NOVELTY - Processing wind power wheel hub without a densener comprises (i) producing a die, (ii) producing a sand mold, and (iii) casting and molding. In the step (ii), an injection gating system with a completely open bottom is used, an ingate is designed into a round disc shape, and a quantitative cork sprue gate is used, where the ratio of each component, i.e., straight (F): transverse (F): internal (F) is 1:(1.5-2):(25-28). A vent hole is arranged at the peak of the upper top surface of a cast, where the total sectional area of the vent hole is more than that of an internal sprue.    USE - The method is useful for processing the wind power wheel hub without the densener.    ADVANTAGE - The method ensures large-scale production; is simple and cost-effective; and is suitable for low temperature bulb iron casting for producing large amount of wind energy.    DETAILED DESCRIPTION - Processing wind power wheel hub without a densener comprises (i) producing a die, (ii) producing a sand mold, and (iii) casting and molding. In the step (ii), an injection gating system with a completely open bottom is used, an ingate is designed into a round disc shape, and a quantitative cork sprue gate is used for a sprue gate on an upper sprue, where the ratio of each component, i.e., straight (F): transverse (F): internal (F) is 1:(1.5-2):(25-28). A vent hole is arranged at the peak of the upper top surface of a cast, where the total sectional area of the vent hole is more than that of an internal sprue. A feeder head is arranged on the top surface of the cast, where the height of a single feeder head is more than 400 mm. In the step (iii), the casting speed of melted iron entering into a mold cavity is maintained at 0.5-1 m/second, the casting time is maintained within 150-210 seconds, and the casting temperature is maintained at 1300-1310 degrees C for casting and molding.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the wind power wheel hub without the densener.