Electrically Heated Homocarb Pit Furnace

Tool Manufacturer To Expand Heat Treat Capabilities with Pit Furnace

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A tooling manufacturer is expanding with an electrically heated, steam atmosphere pit furnace for steam treating parts. The steam treating process creates a uniform blue-black finish on the surface of parts, which improves wear and corrosion resistance.

Lindberg/MPH, a manufacturer based in Michigan, shipped the steam treating furnace which has a maximum temperature rating of 1,250°F and work chamber dimensions of 22" diameter x 36" depth. The pit furnace is insulated with vacuum formed ceramic fiber modules that allow for rapid heat up rates and fast control response. A circulation fan distributes heat evenly throughout the chamber which ensures rapid and uniform heat transfer throughout the product load.

“This steam atmosphere pit furnace has the sufficient capacity to process a workload of 1,200 lbs," comments Kelley Shreve, application engineering manager at Lindberg/MPH. "This furnace was also designed with a custom powered lid for ease of loading."


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Homocarb Pit Furnace Dispatched to Power Industry

An electrically heated homocarb pit furnace was recently shipped to a manufacturer in the power industry. It is designed to work with a protective carbonaceous atmosphere. The top loading furnace, from Lindberg/MPH, is ideal for case carburizing, hardening, annealing, and carbon restoration at temperatures up to 1750°F. Gross workload is 1600 pounds, with temperature uniformity of +/-25°F at 1650°F.

The furnace can accommodate a work basket with a 25-inch diameter that is 48 inches deep, providing a clear work volume of 13.64 cubic feet. A retort minimizes atmosphere consumption and furnace-conditioning time between loads. The cover lid utilizes an electrically operated boom lift, which provides ease of loading and unloading.

(source: Lindberg/MPH)

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