Abstract: A new high speed positive turner for high speed palletizer is presented. The clipping process, the basking process and the turning process are analyzed form the point of dynamics. The clipping time and the backing time are formularized and the two relation curves between the two parameters and the initial corners re given. In addition, the relation curve between corner and time is presented according to the numeric solution of the differential equation.

Key words: Dynamical analysis, Palletizing, Turner