| Category | Muffle Furnace |
| Model | Crucible Furnace |
| Max Temperature | 900°C (1652°F) |
| Working Temperature | 800°C |
| Thermocouple Type | K (Chromel-Alumel) |
| Thermocouple Details | MgO insulated mineral, Inconel 600 sheath, 6mm diameter, Type K, Tolerance Class 2, -40 to +900°C range |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | FeCrAl alloy with rare earth elements, Max temp: 1425°C, Superior cyclic performance |
| Chamber (MM) | 125 x 125 x 250 |
| Outer Body (MM) | 528.0 x 728.0 x 527.0 |
| Chamber Volume | 4 Litres |
| Volume (cu.ft) | 7.4 ft³ |
| Power Load | 5.1 kW |
| Power Supply | 220V, Single Phase |
| Gross Weight | 57.45 kg |
| Chamber Shape | Square |
This furnace design utilizes a removable crucible—a container made of refractory or graphite—to hold the material being heated or melted. Operating from 600°C to very high temperatures, it offers flexibility. The working principle involves heating the crucible externally (by surrounding elements or burners) or internally (by immersion heating). Its purpose is for small to medium batch melting of non-ferrous metals, alloying, or heat treating materials that must be isolated from the furnace lining. Popular in jewelry making, dental labs, and foundries for its simplicity and ease of material changeover.
Trutherm manufactures 900 Degree Celsius (900°C) Crucible Furnace 125 x 125 x 250 MM Chamber for buyers who search by exact machine type, chamber size and 900°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.
This configuration is suitable when the sample load must fit a 125 x 125 x 250 MM chamber with usable chamber volume of 4 litre, approximate power load of 5 kW, square 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: 125 x 125 x 250 MM, 13 x 13 x 25 CM and 5 x 5 x 10 INCH. Buyers searching for 900 Degree Celsius Crucible Furnace 125 x 125 x 250 MM chamber; 900°C Crucible Furnace 125 x 125 x 250 MM; 900 Degree Celsius Crucible Furnace 13 x 13 x 25 CM chamber; 900°C Crucible Furnace 13 x 13 x 25 CM; 900 Degree Celsius Crucible Furnace 5 x 5 x 10 INCH chamber; 900°C Crucible Furnace 5 x 5 x 10 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Routine QC and teaching labs value a muffle furnace precisely because one unit can cover several standard test methods without dedicated process-specific tooling.
Uniform chamber heating and a simple door-loading design make a muffle furnace straightforward to standardise across multiple operators and shifts.
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.