Heating strip RDI

ceramic fiber

ZIRCAR Ceramics’ Fiber-Insulated Heaters, Type RDI, are rigid, high-powered combinations of high-quality resistance wire and ceramic-fiber thermal insulation. RDI heaters are designed to heat furnaces to a maximum temperature of 1300°C (2372°F) with power densities to 2200 w/ft². ZIRCAR Ceramics’ Fiber-Insulated Heaters Type RDI are high-powered combinations of high-quality FeCrAl resistance wire and high-purity ceramic-fiber thermal insulation. RDI heaters are designed to heat furnaces to a maximum temperature of 1300°C (2372°F) with power densities to 2200 w/ft². ZIRCAR Ceramics specializes in the design and manufacture of custom heaters for OEM furnace and thermal process equipment manufacturers as well as for end-users with unique and demanding radiant heater requirements. The resistance wire built into RDI heaters undergoes minimal grain growth as it is cycled and exhibits exceptional form stability at high temperatures. Coiled heating elements are firmly formed into ZIRCAR Ceramics’ Type AXHTM insulation. These hollow coils are recessed in open grooves in the supporting insulation, enabling a very high radiant efficiency. These features work together to minimize the difference between the element and chamber temperature, allowing them to operate at higher power and at higher temperatures for longer periods of time than other types of insulated heater systems. All ZIRCAR Ceramics’ Fiber-Insulated Heaters are 100% organic-free and will not smoke or outgas when heated.