| Category | Muffle Furnace |
| Model | Glass Furnace |
| Max Temperature | 800°C (1472°F) |
| Working Temperature | 700°C |
| Thermocouple Type | K (Chromel-Alumel) |
| Thermocouple Details | -40 to +750°C range, MgO insulated mineral, Inconel 600 sheath, 4mm diameter, Type K, Tolerance Class 1 |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | Superior cyclic performance, FeCrAl alloy with rare earth elements, Max temp: 1425°C |
| Chamber (MM) | 400 x 800 x 400 |
| Outer Body (MM) | 805.0 x 1405.0 x 675.0 |
| Chamber Volume | 128 Litres |
| Volume (cu.ft) | 28 ft³ |
| Power Load | 19.82 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 261.21 kg |
| Chamber Shape | Rectangular - tall |
This is a general term for a furnace used in melting and primary processing of glass. Operating at temperatures like 800°C (higher for some glasses), it contains a large bath of molten glass called a "tank." The working principle involves maintaining a pool of molten glass using fossil fuel burners or electric boosters, with raw materials continuously fed in at one end and molten glass gathered or drawn from the other. Its purpose is the foundational stage of all glass manufacturing, from bottles and windows to fine crystal and fiber optics.
Equivalent chamber references: 400 x 800 x 400 MM, 40 x 80 x 40 CM and 16 x 32 x 16 INCH. Buyers searching for 800 Degree Celsius Glass Furnace 400 x 800 x 400 MM chamber; 800°C Glass Furnace 400 x 800 x 400 MM; 800 Degree Celsius Glass Furnace 40 x 80 x 40 CM chamber; 800°C Glass Furnace 40 x 80 x 40 CM; 800 Degree Celsius Glass Furnace 16 x 32 x 16 INCH chamber; 800°C Glass Furnace 16 x 32 x 16 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Trutherm manufactures 800 Degree Celsius (°C) Glass Furnace 400 x 800 x 400 MM Chamber for buyers who search by exact machine type, chamber size and 800°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 400 x 800 x 400 MM chamber with usable chamber volume of 128 litre, approximate power load of 20.5 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.
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.