Extruded Heat Sink Block with Finned Heat Sink and Uniform Fin Spacing

Base flatness deviation above 0.05 mm also increases thermal interface resistance at the component mounting surface and raises effective thermal resistance by up to 20% for high-power applications. Dongguan Tongshunda Precision Technology (Dongguan, Guangdong, established 2023) CNC-mills this extruded aluminium finned heat sink block with uniform fin spacing at their nearly 2,000 m² Dongguan facility, with fin pitch, fin height, and base flatness confirmed using your drawing as reference at initial sample inspection. Tongshunda serves aerospace, automation, electric motors, monitoring equipment, and robotics finned heat sink applications on CNC milling equipment, boring & milling, and surface grinding. When submitting, include your drawing with fin pitch, fin height, base flatness, mounting hole positions, and aluminium grade and we will return a pricing from our Dongguan facility. End markets span military, drones, and battery.