| 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) | 725 × 725 × 885 |
| Outer Body (MM) | 1130.0 × 1328.0 × 1157.0 |
| Chamber Volume | 465.2 Litres |
| Volume (cu.ft) | 63.5 ft³ |
| Power Load | 33.76 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 554.77 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.
This configuration is suitable when the sample load must fit a 725 × 725 × 885 MM chamber with usable chamber volume of 465.2 litre, approximate power load of 34.7 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: 725 × 725 × 885 MM, 73 × 73 × 89 CM and 29 × 29 × 35 INCH. Buyers searching for 900 Degree Celsius Crucible Furnace 725 × 725 × 885 MM chamber; 900°C Crucible Furnace 725 × 725 × 885 MM; 900 Degree Celsius Crucible Furnace 73 × 73 × 89 CM chamber; 900°C Crucible Furnace 73 × 73 × 89 CM; 900 Degree Celsius Crucible Furnace 29 × 29 × 35 INCH chamber; 900°C Crucible Furnace 29 × 29 × 35 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Trutherm manufactures 900 Degree Celsius (900°C) Crucible Furnace 725 × 725 × 885 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.
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.
Routine QC and teaching labs value a muffle furnace precisely because one unit can cover several standard test methods without dedicated process-specific tooling.
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.