Chamber Furnaces to Preheat Molds and Tools
Chamber Furnaces to Preheat Molds and Tools
Chamber Furnaces to Preheat Molds and Tools
Chamber Furnaces to Preheat Molds and Tools
Chamber Furnaces to Preheat Molds and Tools
Chamber Furnaces to Preheat Molds and Tools
Chamber Furnaces to Preheat Molds and Tools

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Chamber Furnaces to Preheat Molds and Tools

Specifications

SKU: N 7/H - N 641/13

These universal chamber furnaces with radiation heating have been specifically designed to withstand heavy-duty use in the tool shop and industry. They are particularly useful for processes such as tool making or for hardening jobs, e.g. annealing, hardening and forging. With help of various accessories, these furnaces can be customized to every application requirements.

  • Compact, robust design  construction with double-walled housing
  • Door can be opened when furnace is hot
  • Deep furnace chamber with three-sides heating: from both side walls and bottom
  • Heating elements on support tubes ensure free heat radiation and a long service life
  • Bottom heating protected by heat-resistant SiC plate (models N 81/.. - N 641/.. also with side SiC plates)
  • Stainless steel upper door jamb protects furnace structure when furnace is opened hot up to model N 87/H. Models N 81/... - N 641/.. with compact stainless steel door.
  • Temperature uniformity up to +/− 10 °C according to DIN 17052-1
  • Low energy consumption due to multi-layer insulation
  • Base frame included in the delivery, N 7/H - N 17/HR designed as table-top model
  • Exhaust opening in the side of the furnace, or on rear wall of chamber furnace in the N 31/H models and higher
  • Parallel swinging door (user protected from heat radiation) up to N 87/H guided downwards, from N 81 guided upwards 
  • Door movement cushioned with gas dampers/struts
  • Heat resistant zinc paint for protection of door and door frame (for model N 81 and larger)
  • 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
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
  • Controller with touch operation B500 (5 programs with 4 segments each)
  • 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
  • Side heating elements protected with SiC tiles
  • Thermocouple inlet with a diameter of 15 mm in the side
  • Pneumatic door opening, controlled by foot pedal
  • Protective gas boxes for heat treatment under non-flammable protective and reaction gases
  • Gas feed fittings
  • Charging devices
  • Charge control 
  • Process control and documentation via VCD software package for monitoring, documentation and control
TECHNICAL SPECIFICATIONS
Model Tmax Inner dimensions in mm Volume Outer dimensions4 in mm Heating Electrical Weight
  °C w d h in l W D H power in kW3 connection in kg
N 7/H1 1280 250 250 140 9 800 650 600 3.0 1-phase 60
N 11/H1 1280 250 350 140 11 800 750 600 3.5 1-phase 70
N 11/HR1 1280 250 350 140 11 800 900 600 5.5 3-phase2 70
N 17/HR1 1280 250 500 140 17 800 900 600 6.4 3-phase2 90
                       
N 31/H 1280 350 350 250 30 1040 1030 1340 15.0 3-phase 210
N 41/H 1280 350 500 250 40 1040 1180 1340 15.0 3-phase 260
N 61/H 1280 350 750 250 60 1040 1430 1340 20.0 3-phase 400
N 87/H 1280 350 1000 250 87 1040 1680 1340 25.0 3-phase 480
                       
N 81 1200 500 750 250 80 1300 2000 2000 20.0 3-phase 950
N 161 1200 550 750 400 160 1350 2085 2300 30.0 3-phase 1160
N 321 1200 750 1100 400 320 1575 2400 2345 47.0 3-phase 1570
N 641 1200 1000 1300 500 640 1850 2850 2650 70.0 3-phase 2450
                       
N 81/13 1300 500 750 250 80 1300 2000 2000 22.0 3-phase 970
N 161/13 1300 550 750 400 160 1350 2085 2300 35.0 3-phase 1180
N 321/13 1300 750 1100 400 320 1575 2400 2345 60.0 3-phase 1600
N 641/13 1300 1000 1300 500 640 1850 2850 2650 80.0 3-phase 2500
 

 



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