FAM stacking machines are primarily used to fill bulk materials into stockpiles or to create various types of blending beds serving for homogenization of materials with different properties.
In longitudinal stockyards the most common are rail-mounted mobile stackers. The discharge booms of these stackers are often slewable and/or can be raised and lowered.
In circular stockyards (or circular blending beds), the stacker is positioned in the center so that it can pivot. The material is fed from the conveyor bridge located above the stockyard directly in the stacker´s axis of rotation.