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Português What Is a Muffle Furnace? From Muffle Furnaces to Automated Thermogravimetric Analysis
A muffle furnace has traditionally been used in laboratories for high-temperature applications such as ashing, loss-on-ignition (LOI), moisture determination, and materials testing. These furnaces provide a controlled environment to heat samples in crucibles, driving off volatile components or reducing materials to ash for further analysis. They are widely applied in industries ranging from cement and mining to food, feed, and environmental testing.
Although effective, muffle furnaces have clear limitations. Each sample typically requires manual loading, weighing, heating, and monitoring. Single-sample operation slows productivity, while variations in handling introduce inconsistencies. Recording results often relies on manual entry, which can further increase errors and reduce traceability.
The multi-sample, multi-stage thermogravimetric analyzer (TGA) from Navas Instruments offers a modern alternative. Instead of processing one crucible at a time, the instrument handles multiple samples simultaneously, with programmable temperature stages that replicate and extend traditional furnace methods. Integrated weighing records precise mass changes throughout the analysis, delivering accurate results for parameters such as moisture, volatile matter, ash, and LOI.
By automating sample handling, weighing, heating, and data collection, our system not only replaces the manual operation of muffle furnaces but also increases laboratory throughput, improves accuracy, and enhances reproducibility. Data can be exported directly to Excel or LIMS, ensuring seamless traceability and integration into laboratory workflows.
For laboratories seeking greater efficiency, reliability, and ease of use, the Navas Instruments TGA represents the next step beyond the muffle furnace—delivering advanced performance in a fully automated, multi-sample, multi-stage system.
