Pit Furnaces

Lindberg/MPH offers a wide variety of pit furnaces in fuel fired or electric powered configurations that are easy to operate and control. These units have rugged, reinforced shells and high quality insulation. They are engineered to provide long service life, ease of maintenance and optimum thermal efficiency.

Pit Vacuum Furnace

Pit Vacuum Furnace

Lindberg/MPH offers a wide variety of pit furnaces in fuel fired or electric powered configurations that are easy to operate and control.  

Key Specifications

  • Temperature range up to 1750°F
  • Work diameters up to 96” diameter
  • Vacuum levels down to 10 micron
  • Accelerated cooling available

Corrtherm Element Pit Furnace

Lindberg Corrtherm Element Pit Furnace - Page List

The Corrtherm pit furnace offers a unique combination of hig 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. 

Steam HOMO Pit Furnace

Lindberg Steam HOMO® Pit Furnace - Page List

Featuring a compact design, these units are ideal for direct production line installation. 

Key Specifications

  • Temperature Range: up to 1250°F
  • Steam or inert Atmosphere Capable
  • Lightweight ceramic module insulation
  • High reliability

HOMO Tempering Pit Furnace

 Lindberg HOMO® Tempering Pit Furnace - Page List

Key Specifications

  • Temperature Range: up to 1400°F
  • Dense load production capabilities with turbine-type fan and heavy duty motors
  • Proven components that deliver long service life
  • Inert or Combustible Atmosphere Capable

HOMO Nitriding Pit Furnace

Lindberg HOMO® Nitriding Pit Furnace - Page List

These electric-powered pit furnaces are available in single or two stage nitridng systems and are designed for applications that require high resistance to fatigue, impact and continuous metal-to-metal friction.  

Key Specifications

  • Chamber Size: 1.43 to 99.5 cubic feet
  • Lower finishing costs-minimizes warpage, distortion, galling, and seizing
  • Improved corrosion resistance-especially if parts are not subjected to a final finishing operation after nitriding

HOMOCARB Pit Furnace

Lindberg HOMOCARB® Pit Furnace - Page List

These electric powered pit furnaces are designed to work with protective carbonaceous atmosphere. 

Key Specifications

  • Temperature Range: up to 1750°F
  • Inert or Combustible Atmosphere Capable
  • Microprocessor-based controls
  • Optional automatic atmosphere control system

Cyclone Electric Pit Furnace

Lindberg Cyclone Electric Pit Furnace - Page List

The cyclone pit furnace has been used for tempering, normalizing, solution treatment of aluminum and annealing for many decades. 

Key Specifications

  • Temperature Range: up to 1250°F
  • Uniformity: ± 10°F
  • Inert or Combustible Atmosphere Capable
  • High velocity recirculating fan

Cyclone Gas-Fired Pit Furnace

 Lindberg Cyclone Gas-Fired Pit Furnace - Page List

The cyclone pit furnace has been used for tempering, notmalizing, solution in treatment of aluminum and annealing for many decades.  

Key Specifications

  • Temperature Range: up to 1250°F
  • Uniformity: ±10°F
  • Inert or Combustible Atmosphere Capable
  • Complete, prewired, freestanding control panel with disconnect switch

Cyclone Gas-Fired Retort Pit Nitriding Furnace

Lindberg Cyclone Gas-Fired Retort Pit Furnace - Page List

Key Specifications

  • Chamber Size: 4.8 to 118.6 cubic feet
  • Temperature Range: up to 1250°F
  • Inert or Combustible Atmosphere Capable
  • Optional afterburner

Cyclone Electric Retort Pit Nitriding Furnace

Cyclone Electric Retort Pit Furnace - Page List

Key Specifications

  • Chamber Size: 4.8 to 118.6 cubic feet
  • Temperature Range: up to 1250°F
  • Inert or Combustible Atmosphere Capable
  • Optional ammonia dissociators 

Pit Furnace Companion Quench Tank

Pit Furnace Companion Quench Tank

Key Specifications

  • Choice of electrical or gas-heated
  • Easy top loading chamber from overhead crane
  • Complete, pre-wired free standing control panel with disconnect switch
  • Sight gauge for quick check of liquid level with automatic low level arm

Rod Overbend Element Pit Furnace

Rod Overbend Element Pit Furnace

The Rod Overbend (RO) pit furnace gives you flexible, efficient performance in a variety of heat treat applications including annealing, normalizing and hardening at temperatures up to 1850°F (2000°F optional). 

Key Specifications

  • Temperature Range: to 1850°F
  • Inert or Combustible Atmosphere Capable
  • Standard endothermic atmosphere system
  • Easy-loading vertical chamber