Labotemp Muffle Furnace FMU-20 is a bench-top box furnace engineered for laboratories requiring reliable high-temperature processing up to 1200°C. Designed as a front-loading laboratory furnace with a 40-liter chamber (300×300×450mm), it features heating elements embedded on three sides for fast, uniform heat distribution and minimal temperature gradient, critical for consistent results in sintering, calcination, ashing, ceramic firing, glass seal firing, wax burnout, and gravimetric analysis workflows.
Built with high-alumina ceramic fiber board insulation and a steel exterior with air-cooling fan, the FMU-20 balances maximum thermal efficiency with a safe-to-touch outer surface. The programmable digital PID temperature controller with 32 segments and ±1°C accuracy ensures precise, repeatable thermal profiles. Overheat protection, power failure auto-resume, and self-tuning PID control with minimal overshoot provide a secure operating environment for demanding daily laboratory use.
Why Choose Labotemp Muffle Furnace FMU-20?
✓ Uniform Heating Performance: Three-sided embedded elements deliver superior temperature uniformity across the full chamber volume
✓ Precise Process Control: 32-segment programmable PID controller with ±1°C accuracy supports complex, repeatable thermal protocols
✓ Energy-Efficient Construction: High-alumina ceramic fiber insulation minimizes heat loss and reduces operating energy consumption
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Capacity : 40 Liters Capacity |
40 Liters |
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Maximum Temperature : 1200°C Maximum Temperature |
1200°C |
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Continuous Working Temperature : 1100°C Continuous Working Temperature |
1100°C |
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Minimum Temperature : Ambient Minimum Temperature |
Ambient |
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Heating Rate : 25°C/min (Recommended: 0–20°C/min) Heating Rate |
25°C/min (Recommended: 0–20°C/min) |
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Temperature Accuracy : ±1°C Temperature Accuracy |
±1°C |
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Voltage : AC 220V 50Hz Voltage |
AC 220V 50Hz |
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Power : 12 kW Power |
12 kW |
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Phase : Three Phase Phase |
Three Phase |
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Controller : Programmable Digital Controller (32–50 segments) Controller |
Programmable Digital Controller (32–50 segments) |
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Thermocouple : Type N Thermocouple |
Type N |
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Heating Element : HRE alloy heating wire Heating Element |
HRE alloy heating wire |
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Chamber Size : 300 × 300 × 450 mm Chamber Size |
300 × 300 × 450 mm |
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Insulation Material : 1500 Grade Alumina Ceramic Fiber Insulation Material |
1500 Grade Alumina Ceramic Fiber |
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Structure : Bench-top, front loading Structure |
Bench-top, front loading |
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Cooling : Air cooling fan Cooling |
Air cooling fan |
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Display : LED Display |
LED |
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Package size : 1260x1260x1490mm Package size |
1260x1260x1490mm |
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Gross Weight : 370kg Gross Weight |
370kg |
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Net Weight : 305kg Net Weight |
305kg |
Time from Room Temp. to Max Temp. (min): 80
Temperature Setting Mode: Touch four keys
Temperature Resolution: 1°C
Temperature Fluctuation: ±5%°C
Time from Room Temp. to Max Temp. (min): 80
Temperature Setting Mode: Touch four keys
Temperature Resolution: 1°C
Temperature Fluctuation: ±5%°C
Time from Room Temp. to Max Temp. (min): 80
Temperature Setting Mode: Touch four keys
Temperature Resolution: 1°C
Temperature Fluctuation: ±5%°C
Timer: 0–99 h 59 min (programmable timing)
Temperature Setting: Touch button setting
Temperature Resolution: 1°C
Temperature Range: 100°C – 1200°C
Voltage: AC 220V 50Hz
Thermocouple: Type N
Temperature Accuracy: ±1°C
Structure: Bench-top, front loading
Working Temperature: 1100°C, 24/7
Thermocouple: Type N
Thermal Parameters:
Temperature Uniformity: ±5°C
Time from Room Temp. to Max Temp. (min): 60
Temperature Setting Mode: Touch four keys
Temperature Resolution: 1°C
Temperature Fluctuation: ±5%°C
Time from Room Temp. to Max Temp. (min): 70
Temperature Setting Mode: Touch four keys
Temperature Resolution: 1°C
Temperature Fluctuation: ±5%°C
Time from Room Temp. to Max Temp. (min): 75
Temperature Setting Mode: Touch four keys
Temperature Resolution: 1°C
Temperature Fluctuation: ±5%°C
Weight: 130 – 150 kg
Voltage: 110 V
Time to Max Temperature: 30 – 50 minutes
Thermocouple Type: Type K
Timing: 0–999 hours
Temperature Rising Time: 60±5 minutes
Temperature Resolution: 1°C
Temperature Controller: Touch Screen
Volume: 4L
Timer : 0–9999 min
Temperature Setting Mode : Touch
Temperature Resolution : 1℃
Volume : 12L
Timer: 0–9999 min
Temperature Setting Mode: Touch
Temperature Resolution : 1℃
Volume : 20 L
Timer: 0–9999 min
Temperature Setting Mode: Touch
Temperature Resolution : 1℃
Volume : 36 L
Timer: 0–9999 min
Temperature Setting Mode: Touch
Temperature Resolution : 1℃
Volume : 4 L
Voltage: AC 220V 50Hz / 240V 60Hz
Timer: 0–9999 min
Temperature Setting Mode: Touch
Volume : 12 L
Timer: 0–9999 min
Temperature Setting Mode: Touch
Temperature Resolution : 1℃
Volume : 20 L
Timer: 0–9999 min
Temperature Setting Mode: Touch
Temperature Resolution : 1℃
Volume : 36 L
Timer: 0–9999 min
Temperature Setting Mode: Touch
Temperature Resolution : 1℃
Timer: Standard: 0–9999 min; P Type: 0–99 h 59 min; PL Type: 0–9999 min
Temperature Rise Time: ≤140 min
Temperature Resolution Ratio: 1°C
Temperature Range: 1700°C
Temperature Sensor: B-Type Thermocouple
Temperature Control: 50-Segment Programmable Digital PID Controller
Temperature Accuracy: ±1 °C
Technical Specifications:
Temperature Sensor: B-Type Thermocouple
Temperature Control: 50-Segment Programmable Digital PID Controller
Temperature Accuracy: ±1 °C
Technical Specifications:
Voltage: AC 220V, 50HZ
Thermocouple: Type K
Temperature control accuracy: ±1℃
Safety protection features: Protection for temperature deviation, over-temperature warning, phase-loss warning, and over-flow protection
Voltage: AC 220V, 50HZ
Thermo couple: Type K
Temperature control accuracy: ±1℃
Safety protection features: Protection for temperature deviation, over-temperature warning, phase-loss warning, and over-flow protection
Voltage: AC 220V, 50HZ
Thermo couple: Type K
Temperature control accuracy: ±1℃
Safety protection features: Protection for temperature deviation, over-temperature warning, phase-loss warning, and over-flow protection
Voltage: AC 220V, 50HZ
Thermo couple: Type K
Temperature control accuracy: ±1℃
Safety protection features: Protection for temperature deviation, over-temperature warning, phase-loss warning, and over-flow protection
Thermal Insulation: External Surface Temperature < 45°C
Temperature Accuracy: ±5°C
Standard Working Temperature: 538°C
Secondary Combustion Chamber Temperature: 900°C
Weight Monitoring: Continuous Electronic Balance Monitoring
Test Accuracy: ±0.11%
Temperature Control: Programmable Automatic Control
Sample Mass Capacity: Standard: 1200–1800 g; Maximum: 5000 g
