The GMP-251 automated rice packaging system produced by Harbin Jieman Mechanical and Electrical Equipment Co., Ltd. has the following features: 1 The process of blending rice and mixing rice is combined to simplify the production process and reduce 6 to 7 sets of lifting equipment. Breaking up the rice rate; 2 advanced material mixing concept, mainly based on gas mixing, machine mixing supplemented to ensure that the material breaks in the process of mixing to the lowest point, on-line mixing to achieve high efficiency of the machine; 3 Can be used alone as a quantitative packaging scale, can also be used for mixing and packaging of two kinds of materials, to achieve a multi-energy machine, saving processing costs; 4 using pneumatic technology and mechanical and electrical integration, fast and reliable action, fully meet the measurement accuracy requirements ;5 The new hanging structure saves operating space and facilitates the installation of other equipment. The machine is suitable for ratio packaging of rice, glutinous rice and quite granular food materials.