Copper Tube Copper Fin Evaporator 5mm Pitch

finned copper tube heat exchanger

Our finned copper tube heat exchangers are engineered to deliver industry-leading thermal performance in demanding environments. By combining the superior conductivity of high-purity copper with advanced surface-extension technology, these units offer a compact and reliable solution for air-to-liquid and gas-to-liquid thermal management.

A finned copper tube heat exchanger (copper-aluminum finned heat exchanger) is a copper-based tube with metal fins (usually made of aluminum or copper) added to its outer surface. This significantly increases the heat transfer area, improving heat transfer efficiency, making it particularly suitable for gas-liquid heat exchange.

This is a very common and efficient heat exchange device, widely used in air conditioning, refrigeration, heating, ventilation, air conditioning (HVAC), and industrial cooling systems.

 

 

Structure of a Finned Copper Tube Heat Exchanger   

Copper Tube: Serves as the internal flow channel, typically carrying refrigerant (such as Freon), water, or oil. Copper has excellent thermal conductivity and corrosion resistance, and is easy to bend and process.

Fins: Using copper fins , tightly fitted or expanded onto the outside of the copper tube.

Working Principle: The main function of fins is to significantly increase the surface area in contact with air. When air flows over the fin surface, heat can be transferred more quickly between the fluid inside the tube and the air outside.

Enhanced Heat Transfer: Because the thermal conductivity of air is much lower than that of liquids or metals, without fins, the efficiency of heat exchange between smooth copper tubes and air is very low. Adding fins can increase the heat exchange area by tens or even hundreds of times, thus significantly improving heat exchange efficiency.

Flow Pattern: Typically, one fluid flows inside the tube (forced convection), while another fluid (usually air) is driven by a fan to sweep laterally across the fin surface (forced convection)  

 

Key Features

High thermal conductivity copper tube

Extended fin surface area

Forced-air cooling

Improved heat exchange efficiency

Compact and efficient design

Common Problem

Why use copper tube and copper fin construction?  

Copper offers higher thermal conductivity, lower thermal resistance, and better corrosion resistance compared with aluminum fin designs.

What are the advantages of 5mm fin spacing?

5mm fin spacing helps improve airflow, reduce frost blockage, and maintain efficient heat exchange in refrigeration and HVAC systems.

Is copper fin better than aluminum fin?

Copper fins generally provide faster heat transfer, better durability, and improved compatibility with copper tubes.

Does smaller fin pitch improve cooling performance?

A smaller fin pitch increases heat transfer area, but excessively tight spacing may reduce airflow and increase frosting risk. 5mm is considered an optimized balance.

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