Single screw screw extruder SJW-70

compoundingfor PVCflexible

reciprocating single screw compounding extruder structure application Abstract: China’s first SJW-70 reciprocating single screw compounding extruder was successfully developed in 2000. This technology is internationally advanced and fills a domestic gap. The advent of this machine not only ended my country’s long-term dependence on imported Buss Kneader compounding extruders, but also brought my country’s plastic machinery processing level close to the world’s advanced level. 1. Overview Jiangsu Xinda Tech Limited has successfully developed China’s first SJW-70 reciprocating single screw compounding extruder. It has been put into the company’s production of black or colored masterbatches for polyester and polyolefin fibers. It also has been running continuously for more than ten months, and the machine is running stably. The various masterbatches produced are evenly dispersed in the matrix resin, especially the black masterbatch with a carbon black concentration of 30%, which is evenly dispersed in the black chemical fiber. The structural features of the machine are: the threads on the screw are not continuous, and the threads are interrupted three times per turn. The barrel is split and can be opened for rapid cleaning of materials; three rows of kneading pins are installed on the inner surface of the barrel according to a certain pattern, which can be adjusted and replaced; the pins with holes can be equipped with sensors. The screw elements are mounted on the screw shaft in the form of the segmented type according to different uses, and the barrel can be heated or cooled, etc.