Lindberg/MPH shipped a pit furnace to a leading manufacturer of mechanical components. The industrial furnace, which performs a steam-treating process on tool steels, has a maximum temperature rating of 1250F and a total load capacity of 3,700 pounds. The work chamber measures 39 inches in diameter with a depth of 36 inches. The furnace utilizes a high-limit controller to protect from over-temperature conditions and an actuator for atmosphere flow control. Steam treating produces an oxide film on the surface of the part, which improves wear and corrosion resistance and provides a uniform blue-black finish.