Rotational molding has become one of the most important polymer processing methods for producing hollow plastic articles.The goal of this report is to study the rotational molding of polycarbonate (PC) reinforced polyethylene composites.Experiments were carried out on a laboratory scale uniaxial machine, which is capable of measuring internal air temperatures in the cycle.Before molding, PC and polyethylene were blended by a twin-screw extruder.The extrudate was cut into pellets.Polyethylene powder mixed with PC/polyethylene pellets were then mixed by a dry mixer and rotationally molded by a box mold.Characterization of molded part properties was performed after molding.