Schoenenberger became involved with the plastics industry at an early stage, as a very renowned manufacturer of pelletizing systems was located in the immediate “neighbourhood”.
Together with this machine- and plant manufacturer, they developed cutting rotors with carbide inserts. This was a special field for Hermann Schönenberger, because he had already been producing carbide knives for the paper and printing industry since the mid-60s.
What began at that time with a “niche product cutting rotors” developed into a rapidly expanding and important business field.
Also through the takeover of a granulation expert, the know-how in this area grew very strongly.