Storage silos are structures designed to store grain and other material in bulk or powder. They are also used for storing other elements such as cement, calcium oxide, calcium hydroxide, activated carbon or plastic resins, among others. The most common storage silos are cylindrical with a metal support although there are also rectangular and square ones. They are similar to a tower and the material with which they are built can be metal, stainless steel, reinforced concrete, wood, reinforced plastic, fiberglass, etc. Generally speaking, they are made to measure, taking into account the product to be stored, the environmental conditions or their location. They can be closed or open, and the interior surface is smooth and lined with special coatings