Light duty mobile shelves, also calls the shelves, put aside plate made of light and medium shelves descended, dense structure, only one channel (around 1 m wide), sealing good, beautiful and practical, safe and reliable, is a kind of shelves, the highest space utilization and break up electric two types. Guide rail can be embedded in the ground or installed on the ground, shelves base along the guide rail, shelves installed on the base, through the chain transmission system to make every row of shelves for easy move smoothly, the goods by artificial access. The shelf height is generally no more than 3 meters. It is mainly used in archive, library, bank, enterprise reference room, electronic light industry and other industries.