In food processing, pharmaceuticals, microelectronics and other industries, some production links need a clean production environment, such as lubricating oil leakage, metal debris, dust, paint scraping, metal corrosion and other pollution is not allowed. Aiming at these special occasions, we have developed the clean crane specially. The clean grade can reach 100 static class and 1000 dynamic class. It provides a reliable guarantee for the logistics transportation of all kinds of clean factories.