Forced Convection Chamber Furnaces from 1000 Liter electrically heated

Due to their robust and solid design even heavy loads can be heat treated.

Process Control

Function and equipment

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These forced convection chamber furnaces are available for maximum operating temperatures of 450 °C, 600 °C or 850 °C and are suitable for a wide range of processes.  Due to their robust and solid design even heavy loads can be heat treated. These furnaces are suited for use with baskets, pallets, and mobile furnace racks. The charging can be carried out with fork lift, pallet truck, or charging trolley. Charging can be simplified by roller conveyors, if necessary also motorized. All furnaces are available with electric heating or gas heating.

Standard Version for Models up to 600 °C

  • Tmax 450 °C or 600 °C
  • Electrically heated
  • Electric heating by means of heater coils
  • Horizontal air circulation (type ../HA)
  • High air exchange for perfect heat transfer
  • Temperature uniformity up to +/− 5 °C according to DIN 17052-1 
  • Furnace chamber lined with alloy 1.4301 (DIN)
  • High quality mineral wool insulation provides for low outer temperatures
  • Inside unlocking device for furnaces with walk-in work space
  • Furnace sizes suitable for common charging systems, such as pallets, baskets, etc.
  • Double-wing door for furnaces with an internal width of more than 1500 mm (450 °C models). Furnaces for higher temperatures and with smaller sizes are equipped with a single-wing door.
  • Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
  • Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
  • Defined application within the constraints of the operating instructions
  • Controller with touch operation B500 (5 programs with 4 segments each)
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
  • Freeware NTEdit for convenient program input via ExcelTM for WindowsTM on the PC
  • Freeware NTGraph for evaluation and documention of firings using ExcelTM for WindowsTM on the PC
  • MyNabertherm App for online monitoring of the firing on mobile devices for free download

Standard Version for Models 850 °C

  • Tmax 850 °C
  • Electrically heated
  • Electric heating with heating elements on supports tubes
  • Optimal air circulation for your charge by means of adjustable air outlets
  • Horizontal air circulation (type ../HA)
  • High air exchange provides for perfect heat transfer
  • Base frame with 500 mm charging height
  • Temperature uniformity up to +/− 5 °C according to DIN 17052-1
  • Air baffles made of 1.4828 (DIN)
  • High quality mineral wool insulation provides for low outer temperatures
  • Furnaces sizes perfectly suited to accommodate common charging systems, e. g. like pallets or pallet boxes
  • Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
  • Defined application within the constraints of the operating instructions
  • Controller with touch operation B500 (5 programs with 4 segments each)
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
  • Freeware NTEdit for convenient program input via ExcelTM for WindowsTM on the PC
  • Freeware NTGraph for evaluation and documention of firings using ExcelTM for WindowsTM on the PC
  • MyNabertherm App for online monitoring of the firing on mobile devices for free download

Additional equipment

Additional Equipment for Models up to 600 °C

  • Direct gas heating or upon request with indirect gas heating with radiation tube, e. g. for heat treatment of aluminum
  • Entry ramps for palet truck or drive-in tracks for entry of charging carts for models with floor insulation (not for 600 °C models)
  • Electro-hydraulic lift door
  • Cooling systems for faster cooling
  • Motor-driven control of air inlet and exhaust air flaps for better ventilation of the furnace chamber
  • Observation window and/or furnace chamber lighting (not for 600 °C models)
  • Optimization of the temperature uniformity up to +/− 3 °C according to DIN 17052-1
  • Charging systems or roller conveyors, also electrically driven provide for easy charging
  • Power-reduced version to save energy on request
  • Process control and documentation via VCD software package for monitoring, documentation and control

Additional Equipment for Models 850 °C

  • Direct gas heating into the outlet of the air circulation fan
  • Electro-hydraulic lift door
  • Cooling systems for faster cooling
  • Motor-driven air inlet and control of exhaust air flaps for better ventilation of the furnace chamber
  • Optimization of the temperature uniformity up to +/− 3 °C according to DIN 17052-1
  • Base frame for customized charging height
  • Charging systems or roller conveyors, also electrically driven provide for easy charging
  • Process control and documentation via VCD software package for monitoring, documentation and control

Technical specifications

Model Tmax Inner dimensions in mm Volume Outer dimensions1 in mm Circulation Heating Electrical
  °C w d h in l W D H rate m3/h power in kW2 connection
NA 1000/45 450 1000 1000 1000 1000 2015 2150 1700 3600 36 3-phase
NA 1500/45 450 1000 1500 1000 1500 2015 2650 1700 3600 36 3-phase
NA 1500/45B 450 1500 1000 1000 1500 2515 2150 1700 3600 36 3-phase
NA 2000/45 450 1100 1500 1200 2000 2115 2650 1870 6400 48 3-phase
NA 2000/45B 450 1500 1100 1200 2000 2515 2250 1870 6400 48 3-phase
NA 2010/45 450 1000 1000 2000 2000 2015 2200 2670 9000 48 3-phase
NA 2880/45 450 1200 1200 2000 2880 2215 2400 2670 9000 60 3-phase
NA 4000/45 450 1500 2200 1200 4000 2515 3350 1870 6400 60 3-phase
NA 4000/45B 450 2200 1500 1200 4000 3315 2650 1870 6400 60 3-phase
NA 4010/45 450 1000 2000 2000 4000 2015 3200 2670 9000 60 3-phase
NA 4010/45B 450 2000 1000 2000 4000 3015 2200 2670 9000 60 3-phase
NA 4500/45 450 1500 1500 2000 4500 2550 2750 2670 9000 60 3-phase
NA 7200/45 450 2000 1500 2400 7200 3050 2750 3070 9000 108 3-phase
                       
NA 1000/60 600 1000 1000 1000 1000 2015 2150 1700 3600 36 3-phase
NA 1500/60 600 1000 1500 1000 1500 2015 2650 1700 3600 36 3-phase
NA 1500/60B 600 1500 1000 1000 1500 2515 2150 1700 3600 36 3-phase
NA 2000/60 600 1100 1500 1200 2000 2115 2650 1870 6400 48 3-phase
NA 2000/60B 600 1500 1100 1200 2000 2515 2250 1870 6400 48 3-phase
NA 2010/60 600 1000 1000 2000 2010 2015 2200 2670 9000 48 3-phase
NA 2880/60 600 1200 1200 2000 2010 2215 2400 2670 9000 60 3-phase
NA 4000/60 600 1500 2200 1200 4000 2515 3350 1870 6400 60 3-phase
NA 4000/60B 600 2200 1500 1200 4000 3315 2650 1870 6400 60 3-phase
NA 4010/60 600 1000 2000 2000 4010 2015 3200 2670 9000 60 3-phase
NA 4010/60B 600 2000 1000 2000 4010 3015 2200 2670 9000 60 3-phase
NA 4500/60 600 1500 1500 2000 4500 2550 2750 2670 9000 60 3-phase
NA 7200/60 600 2000 1500 2400 7200 3050 2750 3070 9000 108 3-phase
                       
N 1000/85HA 850 1000 1000 1000 1000 2100 2160 1900 3400 40 3-phase
N 1500/85HA 850 1500 1000 1000 1500 2600 2000 1900 6400 40 3-phase
N 1500/85HA1 850 1000 1500 1000 1500 2100 2600 1900 6400 40 3-phase
N 2000/85HA 850 1500 1100 1200 2000 2700 2320 2100 9000 60 3-phase
N 2000/85HA1 850 1100 1500 1200 2000 2300 2800 2100 9000 60 3-phase
N 4000/85HA 850 1500 2200 1200 4000 2700 3700 2100 12600 90 3-phase
1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request. 
2Depending on furnace design connected load might be higher

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