Assay Furnaces

These furnaces are especially used for the assay of precious metals and ashing processes where the insulation and heating must be protected from emerging gasses and vapours. The furnace chamber forms a ceramic muffle which can easily be replaced. The assay furnace is equipped with an integrated exhaust hood above the furnace door for connection to and exhaust sytem.



Category: .
  • Muffle heated from four sides (three sides for assay furnace N 25/13 CUP)
  • Heating elements and insulation protected by muffle
  • Simple replacement of muffle
  • Warm furnace can be opened
  • Tool holder on furnace
  • Stainless steel exhaust chimney above the door opening for connection of an exhaust system
  • Dual shell housing with fan cooling to reduce exterior temperatures
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
  • Additional equipment
  • Base frame on castors (not for assay furnace N 4/13 CUP)
  • Process control and documentation via VCD software package for monitoring, documentation and control
  • Pit-type furnace with rolling lid
  • For bigger charges we offer pit-type furnaces as assay furnaces
Model Tmax Inner dimensions in mm Volume Outer dimensions in mm Connected Electrical Weight
  °C w d h in l w d h load kW connection in kg
N 4/13 CUP 1280 185 250 80 3.7 750 675 5201 3 1-phase 65
N 8/13 CUP 1300 260 340 95 8.0 900 1335 2100 22 3-phase 510
N 25/13 CUP 1300 250 500 250 25.0 1050 1200 15202 15 1-phase 280
Article No. Description
Exhaust systems/Accessories
631000140 Chimney for connection to an exhaust pipe
631000812 Chimney with fan, to remove exhaust gas from the furnace better.
631000166 Catalytic converter with fan for removal of organic components from the exhaust air.
699000408 Round saggar (Ø 115 mm x 35 mm) for furnaces LHT/LB, Tmax 1650 °C
699000984 Round lid for furnaces LHT/LB, Tmax 1650 °C
699000279 Square saggar for furnaces HTC and LHT, Tmax 1600 °C
699000985 Square lid for furnaces HTC and LHT, Tmax 1600 °C
493000002 Various tongs for easy loading and unloading of the furnace. (300mm)
493000003 Various tongs for easy loading and unloading of the furnace. (500mm)