Demetra has been designed to optimize the operation of milling organic components used for the production of compost. The machine allow to add weighed quantity of different used material thanks to the electronic weighing system. Version on movable base and stationary are equipped with conveyor belt that comes out during expulsion of the product. This machine is available in 5 versions: Beta on movable base (2 horizontal counter-rotating augers), Beta stationary (2 horizontal counter-rotating augers), Beta trailed (2 horizontal counter-rotating augers), Penta on movable base (4 horizontal augers + 1 vertical auger), Penta stationary (4 horizontal augers + 1 vertical auger).