As the combination of dryer and bin, it deals with almost all kinds of materials, especially adapting to farm and grain gathering. It works by batches and adjusts drying time for different moisture content. The drying happens at the top and the dried material falls to the bin section, at the bottom of which a cooling fan is set so as to cool the grain layer from down up. Countercurrent drying and cooling are very effective to grain which is sensitive to speed of heating and cooling. FEATURES: --Big capacity with maximum of 1000 bushel/h(25.5t/h); --Easy to adjust capacity. The max 11 rings are available; --Available with bins 21', 24', 30', or 36'diameters; --Can be used as dryer and bin, thus reduce costs; --Use boiled oil and natural gas as the fuel to guarantee complete burning and high thermal efficiency; --Burner and air heater are both computer controlled; --All the exhausted cooled air is recovered.