The Smart single facer is a high speed, quick flute change, cassette machine, housed in a very heavy duty, rigid cast iron frame. The massive, low-vibration construction, and low center of gravity ensure the smoothest running on all flute types. The finely adjustable pressure roll is vertically off-set from the corrugating rolls to further reduce vibrations.http://www.zycartonmachine.com/box-stitching-machihne/