A pulp and paper manufacturer was using brushes, powered by pneumatic actuators, to clean pulp from rollers in the paper making process. The high level of pulp particulates in the atmosphere was causing the pneumatic actuators to fail due to pulp intake in the actuators and in air lines resulting in seal failures and on-going maintenance. Actuators with external rail designs were considered but dismissed as possible replacements as they would also become clogged with pulp.
