| Category | Muffle Furnace |
| Model | Metal Tempering Furnace |
| Max Temperature | 800°C (1472°F) |
| Working Temperature | 700°C |
| Thermocouple Type | K (Chromel-Alumel) |
| Thermocouple Details | 4mm diameter, Type K, Tolerance Class 1, -40 to +750°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) | 225 × 225 × 375 |
| Outer Body (MM) | 625.0 × 823.0 × 653.0 |
| Chamber Volume | 19 Litres |
| Volume (cu.ft) | 12.4 ft³ |
| Power Load | 9.62 kW |
| Power Supply | 220V, Single Phase |
| Gross Weight | 104.02 kg |
| Chamber Shape | Square |
Used after hardening, this furnace heats already-hardened metals to a lower temperature (e.g., 400°C for many steels) to reduce brittleness and relieve internal stresses while retaining most of the hardness. The working principle involves precise temperature control at these moderate temperatures to achieve the desired balance of toughness and hardness. Its purpose is a critical second step in the heat treatment of tools, springs, and structural components, making them less prone to catastrophic failure in service. Temperatures and times are carefully selected based on the steel grade and application.
Trutherm manufactures 800 Degree Celsius (800°C) Metal Tempering Furnace 225 × 225 × 375 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 225 × 225 × 375 MM chamber with usable chamber volume of 19 litre, approximate power load of 9.5 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: 225 × 225 × 375 MM, 23 × 23 × 38 CM and 9 × 9 × 15 INCH. Buyers searching for 800 Degree Celsius Metal Tempering Furnace 225 × 225 × 375 MM chamber; 800°C Metal Tempering Furnace 225 × 225 × 375 MM; 800 Degree Celsius Metal Tempering Furnace 23 × 23 × 38 CM chamber; 800°C Metal Tempering Furnace 23 × 23 × 38 CM; 800 Degree Celsius Metal Tempering Furnace 9 × 9 × 15 INCH chamber; 800°C Metal Tempering Furnace 9 × 9 × 15 INCH can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
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.