Hunan Xiangyi Laboratory Instrument Development Co., Ltd. (Hereinafter referred to as Xiangyi) is a high-tech enterprise specializing in the development and production of centrifuges and laboratory instruments, headquartered in Changsha, Hunan Province, specializing in the production of centrifuges for more than 60 years. The first ultra-speed refrigerated centrifuge (55000r/min) and the first high-speed refrigerated centrifuge (20000 R/min) in China were born in Xiangyi. Xiangyi attaches great importance to the research and development of new products. The research and development center of Xiangyi has gathered senior research and development talents of domestic laboratory instruments. The CMS control system independently developed has been used in more than 100,000 centrifuges worldwide. The 8x2200ml ultra-large capacity centrifuge developed and produced by Xiangyi has been widely used in biopharmaceuticals, central blood stations and fine materials industries. The carbon fiber rotor developed by Xiangyi has been serialized and recognized by more and more customers. The dual-channel temperature control system of DDC variable frequency compressor developed by Xiangyi with a number of patented technologies makes the temperature control accuracy of centrifuge reach ± 0.5 degrees Celsius, which solves the long-standing technical difficulty of temperature control under low speed and low load conditions of centrifuge. Xiangyi Technology R & D Center is equipped with centrifuge test center, environmental test room, noise test room, MCA (explosion) laboratory, clean assembly room, etc. All performance tests of Xiangyi centrifuge can be completed in Xiangyi Test Center.