| Category | Muffle Furnace |
| Model | Glass Annealing Furnace |
| Max Temperature | 1100°C (2012°F) |
| Working Temperature | 1000°C |
| Thermocouple Type | N (Nicrosil-Nisil) |
| Thermocouple Details | 6mm diameter, Type N, Tolerance Class 2, 0 to +1200°C range, MgO insulated mineral, Inconel 601 sheath |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | Superior cyclic performance, FeCrAl alloy with rare earth elements, Max temp: 1425°C |
| Chamber (MM) | 250 x 250 x 375 |
| Outer Body (MM) | 660.0 x 850.0 x 665.0 |
| Chamber Volume | 23.4 Litres |
| Volume (cu.ft) | 13.3 ft³ |
| Power Load | 10.16 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 111 kg |
| Chamber Shape | Square |
Synonymous with a Glass Annealer, this furnace performs the annealing process on glass. Operating around 550°C, it heats already-formed glass to its annealing temperature and then controls the cooling cycle. The working principle involves a long, tunnel-like chamber with different temperature zones through which the glass travels on a belt, or a batch chamber with a programmable cool-down. Its purpose is to prevent residual stress that could cause spontaneous breakage, making it essential in the production of architectural glass, laboratory glassware, and art glass.
Equivalent chamber references: 250 x 250 x 375 MM, 25 x 25 x 38 CM and 10 x 10 x 15 INCH. Buyers searching for 1100 Degree Celsius Glass Annealing Furnace 250 x 250 x 375 MM chamber; 1100°C Glass Annealing Furnace 250 x 250 x 375 MM; 1100 Degree Celsius Glass Annealing Furnace 25 x 25 x 38 CM chamber; 1100°C Glass Annealing Furnace 25 x 25 x 38 CM; 1100 Degree Celsius Glass Annealing Furnace 10 x 10 x 15 INCH chamber; 1100°C Glass Annealing Furnace 10 x 10 x 15 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) Glass Annealing Furnace 250 x 250 x 375 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 250 x 250 x 375 MM chamber with usable chamber volume of 23.4 litre, approximate power load of 10.3 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.
Where sample volume and process type vary week to week, a general-purpose muffle furnace avoids the cost of maintaining several process-specific furnace types.
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.
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.