Metered/Coating Rods - The What, When, and Why, 2002 Metered Size Press Forum
Since the introduction of the rod metered size press (RMSP) in the 1980’s, the favorable operating economics and versatility of these machines has encouraged development of a wide range of new coatings for an ever wider range
of paper grades. This proliferation of grades and coatings has given rise to many new challenges in maintaining runnability. Metering rod manufacturers have kept pace by developing new thread profiles to optimize the application of these new coatings. This paper briefly traces the history of the modern metering rod and discusses some of the problems that can occur in today’s RMSP coating applications, their possible causes and what might be done to correct them.