The Invention relates to a device is threshing for Post Harvest of small grains or Seeds of quinoa, especially for the low level of production by Small producers, featuring a Lightweight Design, Small size, portability, Low consu Mo Energy and smaller amount of operation staff required.It presents a design of two-stage horizontal rotor housed in a housing or Casing and driven by a single motor. The Action of separation of grain of panicle is performed through the Joint Action of a stationary screen, The Inner surface of the cover and a set of teeth and teeth fixed on the Rotary threshing rotorLa represente invencion se refiere a un aparato para la trilla pos-cosecha de granos o semillas pequenos, especialmente de quinua, destinada a la produccion a baja escala por parte de pequenos productores, que presenta un diseno ligero, de reducidas dimensiones, mayor transportabilidad, menor consumo energetico y menor cantidad de personal de operacion requerido. La misma presenta un diseno de rotor horizontal de dos etapas alojado en una cubierta o carcasa e impulsado por un unico motor. La accion de separacion del grano de la panoja se realiza mediante la accion conjunta de una zaranda estacionaria, la superficie interna de la cubierta y un conjunto de muelas y dientes fijados al rotor rotativo de trilla
