To meet new FDA regulations Re: tight temperature tolerances, Hinds-Bock Corp., Seattle, Wash., developed a triple-walled heated agitated hopper.
Heated oil is circulated between the inner and center walls. Insulation between the center and outer walls helps maintain the desired temperature. The hopper cover also aids in maintaining and controlling temperatures, while the gentle variable-speed agitator decreases hot and cold spots.
Optional add-ons include heated blending tanks, transfer pumps with heat-traced, stainless-steel lines and fillers with heated heads. Thermocouples document and record temperatures in the system's PLC, supplying documentation for stringent FDA audits. And, alarm systems alert users when temperatures fall outside pre-set parameters.