| Category | Muffle Furnace |
| Model | Digital Laboratory Furnace |
| Max Temperature | 900°C (1652°F) |
| Working Temperature | 800°C |
| Thermocouple Type | K (Chromel-Alumel) |
| Thermocouple Details | Type K, Tolerance Class 2, -40 to +900°C range, MgO insulated mineral, Inconel 600 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) | 690 x 885 x 690 |
| Outer Body (MM) | 1105.0 x 1485.0 x 965.0 |
| Chamber Volume | 421.3 Litres |
| Volume (cu.ft) | 58.6 ft³ |
| Power Load | 32.34 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 506.45 kg |
| Chamber Shape | Rectangular - tall |
Trutherm Digital Laboratory Furnace models support ashing, material testing, heat treatment, sintering and QC workflows with factory-direct chamber size options.
This configuration is suitable when the sample load must fit a 690 x 885 x 690 MM chamber with usable chamber volume of 421.3 litre, approximate power load of 33.3 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: 690 x 885 x 690 MM, 69 x 89 x 69 CM and 27 x 35 x 27 INCH. Buyers searching for 900 Degree Celsius Digital Laboratory Furnace 690 x 885 x 690 MM chamber; 900°C Digital Laboratory Furnace 690 x 885 x 690 MM; 900 Degree Celsius Digital Laboratory Furnace 69 x 89 x 69 CM chamber; 900°C Digital Laboratory Furnace 69 x 89 x 69 CM; 900 Degree Celsius Digital Laboratory Furnace 27 x 35 x 27 INCH chamber; 900°C Digital Laboratory Furnace 27 x 35 x 27 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 (°C) Digital Laboratory Furnace 690 x 885 x 690 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.
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.