The circulating Air Jet Milling is also called the racetrack jet mill, which is named after the racetrack-shaped design of the grinding cavity. The machine consists of a feed port, a feeding ejector, a mixing chamber, a venturi tube, a crushing nozzle, a crushing cavity, a primary and secondary classification cavity, a rising pipe, a return channel and a discharge port. Product Introduction Introduction: The circulating Air Jet Milling is also called the racetrack jet mill, which is named after the racetrack-shaped design of the grinding cavity. The machine consists of a feed port, a feeding ejector, a mixing chamber, a venturi tube, a crushing nozzle, a crushing cavity, a primary and secondary classification cavity, a rising pipe, a return channel and a discharge port. The material being crushed by the circulating tube elliptical jet mill is carried out in an elliptical racetrack-shaped cavity, a series of nozzles are arranged under the main machine, and the elliptical pulverizing cavity is installed upright on the frame.