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N 61/H N 7/H as table-top model

Working with protective gas boxes for a protective gas atmosphere using a charging cart

N 7/H - N 87/H

To withstand harsh use in the laboratory, e.g. when heat-treating metals, robust insulation with light refractory bricks is necessary. The N 7/H - N 87/H models 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.

  • Tmax 1280 °C
  • Three-sided heating from both sides and the bottom
  • Heating elements on support tubes ensure free heat radiation and a long service life
  • Bottom heating protected by heat-resistant SiC plate
  • Multi-layer insulation with high-quality lightweight refractory bricks in the furnace chamber
  • Exhaust opening in the side of the furnace, or on back wall of furnace in the N 31/H models and higher
  • Models N 7/H - N 17/HR are designed as tabletop models
  • Base included with model N 31/H and up
  • Parallel swinging door which opens downward, or upward upon request
  • Defined application within the constraints of the operating instructions
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeightMinutes
 °Cwdhin lWDHload kWconnection*in kgto Tmax2
N 7/H 1280 250 250 140 9 770 650 570 3.0 1-phase 60 180
N 11/H 1280 250 350 140 11 770 750 570 3.6 1-phase 70 180
N 11/HR 1280 250 350 140 11 770 770 570 5.5 3-phase1 70 120
N 17/HR 1280 250 500 140 17 770 900 570 6.4 3-phase1 90 120
N 31/H 1280 350 350 250 31 1010 1010 1340 15.0 3-phase 210 105
N 41/H 1280 350 500 250 41 1010 1160 1340 15.0 3-phase 260 120
N 61/H 1280 350 750 250 61 1010 1410 1340 20.0 3-phase 400 120
N 87/H 1280 350 1000 250 87 1010 1660 1340 25,0 3-phase 480 120
1Heating only between two phases *Please see page 60 for more information about supply voltage
2If connected at 230 V 1/N/PE rsp. 400 V 3/N/PE
 

Accessories for Hardening and Brazing

   
   

 

 

 

 

 

 

Our wide selection of annealing, hardening and brazing furnaces can be extended with a variety of accessories for hardening and brazing to suit your application. The accessories shown below represent only a small fraction of the products available. For further details, please see our separate catalogues for heat-treatment furnaces and hardening accessories.

Annealing Boxes

  • Annealing boxes with or without protective gas connectors, up to 1100 °C, also in a tailor-made variant for cold evacuation, for instance for the annealing of small parts and bulk goods

Annealing Tray with Holder

  • Annealing tram with alloy bag and holder with protective gas connection for models N 7/H to N 87/H for annealing and hardening under protective gas and quenching in air

Hearth Plates

  • Hearth plates for up to 1100 °C for protection of the furnace floor for models N 7/H to N 87/H, edged on three sides

Hardening Tongs

  • Hardening tongs in various sizes and forms for use in annealing and hardening

Heat Treating Foil

  • Heat treating foil for wrapping of samples for oxidation-free annealing and hardening of steels up to 1200 °C

Gloves

  • Heat-resistant gloves to 650 °C or 700 °C for protection of operator during loading

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