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Carbolite CF Cupellation Furnaces

Carbolite CF Cupellation Furnaces

The Carbolite CF Cupellation Furnaces are designed for the cupellation, or fire assay test, of precious metals, which is a standard test method used to determine their purity.

Key Features

  • 1200°C maximum operating temperature
  • Designed for testing using the cupellation method to ISO11426:1999 the standard test method used by the UK Assay Office, a reference quantitative assay method by the International Hallmark Convention
  • The airflow, controlled by an adjustable valve, is preheated before entering the work chamber
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Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

The furnaces meet the Hallmarking requirements specified by the Convention on the Control and Marking of Articles of Precious Metals (known also as "Precious Metals Convention", "Hallmarking Convention" or "Vienna Convention").

The test method produces hazardous vapours. When used within a suitable fume management system, the cupellation furnaces are designed to handle the vapours without exposing the operator to these hazards. The design of the cupellation furnace range ensures protection from the corrosive environment which would damage a conventional furnace.

Standard features

  • • Silicon carbide elements mounted above and below the chamber provide even heating of cupels, have good resistance to thermal shock & offer extended working life at high temperatures
  • • Silicon carbide lined roof and hearth protect the heating elements and resist the corrosive fumes emitted during the cupellation process
  • • Fumes are extracted through an insulated exhaust duct, with a removable container to collect condensed lead
  • • Up & away counterbalanced vertically opening door fitted with observation hole
  • • Element over-temperature protection controller
  • • Fitted with 7 day, 24 hour time-switch

Models
  • CF15-208SN CF 15 1200°C, 15 cupel cupellation furnace (200 - 210 V-SR-single phase + N)

  • CF15-208TX CF 15 1200°C, 15 cupel cupellation furnace (200 - 210 V -SR-three phase n1 N)

  • CF15-230SN CF 15 1200°C, 15 cupel cupellation furnace (220 - 240 V -SR-single phase + N)

  • CF15-230TX CF 15 1200°C, 15 cupel cupellation furnace (220 - 240 V -SR-three phase n1 N)

  • CF15-400TN CF 15 1200°C, 15 cupel cupellation furnace (380 - 415 V -SR-three phase + N)

  • CF24-208SN CF 24 1200°C, 24 cupel cupellation furnace (200 - 210 V-SR-single phase + N)

  • CF24-208TX CF 24 1200°C, 24 cupel cupellation furnace (200 - 210 V -SR-three phase n1 N)

  • CF24-230SN CF 24 1200°C, 24 cupel cupellation furnace (220 - 240 V -SR-single phase + N)

  • CF24-230TX CF 24 1200°C, 24 cupel cupellation furnace (220 - 240 V -SR-three phase n1 N)

  • CF24-400TN CF 24 1200°C, 24 cupel cupellation furnace (380 - 415 V -SR-three phase + N)

  • CF60-208TX CF 60 1200°C, 60 cupel cupellation furnace (200 - 210 V -SR-three phase n1 N)

  • CF60-230TX CF 60 1200°C, 60 cupel cupellation furnace (220 - 240 V -SR-three phase n1 N)

  • CF60-400TN CF 60 1200°C, 60 cupel cupellation furnace (380 - 415 V -SR-three phase + N)