Labotemp Muffle Furnace FMU-25 is a chamber furnace with MoSi₂ heating elements capable of operation up to 1700°C. The 64 L chamber is suitable for applications such as hardening, tempering, normalizing, stress relieving, calcination, ceramic processing, and heat treatment of steel parts. Powerful MoSi₂ heaters are positioned vertically on two sides of the chamber to provide effective heating, while the cubical, brick-insulated construction supports thermal stability during extended high-temperature operation. The furnace is particularly suited to industrial laboratories, research facilities, materials testing, and production environments requiring controlled high-temperature processing.
Reliable temperature control is provided by a precision PID controller with a K-type thermocouple and accuracy of ±1°C. The rugged construction incorporates fan cooling to help maintain a lower external surface temperature, while overheat protection shuts the furnace down if the temperature exceeds the acceptable range or the thermocouple malfunctions. Power-failure protection automatically resumes operation after power is restored, supporting process continuity. With CE certification and an 80 kW, three-phase 380 V power supply, this high-efficiency furnace is built for demanding laboratory and industrial workloads where dependable performance and long-term reliability matter.
Why Choose Labotemp Muffle Furnace FMU-25?
✓ High-Temperature Capability: Operation up to 1700°C with powerful MoSi₂ heating elements.
✓ Large Working Volume: 64 L chamber for larger heat-treatment loads.
✓ Precise Control: PID temperature control with ±1°C accuracy.
| General Specifications | |
|
Maximum Temperature : 1700°C Maximum Temperature |
1700°C |
|
Chamber Capacity : 64 L Chamber Capacity |
64 L |
|
Chamber Size (W × D × H) : 400 × 400 × 400 mm Chamber Size (W × D × H) |
400 × 400 × 400 mm |
|
Heating Elements : MoSi₂ Heating Elements |
MoSi₂ |
|
Heating Element Arrangement : Vertical, Two-Side Heating Heating Element Arrangement |
Vertical, Two-Side Heating |
|
Chamber Construction : Cubical Brick-Insulated Chamber Construction |
Cubical Brick-Insulated |
|
Temperature Controller : Digital PID Controller Temperature Controller |
Digital PID Controller |
|
Temperature Sensor : Thermocouple Temperature Sensor |
Thermocouple |
|
Temperature Control Accuracy : ±1°C Temperature Control Accuracy |
±1°C |
|
Cooling System : Fan Cooling Cooling System |
Fan Cooling |
| Electrical & Construction | |
|
Power Supply : 415 V, 50 Hz Power Supply |
415 V, 50 Hz |
|
Power : 18 kW Power |
18 kW |
|
Phase : Three Phase Phase |
Three Phase |
|
Safety Protection : Over-Temperature Protection Safety Protection |
Over-Temperature Protection |
|
Power Failure Protection : Automatic Operation Recovery Power Failure Protection |
Automatic Operation Recovery |
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:
Temperature Sensor: Thermocouple
Temperature Controller: Digital PID Controller
Temperature Control Accuracy: ±1°C
Safety Protection: Over-Temperature Protection
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
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
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℃
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
