Across International muffle furnaces offer a benchtop solution for safe and reliable heating. These compact, front-loading, furnaces are built with Mitsubishi alumna fiber and embedded with Kanthal heating elements. All AI muffle furnaces also feature a dual layered internal housing to ensure the highest level of temperature conformity. Popular applications include fusing glass, creating enamel coatings, heat treating, as well as ashing, ignition, and combustion tests.