| Category | Muffle Furnace |
| Model | Ash Fusion Furnace |
| Max Temperature | 1100°C (2012°F) |
| Working Temperature | 1000°C |
| Thermocouple Type | N (Nicrosil-Nisil) |
| Thermocouple Details | Type N, Tolerance Class 2, 0 to +1200°C range, MgO insulated mineral, Inconel 601 sheath, 6mm diameter |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | FeCrAl alloy with rare earth elements, Max temp: 1425°C, Superior cyclic performance |
| Chamber (MM) | 645 x 345 x 345 |
| Outer Body (MM) | 1045.0 x 955.0 x 620.0 |
| Chamber Volume | 76.8 Litres |
| Volume (cu.ft) | 23.1 ft³ |
| Power Load | 17.48 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 188.85 kg |
| Chamber Shape | Rectangular - wide |
This specialized furnace determines the fusion characteristics of coal or biomass ash at high temperatures, often exceeding 1000°C. It simulates conditions in industrial boilers or gasifiers to predict slagging behavior. The working principle involves heating a molded ash sample in a controlled atmosphere (oxidizing or reducing) while observing the temperatures at which it softens, fuses, and flows. Its purpose is analytical, providing vital data for power plant operators to select fuels and manage boiler operation to avoid damaging slag deposits. It is a key instrument in fuel testing laboratories and energy research facilities.
This configuration is suitable when the sample load must fit a 645 x 345 x 345 MM chamber with usable chamber volume of 76.8 litre, approximate power load of 16.7 kW, rectangular - wide 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: 645 x 345 x 345 MM, 65 x 35 x 35 CM and 25 x 13 x 13 INCH. Buyers searching for 1100 Degree Celsius Ash Fusion Furnace 645 x 345 x 345 MM chamber; 1100°C Ash Fusion Furnace 645 x 345 x 345 MM; 1100 Degree Celsius Ash Fusion Furnace 65 x 35 x 35 CM chamber; 1100°C Ash Fusion Furnace 65 x 35 x 35 CM; 1100 Degree Celsius Ash Fusion Furnace 25 x 13 x 13 INCH chamber; 1100°C Ash Fusion Furnace 25 x 13 x 13 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Trutherm manufactures 1100 Degree Celsius (°C) Ash Fusion Furnace 645 x 345 x 345 MM Chamber for buyers who search by exact machine type, chamber size and 1100°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 is usually the first furnace a lab installs, since it covers the broadest share of everyday heating, drying and ashing tasks before more specialised equipment is added.
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.
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.