Particleboard has changed to a high-tech board within the last years due to technological developments. Homogeneous and high quality flat flakes are the basis for an economic production of particleboards which meet highest technical demands. Pallmann invented the legendary wood chip flaker PZ, with counter-rotating knife ring which became synonymous for a whole industry. Even today the knife ring flaker PZKR is still the central machine within the size reduction of wood chips into wood flakes for the downstream production of particleboards. In combination with precutting the logs by means of drum chippers or disc chippers as well as feeding- and washing systems this results in a complete package for the efficient production of the required raw materials.