Fluent shelves are equivalent to fluent shelves. Products are often evolved from medium-sized cross-beam shelves. Goods are transported from the distribution terminal to the pick-up terminal through raceways. Goods slide automatically by means of gravity. The "first in first out" operation can be realized with low cost, fast storage speed and high density. Usually used in the enterprise's lean production line operation.

Fluent shelves generally use roller-type aluminum alloy or sheet metal fluent bar, which is placed on a certain slope (about 3 degrees). Goods are usually packed in paper or placed in plastic swing boxes, using their self-weight to realize the flow of goods and first in first out. Goods are transported by car, accessed manually and accessed conveniently. The load of each layer of unit shelf is usually about 100KG, the height of shelf is less than 2.5 meters, and products are placed in several compartments.

It is suitable for process conversion on both sides of assembly line, assembly line production, sorting operation in distribution center, etc. It can be equipped with electronic tags to realize information management of goods. It is widely used in automotive, pharmaceutical, chemical and electronic industries.