Powder granulation technology, is the main branch of powder processing. Ru sum, along with environmental improvement of production process automation level, granular powder products has become the necessary trend of powder reprocessing technology in the world. Study on technology and equipment of powder in China began in the mid 1980 of the 20th century, the former Ministry of chemical industry chemicals machinery first the Institute of powder technology for specialized research. After years of efforts, China powder granulation technology, has a certain level. Device can basically meet the size requirement of powder particles. At present, engaged in turning cold fall die forming device design, research and manufacturing units there are four or five, mostly by the former Ministry of chemical industry chemicals machinery developed by the Institute of powder engineering internal rotation system evolved derivative, Mingda machinery factory is one of them.