Efficient Convective Drying for Fish Meal and By-Products

The Oestergaard Hot Air Dryer—also known as the Hot Air Rotary Dryer with KHLT Recirculation—is a convective heat exchange system designed for the efficient drying of various products, including feathers. However, it is particularly renowned for its performance in fish meal processing.

The system operates through two independent, closed-loop air recirculation circuits: one dedicated to drying and the other to heating. Inside a rotating drum, the drying air comes into direct contact with the product, with airflow and residence time precisely controlled to ensure consistent and optimal drying results.

Meanwhile, the drying air is indirectly heated via a multi-tubular heat exchanger, which transfers heat from the hot air produced by the system’s generator—ensuring both energy efficiency and process stability.

Want to enhance your drying performance with a proven solution? Contact us today to learn more about the Oestergaard Hot Air Dryer and available configurations.