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Português Precise multi-sample determination of moisture, ash, volatile matter, loss-on-ignition (LOI), and more through thermogravimetric analysis
Introducing Navas Instruments TGA-2000 and TGA-3000 Series
Traditionally, the thermogravimetric process relied on manual operations with muffle furnaces, which were time-intensive and prone to variability.
Our advanced thermogravimetric analyzers are multi-purpose systems designed for a wide range of applications, including cement, ores, coal and coke, soil, food and feed, plastics, and more. By automating every step, they deliver unmatched precision and efficiency across industries.
With cutting-edge features like dual carousel technology for double sample capacity, real-time weighing via an optional external balance, and seamless data export to Excel, our systems empower laboratories to achieve superior productivity and accuracy.
Additionally, the optional auto crucible-covers placement and removal system simplifies workflows for volatile matter determination in coal and coke, ensuring consistent and precise results.
Our TGAs may appear complex at first glance, but they are designed for effortless operation. Most features are optional, and the instrument autonomously handles the procedures, ensuring a seamless user experience.
Our TGAs are compact and designed to fit comfortably on a tabletop.
Main features
- Multi-purpose systems for a wide range of applications, including cement, ores, and more
- Optional dual carousel for double sample capacity
- Optional auto crucible-covers placement and removal for volatile matter determination
- Optional external balance for real-time weighing
- User-friendly Windows-based software with a ribbon bar and dockable panels
- Configurable data import from text or CSV files, with the option for manual data entry if needed
- Powerful database with capabilities for filtering, sorting, and generating statistics
- Seamless data export to text files, CSV, Excel, or LIMS
Thermogravimetric Analyzers: Precision, Efficiency, and Innovation
Our thermogravimetric analyzers (TGAs) offer state-of-the-art technology for precise weight measurement during thermal analysis, tailored to the needs of laboratories in a wide range of industries. These systems monitor variation of sample mass across temperature and time, providing accurate and reproducible data across a wide range of applications. With a maximum temperature of 1000°C, our TGAs allow users to configure every parameter of the analysis process, including temperature set points, ramp rates, and the type of gas used—air, oxygen, or nitrogen—for each step or slope.
Precision Weighing and Seamless Sample Handling in Our Advanced Furnace System
At the core of our design is a precision digital balance with 0.1 mg sensitivity, located directly beneath the furnace. This balance ensures unmatched accuracy during the analysis process. A robust carousel, capable of holding up to 48 crucibles with our patented dual-carousel system, rotates within the furnace chamber to present each sample to the balance pedestal. The carousel is engineered to rise before rotating and lower each crucible onto the balance pedestal for weighing. This mechanism ensures seamless sample handling and precise measurements at every step of the process.
Enhanced Productivity and Efficiency with Our Innovative TGA Design
Our TGAs incorporate innovative features that enhance productivity and efficiency, setting them apart from conventional systems. One such feature is the optional external balance, which records initial sample weights during the analysis without requiring the furnace to cool to room temperature. This capability eliminates a significant bottleneck in traditional TGAs, where the furnace must cool completely before new samples can be prepared and weighed. Instead, our TGAs allow the furnace to cool to 70–80°C, enabling faster batch transitions and minimizing downtime. This innovation enhances laboratory throughput and optimizes workflow, making our TGAs an invaluable tool for high-demand environments.
Automated Crucible Cover Handling for Precise Volatile Matter Analysis
For volatile matter determination in coal and coke, our TGAs offer an optional auto crucible-covers placement and removal system. This feature automates the process of placing and removing crucible covers during analysis, ensuring consistency and precision while reducing manual intervention. The system is particularly useful for workflows requiring sequential moisture, volatile matter, and ash determinations.
Unmatched Flexibility and Efficiency in Thermogravimetric Analysis
With the ability to configure parameters for each analysis step—such as temperature, ramp rate, gas type, and criteria for determining step completion (stable sample weight or time)—our TGAs offer unparalleled flexibility. Whether you are analyzing a small batch of 11 samples or maximizing capacity with 48 crucibles, our TGAs are designed to adapt to your needs while maintaining precision and reliability.
The inclusion of the optional external balance provides another layer of efficiency, allowing you to prepare the next batch of samples while the current batch is still in progress. This feature not only increases productivity but also ensures that initial sample weights are accurately recorded without interference from the furnace’s heat. By eliminating unnecessary delays and maximizing operational efficiency, our TGAs deliver a superior solution for laboratories that prioritize performance and precision.
Why Choose Navas Instruments Thermogravimetric Analyzers?
Our thermogravimetric analyzers combine innovative technology, precision engineering, and user-centric design to elevate the standards of thermal analysis. Whether for routine testing or advanced applications, they offer the tools necessary to achieve consistent, accurate, and efficient results, making them the optimal choice for laboratories seeking to optimize their processes.
Procedure for TGA Analysis
The TGA system supports two workflows: a fully automated procedure and a manual alternative using an external balance. Below are the steps for each workflow.
Automated Procedure
- Select the Analysis Method: Choose from pre-configured software methods with user-defined parameters, such as temperature, gas type, and result criteria, for each analysis step or slope.
- Start the Weighing Procedure: Optionally, sample data can be imported automatically from a text or CSV file, and empty crucibles placed on the carousel for automatic weighing.
- Add Samples: Place samples into the crucibles and enter sample identification codes and other data using the keyboard if they were not previously imported. Identification codes can also be imported manually, one by one.
- Automatic Re-weighing: Samples are re-weighed automatically with the furnace lid closed, eliminating the need for user intervention and enhancing precision.
- Optionally Weigh Crucible Covers: The upper carousel is optionally lowered automatically to weigh crucible covers for volatile matter determination in coal or coke.
- Begin Analysis: The TGA system automates workflows like alternating between carousels or handling crucible covers for specific procedures.
- Export Results: Export data in multiple formats or print reports as needed.
Manual Procedure with External Balance
- Weighing: Use the external balance to weigh crucibles, samples, and optionally covers during analysis.
- Furnace Cooling: After cooling the furnace to 70°C or 80°C, manually transfer samples to the carousel.
- Start Analysis: Begin the analysis immediately, saving time by skipping the initial weighing and minimizing cooling time
- Export Results: Export or print results in various formats for reporting.
Operation Features of TGA Instruments
Precision Weighing on Digital Balance
The crucible is carefully positioned on the balance pedestal to ensure accurate sample weight measurement.
Carousel Elevated for Sample Rotation
The furnace carousel lifts before smoothly rotating to the next sample position, ensuring seamless operation.
Complete Precision Digital Balance
The TGA features an internal high-precision digital balance with 0.1 mg sensitivity for consistent, reliable measurements.
High-Capacity Dual Carousel Design
The TGA’s dual-carousel design accommodates double the number of samples, enabling high-throughput analysis.
Automated Crucible Covers Placement
The TGA system automates crucible cover placement, ensuring precise volatile matter determination in coal and coke.
Automated Crucible Covers Removal
Crucible covers are automatically removed, streamlining the workflow and reducing manual handling.
Small Footprint for High Throughput
Control one or two furnaces from a single PC, processing up to 96 crucibles per batch. The system's compact design maximizes space and efficiency.
TGA Software Features
Easy-to-Use Windows Software
Effortlessly configure and operate the TGA system with an intuitive Windows-based interface. The software features a user-friendly ribbon bar, customizable layouts, and configurable themes and colors.
Flexible Data Entry
Crucible, sample, and lid weights are recorded using a precision digital balance with 0.1 mg sensitivity. Sample identification codes can be entered manually or imported seamlessly.
Data Export to Excel or LIMS
Export data in formats such as TXT, CSV, or XLS. Exported files can include detailed sample information, results, and raw data such as weights, temperatures, and times.
Graphics for Each Sample
Dynamic charts display weight and temperature trends with fully configurable axes, colors, and legends, providing clear visual representations for each sample.
Powerful Database
The integrated database allows users to filter, sort, and export data while generating statistics such as averages and standard deviations. Results can be printed or exported effortlessly.
Optional External Balance Software
The optional external balance software records initial sample weights during analysis, operating seamlessly alongside the TGA software to maximize efficiency.
Applications of Thermogravimetric Analysis
Coal and Coke
Determining moisture, volatile matter, and ash content in coal and coke is vital for assessing fuel quality and combustion efficiency.
Cement
Evaluating the hydration process and quantifying components like calcium hydroxide and carbonates to ensure product quality.
Ores
Analyzing thermal decomposition and moisture content in ores such as iron, bauxite, and nickel aids in processing and beneficiation.
Gypsum
Assessing the dehydration behavior of gypsum is crucial for manufacturing processes in construction materials.
Soil
Determining organic matter content and thermal stability in soils supports environmental and agricultural studies.
Food and Feed Products
Measuring moisture and ash content in products like flour, dough, and snacks ensures quality control and regulatory compliance.
Graphite
Evaluating purity and thermal stability of graphite is essential for applications in batteries and refractories.
Plastics
Analyzing decomposition temperatures and filler content in polymers aids in material development and quality assurance.
Rubbers
Assessing thermal degradation and compositional analysis in rubber materials supports product development and performance evaluation.
Fertilizers
Determining moisture content and thermal stability in fertilizers ensures efficacy and storage safety.
Used Engine Oil
Analyzing thermal degradation and residue content in used engine oils assists in recycling and disposal processes.
And more...
Thermogravimetric analysis is versatile and applicable to a wide range of materials across various industries.
Technical Specifications of Thermogravimetric Analyzers
Designed for Precision, Flexibility, and Productivity
| Parameter | Specification |
|---|---|
| Temperature Range | Ambient to 1000°C, user-configurable |
| Sample Capacity | Up to 48 crucibles (with dual carousel) |
| Balance Sensitivity | High-precision balance with 0.1 mg sensitivity |
| Gas Control | Fully configurable: Air, Oxygen, or Nitrogen |
| Cooling Capability | Rapid cooling to 70–80°C for faster batch transitions |
| Software Features | Windows-based software with customizable charts, data export, and statistics |
| External Balance (Optional) | Allows real-time recording of initial sample weights for increased productivity |
| Data Export Formats | TXT, CSV, and Excel file format (XLS) |
| System Configuration | Single or dual furnace operation with up to 96 crucibles per batch |
| Database Management | Integrated database for filtering, sorting, statistics, and automated reporting |