For the high-speed and high-precision ton bag quantitative packaging of particles in the modified plastic particle industry, the overall design without dead angle of material storage is adopted, and the inner cavity of the equipment is designed with non-detachable fixing parts, so as to eliminate the possibility of items falling into the material; The weighing table can be lifted, which can be used for different bag lengths and sizes, and the whole can be moved. Features: Four-sensor module and other plane three-dimensional suspension The weighing adopts the parallel connection mode of four sensor modules, which has enhanced stability, high weighing accuracy and strong anti-interference ability. Pre-feeding feeding mechanism The feeder pre-feeding method is adopted, so that the equipment can maximize the speed of coarse feeding and greatly improve the weighing efficiency of the equipment under the premise of ensuring accuracy. Combined cylinder design, using combined cylinder to