Equipment Overview
The KL/KB series of small electric furnaces are super high-temperature electric furnaces with lanthanum chromite Keramax unit heaters as heating elements.
Two types are available: KL (max. temperature 1900°C) and KB (max. temperature 1800°C). KL uses alumina refractory for insulation, while KB uses alumina board. Both KL and KB are designed to take advantage of the characteristics of Keramax unit heaters and can easily achieve very high temperatures in the atmosphere.

forte
- Raises temperature to normal operating temperature in about 7 hours (no sample)
- Large even heating range in the furnace is stable even at high temperatures.
- Keramax unit heaters are very economical due to their extremely high thermal efficiency and low power consumption
- Simple structure and easy replacement of heating elements
- Highly accurate temperature control
- Prevents heater damage due to thermal shock in the event of thermocouple disconnection
- Prevents damage to heaters due to thermal shock, even in the event of a power failure
Specifications | ||
Model | KB-2030D | KL-2030D |
Inner dimensions of furnace | W200 x H200 x D300mm | |
External dimensions | W670×H1650×D700mm | W700×H1650×D800mm |
Maximum temperature | 1800°C | 1900°C (1900°F) |
Normal temperature | 1750°C | 1850℃ 1850℃ 1850℃ 1850℃ 1850℃ 1850℃ 1850℃ 1850℃ 1850 |
Temperature rise time | Approx. 6 hours to normal temperature | Approx. 7 hours to normal temperature |
Temperature distribution | Approx. ±3°C (no sample within effective dimension at 1700°C) | |
Primary power supply | AC200V 1φ 50/60Hz | |
Equipment capacity | 8kVA | 14kVA |
Heater capacity | 7kW | 13kW |
Insulation material | Alumina board | Alumina refractory |
Temperature control | Programmed PID continuous control | |
Temperature measurement | Thermocouple PR20-40 | Automatic switching between thermocouple PR20-40 and Automatic switching of radiation thermometer |
Atmosphere | Oxidizing atmosphere (atmospheric) |