Custom Precision CNC Machined Fin Heat Sink

Product Overview

With 26 years of professional CNC machining expertise and ISO 9001, ISO 14001, IATF 16949, ISO 13485 multi-system certifications, Dawang Precision delivers industry-leading Custom Precision CNC Machined Fin Heat Sink solutions for enterprise clients requiring reliable thermal management. Our high-performance aluminum fin heat sink is engineered with high-thermal-conductivity 6061-T6/7075-T6 aluminum alloy, featuring a dense parallel fin array and optimized contoured base to solve critical heat dissipation challenges in compact, high-power equipment designs. Fully customized via advanced 5-axis CNC machining, our 5-axis CNC machined heat dissipator delivers exceptional thermal performance, precise dimensional control, and seamless system integration, with a strict ±0.01mm tolerance to ensure consistent cooling across every unit. We support end-to-end customization, from design optimization to rapid prototyping and mass production, with free quotations provided within 24 hours upon receipt of your drawings.

Dawang Precision produces custom CNC machined fin heat sinks in high-thermal-conductivity aluminum. This advanced cooler features a dense fin array and contoured base for exceptional heat dissipation and airflow—ideal for high-power electronics, LED lighting, and industrial systems requiring superior thermal performance in compact designs.

Fully customizable with 5-axis CNC for precise fin geometry and mounting features.

Features & Benefits

Maximized Thermal Dissipation Efficiency

Our dense fin array radiator adopts a high-density fin structure that drastically expands effective heat exchange surface area, enabling rapid heat transfer away from critical components. This design lowers operating temperatures of high-power electronics, minimizing thermal throttling and extending core equipment service life.

Optimized Airflow & Low-Noise Operation

The curved base and streamlined fin geometry of our industrial aluminum heat sink reduce airflow resistance, enabling unobstructed ventilation even in space-constrained enclosures. This optimized design cuts operational noise while boosting cooling efficiency, ideal for noise-sensitive industrial and commercial applications.

Ultra-Precision Machining for Uniform Cooling

Manufactured via state-of-the-art 5-axis CNC milling, our precision finned heat sink maintains a tight ±0.01mm tolerance, ensuring uniform fin spacing and consistent contact between the heat sink base and heat-generating components. This precision eliminates hotspots and delivers balanced, reliable cooling across the entire component surface.

Durable & Corrosion-Resistant Construction

The anodized surface finish of our anodized aluminum cooling fin plate delivers exceptional corrosion and wear resistance, protecting the heat sink in harsh industrial, outdoor, or high-humidity environments. High-strength aluminum alloy balances lightweight design and structural durability, simplifying installation and integration.

Full Customization for Tailored Solutions

We offer complete flexibility to tailor fin density, fin height, base dimensions, mounting features, and surface finishes to match your exact thermal and mechanical requirements, ensuring a perfect fit for your unique application.

Applications of Custom Precision CNC Machined Fin Heat Sink

Our Custom Precision CNC Machined Fin Heat Sink is widely adopted by equipment manufacturers and system integrators across key sectors, including high-power electronics cooling (CPU/GPU systems, industrial amplifiers, semiconductor test equipment), LED lighting and commercial display systems, industrial power modules and automation control equipment, aerospace and automotive thermal management systems, as well as new energy, medical device, and 3C electronics thermal control applications.

This type of product can be applied to: 

• High-power electronics cooling (CPU/GPU, amplifiers)

• LED lighting and display systems

• Industrial power modules

• Aerospace and automotive thermal management