Untitled record

The present invention refers to a rotor (90) applied to an extractor-fan assembly (80) for agricultural machinery, especially for sugar cane harvesters, the rotor (90) comprises a set of blades (1) fixed to a cube (2). Each of the blades (1) has a construction such that it defines an engagement angle (3) that can range between 47 and 59 degrees, a mean angle (4) that can range between 53 and 69 degrees, and an exit angle (5) which can range from 66 to 78 degrees. Due to the construction angles of the blades (1), the air stream comes into contact with the rotor (9) smoothly, without turbulence in its movement, which results in high efficiency and effectiveness of the extractor-fan assembly (80 ).