Chamber Furnaces with Brick Insulation or Fiber Insulation

LH models: multi-layered insulation of light refractory bricks and special backup insulation.

LF models: high-quality fiber insulation with corner bricks for shorter heating and cooling times

Process Control

Function and equipment

LH120-13DB-1.png
LH216_12
LH60_13DB50
LH30_12
LF60_14
LH30_14
LH60_12SW
LH120_12_fmt.jpg
Begasungssystem
LH_gemauerter_Boden.png
Ausfuehrung_LF_Modell

In the standard version, the LH .. and LF .. models are designed for sintering processes in air. For debinding and sintering processes on a laboratory scale, these furnaces can be equipped with the DB50 laboratory version designed for low evaporation rates. By introducing fresh air, the furnace is operated with overpressure during the debinding phase.

  • Tmax 1200 °C, 1300 °C, or 1400 °C
  • Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
  • High furnace chamber with five-sided heating for very good temperature uniformity
  • Heating elements on support tubes ensure free heat radiation and a long service life
  • Controller mounted on furnace door and removable for comfortable operation
  • Protection of bottom heating and flat stacking surface provided by embedded SiC plate in the floor
  • LH models: multi-layered insulation of light refractory bricks and special backup insulation
  • LF models: high-quality fiber insulation with corner bricks for shorter heating and cooling times
  • 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.
  • Motorized exhaust air flap
  • Freely adjustable air inlet integrated in furnace floor
  • Base included
  • Defined application within the constraints of the operating instructions
  • Controller with touch operation B500 (5 programs with each 4 segments)
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
  • Freeware NTEdit for convenient program input via Excel™ for Windows™ on the PC
  • Freeware NTGraph for evaluation and documention of firings using Excel™ for Windows™ on the PC
  • MyNabertherm App for online monitoring of the firing on mobile devices for free download 

Debinding Package DB50 

  • Laboratory version for applications with low evaporation rates for chamber furnaces LH 30/.. to LH 120/..
  • Fresh air fan for introducing a defined amount of fresh air
  • Exhaust gas and exhaust air discharged via one outlet with a motor-driven flap in an exhaust hood

 

Additional equipment

  • Parallel swinging door (user protected from heat radiation)
  • Lift door with electro-mechanic linear drive for opening when hot
  • Cooling system to cool the furnace with a defined temperature gradient or with a preset fresh air volume. Both operating modes can be switched on and off for different segments by means of the extra function of the controller.
  • Protective gas connection to purge with non-flammable process gases
  • Manual or automatic gas supply system
  • Stainless steel exhaust hood as interface to customer’s exhaust system
  • Process control and documentation via VCD software package for monitoring, documentation and control

Technical specifications

ModelTmaxInner dimensions in mmVolumeOuter dimensions1 in mmConnectedElectricalWeight
 in °Cwdhin lWDHload in kWconnection*in kg
LH 15/12120025025025015680860123053-phase2170
LH 30/12120032032032030710930129073-phase2200
LH 60/121200400400400607901180137083-phase300
LH 120/12120050050050012089011801470123-phase410
LH 216/12120060060060021699012801590203-phase470
            
LH 15/13130025025025015680860123073-phase2170
LH 30/13130032032032030710930129083-phase2200
LH 60/1313004004004006079011801370113-phase300
LH 120/13130050050050012089011801470153-phase410
LH 216/13130060060060021699012801590223-phase470
            
LH 15/14140025025025015680860123083-phase2170
LH 30/141400320320320307109301290103-phase2200
LH 60/1414004004004006079011801370123-phase300
LH 120/14140050050050012089011801470183-phase410
LH 216/14140060060060021699012801590263-phase470
            
LF 15/13130025025025015680860123073-phase2150
LF 30/13130032032032030710930129083-phase2180
LF 60/1313004004004006079011801370113-phase270
LF 120/13130050050050012089011801470153-phase370
            
LF 15/14140025025025015680860123083-phase2150
LF 30/141400320320320307109301290103-phase2180
LF 60/1414004004004006079011801370123-phase270
LF 120/14140050050050012089011801470183-phase370
1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.
2Heating only between two phases


 

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