| Category | Muffle Furnace |
| Model | LOI Furnace |
| Max Temperature | 1100°C (2012°F) |
| Working Temperature | 1000°C |
| Thermocouple Type | N (Nicrosil-Nisil) |
| Thermocouple Details | Inconel 601 sheath, 6mm diameter, Type N, Tolerance Class 2, 0 to +1200°C range, MgO insulated mineral |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | Max temp: 1425°C, Superior cyclic performance, FeCrAl alloy with rare earth elements |
| Chamber (MM) | 660 x 660 x 890 |
| Outer Body (MM) | 1070.0 x 1260.0 x 1180.0 |
| Chamber Volume | 387.7 Litres |
| Volume (cu.ft) | 57.1 ft³ |
| Power Load | 30.67 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 484.34 kg |
| Chamber Shape | Square |
LOI stands for "Loss on Ignition." This furnace is specifically used to heat a sample to a high temperature (typically 1000°C) to drive off volatile components like water, carbonates, and organic matter. The working principle involves weighing a sample before and after ignition in a controlled atmosphere (usually air); the weight loss percentage is the LOI. Its purpose is an essential analytical technique in ceramics, geology, soil science, and cement manufacturing to determine the composition and quality of raw materials and products.
Equivalent chamber references: 660 x 660 x 890 MM, 66 x 66 x 89 CM and 26 x 26 x 35 INCH. Buyers searching for 1100°C LOI Furnace 660 x 660 x 890 MM; LOI Furnace 1100°C 660 x 660 x 890 MM; LOI Furnace 660 x 660 x 890 MM 1100°C; 660 x 660 x 890 MM 1100°C LOI Furnace; 1100 Degree LOI Furnace 660 x 660 x 890 MM; LOI Furnace 1100 Degree 660 x 660 x 890 MM 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) LOI Furnace 660 x 660 x 890 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.
This configuration is suitable when the sample load must fit a 660 x 660 x 890 MM chamber with usable chamber volume of 387.7 litre, approximate power load of 32.2 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.
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.