This is a new model independently developed by fully absorbing and incorporating advanced foreign technologies while taking into account actual domestic requirements. It features a rational structural design, stable and reliable operation, and easy operation. The entire machine has no cleaning dead corners or exposed screws, meeting sanitary-grade requirements. The discharge butterfly valve is equipped with an anti-misoperation device, allowing convenient disassembly and assembly as well as easy cleaning, effectively ensuring production safety. The sizing machine can be raised or lowered together with the conical hopper to any required process height, facilitating sealed connection with equipment in the next process. This significantly controls dust dispersion and cross-contamination, reduces material loss, prevents segregation, optimizes the overall production process, and fully complies with GMP requirements for pharmaceutical production.