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Ashing Furnaces with Integrated Exhaust Gas Cleaning

Ashing Furnaces with Integrated Exhaust Gas Cleaning

Ashing furnace L 40/11 BO Schematic presentation of air circulation in ashing furnace L 24/11 BO

The ashing furnace L ../11 BO is specially designed for processes in which larger sample quantities have to be incinerated. Fields of application are e.g. the ashing of food, thermal cleaning of injection molding tools or the determination of annealing loss. Another application is the debinding of ceramic products, e.g. after additive production.

The ashing furnaces have a passive safety system and integrated exhaust gas post combustion. An exhaust gas fan extracts flue gases from the furnace and simultaneously supplies fresh air to the furnace atmosphere with the result that sufficient oxygen is always available for the incineration process. The incoming air is guided behind the furnace heating and preheated to ensure good temperature uniformity. Exhaust gases are led from the furnace chamber to the integrated post combustion system, where they are postburned and catalytically cleaned. Directly after the incineration process (up to max. 600 °C) a subsequent process up to max. 1100 °C can take place.

  • Tmax 600 °C for the incineration process
  • Tmax 1100 °C for the subsequent process
  • Three-side heating (both sides and bottom)
  • Ceramic heating plates with embedded heating wire
  • Only fiber materials are used which are not classified as carcinogenic according to TRGS 905, class 1 or 2
  • Dual shell housing made of structured stainless steel provides for low outer temperature and high stability
  • Steel collecting pan protects the bottom insulation
  • Spring-assisted closing of the furnace door (flap door) with mechanical locking against unintentional opening
  • Thermal/catalytic post combustion, integrated in the exhaust channel, up to 600 °C in function
  • Temperature control of post combustion can be set up to 850 °C
  • Monitored exhaust air
  • Inlet-air preheated through the bottom heating plate
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

  • Process control and documentation via VCD software package for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions2 in mmMax. weight of hydrocarbonsMax. evaporation rateConnected loadElectricalWeight
 °Cwdhin lWDH1in gg/minkWconnection*in kg
L 9/11 BO11002302401709415575750751.07.03-phase60
L 24/11 BO1100280340250244906758001502.09.03-phase90
L 40/11 BO1100320490250405308258002002.511.53-phase110
1Including exhaust tube (Ø 80 mm)*Please see page 73 for more information about supply voltage
2External dimensions vary when furnace is equipped with additional equipment. Dimensions on request