The cupellation or fire assay method, classified under the norm UNI ISO 11426:2000, is an old and well known analytical methodology utilized for the determination of precious metals concentration.

The cupellation laboratory (fire assaying) consists of the following machines:

Cuppellation furnaces

Cupellation furnces (fire assaying):

logo tabelle  BT CF 01 BT CF 08
Model BT-CF-01 BT-CF-08
Type of heating Electrical resistors
MAX temperature 1150°C
Internal dimensions (muffle) 125 x 230 x 75 H 170 x 230 x 75 H
Number of cupels 12 18
Timer Daily Daily or Weekly (to be chosen)
Power supply 230 V, 50-60 Hz single phase
Power 2,5 kW 3,9 kW
Dimensions [mm] 400 x 650 x 750 H 485 x 750 x 820 H

Spare parts for cupellation furnace, they are always available in stock for any maintenance requirements:

  • Resistors
  • Carborundum muffles
  • Refractory elements
  • Thermocouples

Consumables for cupellation furnaces always available in stock to meet the various operational requirements:

  • Magnesite cups
  • Annealing crucibles
  • Lead foil 0.1 x 70 mm

Separation hoods (parting hoods)

Chemical hoods for running the processo for separation of metals inside the sample.

logo tabelle BT SH 06 BT SH 12 BT SH 20
Model BT-SH-06 BT-SH-12 BT-SH-20
Assaying method Single assay in kjeldahl flasks Multiple assays in quartzglass cell
Number of sample per batch 6 12 20
Power supply 220 V 50 Hz single phase
Power 1 kW 2 kW 3,7 kW
Dimensions [mm] 750 x 800 x 1600 H 1500 x 800 x 1600 H 750 x 800 x 1600 H

Consumables / laboratory glassware

We supply the laboratory glassware necessary for the execution of the process: kjeldahl balloons, volumetric flasks, glass bottles, quartz cells.

Working bench with rolling mill

Working bench for cupels treatment with rolling mill and annealing system

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Balestri Technologies S.r.l.
Via Aldo Moro, 9 - 52010
Capolona (AR) Italy
Tel. +39.0575.420.673
Tel./Fax. +39.0575.420.100
Partita IVA: 02120540519
Num. REA: AR 163232
Capitale sociale I.V.: € 10.000,00
Socio unico: NO