Chamber Furnaces for Annealing, Hardening and Brazing up to 1280 °C

Low energy consumption due to multi-layer insulation.

Process Control

Function and equipment

N61H
N7_H_
Beschickungswagen
Tiefer_Ofenraum

To withstand harsh use in the laboratory, e.g. when heat-treating metals, robust insulation with light refractory bricks is necessary. The chamber furnaces N 7/H - N 87/H are a perfect fit to solve this problem. The furnaces can be extended with a variety of accessories, like annealing boxes for operation under protective gas, roller guides, or a cooling station with a quench tank. Even high-performance applications like the annealing of titanium in medical applications can be implemented without the use of expensive and complicated annealing systems.

Standard Equipment

  • Tmax 1280 °C
  • 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
  • Stainless steel upper door jamb protects furnace structure when furnace is opened hot
  • 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 guided downward swinging door (user protected from heat radiation)
  • Door movement cushioned with gas dampers/struts
  • Controller with touch operation B500 (5 prgrams with each 4 segments)
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Technical specifications

ModelTmaxInner dimensions in mmVolumeOuter dimensions1 in mmConnectedElectricalWeightHeating time
 in °Cwdhin lWDHload in kWconnectionin kgin min2
N 7/H128025025014098006506003.01-phase60320
N 11/H1280250350140118007506003.51-phase70320
N 11/HR1280250350140118007506005.53-phase37070
N 17/HR1280250500140178009006006.43-phase390110
N 31/H12803503502503110401030134015.03-phase21090
N 41/H12803505002504110401180134015.03-phase260105
N 61/H12803507502506110401430134020.03-phase400105
N 87/H128035010002508710401680134025.03-phase480105
1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.
2Heating 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)
3Heating only between two phases

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