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Nabertherm Burnout L 3/11 Furnace

£2,760.00
Style

These burnout furnaces are the perfect choice for daily work in the dental laboratory. These furnaces stand for excellent workmanship, advanced, attractive design and highest level of reliability. They are perfectly suitable for burnout of muffles and also for speed investments. These furnaces come equipped with either a flap door or lift door at no extra charge. The burnout furnaces come with a fiber insulation for 1100 °C or 1200 °C.

  • Tmax 1100 °C or 1200 °C
  • Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
  • Heating from two sides by ceramic heating plates provides for an optimal temperature uniformity
  • Thermocouple type N (1100 °C) or type S (1200 °C)
  • Ceramic heating plates with integral heating element which is safeguarded against fumes and splashing, and easy to replace
  • 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.
  • Optional flap door (L) which can be used as work platform or lift door (LT) with hot surface facing away from the operator
  • Adjustable air inlet integrated in door (see illustration)
  • Exhaust air outlet in rear wall of furnace
  • Solid state relays provide for low-noise operation
  • Controller with touch operation B510 (5 programs with each 4 segments) resp. controller R7 for L 1/12 (adjustable for one temperature)
  • MyNabertherm App for online monitoring of the firing on mobile devices for free download
  • Freeware NTEdit for convenient program input via MS Excel on the PC
  • Freeware NTGraph for evaluation and documention of firings using MS Excel on the PC
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
  • Defined application within the constraints of the operating instructions

    • Chimney, chimney with fan or catalytic converter (not for L 1 and L 15). For burn-out of muffles and speed investment materials we recommend the use of a catalyst
    • Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
    • Protective gas connection to purge with non-flammable protective or reaction gases (not available in combination with chimney, chimney with fan or catalytic converter), not gas tight
    • Manual or automatic gas supply system
    • Charging rack with closed or perforated trays for loading the furnace in two levels incl. holder for inserting/removing the trays up to a max. temperature of 800 °C and a max. loading weight of 2 kg for the L(T) 9/11 respectively 3 kg for the L(T) 15/11
    • Process control and documentation via VCD software package for monitoring, documentation and control

    Technical specifications 

    Model Tmax Inner dimensions in mm Volume Outer dimensions2 in mm Temperature uniformity of +/− 5K in the empty workspace5 Connected load Electrical Weight Heating time
      in °C1 w d h in l W D H3 w d h in kW connection* in kg in min4
    L(T) 3/11 1100 160 140 100 3 385 330 405+155 110 50 50 1.2 1-phase 20 40
    L(T) 5/11 1100 200 170 130 5 385 390 460+205 170 80 90 2.4 1-phase 30 50
    L(T) 9/11 1100 230 240 170 9 415 455 515+240 180 150 120 3.0 1-phase 35 65
    L(T) 15/11 1100 230 340 170 15 415 555 515+240 180 250 120 3.2 1-phase 40 75
                                   
    L 1/12 1200 90 115 110 1 290 280 430 45 60 40 1.5 1-phase 10 25
    L(T) 3/12 1200 160 140 100 3 385 330 405+155 110 50 50 1.2 1-phase 20 45
    L(T) 5/12 1200 200 170 130 5 385 390 460+205 170 80 90 2.4 1-phase 30 60
    L(T) 9/12 1200 230 240 170 9 415 455 515+240 180 150 120 3.0 1-phase 35 75
    L(T) 15/12 1200 230 340 170 15 415 555 515+240 180 250 120 3.2 1-phase 40 85
    1Recommended working temperature for processes with longer dwell times is 1000 °C (L../11) rsp. 1100 °C (L../12)*These furnaces are available for main voltage of 110 V - 120 V
    2External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.(up to 1,5 kW) resp. 200 V - 240 V, 1/N/PE or 2/PE
    3Including opened lift door (LT models)
    4Heating time of the empty and closed furnace up to Tmax −100 K (connected to 230 V 1/N/PE rsp. 400 V 3/N/PE)
    5Temperature uniformity of +/− 5 K with closed fresh-air inlet in empty work space according to DIN 17052-1 at working temperatures above 800 °C