TSI designs and manufactures Single-Pass Rotary Dryer Drums for use in the engineered wood and composite panel industries as well as in other applications such as biomass drying and biofuels production. Single-Pass Dryer Drums are based on the use of a large rotary drum with an internal flighting system connected to a heat source at one end and a material separation/exhaust system at the other end. This is the technology of choice for new engineered wood panel plants as well as new biomass plants, but can also be used to replace aging equipment in existing plants where they can usually produce some combination of more production, better consistency, better quality, and lower emissions.