Dr. Rainer Köhnlechner
The author is managing partner of Hamos GmbH, Penzberg, Germany and owner of Wersag GmbH & Co KG in Siebenlehn, Germany. He acquired Hamos in 1987, and the first KWS electrostatic metal separator was sold by the company in 1992. Hamos presented the first electrostatic separator for black plastics in 2001.