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Phase Change Cooling Heat Sink

Ultra-High Thermal Conductivity: Vapor chamber technology offers two-phase heat transfer with effective thermal conductivity exceeding 5000 W/mÂ·K-far surpassing conventional metal heat sinks.

Uniform Heat Spreading: Eliminates hotspots by distributing thermal energy evenly across the surface via vaporization and condensation cycle.

Passive and Energy-Efficient: Operates entirely passively-no pumps, fans, or moving parts required, reducing system complexity and power draw.

Compact and Lightweight: Thin, planar form factor minimizes footprint and weight-ideal for space-constrained and portable applications.

Aluminum Alloy Construction: Uses AA6063 or AA6060 alloy chambers and base, balancing thermal performance with manufacturability.

Flexible Integration: Easily soldered to extruded or stamped fin structures, including zipper-fin designs for enhanced surface area.

Wide Thermal Load Range: Effective for managing heat from 10 W up to multiple kilowatts in demanding power electronics and new energy systems.

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Phase Change Cooling Heat Sink Product

Customization Capabilities

Our phase change cooling heat sinks (vapor chamber type) are fully customizable to meet diverse high-performance thermal management needs.

Chamber Alloy: AA6063 or AA6060 aluminum alloy for lightweight and heat-spreading efficiency
Chamber Size: Custom planar dimensions to fit varied component layouts and thermal requirements
Fin Integration: Options include soldered extruded fins or stamped zipper fins for increased dissipation
Working Fluid: Vacuum-sealed with optimal fluid for phase-change cycle, water or suitable coolant
Surface Finish: Mill finish, anodizing, or custom coatings for corrosion resistance and aesthetic integration
Sealing Method: High-temperature hot melt sealing or brazing for leak-free operation
Thickness Profile: Slim profile optimized for weight and contact efficiency
Thermal Performance Target: Options to meet specific thermal resistance or heat load requirements

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Why Partner with Sinoextrud for Your Phase Change Cooling Heat Sink Needs?

We are more than just an aluminum profile supplier — we’re your efficient, reliable, long-term partner.

With Us, You Get:Faster turnaround，Stable quality，Competitive pricing，End-to-end support.

Large-Scale Manufacturing：Our factory spans 1,000 mu (about 667,000 m²), with full in-house capabilities from aluminum smelting and billet casting to extrusion, surface treatment, and CNC machining.

One-Stop Solution：With 43 extrusion lines (500–5500 tons) and a dedicated mold partner, we provide fast production, custom profiles, and integrated services to simplify your supply chain.

Quality You Can Trust：Strict quality control ensures consistent dimensions, strength, and finish, reducing your risk and increasing reliability.

Fast Delivery & Cost Efficiency：Self-produced billets, in-house processing, and batch production mean faster lead times and lower overall costs.

Advanced Finishing Options：Anodizing and both vertical and horizontal powder coating lines deliver durable, high-quality surface finishes tailored to your product needs.

Factory Overview

Furnace workshop

Aluminum bar production

Mold Warehouse

500-5500 Tons Extruder

Spraying workshop

Anodizing workshop

Deep Processing Workshop

CNC Machining Workshop

Finished goods warehouse

Finished goods warehouse

Finished goods warehouse

Export warehouse

5500 Ton Extrusion Press

Aluminum extrusion press

Large Aluminum Extrusion Line

Aluminum extrusion production line

Extrusion workshop

IATF 16949 Certification

TUV

Finished goods warehouse

Export warehouse

-Standard Packing Option-

* Long bar length profiles 3.0-6.0 meters*

Protective Film

Shrink Sleeve

Brown Paper

Craft Paper

* Short bar length profiles 0.3-3.0 meters*

EPE Foam

Poly Bag

Wooden Crate

Wooden Case

-Loading & Shipment-

Pallet Loading

Bulk Loading

LCL Loading

Expedited Express

STEPS

How to work with us

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Quote & Estimation
Begin with a thorough evaluation of the design's feasibility, followed by a prompt, detailed estimate.
Sample & Test
Creating a prototype to assess dimensions and ensure the mold's precision aligns with the requirements.
Extrude & Finish
Producing the aluminum profile with pinpoint accuracy to the given specifications and applying desired finishes.
Pack & Deliver
Tailored packaging for the extruded profiles, ensuring safe and efficient loading for prompt delivery.

Phase Change Cooling Heat Sink-FAQ's

What makes vapor chamber heat sinks superior?

They use phase change to achieve ultra-high thermal conductivity and uniform heat spread, far exceeding solid metal heat sinks.

Are external power or fans required?

No-they operate passively, relying solely on evaporation and condensation cycles inside the chamber.

What materials are used?

Constructed with AA6063 or AA6060 aluminum alloys, with high-temperature sealing for robust performance.

Can fins be integrated?

Yes-we can solder extruded or stamped zipper fins directly to the vapor chamber for enhanced heat dissipation.

What applications suit this design?

Ideal for compact, high-heat systems such as power electronics, LED lighting, new energy modules, and server components.

How thin can designs be?

Very thin planar profiles are possible, enabling low-profile and lightweight solutions.

Is temperature uniformity improved?

Absolutely-vapor chambers eliminate hotspots by effectively spreading heat across the entire surface.

What thermal loads can they handle?

These solutions span from small loads (~10 W) up to multi-kilowatt systems.

Are there surface finish options?

Yes-supporting mill finish, anodizing, or custom coatings for protection and aesthetics.

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Sinoextrud: Your Phase Change Cooling Heat Sink Manufacturer

Phase-change (vapor chamber) aluminum heat sinks harness the two-phase cooling principle to achieve exceptional thermal performance. By circulating fluid inside a sealed chamber, heat is absorbed, vaporized, and redistributed quickly and uniformly, preventing hotspots and enhancing device reliability.

The passive design eliminates the need for active cooling components, reducing power consumption and increasing system simplicity. Compact planar architecture and lightweight aluminum construction make these heat sinks ideal for modern, space-sensitive applications.

Constructed with quality aluminum alloys and sealed via high-temperature processes, our vapor chamber heat sinks can be paired with precision fins or other heat-spreading structures. Custom finishes and form factors ensure seamless integration into your thermal management designs.

With customization across chamber size, fin integration, surface treatment, and performance targets, these heat sinks provide effective thermal solutions for high-power electronics, new energy modules, LEDs, servers, and beyond-all under strict quality control and reliable delivery.

Phase Change Cooling Heat Sink : The Ultimate FAQ Guide

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