Industry-Verified Manufacturing Data (2026)

Aluminum Heat Sink

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Aluminum Heat Sink used in the Aluminum Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Aluminum Heat Sink is characterized by the integration of Base Plate and Cooling Fins. In industrial production environments, manufacturers listed on CNFX commonly emphasize aluminum alloy 6061 construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Custom aluminum component for thermal management in electronic assemblies

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Product Specifications

Technical details and manufacturing context for Aluminum Heat Sink

Definition
A custom-manufactured aluminum component designed to dissipate heat from electronic devices through conduction and convection. These parts are precision-machined or extruded to specific geometries that maximize surface area for efficient heat transfer. They are critical in applications requiring thermal management of processors, LEDs, power electronics, and other heat-generating components. Custom aluminum heat sinks are manufactured to exact customer specifications including dimensions, fin patterns, mounting holes, and surface finishes.
Working Principle
Conducts heat from source through aluminum body, then dissipates it via extended surface area (fins) through convection
Common Materials
aluminum alloy 6061, aluminum alloy 6063, thermal interface material
Technical Parameters
  • Thickness of mounting surface (mm) Standard Spec
  • Thermal resistance from base to ambient (°C/W) Standard Spec
Components / BOM
  • Base Plate
    Thermal interface with heat source
    Material: Aluminum Alloy
  • Cooling Fins
    Increase surface area for heat dissipation
    Material: Aluminum Alloy
  • Mounting Holes
    Secure heat sink to assembly
    Material: Aluminum Alloy
Engineering Reasoning
0-150°C
Aluminum melting point at 660.32°C
Design Rationale: Thermal conductivity degradation beyond 200°C due to increased phonon scattering and lattice vibration amplitude exceeding 0.1nm, reducing conductivity from 237 W/m·K to below 100 W/m·K
Risk Mitigation (FMEA)
Trigger Thermal interface material dry-out at 125°C for 1000+ hours
Mode: Thermal resistance increase from 0.5°C/W to 2.5°C/W
Strategy: Phase-change thermal interface material with melting point at 65°C and thermal conductivity of 8.5 W/m·K
Trigger Fin deformation under 50kPa pressure at 180°C
Mode: Airflow reduction from 2.5 m³/min to 0.8 m³/min
Strategy: 6061-T6 aluminum alloy with yield strength of 276 MPa and thermal expansion coefficient of 23.6 μm/m·°C

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Aluminum Heat Sink.

aluminum heatsink aluminium heat sink custom aluminum heat sink for electronics 6061 aluminum alloy heat sink thermal management aluminum component precision aluminum cooling fins custom mounting hole pattern heat sink

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Cooling System (Fan & Heat Sinks)
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
flow rate: 0.5 to 5 L/min
temperature: -40°C to 150°C
slurry concentration: Not applicable (solid component)
Media Compatibility
✓ Air (natural convection) ✓ Air (forced convection) ✓ Thermal interface materials (TIMs) like thermal paste/pads
Unsuitable: Corrosive chemical environments (e.g., acids, strong alkalis)
Sizing Data Required
  • Heat load (W)
  • Maximum allowable component temperature (°C)
  • Available space/volume constraints (mm³)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Repeated thermal cycling causing expansion/contraction stresses, leading to crack initiation at stress concentrators like fin bases or mounting points
Fouling and reduced thermal performance
Cause: Accumulation of dust, debris, or oxidation layers on fin surfaces, increasing thermal resistance and reducing heat dissipation efficiency
Maintenance Indicators
  • Visible discoloration or darkening of aluminum surface indicating excessive oxidation or overheating
  • Audible rattling or vibration noises suggesting loose mounting or structural damage to fins
Engineering Tips
  • Implement regular cleaning schedule using compressed air or non-corrosive solvents to maintain fin surface cleanliness and thermal efficiency
  • Apply protective coatings or anodization to aluminum surfaces to reduce oxidation and improve corrosion resistance in harsh environments

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ASTM B209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate EN 14024 - Thermal performance of heat sinks
Manufacturing Precision
  • Flatness: ≤0.1mm per 100mm length
  • Fin thickness: ±0.05mm
Quality Inspection
  • Thermal resistance measurement
  • Surface finish inspection per ANSI/ASME B46.1

Factories Producing Aluminum Heat Sink

Verified manufacturers with capability to produce this product in China

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✓ 94% Supplier Capability Match Found

P Procurement Specialist from United Arab Emirates Feb 04, 2026
★★★★★
"Great transparency on the Aluminum Heat Sink components. Essential for our Aluminum Product Manufacturing supply chain."
Technical Specifications Verified
T Technical Director from Australia Feb 01, 2026
★★★★★
"The Aluminum Heat Sink we sourced perfectly fits our Aluminum Product Manufacturing production line requirements."
Technical Specifications Verified
P Project Engineer from Singapore Jan 29, 2026
★★★★★
"Found 15+ suppliers for Aluminum Heat Sink on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

5 sourcing managers are analyzing this specification now. Last inquiry for Aluminum Heat Sink from Brazil (1h ago).

Frequently Asked Questions

What are the advantages of using aluminum alloy 6061 for heat sinks?

Aluminum alloy 6061 offers excellent thermal conductivity, good machinability for custom shapes, and corrosion resistance, making it ideal for efficient heat dissipation in electronic assemblies.

How do I specify custom dimensions for my aluminum heat sink?

Provide base dimensions (mm), fin height (mm), fin pitch (mm), and mounting hole pattern (mm) requirements. We manufacture to your exact specifications for optimal thermal performance.

What thermal interface materials are compatible with your aluminum heat sinks?

Our heat sinks work with various thermal interface materials like thermal paste, pads, or adhesive tapes to ensure maximum heat transfer between components and the sink surface.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Aluminum Product Manufacturing sector.

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