| 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) | 850 x 615 x 615 |
| Outer Body (MM) | 1251.0 x 1213.0 x 889.0 |
| Chamber Volume | 321.5 Litres |
| Volume (cu.ft) | 51 ft³ |
| Power Load | 30.34 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 424.3 kg |
| Chamber Shape | Rectangular - wide |
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.
Equivalent chamber references: 850 x 615 x 615 MM, 85 x 62 x 62 CM and 34 x 24 x 24 INCH. Buyers searching for 700 Degree Celsius Glass Annealer 850 x 615 x 615 MM chamber; 700°C Glass Annealer 850 x 615 x 615 MM; 700 Degree Celsius Glass Annealer 85 x 62 x 62 CM chamber; 700°C Glass Annealer 85 x 62 x 62 CM; 700 Degree Celsius Glass Annealer 34 x 24 x 24 INCH chamber; 700°C Glass Annealer 34 x 24 x 24 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 850 x 615 x 615 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 850 x 615 x 615 MM chamber with usable chamber volume of 321.5 litre, approximate power load of 29.9 kW, rectangular - wide 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.