About

About Precision Machine & Manufacturing Precision Machine & Manufacturing (PMM) is known throughout the material handling industry as the premier Heavy-Duty Rotary Airlock Feeder, Rotary Valve Airlock, and Screw Conveyor Manufacturer! Often referred to by other airlock manufacturers as the "heavy-duty airlock guys," PMM's material handling components move the hard-to-handle materials that traditional cast-iron airlock manufacturers pass on! Moving massive amounts of abrasive, hot, sticky, and corrosive materials is our specialty! As the leading North American supplier of heavy-duty rotary airlocks and screw conveyors, PMM is narrowly focused on providing our heavy-duty components into manufacturing and processing plants operating within the following industries: Biomass & Coal-Fired Power Generation, Cement Manufacturing, Pulp & Paper, Agriculture, Wood, Heavy Metals, Minerals, Chemicals and Plastics processing. Precision Machine & Manufacturing has solved the "Abrasion Equation" and is the the ONLY U.S. based manufacturer up to the task! The more difficult the better!