Fixed bed dryers are made of carbon steel plate, with efficient ventilation and heating system, static drying chamber, intended for drying grains, medicinal herbs, spices, roots and tubers. Its drying takes place through the burning of firewood, in the indirect fire system, that is, without smoke in the product layer. It has manual temperature regulation, centrifugal fan model LIMIT LOAD, blades turned towards the back, rectangular drying camera, with otis screen frames to support the product and enable the highest rate of aeration.