Quartz Infrared Heaters

The products in this family transfer heat by radiation rather than contact. The infrared wavelength is chosen according to the absorption characteristics of the material to be heated; the right wavelength can make a twofold difference in efficiency at the same power. In furnace applications above 1000 °C, ceramic heating elements such as silicon carbide and MoSi₂ are used instead of metallic wires.

Selection Criteria

Short wave (quartz) offers fast response and high intensity; it suits paint drying and thermoforming. Medium and long wave (ceramic) gives softer, more uniform heating; it is preferred in plastic forming and food applications. For furnaces, the maximum temperature, the atmosphere (oxidising, reducing, vacuum) and element life are evaluated together.