An underground state-of-the-art archive in Minneapolis is a safe haven for some of the most valuable cultural documents available.

At the University of Minnesota, Elmer L. Andersen Library and Archives, documents arrive 50 feet below bedrock with the help of a PFlow conveyor system.

Documents can also be returned to the circulation area from the archive.

The roller conveyors provide both infeed and discharge at each level and continuous operation in both directions.

The system also services the shipping dock and includes a flexible, telescoping conveyor. This allows for loading and unloading of library materials directly from the trucks.