CPM Die Roller Shells. Given CPM rich history of pellet pressing starting way back time, it is no mystery that our dies and rollers are as tough and robust as our pellet mills. Over the years, our CPM counterpart CPM Crawfordsville have improved and invested heavily in enhancing our dies. Their research in metallurgy and die development have ... Optional Features. Positive direct gear drive provides a 98% energy transfer. Rounded cast gear case with internal ribbing for quieter operation. Segmented die clamps for quicker die changes. Metal-to-metal seals between components. Modular gearbox design for production flexibility. Replaceable quill flange. Stand-alone oil lubrication system. CPM equipment solutions give you t he CPM a dvantage. If high-quality products and unbeatable efficiency are your top priorities, CPM has what you need for grinding, size reduction and beyond. Products engineered by CPM meet the demands of virtually every application in processing industries.