The honeycomb warehousing system for large quantities and high access speeds. honeycomb makes the best use of the available space - even when different cassette widths and heights are required - both for bar and sheet-metal materials. The minimum approach dimensions of the storage and retrieval units also create benefits. fehr set new standards with the principle of the cassette-swapping system, which was launched in 1974: two cassette gripping systems achieve performances of up to 60 cassette changes per hour. fehr honeycomb is easily able to handle warehousing tasks with cassette spaces ranging from 1000 to over 6000.