| Category | Muffle Furnace |
| Model | LOI Furnace |
| Max Temperature | 1400°C (2552°F) |
| Working Temperature | 1300°C |
| Thermocouple Type | B (Platinum-30% Rhodium) |
| Thermocouple Details | Platinum-Rhodium alloy sheath, 8mm diameter, Type B, Tolerance Class 2, 200 to +1700°C range, High purity alumina insulation |
| Heating Element | Silicon Carbide (SiC) |
| Element Details | SiC heating elements, Max temp: 1600°C, High power density, Brittle material |
| Chamber (MM) | 450 x 450 x 450 |
| Outer Body (MM) | 865.0 x 1065.0 x 740.0 |
| Chamber Volume | 91.1 Litres |
| Volume (cu.ft) | 24 ft³ |
| Power Load | 18.3 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 212.71 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.
Trutherm manufactures 1400 Degree Celsius (°C) LOI Furnace 450 x 450 x 450 MM Chamber for buyers who search by exact machine type, chamber size and 1400°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 450 x 450 x 450 MM chamber with usable chamber volume of 91.1 litre, approximate power load of 17.9 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: 450 x 450 x 450 MM, 45 x 45 x 45 CM and 18 x 18 x 18 INCH. Buyers searching for 1400 Degree Celsius LOI Furnace 450 x 450 x 450 MM chamber; 1400°C LOI Furnace 450 x 450 x 450 MM; 1400 Degree Celsius LOI Furnace 45 x 45 x 45 CM chamber; 1400°C LOI Furnace 45 x 45 x 45 CM; 1400 Degree Celsius LOI Furnace 18 x 18 x 18 INCH chamber; 1400°C LOI Furnace 18 x 18 x 18 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
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.