Operating principle

The drying column is composed of air ducts buried in the grain.
The grain drops by way of gravity in a zig-zag pattern and is struck by a counter-current of warm air. The quantity of product discharged is regulated by a motorised electric extractor.
The product is collected in a hopper and sent down a vertical auger (optional bucket elevator), which repeatedly feeds the product into the drying column until the desired humidity level is reached (recirculating).
At the end of the drying process, the product is cooled and discharged by way of a bypass valve.