| Category | Muffle Furnace |
| Model | Ashing Furnace |
| Max Temperature | 1000°C (1832°F) |
| Working Temperature | 900°C |
| Thermocouple Type | N (Nicrosil-Nisil) |
| Thermocouple Details | MgO insulated mineral, Inconel 600 sheath, 6mm diameter, Type N, Tolerance Class 2, 0 to +1100°C range |
| Heating Element | Kanthal A1 (FeCrAl) |
| Element Details | FeCrAl alloy with rare earth elements, Max temp: 1425°C, Superior cyclic performance |
| Chamber (MM) | 225 × 225 × 450 |
| Outer Body (MM) | 625.0 × 825.0 × 725.0 |
| Chamber Volume | 22.8 Litres |
| Volume (cu.ft) | 13.8 ft³ |
| Power Load | 10.55 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 121.94 kg |
| Chamber Shape | Square |
Used primarily for analytical sample preparation, this furnace burns off organic material from samples, leaving only inorganic ash for compositional analysis. Operating at temperatures like 600°C, it ensures complete combustion of organics without volatilizing certain inorganic components. The working principle involves placing samples in crucibles inside a chamber with good air circulation to support oxidation. Its purpose is to prepare samples for techniques like atomic absorption spectroscopy, enabling the quantification of mineral content in food, soil, pharmaceuticals, and polymers. It is a standard tool in environmental, agricultural, and materials testing laboratories.
Equivalent chamber references: 225 × 225 × 450 MM, 23 × 23 × 45 CM and 9 × 9 × 18 INCH. Buyers searching for 1000 Degree Celsius Ashing Furnace 225 × 225 × 450 MM chamber; 1000°C Ashing Furnace 225 × 225 × 450 MM; 1000 Degree Celsius Ashing Furnace 23 × 23 × 45 CM chamber; 1000°C Ashing Furnace 23 × 23 × 45 CM; 1000 Degree Celsius Ashing Furnace 9 × 9 × 18 INCH chamber; 1000°C Ashing Furnace 9 × 9 × 18 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 (1000°C) Ashing Furnace 225 × 225 × 450 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.
This configuration is suitable when the sample load must fit a 225 × 225 × 450 MM chamber with usable chamber volume of 22.8 litre, approximate power load of 10.2 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 burning off organic material from samples prior to elemental or mineral-content analysis in food, pharmaceutical and environmental testing labs.
Because ashing runs are typically long, uniform temperature distribution across the chamber matters more than rapid ramp rates, which shapes the insulation and element layout used here.
Sample crucibles used in ashing furnaces are usually open or loosely covered to allow gases to escape, unlike sealed-chamber furnace types used for sintering or atmosphere control.
Unlike a general-purpose box furnace, this ashing furnace is optimised for complete, low-residue combustion of organics with good chamber air circulation, making it the better choice when the deliverable is an accurate ash-content or inorganic-residue result rather than metallurgical heat treatment.