The i-Collector system is completely filled with standard totes or trays. These may be empty, but all are needed to fulfil the automatic storage and retrieval process of shifting in and out the required tray or tote as shown in the animation.
One work method in which every channel is filled with the same product trays or totes and the empties are used for the retrieval. This method is for i-Collector type called OBS, organised buffer.
The other workmethod in which the product trays or totes stored randomly . The retrieval is based on intelligent shifting of trays or totes. This method is for i-Collector type called RBS, random buffer.