Made for Hard-Working Americans by Hard-Working Americans! Precision Machine & Manufacturing is the industry leader and Original Equipment Manufacturer of Heavy-Duty Rotary Feeders, Airlocks, and Screw Conveyors for the biomass, wood products, and agriculture industries. PMM specializes in creating solutions that move the most difficult and challenging material types! Companies no longer have to be held down by high maintenance costs, decreased throughput, and unplanned downtime! Partner with PMM and allow us to come alongside and deliver a solution that will free the flow of the most difficult materials!! Over-Engineered & Over-Built- Guaranteed!