| Category | Muffle Furnace |
| Model | Lab Box Furnace |
| Max Temperature | 1400°C (2552°F) |
| Working Temperature | 1300°C |
| Thermocouple Type | B (Platinum-30% Rhodium) |
| Thermocouple Details | 8mm diameter, Type B, Tolerance Class 2, 200 to +1700°C range, High purity alumina insulation, Platinum-Rhodium alloy sheath |
| Heating Element | Silicon Carbide (SiC) |
| Element Details | Max temp: 1600°C, High power density, Brittle material, SiC heating elements |
| Chamber (MM) | 420 x 420 x 800 |
| Outer Body (MM) | 820.0 x 1035.0 x 1090.0 |
| Chamber Volume | 141.1 Litres |
| Volume (cu.ft) | 33.7 ft³ |
| Power Load | 21.53 kW |
| Power Supply | 440V, Three Phase |
| Gross Weight | 285.98 kg |
| Chamber Shape | Square |
Trutherm Lab Box Furnace models are designed for laboratory users needing a box chamber, digital controls, temperature choices and chamber dimension options.
This configuration is suitable when the sample load must fit a 420 x 420 x 800 MM chamber with usable chamber volume of 141.1 litre, approximate power load of 21.4 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 annealing, tempering, hardening and general heat-treatment of metal and ceramic parts in tool rooms, forge shops and QC labs.
Equivalent chamber references: 420 x 420 x 800 MM, 42 x 42 x 80 CM and 16 x 16 x 32 INCH. Buyers searching for 1400 Degree Celsius Lab Box Furnace 420 x 420 x 800 MM chamber; 1400°C Lab Box Furnace 420 x 420 x 800 MM; 1400 Degree Celsius Lab Box Furnace 42 x 42 x 80 CM chamber; 1400°C Lab Box Furnace 42 x 42 x 80 CM; 1400 Degree Celsius Lab Box Furnace 16 x 16 x 32 INCH chamber; 1400°C Lab Box Furnace 16 x 16 x 32 INCH 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) Lab Box Furnace 420 x 420 x 800 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.
Tool rooms and forge shops favour box furnaces because a single chamber can handle annealing, hardening and tempering cycles without changing fixtures between jobs.
Where sample orientation is not critical, the flat shelf and square chamber of a box furnace generally load faster than a cylindrical tube furnace of similar volume.
Compared to a tube or ashing furnace, this box (chamber) furnace gives the largest usable loading footprint for its outer size, so it suits irregularly shaped parts, trays and multiple crucibles better than a cylindrical or vent-style chamber.