| Category | Muffle Furnace |
| Model | Glass Annealer |
| Max Temperature | 700°C (1292°F) |
| Working Temperature | 600°C |
| Thermocouple Type | K (Chromel-Alumel) |
| Thermocouple Details | MgO insulated mineral, Inconel 600 sheath, 4mm diameter, Type K, Tolerance Class 1, -40 to +500°C range |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | Higher resistivity, FeCrAl alloy with Al addition, Max temp: 1425°C, Excellent oxidation resistance |
| Chamber (MM) | 810 × 810 × 880 |
| Outer Body (MM) | 1210.0 × 1410.0 × 1155.0 |
| Chamber Volume | 577.4 Litres |
| Volume (cu.ft) | 71.6 ft³ |
| Power Load | 38.11 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 582.43 kg |
| Chamber Shape | Square |
This furnace is specifically for the controlled, slow cooling of glass products to relieve internal stresses introduced during forming (like blowing or casting). Operating at annealing temperatures (e.g., 550°C), it holds the glass at its annealing point before enacting a carefully programmed cool-down. The working principle uses precise temperature zoning and control to ensure all parts of the glass object cool at the same rate. Its purpose is critical for producing stable, strong glassware that won't crack from internal stress; it is used after any major glass-forming process.
This configuration is suitable when the sample load must fit a 810 × 810 × 880 MM chamber with usable chamber volume of 577.4 litre, approximate power load of 37.9 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: 810 × 810 × 880 MM, 81 × 81 × 88 CM and 32 × 32 × 35 INCH. Buyers searching for 700 Degree Celsius Glass Annealer 810 × 810 × 880 MM chamber; 700°C Glass Annealer 810 × 810 × 880 MM; 700 Degree Celsius Glass Annealer 81 × 81 × 88 CM chamber; 700°C Glass Annealer 81 × 81 × 88 CM; 700 Degree Celsius Glass Annealer 32 × 32 × 35 INCH chamber; 700°C Glass Annealer 32 × 32 × 35 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Trutherm manufactures 700 Degree Celsius (700°C) Glass Annealer 810 × 810 × 880 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.
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.