fire assay furnace is designed for the cupellation, or fire assay test, of precious metals, which is a standard test method used to determine their purity. The cupellation furnaces meet the Hallmarking requirements specified by the Convention on the Control and Marking of Articles of Precious Metals
HT fire assay furnace is designed for the cupellation, or fire assay test, of precious metals, which is a standard test method used to determine their purity. The cupellation 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 cupel 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. HT furnace also offers a range of smelting/melting furnaces.
Standard Equipment of fire assay furnace.
Ceramic muffle to protect the heating elements and insulation
Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
Exclusive use of insulation materials without categorization according to EC Regulation
Cupellation Furnace chamber is heated from 4 sides with heating elements on support tubes
The heating elements can be easily replaced as one unit
Fire assay Furnace chamber ventilated as additional protection for the heating elements
Precise temperature control with control thermocouple directly in the muffle
Closing brick for the muffle with handle for N 10/13 CUP
Electro-mechanic lift door for N 30/13 CUP
Bench/surface in front of muffle
Special fresh-air and exhaust air system for the ceramic muffle. Exhaust gases are directly guided into the exhaust hood via a ceramic tube at the back of the muffle. The air exchange rate is adjustable.
Extraction system with integrated exhaust hood on top of the furnace and above the door to connect to the customer's exhaust air system
Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the oven and load
Defined application within the constraints of the operating instructions
Basic for controller: recording of process data with USB-flash drive
HT fire assay furnace is designed for the cupellation, or fire assay test, of precious metals, which is a standard test method used to determine their purity. The cupellation 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 cupel 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. HT furnace also offers a range of smelting/melting furnaces.
Standard Equipment of fire assay furnace.
Ceramic muffle to protect the heating elements and insulation
Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
Exclusive use of insulation materials without categorization according to EC Regulation
Cupellation Furnace chamber is heated from 4 sides with heating elements on support tubes
The heating elements can be easily replaced as one unit
Fire assay Furnace chamber ventilated as additional protection for the heating elements
Precise temperature control with control thermocouple directly in the muffle
Closing brick for the muffle with handle for N 10/13 CUP
Electro-mechanic lift door for N 30/13 CUP
Bench/surface in front of muffle
Special fresh-air and exhaust air system for the ceramic muffle. Exhaust gases are directly guided into the exhaust hood via a ceramic tube at the back of the muffle. The air exchange rate is adjustable.
Extraction system with integrated exhaust hood on top of the furnace and above the door to connect to the customer's exhaust air system
Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the oven and load
Defined application within the constraints of the operating instructions
Basic for controller: recording of process data with USB-flash drive
