Sealed Quench Furnace


  • Therelek’s sealed quench furnace line consists of preheating and tempering furnaces, washing machines, stationary table, hydraulic lifts and charge transfer systems.
  • One can use our sealed quench furnace for various applications like case hardening and carburizing, carbonitriding, normalizing, annealing, ferritic nitro carburizing, annealing and stress relieving.
  • Components generally used are gears, shafts, bearings, fasteners, tools, castings, forgings, agricultural machinery components, construction and precision machinery components.
  • Heating system can be electrically heated or gas fired
  • Different capacity and batch sizes available to suit optimum production requirement
  • Furnace walls and hearth are brick lined to ensure minimum heat loss and low skin temperature
  • Our sealed quench furnace has pneumatic operated doors with wedge locking in the front and stainless steel inner casing.
  • Horizontal locking cylinders in the rear door ensures maximum sealing
  • An enclosed drive system with chains made of anti carburising alloy used in the charge transfer from heating to quenching chamber
  • Hydro pneumatically operated quench elevator and inner door provide smooth shudder-free movement and trouble free operation
  • Full automatic operation through latest control systems and PLCs
  • Extremely safe and simple to operate and maintain.
Need more details? Send enquiry!


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Temperature Range: 

Upto 1150°C

Standard Applications: 

Annealing / Annealing under protective atmosphereAustempering / Bainitic HardeningCarbonitridingCarburisingCase hardeningFerritic Nitro carburizing, Martempering, NormalizingCarbon Restoration


Vacuum Formed Ceramic Fibre Boards / Ceramic Fibre Blanket & Module / Refractory Brick Lining

Heating Media Options: 

Electric / Gas Fired / Oil Fired

Heating Elements: 

Nichrome Wire / Special Alloy Resistance Heating Wire / Silicon Carbide Rod Type

Instrumentation options: 

Thyristor, Programmable Temperature Controller, Temperature Recorder, PLC, SCADA, HMI