Extruder with twin screw feeding unit consist of twin screw , taper barrel transmission device etc , it is mainly used to feeding lump material , no need to make rubber sheet form from mixing mill , we can feed material directly come from kneader or banbury as lump material , twin screw feeding unit will push material into extruder , save labor force , save production cost , simplify production process , higher working capacity , higher mixing quality , suit for different rubber industry etc .