Hardening Furnaces

The hardening heat treat process uses heat to increase the hardness of the surface of the material which in turn decreases its vulnerability. Hardening results in a tough outer case and a strong core. The hardening process is done in an industrial heat treat furnace.

Rod Overbend Box Furnace

The Rod Overbend (RO) electric box furnace gives you flexible, efficient performance in a variety of heat treating applications.

Key Specifications

• Temperature Range: to 2000°F

• Atmosphere Capable

• Fast heating rate

• Exothermic, dissociated ammonia, or nitrogen atmosphere systems

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Silicon Carbide Element Box Furnace

The Lindberg/MPH Silicon Carbide (SC) heating element box furnace is designed to deliver precision high temperature uniformity required in the treating of high alloy and high speed tool steels.

Key Specifications

• Temperature Range: to 2500°F

• Standard endothermic atmosphere system

• Heating element circuit power transformer with tap switches

• Optional carbon control with oxygen probe

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Corrtherm Element Electric Box Furnace

The rugged Lindberg/MPH Corrtherm electric box furnace offers a unique combination of high performance and low maintenance.

Key Specifications

• Temperature Range: to 1850°F

• Combustible atmosphere available

• Thick cross-section, low voltage Corrtherm heating elements

• Durable design for years of worry free use

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Gas-Fired Radiant Tube Box Furnace

For efficient, economical performance, the Lindberg Gas-Fired Radiant Tube Box Furnace offers a unique combination of high performance and low maintenance. It is designed for both light or heavy work loads.

Key Specifications

• Temperature Range: to 2000°F

• Efficient and economical performance

• Designed for light or heavy work loads, catering to fluctuating needs

• Automatic gas-air flame curtain burner

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Corrtherm Carburizing Pit Furnace

The Corrtherm pit furnace offers a unique combination of high performance and low maintenance at temperatures up to 1850°F.

Key Specifications

• Temperature Range: to 1850°F

• Inert or Combustible Atmosphere Capable

• Ideal for cell/JIT installations

• Low power consumption and fast cycle times

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Manual SL Integral Quench Furnace System

The Pacemaker SL is an electrically powered, integral quench furnace capable of temperatures up to 1925°F.

Key Specifications

• Temperature Range: 1925°F maximum

• High temperature range allows for treatment of many tool steel grades

• Lightweight ceramic block insulation

• Optional systems for endothermic or nitrogen-methanol atmospheres

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Roller Hearth Furnace

These roller hearth furnaces are designed for annealing, stress relieving, normalizing, tempering, hardening and other applications that require process temperatures up to 2050°F (1121°C) maximum. The roller hearth furnaces can be furnished in various widths and load-handling capabilities.
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Shaker Hearth Furnace

Lindberg/MPH electrically heated shaker hearth furnaces with quench tanks for processes such as hardening, carburizing of small fasteners, springs, and a variety of small, thin parts up to a maximum temperature of 1900°F (1038°C).
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Rotary Hearth Furnace

Electric or gas-fired rotary hearth furnace used primarily for gear hardening type applications that require process quenching. It comes standard with an endothermic gas atmosphere system. The temperature range for the rotary hearth furnace is 1850°F (1010°C) to 2300°F (1260°C).
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Gantry Line Furnace

Lindberg/MPH gantry furnaces are used extensively in the aerospace industry for the heat treating of long and massive parts. These systems enable you to harden, wash, temper, quench and atmosphere quench both efficiently and economically.

Key Specifications

• Maximum Temperature Range: up to 1850°F

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