiation, and chemical spills, extending service life in outdoor or industrial settings. Marine-grade anodizing options provide over 1,000 hours of salt spray resistance, meeting ASTM B117 standards for coastal and offshore applications.
The extrusion process supports complex, uniform cross-sections that fit into compact electronic enclosures with limited installation space. Compared to CNC-machined or forged heat sinks, extrusion supports high-volume production with consistent dimensional accuracy, offering a cost-effective solution for large-scale commercial procurement. The process allows for adjustable fin heights, pitches, and overall lengths, with options for integrated mounting holes or compatibility with thermal interface materials.
These heat sinks are deployed across multiple industrial sectors to address varying heat dissipation requirements. For general electronics cooling, they are used in CPUs, GPUs, power amplifiers, and LED drivers to maintain stable operating temperatures and prevent overheating-related performance drops. In telecommunications, they are installed in 5G base stations, routers, and network switches to support uninterrupted operation in high-temperature data center environments. For automotive electronics, they are applied to cool onboard computers, ADAS systems, and electric vehicle battery management units. In renewable energy systems, they dissipate heat from solar inverters and wind turbine controllers in harsh outdoor operating environments. Additional use cases include motor housings and industrial automation equipment, with custom shapes available to match specific device designs.
We support flexible customization to match specific project requirements. Heat sinks are available in round, square, and custom profile shapes, with adjustable fin geometries and overall dimensions to fit unique device layouts. Secondary processing services include bending, unrolling, welding, and punching to meet precise design specifications. Milling services are also available for additional surface refinement and feature fabrication. The minimum order quantity for both standard and custom profiles is 300KG, suitable for batch production for enterprise customers and commercial procurement teams.
Parameter | Value |
Alloy Grade | 6000 series |
Tolerance | ±1% |
Temper | T3-T8 |
Application | Motor housings |
Shape | Custom (Round, Square, Profiles) |
Processing Services | Bending, Unrolling, Welding, Punching |
Material | Aluminum (6063, 6061, 6005) |
Surface Treatment | Anodized, Milling |
Certification | ASTM, AISI, JIS, DIN, GB |
Minimum Order Quantity | 300KG |
Application Field | Industrial |
No. The anodizing process improves thermal emissivity without reducing the aluminum's inherent thermal conductivity of 190-230 W/mK. The base material’s thermal performance remains fully intact after the surface treatment process.
Yes, they are compatible with both air and liquid cooling setups. For liquid cooling applications, additional sealing for the anodized surface may be required based on specific system design and operating conditions.
We can produce fin pitches as low as 1.2mm for ultra-dense cooling solutions. Exact availability depends on the complexity of the specific extrusion profile design.
Our marine-grade anodizing provides over 1,000 hours of salt spray resistance, meeting ASTM B117 standards for coastal and offshore use cases.
For project-specific requirements or custom profile design consultation, you can contact our technical team to discuss detailed specifications. We support sample evaluation and customized batch production planning for commercial users across different industrial sectors.
