Abstract: A spray gun nozzle may include a main body, and a spray hole is formed at a front end thereof. A tapered cylindrical guiding surface having gradually wider diameter from rear to front is extended forwardly from the spray hole, and the inclined angle of the guiding surface with respect to the spray hole is between 45 degrees and 75 degrees. A plurality of air grooves having U-shaped cross-section are formed on the outer periphery of the front end of the main body axially extending from a front end of the guiding surface, and the air grooves are spaced apart with the same interval. With the air grooves on the front end of the main body having the fixed groove diameter, the flow rate of the high-pressure airflow passing through the air groove is consistent.

Abstract: A spray gun nozzle may include a main body, and a spray hole is formed at a front end thereof. A tapered cylindrical guiding surface having gradually wider diameter from rear to front is extended forwardly from the spray hole, and the inclined angle of the guiding surface with respect to the spray hole is between 45 degrees and 75 degrees. A plurality of air grooves having U-shaped cross-section are formed on the outer periphery of the front end of the main body axially extending from a front end of the guiding surface, and the air grooves are spaced apart with the same interval. With the air grooves on the front end of the main body having the fixed groove diameter, the flow rate of the high-pressure airflow passing through the air groove is consistent.