| Category | Muffle Furnace |
| Model | Gold Smelting Furnace |
| Max Temperature | 1300°C (2372°F) |
| Working Temperature | 1200°C |
| Thermocouple Type | S (Platinum-10% Rhodium) |
| Thermocouple Details | 0 to +1550°C range, High purity alumina insulation, Platinum sheath, 8mm diameter, Type S, Tolerance Class 2 |
| Heating Element | Silicon Carbide (SiC) |
| Element Details | High power density, Brittle material, SiC heating elements, Max temp: 1600°C |
| Chamber (MM) | 425 x 795 x 425 |
| Outer Body (MM) | 825.0 x 1395.0 x 710.0 |
| Chamber Volume | 143.6 Litres |
| Volume (cu.ft) | 29.9 ft³ |
| Power Load | 22.07 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 267.21 kg |
| Chamber Shape | Rectangular - tall |
This high-temperature furnace (around 1200°C) is used to smelt gold ores or concentrates, separating elemental gold from the rocky matrix. The working principle involves mixing the ore with fluxes and a reducing agent (like coke) and melting it in a crucible or small blast furnace. The dense molten gold sinks to the bottom, while lighter impurities form a slag on top. Its purpose is the primary extraction of gold from mined rock on a small to medium scale, often used by mining cooperatives or in remote locations.
This configuration is suitable when the sample load must fit a 425 x 795 x 425 MM chamber with usable chamber volume of 143.6 litre, approximate power load of 21.5 kW, rectangular - tall chamber profile. It is commonly selected for laboratory, QC, metallurgical, ceramic, pharmaceutical and industrial heat-treatment work requiring stable heating and repeatable process conditions. Typical use includes general laboratory and industrial heat-treatment applications requiring stable, repeatable temperature control.
Equivalent chamber references: 425 x 795 x 425 MM, 43 x 80 x 43 CM and 17 x 31 x 17 INCH. Buyers searching for 1300 Degree Celsius Gold Smelting Furnace 425 x 795 x 425 MM chamber; 1300°C Gold Smelting Furnace 425 x 795 x 425 MM; 1300 Degree Celsius Gold Smelting Furnace 43 x 80 x 43 CM chamber; 1300°C Gold Smelting Furnace 43 x 80 x 43 CM; 1300 Degree Celsius Gold Smelting Furnace 17 x 31 x 17 INCH chamber; 1300°C Gold Smelting Furnace 17 x 31 x 17 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Trutherm manufactures 1300 Degree Celsius (°C) Gold Smelting Furnace 425 x 795 x 425 MM Chamber for buyers who search by exact machine type, chamber size and 1300°C temperature rating. This page is specific to the MM dimension version, so the chamber size is presented in the unit normally used in the buyer's drawing, tender or purchase request.
A muffle furnace isolates the sample from direct contact with heating elements or combustion gases, giving cleaner, more repeatable results than an open flame or hot-plate process.
Because muffle furnaces are used across ashing, drying, calcination and light heat-treatment, the chamber and controller are specified for flexibility rather than one narrow process window.
As a general-purpose muffle furnace, this model covers a broader range of routine heating tasks than a process-specific ashing, tube or sintering furnace, making it the practical default when the lab runs mixed sample types rather than one dedicated process.