Retort furnace structure

The structure of the well furnace consists of a cylindrical deep well for the furnace body, where workpieces are vertically loaded into the furnace for heating using a special crane. The fuel typically used is coal gas and oil. When electricity is the heat source, it is referred to as a well-type resistance furnace. Well furnaces are generally installed below the factory floor level, but they can also be placed above the floor level, or partially above and partially below.