The Extracon is a storage and dosing system ideal for medium-sized silos, with a diameter of up to 8.5 meters. Designed to handle materials such as wood dust, sawdust, shavings, and chips, the system uses one or two progressive pitch screws equipped with peripheral milling teeth. These screws are installed on a central rotating turret that ensures excellent processing of the entire layer of material on the bottom, avoiding the demixing of the extracted flows. The machine guarantees high operating efficiency and great reliability with reduced maintenance requirements.