Precision has decades of experience supplying rotary feeders to meter and airlock fuel, screw conveyors for moving fuel from bins to the boiler, and rotary valves for ash and lime handling.  We understand the punishing demand that biomass fuel places on feeders and screw conveyors.  We have unique designs and materials that give power plant operators the durability and reliability that is critical in this business. ​

Case Study: "We used to change our rotary valves every 3 months. Now, due to Precision Machine’s experience with advanced metallurgy and quality control, we do so only once per year..."


Though Colmac takes care to make sure that the biomass provided by its suppliers is of high quality and is cut into small pieces so as to limit stress on the material handling machinery, the internal biomass feed system still sees considerable wear.




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Eugene, Oregon

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