In the production process of plastic products, the conveying efficiency of plastic particles directly affects the stability and efficiency of the entire production line. With the continuous development of automation technology, plastic suction machines, as an efficient and convenient material conveying equipment, play an increasingly important role in plastic injection molding, extrusion, blow molding and other processing industries. This article will introduce the working principle, advantages, applications, maintenance and other professional knowledge of plastic suction machines in depth to help readers fully understand this important equipment.