| Category | Muffle Furnace |
| Model | Biscuit Firing Furnace |
| Max Temperature | 1000°C (1832°F) |
| Working Temperature | 900°C |
| Thermocouple Type | N (Nicrosil-Nisil) |
| Thermocouple Details | 6mm diameter, Type N, Tolerance Class 2, 0 to +1100°C range, MgO insulated mineral, Inconel 600 sheath |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | Superior cyclic performance, FeCrAl alloy with rare earth elements, Max temp: 1425°C |
| Chamber (MM) | 640 x 640 x 900 |
| Outer Body (MM) | 1045.0 x 1240.0 x 1180.0 |
| Chamber Volume | 368.6 Litres |
| Volume (cu.ft) | 57.1 ft³ |
| Power Load | 30.76 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 461.12 kg |
| Chamber Shape | Square |
This furnace, also called a bisque firing kiln, conducts the initial firing of ceramic ware to transform shaped clay into a durable, porous bisque. Operating around 900°C, it drives off physical and chemical water and begins vitrification. The working principle involves a controlled ramp-up of temperature to prevent steam pressure from cracking the ware, followed by a soak period and controlled cooling. Its purpose is to harden the clay body so it can withstand handling and the absorption of liquid glaze before the final firing. It is a fundamental first step in all professional and studio pottery production.
This configuration is suitable when the sample load must fit a 640 x 640 x 900 MM chamber with usable chamber volume of 368.6 litre, approximate power load of 31.6 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: 640 x 640 x 900 MM, 64 x 64 x 90 CM and 25 x 25 x 36 INCH. Buyers searching for 1000 Degree Celsius Biscuit Firing Furnace 640 x 640 x 900 MM chamber; 1000°C Biscuit Firing Furnace 640 x 640 x 900 MM; 1000 Degree Celsius Biscuit Firing Furnace 64 x 64 x 90 CM chamber; 1000°C Biscuit Firing Furnace 64 x 64 x 90 CM; 1000 Degree Celsius Biscuit Firing Furnace 25 x 25 x 36 INCH chamber; 1000°C Biscuit Firing Furnace 25 x 25 x 36 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Trutherm manufactures 1000 Degree Celsius (°C) Biscuit Firing Furnace 640 x 640 x 900 MM Chamber for buyers who search by exact machine type, chamber size and 1000°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.
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.