Rotary Hearth Furnaces

Large Rotary Hearth Furnace

  • rotary hearth furnace 
  • rotary hearth furnace diam. 3 m 
  • rotary hearth furnace diam. 5.5 m 
  • rotary hearth furnace diam. 6.5 m. 
  • https://www.youtube.com/watch?v=AUtnUXwqU0k 
Large Rotary Hearth Furnace

Electrotherm supplies continuous large rotary hearth furnaces for the mass producing forging process. Large rotary hearth furnaces are designed for continuous forging and ring rolling processes and assure temperature uniformity repeatability of not less than ±5°C (±9°F).  Those types of furnaces allow quick set up and fast relocation due to the wheels installed. They are well known for their accuracy, reliability, high performance for a long period of time and easy and quick maintenance.
The Large Rotary Hearth Furnaces offer seamless integration within the forging module – minimizing bottlenecks and allowing maximal efficiency of the press in one – piece – flow process. Electrotherm rotary hearth furnaces are perceived as best in the world due to the experience gained over many decades and based on profound understanding of its customer needs.

  • NADCAP
  • AMS 2750E
  • RPS953
  • MIL – H – 6875 H

  • Multi - zone heating
  • Reinforced steel outer frame
  • Mounted on shock absorbers to prevent vibration damage
  • SIC heating elements installed vertically all around
  • SIC hearth tiles or metal casted trays
  • Ceramic fiber thermal insulation
  • Digital temperature controllers and recorders with communication interface
  • One slewing bearing
  • "R" or "S" type thermocouples
  • Automatic greasing systems
  • Thyristors (single cycle) for linear power control
  • Construction meets the requirements for work in protective atmosphere
  • Indexing system with digital display indication

  • Gas fired radiant tubes
  • Wireless remote control for door opening/ closing
  • Digital display of rotary table in control room
  • Protective atmosphere system (endo, exo or mono) with flame curtain and monitored by an Oxy probe system
  • Automation that can be synchronized with automation equipment for complete "production cell" which includes automatic transportation manipulators.
  • Shock absorbers.
  • Compact and independent cooling system for cooling the sealing oil.
  • Automatic greasing system for hearth bearings.
  • Special cast material grids/trays, to lay the load on the hearth.
  • Automatic fire detection and extinguishment system installed and wired in the control cabinet, installed in all cells of the cabinet.
  • Paperless recorder.

Characteristics
    ELRH30 ELRH32 ELRH45 ELRH55 ELRH65
Hearth diameter mm 3000 3200 4500 5500 6500
in 120 126 180 217 260

Exterior dimensions

(Ø x H.)

mm 4400x2800   6300x2900   8100-2900
in 176x112   252x116   324x116
Max. temperature 1200 1200 1200 1200 1200
2192 2192 2192 2192 2192
Heating power KW 300   600   600
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