Muffle Furnace FMU-20

Name: Muffle Furnace FMU-20
Brand: Labotemp
SKU: FMU-20
Rating: 4.9 (962 reviews)

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

$4650

Capacity : 40 Liters Capacity	40 Liters
Maximum Temperature : 1200°C Maximum Temperature	1200°C
Continuous Working Temperature : 1100°C Continuous Working Temperature	1100°C
Minimum Temperature : Ambient Minimum Temperature	Ambient
Heating Rate : 25°C/min (Recommended: 0–20°C/min) Heating Rate	25°C/min (Recommended: 0–20°C/min)
Temperature Accuracy : ±1°C Temperature Accuracy	±1°C
Voltage : AC 220V Voltage	AC 220V
Frequency : 50 Hz Frequency	50 Hz
Power : 12 kW Power	12 kW
Phase : Three Phase Phase	Three Phase
Controller : Programmable Digital Controller (32–50 segments) Controller	Programmable Digital Controller (32–50 segments)
Thermocouple : Type N Thermocouple	Type N
Heating Element : HRE alloy heating wire Heating Element	HRE alloy heating wire
Chamber Size : 300 × 300 × 450 mm Chamber Size	300 × 300 × 450 mm
Insulation Material : 1500 Grade Alumina Ceramic Fiber Insulation Material	1500 Grade Alumina Ceramic Fiber
Structure : Bench-top, front loading Structure	Bench-top, front loading
Cooling : Air cooling fan Cooling	Air cooling fan
Display : LED Display	LED

Safe-Touch Steel Body
➤ Safe-Touch Steel Body
High-grade 1500 alumina ceramic fiber insulation for thermal efficiency
➤ High-grade 1500 alumina ceramic fiber insulation for thermal efficiency
Three-side embedded heating elements for uniform temperature distribution
➤ Three-side embedded heating elements for uniform temperature distribution
Robust steel construction with air cooling for safe exterior handling
➤ Robust steel construction with air cooling for safe exterior handling
Front-loading chamber with stainless steel hinged door
➤ Front-loading chamber with stainless steel hinged door
Built-in vent port (optional) for moisture and contaminant removal
➤ Built-in vent port (optional) for moisture and contaminant removal
Optimized chamber design for uniform heat transfer
➤ Optimized chamber design for uniform heat transfer
Microprocessor-based PID controller with auto-tuning
➤ Microprocessor-based PID controller with auto-tuning
Programmable temperature control with multi-segment profiles
➤ Programmable temperature control with multi-segment profiles
Simultaneous display of set and actual temperature
➤ Simultaneous display of set and actual temperature
Precise ±1°C control accuracy for reproducible processes
➤ Precise ±1°C control accuracy for reproducible processes
Integrated control system for stable thermal performance
➤ Integrated control system for stable thermal performance
Overheat protection with automatic shutdown
➤ Overheat protection with automatic shutdown
Broken thermocouple protection system
➤ Broken thermocouple protection system
Power failure recovery resumes operation automatically
➤ Power failure recovery resumes operation automatically
Leakage circuit breaker for electrical safety
➤ Leakage circuit breaker for electrical safety
PID control minimizes temperature overshoot
➤ PID control minimizes temperature overshoot

High-temperature material testing including ceramics, metals, and composites up to 1200°C
➤ High-temperature material testing including ceramics, metals, and composites up to 1200°C
Heat treatment processes such as annealing, sintering, and calcination with controlled ramp rates
➤ Heat treatment processes such as annealing, sintering, and calcination with controlled ramp rates
Pharmaceutical and chemical sample ashing and thermal analysis
➤ Pharmaceutical and chemical sample ashing and thermal analysis
Academic and research labs requiring programmable thermal profiling
➤ Academic and research labs requiring programmable thermal profiling
Quality control and validation processes under controlled temperature conditions
➤ Quality control and validation processes under controlled temperature conditions

Chamber Furnace
➤ Chamber Furnace
Type N Thermocouple
➤ Type N Thermocouple
Crucible tongs
➤ Crucible tongs
Thermal Resistance gloves
➤ Thermal Resistance gloves
Manual book
➤ Manual book

Exhaust Chimney Device
➤ Exhaust Chimney Device
Extra N type Thermocouple
➤ Extra N type Thermocouple
Alumina Crucible
➤ Alumina Crucible

Safe-Touch Steel Body
High-grade 1500 alumina ceramic fiber insulation for thermal efficiency
Three-side embedded heating elements for uniform temperature distribution
Robust steel construction with air cooling for safe exterior handling
Front-loading chamber with stainless steel hinged door
Built-in vent port (optional) for moisture and contaminant removal
Optimized chamber design for uniform heat transfer
Microprocessor-based PID controller with auto-tuning
Programmable temperature control with multi-segment profiles
Simultaneous display of set and actual temperature
Precise ±1°C control accuracy for reproducible processes
Integrated control system for stable thermal performance
Overheat protection with automatic shutdown
Broken thermocouple protection system
Power failure recovery resumes operation automatically
Leakage circuit breaker for electrical safety
PID control minimizes temperature overshoot

Chamber Furnace
Type N Thermocouple
Crucible tongs
Thermal Resistance gloves
Manual book

Exhaust Chimney Device
Extra N type Thermocouple
Alumina Crucible

High-temperature material testing including ceramics, metals, and composites up to 1200°C
Heat treatment processes such as annealing, sintering, and calcination with controlled ramp rates
Pharmaceutical and chemical sample ashing and thermal analysis
Academic and research labs requiring programmable thermal profiling
Quality control and validation processes under controlled temperature conditions