KTI-Plersch Kältetechnik

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CombiMaster (CM)

CombiMaster (Cold Air & Cold Water / Hot Air & Hot Water)

KTI’s CombiMaster has been designed for regions where the concrete needs to be heated in winter and cooled in summer. The CombiMaster is a combined heating system and refrigeration system in one unit. Thus, both the production of hot water and hot air as well as cold water and cold air is possible. The CombiMaster is the only solution on the market that offers such a versatile and flexible use.

For cooling or heating aggregates, the CombiMaster blows cold or hot air through the aggregates silos of the concrete batching plant. This is the most effective solution to achieve and guarantee the desired concrete temperature.

In addition, the desired temperature is produced by adding hot water or cold water directly into the concrete batching plant. The CombiMaster is also characterized by its low energy consumption and high reliability by cooling or heating with water.

The CombiMaster is designed very robust and modular, what allows its operation in a wide range of applications. The CombiMaster is entirely prefabricated and completely installed in a container.

The concept of the CombiMaster enables fully automatic operation in heating and cooling modes. For example, aggregates could be heated in the early morning, so that anything hinders the start of production.


Heating capacity – water:300 kW
Hot water output:3.2 m³ / h
Max. water temperature:+85 °C
Heating capacity – air:210 or 380 kW
Max. air temperature:+150 °C
Refrigeration capacity – water:40 or 50 kW
Cold water output:2.2 or 2.7 m³ / h
Min. water temperature:+4 °C
Refrigeration capacity – air:105 or 190 kW
Min. air temperature:+2 °C
Machinery room:40-ft. container, room cooling, optionally insulated
Power supply:50 Hz or 60 Hz; special power supply upon request
Control:Siemens PLC, Color-Touchscreen