Our air-to-air heat exchanger offers you superior excess gas cooling
An easy-to-install clinker cooler excess gas cooling solution, our air-to-air heat exchanger can handle gas temperatures up to 500°C. A modular design allows you to customise where the excess gas enters the system and offers flexibility for ease of expansion. The small axial fans are energy efficient, saving on OPEX.

A reliable air-to-air heat exchanger for effective excess gas cooling
Production of cement clinker produces a lot of hot, dust-laden excess gases. These hot gases need to be cooled quickly to reduce negative impacts on downstream equipment and to meet emission requirements. For efficient and reliable cement clinker excess air cooling, our air-to-air heat exchanger for gas cooling showcases smart technology with a modular design to fit your cooling needs.

Air-to-air heat exchanger excels in clinker cooler excess gas cooling
01
Modular design for fast installation and expansions
Our air-to-air heat exchanger modules and fans arrive to you, pre-assembled for your installation convenience. Additional modules are easily installed if you want to increase production.
02
Low power consumption for the cooling fans
The design decision to use small axial cooling fans results in lower power consumption, saving you on operational costs and reduced emissions.
03
Low initial costs and minimal maintenance demands
Our highly-optimised heat exchanger, with its modular design, is cost effective and reliable. The simple yet clever design of the air-to-air heat exchanger means we keep your maintenance costs down. By offering wear parts that are simple to replace, less time is spent on maintenance. Fan motors can be repaired or replaced while the air-to-air heat exchanger remains in operation, meaning no costly production shut-down.
04
Long lifetime of downstream filter bags
The air-to-air heat exchanger reduces excess gas temperature to the desired operating temperature of the downstream filter. This prevents filter bag damage, unstable kiln hood draft control and limited vent system capacity even during sudden flushes from the kiln. When extreme temperature fluctuations occur, two safety dampers introduce fresh air into the process, protecting the filter bags. More affordable bags with lower operating temperatures can be used, if desired.
Air-to-air heat exchanger designed to ease your gas cooling pains
The technology behind the heat exchanger’s design is referred to air-to-air heat exchange. This simply describes using forced air to cool the hot gases, or in this case, cooler excess gas in the tubes.
Small axial fans to reduce energy use
The number of fans is highly dependent on the number of modules you select for your air-to-air heat exchanger.
Easily replaceable wear parts
In heat exchangers, wear tends to occur around the tube inlets, due to the extreme heat and dust-laden gases. These wear parts are easy to replace as they are simply placed on top of the cooling tube like a cap. Fan motors can also be maintained while the air-to-air heat exchanger is still in operation.
Designed for easy transport and assembly
The air-to-air heat exchanger modules are assembled in the workshop and transported to site in standard containers. Each module consists of a bundle of carbon steel tubes and tube sheets, assembled within a structural frame. The tubes are shop-welded to upper and lower tube sheets, with intermediate tube sheets located between fan levels. The lower and intermediate tube sheets are welded to the frame, while the upper tube sheet floats to allow for tube expansion.
Another one bites the dust
The dust precipitated from the gas stream is collected in a bottom hopper and transported out by a screw conveyor. At the discharge of the screw conveyor, a flap valve minimises false air intake before passing the dust to the subsequent conveying system.
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