Installed at the point where the belt is leaving the discharge pulley, secondary belt cleaners remove residual fines that remain on the belt past the primary belt cleaner. Its location is typically close enough to the material trajectory that the cleanings will return to the main material stream.
Additional tertiary belt cleaners can be installed to provide final cleaning. These cleaners can be the same model as the secondary belt cleaner, or of a different design to allow efficient cleaning and maintenance within the available space.
As these belt cleaners are typically installed away from the pulley, they should be placed at or near a point where the belt is against a roller. Firm support prevents the cleaning pressure from raising the belt line and reducing cleaning efficiency.