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Our custom CNC machined aluminum 6061 heat sink fins are precision-engineered thermal management components designed for efficient heat dissipation in electronics, LED lighting, power systems, and automotive applications. Manufactured from high-grade Aluminum 6061-T6 alloy, these heat sinks feature optimized fin geometries with tight tolerances to maximize surface area and thermal conductivity, ensuring reliable performance under demanding operating conditions.
At Sinbo Precision, we utilize advanced 3-axis and 4-axis CNC milling centers to produce heat sink fins with complex fin profiles, precise channel spacing, and smooth surface finishes that enhance airflow and heat transfer efficiency. Our engineering team provides free DFM analysis to optimize fin density, base thickness, and overall geometry for your specific thermal requirements, balancing cooling performance with material efficiency.
Key Features
Optimized Thermal Design: Precision CNC machined fin profiles with calculated fin spacing and thickness for maximum heat dissipation efficiency and airflow performance.
Premium Aluminum 6061-T6: Excellent thermal conductivity (167 W/mK), lightweight, corrosion-resistant, and ideal for high-volume thermal management applications.
Complex Fin Geometries: Multi-axis CNC machining enables intricate fin patterns including straight fins, pin fins, louvered fins, and custom cross-cut configurations.
Strict Dimensional Control: Tolerances of +/-0.01mm ensure consistent fin spacing, base flatness, and mounting hole accuracy for reliable assembly and thermal contact.
Versatile Surface Treatments: Natural anodizing, black anodizing, hard anodizing, and powder coating options available to enhance thermal performance and environmental protection.
Technical Specifications
Specification
Details
Product Name
Custom CNC Machined Aluminum 6061 Heat Sink Fins
Material Options
Aluminum 6061-T6, Aluminum 5052, Aluminum 7075-T6
Tolerance
+/-0.01mm (fin spacing, base flatness, mounting holes)
Surface Treatment
Natural Anodizing, Black Anodizing, Hard Anodizing Type III, Powder Coating
Certifications
ISO 9001:2015, IATF 16949, RoHS, CE
Lead Time - Prototype
3-7 days
Lead Time - Production
7-15 days
MOQ
1 piece (prototype), 100+ (production)
Origin
Dongguan, China
Applications
Consumer Electronics: CPU and GPU cooling heatsinks, laptop heat dissipation plates, smartphone thermal management modules, gaming console cooling systems
LED Lighting: High-power LED street light heat sinks, commercial lighting cooling fins, stadium light thermal management, horticulture grow light heat dissipation
Automotive: EV battery pack cooling plates, electric motor heat sinks, power inverter thermal management, automotive LED headlight cooling
Power Electronics: Industrial power supply cooling, UPS system heat sinks, inverter thermal management, welding equipment cooling components
Telecommunications: 5G base station heat sinks, server rack cooling modules, router thermal management, data center cooling components
Industrial Equipment: Laser diode cooling, CNC spindle cooling plates, industrial motor heat dissipation, solar inverter thermal management
Why Choose Sinbo Precision
20+ Years Experience: Established in 2003, served 5000+ customers worldwide with precision machined components
Advanced Equipment: 50+ CNC machining centers including 3/4/5-axis machines for complex heat sink geometries
Strict Quality Control: CMM inspection for fin spacing accuracy, base flatness verification, thermal conductivity testing available
Fast Delivery: 3-7 days for prototypes, 7-15 days for production orders
Competitive Pricing: Factory-direct pricing with no middleman, ideal for high-volume heat sink production
One-Stop Service: From DFM analysis and prototyping to surface treatment and delivery
Manufacturing Process
Design Review: Free DFM analysis for fin geometry optimization, thermal simulation recommendations, and material selection guidance
Material Selection: Aluminum 6061-T6 standard, with 5052 and 7075 options for specialized thermal requirements
Precision Machining: Multi-axis CNC milling for complex fin profiles, precise channel cutting, and base surface finishing
Quality Inspection: CMM measurement of fin dimensions, base flatness testing, visual surface inspection
Surface Treatment: Anodizing (natural/black/hard coat), powder coating for enhanced thermal radiation and corrosion protection
Packaging & Delivery: Protective packaging to prevent fin damage, fast worldwide shipping via DHL/FedEx/UPS
Frequently Asked Questions
What is your minimum order quantity?
We accept prototype orders from 1 piece for design validation. Production MOQ is typically 100 pieces, with flexible options available.
What file formats do you accept?
STEP, IGS, SLDPRT, PDF, DWG, DXF formats for both 2D drawings and 3D models.
What tolerances can you achieve for fin spacing?
Standard tolerance is +/-0.01mm. We can achieve tighter tolerances of +/-0.005mm for critical thermal management applications.
Do you provide material certificates?
Yes, material test certificates (MTC) are available for all aluminum alloys upon request.
What is the typical lead time?
Prototype: 3-7 days. Small batch: 7-15 days. Mass production: 15-25 days depending on complexity.
Can you help optimize the heat sink design?
Yes, our engineering team provides free DFM analysis and thermal design recommendations including fin density, base thickness, and surface treatment selection.
