The unique combination of heat storage and heat transfer makes our preheaters highly efficient. A rotating rotor with specially profiled heating elements ensures optimum preheating of the gas flows with minimal pressure loss. The robust design and low fouling tendency guarantee reliable operation, even under challenging conditions.

They can be used in a variety of ways: in coal and oil-fired power plants for preheating combustion and clean gas, in waste incineration plants for recovering flue gas heat and in FGD and SCR plants for corrosion prevention and temperature control. They also provide valuable services in drying processes in fluidized bed and marine boilers.

A number of technological innovations ensure the efficiency and reliability of our Ljungström heat exchangers. Patented sealing systems minimize leakages and ensure precise separation of the gas flows. Redundant drive systems ensure maximum operational reliability and uninterrupted continuous operation. Online cleaning systems maintain the heat output at a consistently high level and prevent power losses due to contamination. In addition, various heating element profiles offer precise adaptation to the requirements of each area of application to ensure maximum flexibility and performance.

In addition to the development of new systems, we also offer comprehensive re-engineering services, maintenance services and spare parts for preheaters from other manufacturers. Our modern cleaning equipment and fire-fighting systems ensure safe and efficient operation for many years.

Our air and gas preheaters combine proven technology with state-of-the-art innovation. They meet the highest standards of efficiency, environmental friendliness and reliability and are therefore the key to sustainable and economical energy processes.