Corrtherm Element Pit Furnace

Lindberg® Corrtherm® element pit furnaces feature direct electric heating in carburizing atmospheres. Thick cross-section, low-voltage Corrtherm heating elements completely eliminate the need for a furnace retort, even in high-carbon atmospheres. Because heat is radiated directly to the work, the chamber can be of very large diameter without sacrificing temperature uniformity.

Cyclone Electric Pit Furnace

Cyclone® electric-powered pit furnaces are capable of temperatures up to 1250°F (1400°F optional). The furnaces have a separate heating/fan chamber that provides heat to the work chamber. The workload is heated by a unique re-circulating convection heating system that forces pressurized air through the load at high velocity.

Cyclone Gas-Fired Pit Furnace

CYCLONE gas-fired pit furnaces are capable of temperatures up to 1250°F (1400°F optional). The furnaces have a separate heating/fan chamber that provides heat to the work chamber. The workload is heated when the supply gas is burned in the heating chamber then pressurized by a rapidly circulating fan. Pressure above the load, and suction below, force the heated gases through the load at high velocity with minimal temperature drop.

Cyclone Electric Retort Pit Furnace

Electric-powered pit furnaces with built-in retort available in single or two-stage nitriding systems. CYCLONE electric-powered pit furnaces are capable of temperatures up to 1250°F (1400°F optional). The furnaces have a separate heating/fan chamber that provides heat to the work chamber. The workload is heated by a unique re-circulating convection heating system that forces pressurized air through the work chamber at high velocity. A “suspended” fan shroud mates with either the basket or baffle to provide a closed path of circulation when the cover is closed.

Cyclone Gas-Fired Retort Pit Furnace

Gas-fired pit furnaces with built-in retort available in single or two-stage nitriding systems. CYCLONE gas-fired pit furnaces are capable of temperatures up to 1250°F (1400°F optional). The furnaces have a separate heating/fan chamber that provides heat to the work chamber. The work chamber is heated when the supply gas is burned in the heating chamber then pressurized by a rapidly circulating fan. Pressure above, and suction below, force the heated gases through the around the retort at high velocity with minimal temperature drop.

HOMOCARB® Pit Furnace

The Lindberg HOMOCARB® furnace is an electrically heated pit style furnace capable of temperatures up to 1750°F. The furnace is top loading with sealed-alloy retort. Ribbon-type electric heating elements provide high heat transfer efficiency. An internal fan provides excellent distribution of the atmosphere gases and ensures uniform carburization.

HOMO® Nitriding Pit Furnace

Lindberg HOMONITRIDING furnaces are electrically heated pit furnaces specifically designed for nitriding applications. They are available in single or two-stage nitriding systems.

HOMO® Tempering Pit Furnace

The Lindberg HOMO® tempering furnace is an electrically heated pit style furnace capable of temperatures up to 1400°F. The furnace is top loading with a gasket-sealed work chamber. Heavy-gauge alloy spiral heaters completely surround the work load providing high heat transfer efficiency.

Pit Furnace Companion Quench Tank

The Lindberg Companion Quench Tanks feature agitators situated in close fitting draft tubes; these in combination with flow straighteners and baffles positively direct the quenchantl to all parts of the load. Thus, the heat is rapidly removed from the work load to assure the best quench possible. Quench tanks are available for use with water, oil, polymer and salt.

Rod Overbend Element Pit Furnace

Lindberg Rod Overbend (RO) Pit furnaces are electrically powered pit furnaces suitable for a wide range of heat treat applications. The round cross-section of RO elements gives excellent long-term stability with minimal resistance change.

Steam HOMO® Pit Furnace

The Lindberg Steam HOMO® furnace is an electrically heated pit style furnace capable of temperatures up to 1250°F. Its compact size is ideal for direct production line installation. The furnace includes a steam injection system that produces work with superior wear and corrosion resistance and longer life.

Pit Furnace Companion Washer

Used independently or as part of a pit furnace line, Lindberg versatile washers provide fast efficient washing of heat treat loads whether they are integrated into a complete pit furnace system or used with other heat treat equipment. Water temperatures of up to 180°F.