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Typ HT



Retort Type Mesh Belt Furnace Type HT






  • Operating temperature range 300°C - 1180°C
  • High temperature furnace with metallic muffle (retort) and advanced ceramic fibre insulation
  • Mesh belt of chromium-nickel - alloyed wire of variable design
  • Conveyor belt advances on metallic or ceramic sliding rails
  • Protective / reactive atmosphere contained within muffle (retort)
  • Heating via: recuperated gas burners or electric heaters
  • Convective gas quench or fast cooling and/or slow cooling via water jacketed cooling channel
  • Parts loading externally of furnace on designated entry loading table


HT Skizze




ht_gas quench

Capacity range and applicable processes:



  • Up to 1000 kg/hr depending upon temperature and process
  • Austenitising
  • Blueing
  • Brazing
  • Hardening
  • Nitrocarburising
  • Normalising
  • Oxydising
  • Recristallisation annealing
  • Reducing
  • Soft annealing
  • Solution annealing
  • Spheroidize annealing
  • Tempering / stress relieving
  • Combined with quenching in: Gas











ht_furnace during factory assembly


Line Arrangement / Companion Equipment:



  • Automatic loading and unloading equipment
  • Automatic handling-, transport- and transfer equipment
  • Vibratory transfer chutes
  • Entry- and exit vestibules
  • Fixtures for batch type operation
  • Pre-washer with de-phosphating zone
  • Washers of:
    - continuous belt type design
    - straight through rotary drum type
  • Gas quench module
  • Cyrogenic sub-zero treatment units (down to -80°C)
  • Tempering and stress relieving furnaces
  • Zn, Sn and Al - filtration and atmosphere cleaning systems
  • Integrated or external protective gas generators
  • Atmosphere control systems
  • Control cabinet with PLC control and operator panel
  • Supervisory PC system