Besides the core flow system and the central slotted column system for cohesive materials, we have developed a system that is able to handle materials with a very small particle size. The unique Eurosilo shutter column system in our storage facilities guarantees flawless filling and reclaiming of fly ash or electric arc furnace dust (EAFD) as produced in recycling plants. These products tend to fluidise during the filling process of the silo. By programming the opening and closing of the shutters, these products can be handled in a controlled way.