Silos made of AISI stainless steel panels, coupled head-to-head with external ribs that make the structure self-supporting. In this way, the tie rods and internal flange joints typical of panel silos are superfluous, improving on the one hand the suitability for containing food raw materials (flours and sugars) and on the other hand the hydraulic seal. The regular polygonal shape, with no right angles, allows the contents to be emptied optimally. The ESA Agriflex Silo, as it is composed of panels, can be easily installed inside closed and covered spaces. It is normally made with a filtering fabric roof but on request it is also supplied with a steel cover.