

Labotemp Muffle Furnace FMU-22 is a high-temperature laboratory muffle furnace engineered for demanding sintering, ceramic research, metal material testing, and advanced composite processing applications requiring stable thermal performance up to 1700°C. Built around premium 1800-grade MoSi2 heating rods with excellent high-temperature oxidation resistance, this furnace delivers consistent and clean heat treatment in a 12-litre chamber (300×200×200mm). The high-purity ultra-clean alumina polycrystalline fiber insulation, vacuum-formed for exceptional chemical stability, effectively prevents sample contamination and ensures sintering purity across critical research workflows.
The dual-carbon shell air-cooled structure with built-in forced convection keeps the furnace surface within room temperature +45°C, ensuring operator safety during continuous high-temperature operation. A 50-segment programmable digital PID intelligent control system paired with precision B-type thermocouples delivers ±1°C temperature accuracy and repeatable thermal profiles for complex research protocols. With 6kW single-phase power supply and optional gas inlet/outlet, exhaust port, touchscreen, and RS485 communication interface, the FMU-22 supports both standard and atmosphere-controlled sintering environments.
Why Choose Labotemp Muffle Furnace FMU-22?
✓ Extreme temperature capability: MoSi2 heating rods enable stable continuous operation up to 1600°C with 1700°C peak performance
✓ Precise programmable control: 50-segment PID controller with B-type thermocouples delivers ±1°C accuracy for repeatable results
✓ Safe surface design: Air-cooled dual-carbon shell structure maintains cool exterior for secure daily laboratory operation
| No. | Specification | Value |
|---|---|---|
| Technical Specifications | ||
| 1 | Maximum Temperature | 1700 °C |
| 2 | Continuous Operating Temperature | ≤ 1600 °C |
| 3 | Heating Element | Premium 1800-grade MoSi₂ (Silicon Molybdenum) Rods |
| 4 | Temperature Sensor | B-Type Thermocouple |
| 5 | Temperature Control | 50-Segment Programmable Digital PID Controller |
| 6 | Temperature Accuracy | ±1 °C |
| 7 | Chamber Insulation | High-Purity Ultra-Clean Alumina Polycrystalline Fiber with Vacuum Forming |
| Electrical & Performance | ||
| 8 | Power Supply | 220V 50/60Hz |
| 9 | Rated Power | 6 kW |
| 10 | Cooling Method | Built-in Forced Air Convection |
| Chamber & Construction | ||
| 11 | Inner Chamber Dimensions (W × D × H) | 300 × 200 × 200 mm |
| 12 | Outer Dimensions (W × D × H) | 600 × 695 × 920 mm |
| 13 | Chamber Volume | 12L |
| 14 | Structure | Dual-Chamber Shell with Forced Air Cooling |
| 15 | Surface Temperature | Ambient +45 °C |
| 16 | Gross Weight | 250kg |
| 17 | Package Size | 700x800x1070mm |
Advanced Ceramic Sintering:
Designed for sintering advanced ceramics at temperatures up to 1700°C with precise thermal control and contamination-free heating.
Powder Metallurgy Research:
Suitable for densification and heat treatment of metal powders used in research and material development.
Composite Material Processing:
Supports thermal processing and evaluation of high-temperature composite materials under stable heating conditions.
Refractory Material Testing:
Used for firing, heat resistance evaluation, and quality assessment of refractory materials in laboratories.
Glass and Specialty Material:
Ideal for high-temperature melting, annealing, and thermal characterization of specialty glass and inorganic materials.
Metallurgical Heat Treatment:
Performs annealing, oxidation studies, and high-temperature material testing for ferrous and non-ferrous alloys.
