| Category | Muffle Furnace |
| Model | Glass Tempering Kiln |
| Max Temperature | 700°C (1292°F) |
| Working Temperature | 600°C |
| Thermocouple Type | K (Chromel-Alumel) |
| Thermocouple Details | -40 to +500°C range, MgO insulated mineral, Inconel 600 sheath, 4mm diameter, Type K, Tolerance Class 1 |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | Excellent oxidation resistance, Higher resistivity, FeCrAl alloy with Al addition, Max temp: 1425°C |
| Chamber (MM) | 440 x 440 x 825 |
| Outer Body (MM) | 850.0 x 1055.0 x 1105.0 |
| Chamber Volume | 159.7 Litres |
| Volume (cu.ft) | 36.4 ft³ |
| Power Load | 21.7 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 308.06 kg |
| Chamber Shape | Square |
Functionally the same as a Glass Tempering Furnace, this unit is often called a kiln in the industry. It performs the heating phase of the tempering process at around 650°C. The working principle is a large, horizontal roller-hearth kiln that conveys glass sheets through heating and quenching zones. Its purpose is high-volume production of tempered safety glass for construction and automotive industries. The terminology "kiln" is a holdover from ceramic processing but is fully interchangeable with "furnace" in this context.
Trutherm manufactures 700 Degree Celsius (°C) Glass Tempering Kiln 440 x 440 x 825 MM Chamber for buyers who search by exact machine type, chamber size and 700°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 440 x 440 x 825 MM chamber with usable chamber volume of 159.7 litre, approximate power load of 22.5 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: 440 x 440 x 825 MM, 44 x 44 x 83 CM and 17 x 17 x 33 INCH. Buyers searching for 700°C Glass Tempering Kiln 440 x 440 x 825 MM; Glass Tempering Kiln 700°C 440 x 440 x 825 MM; Glass Tempering Kiln 440 x 440 x 825 MM 700°C; 440 x 440 x 825 MM 700°C Glass Tempering Kiln; 700 Degree Glass Tempering Kiln 440 x 440 x 825 MM; Glass Tempering Kiln 700 Degree 440 x 440 x 825 MM can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
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.