流架是经过特殊设计的机架结构，可作为存储系统运行。负载放置在装有轮子和制动装置的倾斜导轨上。托盘放置在机架的高端，并流到结构的下端。该系统旨在支撑负载的重量，并保持对托盘向下运动的控制，而不管重量如何。按照将它们放入特定机架插槽的顺序（FIFO-先进先出）进行检索。

        Flow Racks are specially designed rack structures that operate as a storage system. Loads are placed on sloped rails fitted with wheels and braking mechanisms. The pallets are placed on the high end of the rack and flow to the lower end of the structure. The system is designed to support the weight of the load as well as maintain a control of the downward movement of the pallet regardless of the weight. The loads are retrieved in the order they are placed into that specific rack slot (FIFO - First In First Out).