Thermoelectric Coolers Heat Sink
Thermoelectric Coolers paired with Heat Sinks serve as another core assembly of TEC modules. The heat sink undertakes dual functions: dissipating waste heat from the hot side for heat rejection and assisting low-temperature cooling on the cold side, ensuring stable operating temperature for the whole thermoelectric system.
What is a heat sink used with thermoelectric coolers?
Thermoelectric Coolers and matching heat sinks are vital core components of complete TEC modules, undertaking both heat dissipation and refrigeration functions to stabilize the overall operating temperature. We adopt diverse mature manufacturing techniques to produce high-performance heat sinks. Extruded profiles offer lightweight, cost-effective solutions for low-power cooling demands. Solder paste welding delivers tight thermal bonding for reliable heat conduction.
Skived fin technology creates dense, ultra-thin fins to maximize heat exchange area for high-power heat loads. Epoxy bonding connects copper and aluminum without high-temperature brazing, cutting production costs while maintaining low contact thermal resistance. All finished heat sinks pass strict flatness inspection and leakage tests, compatible with 50W to 1000W TEC modules for semiconductor, laser and medical cooling equipment.
What's a extrusion heat sink?
An extrusion heat sink is integrally formed from solid aluminum alloy rods via high-temperature extrusion. Heated aluminum billets are forced through custom metal dies to extrude a flat base and integrated cooling fins in one single step, removing the need for secondary welding, bonding or assembly work. This high-speed, low-cost manufacturing process creates seamless, lightweight structures with consistent basic thermal conductivity. Custom die designs allow flexible adjustment of fin height, thickness and spacing, making it perfectly matched for small and medium-power TEC modules under 50-200W.
This heat sink is commonly mounted on the cold side of TEC assemblies. After anodization, its ultra-smooth surface avoids clinging condensed water droplets, which slide down freely under gravity. This feature prevents accumulated moisture from corrode electronic chips and internal circuits, greatly extending the service life of the whole cooling system. However, die structural strength restricts the production of extra tall and ultra-thin fins, limiting the total heat exchange area. Thus it cannot handle ultra-high-power heat loads, and is widely adopted for small industrial temperature control devices and standard laser cooling modules.
What's a Skived fin heat sink
A skived fin heat sink is a high-performance thermal component manufactured by precision skiving cutting technology. Its raw materials cover three mainstream options: aluminum alloy 1060, aluminum alloy 6063, and pure copper C1100, all featuring excellent intrinsic thermal conductivity. The integral base and ultra-thin, dense fins are cut from a single solid metal block in one continuous process, eliminating thermal resistance from welding or bonding gaps.
This heat sink is mostly installed on the hot side of TEC modules. We can flexibly adjust fin thickness and spacing to maximize overall heat dissipation efficiency. Our standard processing capacity allows fin thickness of 0.5mm, fin spacing of 1.0mm, and fin height up to 120mm. Its dense fin layout vastly expands heat exchange area to transfer heat efficiently. Unlike extrusion heat sinks, skived fins can be made much taller and thinner without die limitations. The only minor drawback is slightly higher production cost, making it the preferred solution for high-power laser, semiconductor and industrial cooling equipment.
What's a Soldering heat sinks?
Soldering heat sinks are manufactured via solder paste welding technology. The cooling fins are usually aluminum, and the base plate can be either aluminum or copper. Nickel plating is applied on mating surfaces specifically for reliable soldering, which removes surface oxidation to ensure full bonding between metal parts. For high-power TEC modules, multiple heat pipes are commonly soldered tightly onto the base plate; these heat pipes transfer concentrated heat rapidly to remote fin areas, evenly distributing heat across the whole sink and significantly boosting overall heat dissipation efficiency.
This welded assembly eliminates air gaps between components and greatly reduces contact thermal resistance, delivering much faster heat conduction from TEC modules. It supports more flexible fin layouts than extrusion heat sinks and strikes a good balance between manufacturing cost and thermal performance compared with skived fin heat sinks. This type of sink matches medium and high-power TEC assemblies perfectly, widely adopted in laser devices, semiconductor test instruments and industrial precision temperature control systems.modules.
Advantages of Our Custom Heat sinks
We possess powerful precision CNC machining capacity to deliver custom heat sinks with strict dimensional tolerance. All our CNC equipment are imported Brother machines from Japan, which ensure stable high-precision cutting for aluminum and copper raw materials. Our factory is fully equipped with complete dedicated skived fin machines to produce ultra-thin, high-density fins flexibly.
Besides, we own a full independent production line for soldering processes, covering nickel plating, heat pipe welding and fin-base bonding. The integrated processing workflow shortens lead time, controls contact thermal resistance effectively, and supports customized heat sink solutions for low to ultra-high power TEC cooling modules.
Standard heat sinks
Drawing on years of accumulated thermal design and production experience, we have independently developed a full portfolio of ready-made standard heat sinks to address diversified heat dissipation demands across different power levels and application scenarios. Our customers enjoy flexible procurement choices to fit their own assembly plans: they can opt for our complete pre-assembled TEC cooling modules with matched heat sinks for plug-and-play use, or purchase our standalone standard heat sinks separately to integrate with their existing self-assembled cooling systems.
These standard heat sinks cover extrusion, skived fin and solder-welded types, compatible with 50W–1000W TEC assemblies widely used in semiconductors, laser equipment, medical instruments and industrial temperature control devices. All standard models are kept in sufficient stock for fast delivery, while we also support minor parameter adjustments on standard products to better align with clients’ unique equipment specifications, striking a balance between fast lead time and application adaptability.demands.
50W heat pipe heat sink
100W heat pipe heat sink
