Carburizing heat treatment furnaces are used to increase the surface hardness of a material by adding carbon to the metal surface. In this process, the metal material is heated to high temperatures, and the carbon content is increased using carbon gas or solid carbon sources. Carburizing significantly enhances the wear resistance of materials such as steel while leaving the inner part of the material softer and more formable. Carburizing heat treatment furnaces are designed to carry out this delicate process safely and efficiently.