Muffle Furnace Manufacturers in Ahmedabad Brand: Hema A muffle furnace is a type of high-temperature oven used to heat materials in a controlled environment. It is primarily used in laboratories and industrial settings for processes like Ashing, sintering, and annealing. The furnace is designed to isolate the material being heated from direct contact with the flame or heating element. This isolation ensures that the material is subjected to uniform heat without contamination from the combustion process. The muffle furnace typically operates at temperatures ranging from 300°C to 1, 800°C.