Custom Aluminum Extruded Heat Sinks
Engineered for high-volume thermal dissipation. Utilizing premium 6000-series aluminum alloys, our extrusions offer optimized aspect ratios and dense fin configurations, ideal for LED lighting, power supplies, and PCBs.
High-Density Skived Fin Heat Sinks
Produced via precision skiving machinery to shave fins from solid copper or aluminum blocks. This process eliminates thermal resistance at the fin-to-base joint, delivering maximum cooling efficiency in space-constrained enclosures.
Forged & CNC Machined Pin Fin Heat Sinks
Designed with omnidirectional pin arrays to maximize airflow infiltration. Perfect for natural convection environments, these components feature low thermal resistance and are customizable with precise mounting holes and face mill finishes.
Precision Machined Liquid Cold Plates
CNC milled with internal friction stir welded (FSW) or deep-hole drilled fluid channels. These advanced cooling blocks provide localized, high-heat flux removal for EV batteries, medical lasers, and high-power IGBT modules.
Multi-Axis CNC Milled Custom Heat Sinks
Specifically tailored for enclosures with highly irregular structural boundaries or complex geometric limitations. Milled from solid metal billets on 4-axis and 5-axis machining centers to guarantee strict flat surfaces and ultra-precise integrated mounting posts.
Precision Stamped Zipper Fin Heat Sinks
Utilizing high-speed progressive stamping dies to produce ultra-thin, interlocking fin arrays. These lightweight structures are typically soldered or epoxied to a machined copper base or integrated with heat pipes for high-performance server CPU and telecom cooling.
CNC Bonded Copper Insert Heat Sinks
Combining the rapid localized heat absorption of a solid copper core with the lightweight, cost-effective dissipation fins of an aluminum housing. The press-fit interface is precision CNC turned and micro-milled to eliminate air gaps and maximize thermal transfer.
Custom Die-Cast Aluminum Heat Sink Housings
Engineered for rugged outdoor electronics, automotive ECUs, and telecom base stations. These components combine robust structural protection with complex, integrated cooling fins, post-machined via precision CNC tooling to achieve exact sealing-groove tolerances.
Our manufacturing facility features advanced multi-axis CNC milling centers, precision stamping lines, and automated skiving machinery. We strictly regulate axis feed rates and cutting speeds to guarantee that the base flatness and surface roughness (Ra max 0.8 um) meet the stringent demands of high-end optoelectronics
Automated Machining & Slicing
Advanced CNC mills and skiving systems shape the core geometry from premium raw billets with strict tolerance control.
Specialized Surface Treating
Comprehensive in-house finishing options including clear/black anodizing, chemical conversion coating, and electroless nickel plating to enhance corrosion resistance and thermal emissivity.
Comprehensive Integrity Inspection
100% CMM dimensional validation, coordinate profile checking, and interface flatness verification to prevent any thermal air gaps during final assembly.
Secure Packaging & Global Shipping
Customized anti-static, shock-absorbing packaging protocols to ensure zero deformation of delicate cooling fins during international transport.
It depends entirely on your thermal load and budget. Copper offers exceptionally high thermal conductivity, making it the best choice for localized hot spots and high-power density components. However, Aluminum is lightweight, highly cost-effective, and extremely adaptable to complex custom shapes via extrusion or precision CNC milling. For many advanced projects, we can also manufacture hybrid copper-aluminum bonded structures to deliver optimal cooling performance while controlling costs.
As an industrial source manufacturer, our standard CNC milling setup maintains tight linear tolerances down to plus or minus 0.02 mm. For heat sinks, the critical factor is preventing thermal air gaps when mounting. To guarantee maximum thermal transfer, we utilize specialized face milling operations to achieve a strict base flatness within 0.05 mm, minimizing the required thickness of your thermal interface material (TIM).
Yes, absolutely. We support everything from single-unit functional prototypes for DFM (Design for Manufacturing) evaluation to full high-volume production runs. Our flexible workshop scheduling allows us to deliver quick-turn prototypes rapidly so your team can perform practical thermal testing. Simply upload your standard STEP or STP files, and our engineering team will provide a comprehensive feedback quote within 24 hours.
We provide a comprehensive range of in-house surface finishing options designed to protect the hardware and improve heat radiation. For aluminum heat sinks, clear or black anodizing is the most popular choice to boost corrosion resistance and surface emissivity. We also offer gold chromate, chemical conversion coatings, and electroless nickel plating, ensuring excellent surface conductivity and environmental protection for rugged telecom and automotive applications
If you have any design files that need to be sent, please email them to info@xml-cnc.com
