Rubber-Lined Rotor & Stator for Coarse and Corrosive Pulp Where the feed is coarse and the pulp is acidic, a rubber-lined rotor and stator outlasts metal and polyurethane. This XCF-II-16 set is the robust choice for rougher duty, absorbing impact from large particles while resisting the corrosive slurries common in copper-cobalt and polymetallic circuits. Built for these duties Coarse or under-ground feed with lumps that chip harder liners. Acidic or high-chloride pulp where