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.
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Product Description：
l Independent furnace muffle, large chamber volume, suitable for experiments and production in many fields;
l Fast heating speed, high temperature control precision, high uniformity and stability of furnace temperature;
l Pneumatically control the oblique opening door, which is convenient to operate, keeping the hot furnace door away from the operator;
l Over-temperature automatic alarm output and other safety protection measures to prevent accidents;
l The muffle has a long service life, and the exterior is made of high-insulation refractory bricks with good insulation effect.
There are five steps in fire assaying
1. Fluxing and fusion of the sample.
2. Separation of the slag from the button.
3. Cupellation.
4. Parting
5. Weighing finish / Instrumental finish
Temperature Control
l Electronic, automatic control max. 1400°C
l Type K thermocouple
l High temperature alarm output.
l Optional 7 day timer is available.
l Muffle heated from four sides
l Heating elements and insulation protected by muffle
l Simple replacement of muffle
l Warm furnace can be opened
l Tool holder on furnace
l Stainless steel exhaust chimney above the door opening for connection of an exhaust system
l Dual shell housing with fan cooling to reduce exterior temperatures
l Defined application within the constraints of the operating instructions
Model | Muffle Size（mm） | Dimension（mm） | Crucible Loading QTY | Max. Temperature（℃） | Power |
HT-SJF12 | 500x430x360 | 1150x770x1700 w/ door closed 1160x1087x1950 w/ door open | 12x50/65g | 1200 | 18kW |
HT-SJF25 | 660x610x360 | 1400x1160x1850 w/ door closed 1400x1160x2100 w/ door open | 25x50/65g | 1200 | 24KW |
Product Description：
l Independent furnace muffle, large chamber volume, suitable for experiments and production in many fields;
l Fast heating speed, high temperature control precision, high uniformity and stability of furnace temperature;
l Pneumatically control the oblique opening door, which is convenient to operate, keeping the hot furnace door away from the operator;
l Over-temperature automatic alarm output and other safety protection measures to prevent accidents;
l The muffle has a long service life, and the exterior is made of high-insulation refractory bricks with good insulation effect.
There are five steps in fire assaying
1. Fluxing and fusion of the sample.
2. Separation of the slag from the button.
3. Cupellation.
4. Parting
5. Weighing finish / Instrumental finish
Temperature Control
l Electronic, automatic control max. 1400°C
l Type K thermocouple
l High temperature alarm output.
l Optional 7 day timer is available.
l Muffle heated from four sides
l Heating elements and insulation protected by muffle
l Simple replacement of muffle
l Warm furnace can be opened
l Tool holder on furnace
l Stainless steel exhaust chimney above the door opening for connection of an exhaust system
l Dual shell housing with fan cooling to reduce exterior temperatures
l Defined application within the constraints of the operating instructions
Model | Muffle Size（mm） | Dimension（mm） | Crucible Loading QTY | Max. Temperature（℃） | Power |
HT-SJF12 | 500x430x360 | 1150x770x1700 w/ door closed 1160x1087x1950 w/ door open | 12x50/65g | 1200 | 18kW |
HT-SJF25 | 660x610x360 | 1400x1160x1850 w/ door closed 1400x1160x2100 w/ door open | 25x50/65g | 1200 | 24KW |
