Amarillo College Installs Dual Chamber Furnace to Teach Heat Treating

Amarillo College, in the Texas panhandle, has installed a Lucifer Furnaces Model HS84 Dual Chamber Furnace in their Manufacturing Technologies Department.

The furnace has two 12"H x 12"W x 24"L chambers mounted in a space saving arrangement. The upper hardening chamber heats to 2450°F while the lower tempering chamber reaches 1400°F. With a heavy gauge sheet steel reinforced shell and numerous safety features this rugged unit is well suited for the needs of an educational facility.

The upper chamber is insulated with 6 ½ inches of dry fit lightweight ceramic fiber and mineral wool block for energy efficiency and heated with silicon carbide elements mounted across the roof and below the hearth.

An SCR power supply provides a steady low amperage and voltage supply to the elements for longer life. A double pivot horizontal swing door keeps the hot face away from the user at all times. The lower chamber is lined with insulating firebrick, mineral wool backup, and a stainless steel liner, and heated with coiled heating elements in easy-to-replace holders mounted along the side walls.

A high volume rear mounted fan recirculates heat for uniform temperature. A Honeywell digital time proportioning temperature controller is mounted in a separate cabinet on the side.

Professor Kim Hays, Chair of the Manufacturing Technologies Department, chose the furnace as part of the school's program to teach the principals of heat treating of metals and describes the furnace as "ideal" for the school's needs. Specifically he notes that this unit met his requirements both in terms of space and budget. He praises the assistance he received prior to ordering the furnace and calls Lucifer's HS84 models "…the simplest most functional ovens that I have worked with. Everyone is impressed."

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