No. 1048 is a 350°F, cleanroom oven for the final cure of hard-coated optical lenses. Workspace dimensions of this oven measure 54” W x 63” D x 72” H. 60 KW are installed in Incoloy sheathed tubular heating elements, while a 6000 CFM, 5-HP recirculating blower provides horizontal airflow to the workload.
The Grieve cleanroom oven features 6” insulated walls, Type 304, 2B finish stainless steel interior with continuously back welded seams and an aluminized steel exterior which is finished with white epoxy paint and a #4 brushed finish stainless steel door cover. The oven is humidity controlled, including dew point sensor and steam humidifier.
Additional features include a motorized damper on exhaust for accelerated cooling, 24” x 24” x 6” thick HEPA fresh air filter with 2” prefilter, four (4) 30” x 24” x 12” thick stainless steel high temperature HEPA recirculating filters and minihelic pressure gauge across recirculation filters, as well as an 8” x 10” double pane window, interior oven light and a circuit breaker disconnect switch. The oven includes all safety equipment for handling flammable solvents (including explosion venting door hardware and 325 CFM powered forced exhauster) and NFPA 79 electrical construction (including NEMA 12 control panel and rigid conduit.)
Controls on the No. 1048 include a digital programming temperature controller to control temperature and humidity, manual reset excess temperature interlock with separate contactors and an SCR power controller.
