| Category | Muffle Furnace |
| Model | Coal Ash Fusion Furnace |
| Max Temperature | 1400°C (2552°F) |
| Working Temperature | 1300°C |
| Thermocouple Type | B (Platinum-30% Rhodium) |
| Thermocouple Details | High purity alumina insulation, Platinum-Rhodium alloy sheath, 8mm diameter, Type B, Tolerance Class 2, 200 to +1700°C range |
| Heating Element | Silicon Carbide (SiC) |
| Element Details | Brittle material, SiC heating elements, Max temp: 1600°C, High power density |
| Insulation Material | Ceramic Fibre Board (HP Grade, 1430°C rated) |
| Insulation Thickness | 125 mm |
| Chamber (MM) | 830 x 705 x 705 |
| Outer Body (MM) | 1240.0 x 1305.0 x 985.0 |
| Chamber Volume | 412.5 Litres |
| Volume (cu.ft) | 57.5 ft³ |
| Power Load | 33 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 500.62 kg |
| Chamber Shape | Rectangular - wide |
| Body Material | MS (Mild Steel) |
| Body Paint Type | Liquid Painting |
| Temperature Controller | PID On/Off Controller |
| Safety Device | MCB |
This highly specialized furnace tests the fusibility of coal ash, a critical parameter for boiler design and operation in coal-fired power plants. Operating at very high temperatures (around 1200°C), it observes ash behavior under simulated combustion conditions. The working principle involves heating a cone of compressed ash in a controlled atmosphere while visually or digitally monitoring the temperatures at which it deforms, softens, and flows. Its purpose is purely analytical, predicting slagging and fouling tendencies to optimize boiler efficiency and prevent downtime. It is a key instrument in fuel quality and power generation research labs.
This configuration is suitable when the sample load must fit a 830 x 705 x 705 MM chamber with usable chamber volume of 412.5 litre, approximate power load of 33 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.
Equivalent chamber references: 830 x 705 x 705 MM, 83 x 71 x 71 CM and 33 x 28 x 28 INCH. Buyers searching for 1400°C Coal Ash Fusion Furnace 830 x 705 x 705 MM; Coal Ash Fusion Furnace 1400°C 830 x 705 x 705 MM; Coal Ash Fusion Furnace 830 x 705 x 705 MM 1400°C; 830 x 705 x 705 MM 1400°C Coal Ash Fusion Furnace; 1400 Degree Coal Ash Fusion Furnace 830 x 705 x 705 MM; Coal Ash Fusion Furnace 1400 Degree 830 x 705 x 705 MM can verify the same physical chamber on this canonical product page before requesting price, GST invoice, packaging and delivery.
Trutherm manufactures 1400 Degree Celsius (°C) Coal Ash Fusion Furnace 830 x 705 x 705 MM Chamber for buyers who search by exact machine type, chamber size and 1400°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.