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Cold Transfer Heat Sink

Low-Temperature Heat Transfer Suitability: Designed to operate effectively in low-temperature environments (-40 °C to 20 °C), where conventional copper heat pipes using water fail to function.

Multi-Cavity Superconducting Structure: Composed of an array of independent channels across its width, each containing cavities filled with refrigerant or liquid ammonia as the working fluid for optimal thermal performance.

Reliable in Extreme Cold Environments: Works in states unsuitable for copper-based vapor plates or heat pipes, enabling consistent heat transfer even at very low ambient temperatures.

Precise Thermal Control: The multi-channel layout allows efficient distribution of heat while preserving the superconducting behavior of the working fluid.

Light-Weight Aluminum Body: Constructed from aluminum for a balance of thermal conductivity and structural lightness.

Robust Design for Specialized Use Cases: Engineered specifically for applications where ordinary thermal management systems underperform due to sub-zero conditions.

Bespoke Engineering Potential: Ideal for systems requiring stable, passive cooling in deep-cold contexts such as industrial cryogenics or low-temperature electronics.

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Cold Transfer Heat Sink Product

Customization Capabilities

These Cold Transfer Heat Sinks are fully adaptable to your systemâ€™s specialized thermal requirements in extreme cold environments.

Channel Configuration: Array of independent cavities tailored in number, size, and layout for optimized thermal distribution.
Working Fluid Options: Supports low-freeze refrigerants or liquid ammonia as alternative to traditional water-based fluids.
Operating Temperature Range: Engineered specifically for temperatures from -40 °C to 20 °C.
Plate Dimensions: Length, width, thickness customizable to fit diverse system architectures.
Material Finish: Aluminum body surface treatments such as anodizing or protective coatings available.
Mounting Design: Flat panel or framed variants to suit integration with cold plates or cold-chain assemblies.
Packaging Solutions: Export-ready protective packaging options including foam padding or crating for secure transit.

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Why Partner with Sinoextrud for Your Cold Transfer 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.

Cold Transfer Heat Sink-FAQ's

Why can’t standard copper heat pipes using water be used for cold transfer?

Water-based copper heat pipes fail below freezing; our design uses refrigerants or ammonia that remain functional down to -40 °C.

What is the working fluid used in the heat sink?

It employs low-freeze refrigerant or liquid ammonia as the working medium within each channel cavity.

How is the internal structure designed?

A multi-cavity layout with independent channels across the plate ensures uniform thermal distribution and superconducting behavior.

What's the operating temperature range?

Designed precisely for -40 °C to 20 °C environments.

Can dimensions be customized?

Yes-plate size, cavity layout, thickness, and panel form are customizable to meet specific system needs.

What surface finishes are available?

Surface treatments such as anodizing or corrosion-resistant coating can be applied per request.

How suitable is it for integration into cold-chain systems?

The design supports flat-panel or framed mounting for seamless integration with cold plates or refrigeration systems.

What packaging options are available?

Export-grade protective packaging is offered, including foam-lined boxes or wooden crates to ensure safe delivery.

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Sinoextrud: Your Cold Transfer Heat Sink Manufacturer

Cold Transfer Heat Sink is specialized for passive heat transport in extremely low-temperature environments, achieving reliable performance from -40 °C to 20 °C-conditions where traditional copper-water vapor solutions fail.

Featuring a multi-channel superconducting structure filled with refrigerant or liquid ammonia, this plate promotes efficient and balanced heat distribution across its width, preserving functionality even under cryogenic conditions.

Constructed with lightweight aluminum, it maintains structural integrity and offers customizable form factors to integrate into niche thermal systems without compromising performance or adding excess weight.

Available with surface finish options and mounting styles-such as flat-panel or framed versions-this solution is tailored for seamless deployment in cold-chain infrastructure, scientific instrumentation, or cryogenic cooling assemblies.

With custom engineering support and careful export-ready packaging, our Cold Transfer Heat Sink delivers robust, dependable thermal management for systems operating in sub-zero environments.

Cold Transfer Heat Sink : The Ultimate FAQ Guide

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