Calcination furnace FMU-23

thermaloxidationheat treatment

Overview
Labotemp Muffle Furnace FMU-23 is a compact high-temperature laboratory muffle furnace engineered for precision sintering, ceramic research, metal material testing and advanced composite processing requiring stable thermal performance up to 1700 °C. The unit uses 1800-grade MoSi₂ heating rods with high oxidation resistance and provides consistent, low-contamination heat treatment in an 8 L chamber (200 × 200 × 200 mm). High-purity, ultra-clean alumina polycrystalline fiber insulation is vacuum-formed to minimize chemical interaction and ensure sample purity in critical workflows.

Design & Safety
The dual-carbon shell with built-in forced-air convection keeps the external surface within ambient +45 °C, improving operator safety during prolonged high-temperature cycles. Forced-air cooling and a ventilated cabinet reduce cabinet temperatures during extended runs. Heavy-duty steel construction ensures structural rigidity for laboratory and industrial use.

Control & Performance
A 50-segment programmable digital PID controller combined with precision B-type thermocouples delivers ±1 °C temperature accuracy and repeatable thermal profiles for complex research protocols. Standard electrical configuration is single-phase 220 V 50/60 Hz with rated power 5 kW. Optional configurations include gas inlet/outlet and exhaust port for atmosphere control, touchscreen controller and RS485 interface for integration and automation.

Why Choose FMU-23

• Extreme temperature capability: MoSi₂ heating rods enable stable continuous operation up to 1600 °C with 1700 °C peak performance.
• Contamination-free sintering: Vacuum-formed alumina fiber chamber minimizes contamination and preserves sample purity at high temperatures.
• Precise programmable control: 50-segment PID control with B-type thermocouples ensures ±1 °C accuracy and repeatability.

Key Features

• 8 L compact chamber (200 × 200 × 200 mm)
• 1800-grade MoSi₂ (silicon molybdenum) heating rods for rapid heating and oxidation resistance
• High-purity ultra-clean alumina polycrystalline fiber (vacuum-formed) insulation to reduce contamination
• Programmable PID microprocessor controller (50 segments)
• B-type thermocouple temperature monitoring
• Forced-air cooling with ventilated cabinet design
• Heavy-duty steel construction for continuous laboratory/industrial use

Applications

• Advanced ceramic sintering
  High-temperature sintering of advanced ceramics requiring precise control and contamination-free heating up to 1700 °C.
• Materials R&D
  Thermal processing, heat treatment and characterization of metals, composites and refractory materials in research labs.
• Powder metallurgy
  Sintering of metallic powders and engineered materials using programmable heating profiles for consistent results.
• High-temperature heat treatment
  Annealing, calcination and thermal conditioning of heat-resistant materials with accurate PID control.
• Industrial & quality control
  Process validation, material evaluation and routine high-temperature testing in industrial R&D and QA labs.
• Atmosphere-controlled processing
  Supports controlled-atmosphere sintering with optional gas inlet/outlet and exhaust system for specialized thermal applications.

Specifications

• Maximum temperature: 1700 °C
• Continuous operating temperature: ≤ 1600 °C
• Heating element: 1800-grade MoSi₂ (silicon molybdenum) rods
• Temperature sensor: B-type thermocouple
• Temperature control: 50-segment programmable digital PID controller
• Temperature accuracy: ±1 °C
• Chamber insulation: High-purity ultra-clean alumina polycrystalline fiber (vacuum-formed)
• Power supply: 220 V 50/60 Hz
• Rated power: 5 kW
• Phase: Single phase
• Inner chamber dimensions (D × W × H): 200 × 200 × 200 mm
• Chamber capacity: 8 liters
• Outer dimensions (D × W × H): 620 × 600 × 920 mm
• Construction: Dual-carbon shell with built-in forced-air cooling
• Surface temperature: ≤ ambient +45 °C
• Cooling method: Forced-air convection
• Gross weight: 220 kg
• Package size: 750 × 740 × 1160 mm
• Options: Gas inlet/outlet and exhaust port for controlled-atmosphere processing; touchscreen controller and RS485 communication interface available