Flow Controller FC3 – Continuous gravimetric dosage of free ﬂowing bulk solids. In many cases free flowing products are dosed dosed or mixed volumetrically. Because of varying product characteristics volumetric dosage is often inaccurate and error-prone. These error influences can be largely excluded by application of a smart regulated slider with baffle sensor. The Flow Controller combines these elements in a compact design. Because of that, it can easily be installed in between silo hopper and discharge conveyor. Thanks to a reliable and mature electrical slider gear the capacity may be regulated quickly and very smoothly. Apart from this the Flow Controller has several functions to observe the mass flow. The Flow Controller requires full product stock above the slider.