Thermal Heat Treatment Furnace Systems

SECO/WARWICK offers both air and atmosphere equipment for a wide variety of heat treatment processes including annealing, carburizing, nitriding, carbonitriding, ferritic nitrocarburizing, hardening, annealing, tempering, forging, stress-relieving, preheat and reheat.

The SECO/WARWICK Group has extensive experience in both batch and continuous systems including Chamber (Box), Bell, Car, Pit, Sealed or Integral Quench, Rotary Hearth, Roller Hearth, Pusher, Cast Link Conveyor, Mesh Belt and Walking Beam furnace systems.


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SECO/WARWICK’s atmosphere furnace systems are designed to operate under a wide variety of conditions:

  • Air
  • Neutral atmosphere such as nitrogen, argon, forming gas, neutral non-decarb atmospheres
  • Reactive atmospheres for carburizing, nitriding and other diffusion active atmosphere
  • Cryogenic temperatures of down to -150°C (-238°F)
  • High temperature systems up to 1300°C (2300°F)
  • Evacuated rough vacuum in retort furnaces down to 10-2 mbar

The product portfolio at a glance

  • Single and multichamber, multipurpose furnaces, with or without quench, atmosphere and material handling systems
  • Pit furnaces
  • Chamber (box) and car bottom furnaces
  • Rotary hearth furnaces
  • Mesh belt, cast link, muffle belt or hump back conveyors
  • Pusher furnaces
  • Roller hearth furnaces
  • Rotary retort furnaces
  • Endothermic (Endogas™), exothermic (Exogas™) atmosphere generators
  • Ammonia crackers (dissociated ammonia – Ammogas™)
  • Atmosphere controls and regulators
  • Auxiliary equipment such as washing machines and dryers
  • Oil, water and air quench systems
  • Material handling systems
  • Automated control systems
Product materials

 CaseMaster Furnaces

Multipurpose Sealed Quench Chamber Furnaces

 Endothermic Generators

Surface protection for hardening, brazing, sintering & gas carburizing

 Endothermic Generators – insert

 Nitriding Furnaces w/Zero Flow Technology

Horizontal and vertical retort nitriding furnaces

 Pit Furnaces

Typical Applications-automotive, aircraft, machine/tool, mining, bearings, marine components

 Rotary Hearth Furnaces

Typical applications – forging, automotive, aircraft, machine/tool products

 Vacuum Purge Retort Tempering Furnaces

Shorter cycles, increased production output and precise process control

 White Paper – Exothermic Generators

Atmosphere for annealing, brazing normalizing, drawing & tempering

 White Paper – Gas Nitriding Furnaces

Gas Nitriding, Ferritic NitroCarburizing & ZeroFlow® Process Control System

 White Paper – Mesh Belt Conveyor

Heat treatment equipment for copper & silver brazing

 White Paper – Roller Hearth Furnace Systems

SECO/WARWICK roller hearth furnaces are designed to continuously heat treat a wide variety of products economically with uniform, repeatable results.

 White Paper – Rotary Retort Furnace Systems

Heat treatment equipment for small parts-screws, nuts, bolts, nails, washers and coins

 Zero Flow Nitriding Technology

New method of controlled gas nitriding and nitrocarburizing