Abstract: Plants processor and crop heads separator device for combine harvesters, preferably applicable in corn and sunflower crops, and adaptable to row crop harvesting headers currently under use, composed by at least one roll with its rotational axis positioned in angle as regards the forward movement of the header. This device is applicable to combine harvesters equipped with a row crop harvesting header with gathering zones, each of which has one, two, three or more rotating rolls and with a special feature as the rotational axes of the said rolls positioned in angle as regards the forward movement of the combine harvester and where at least one of them rotates opposite to the forward movement of the combine harvester.