One Zhejiang cleaning Equipment Co., Ltd. is manufacturing the car vacuum cleaner manufacturers, planning 76 sets of injection molding machine material centralized conveying system. This case is a large number of machines, a large amount of material, a wide variety of materials, transportation distance, product diversity and other issues are the focus of the program discussion, after many discussions and the customer finalized the case. The workshop has 76 IMM and 8 groups of blower to achieve the functional requirements of centralized feed and centralized air supply. In the feeding part, 8 uses and 1 standby Roots vacuum generating unit is adopted to ensure the continuous and uninterrupted supply of materials. A steel platform is set up in one corner of the workshop to centrally arrange the raw material treatment area for easy operation and management.