Understanding Magnetic Susceptibility Measurement in Mining and Mineral Processing
How the MAGNASAT® Benchtop System Provides Rapid and Accurate Analysis of Magnetic Materials
Magnetic susceptibility measurement plays an important role in many areas of mining, mineral processing, geological research, and laboratory analysis. Understanding the magnetic properties of a material can provide valuable information about ore characteristics, mineral composition, process performance, and product quality.
The MAGNASAT® Benchtop Magnetic Susceptibility Meter from Ultra-Dynamics Pty Ltd has been developed to provide fast, reliable, and highly precise measurement of magnetic susceptibility for small sample quantities in laboratory and research environments. The system is designed to deliver results within seconds, making it an efficient alternative to more time-consuming laboratory testing methods.
What Is Magnetic Susceptibility?
Magnetic susceptibility is a measure of how a material responds when exposed to an external magnetic field. Different materials exhibit different magnetic behaviours depending on their composition and structure.
In mining and mineral processing applications, magnetic susceptibility measurements can be used to:
- Assess magnetite content
- Characterise iron ore samples
- Evaluate mineral processing performance
- Support geological mapping programs
- Analyse drill core samples
- Conduct research into magnetic mineral behaviour
- Monitor dense media separation processes using magnetite or ferrosilico
How Does the MAGNASAT® Benchtop System Work?
The MAGNASAT® system measures magnetic susceptibility by analysing the changes a sample causes to an alternating current (AC) magnetic field.
When a sample is placed within the measurement system, its magnetic and electrical properties influence the AC magnetic field. The MAGNASAT® electronics detect these changes and calculate the magnetic susceptibility of the material. The system reports results as absolute magnetic susceptibility values, providing highly repeatable and objective measurements.
Sample preparation is straightforward and typically requires crushing material to less than 2 mm particle size before testing. Results are available within seconds, allowing rapid analysis of large numbers of samples.
Applications of the MAGNASAT® Benchtop Magnetic Susceptibility Meter
The versatility of the MAGNASAT® system allows it to be used across a broad range of industries and research applications, including:
Mining and Mineral Processing
- Iron ore analysis
- Magnetite recovery monitoring
- Dense media process optimisation
- Mineral sands operations
- Metal recovery circuits
Geological and Environmental Studies
- Geological field mapping
- Soil and sediment analysis
- Hydrology and sedimentation research
- Pollution studies
Research and Education
- University research programs
- Materials science investigations
- Frequency-dependent magnetic susceptibility studies
Laboratory Testing Services
- Routine sample analysis
- Process development programs
- Comparative testing and quality control
Key Benefits for Laboratories and Processing Operations
The MAGNASAT® Benchtop System offers several advantages over traditional testing approaches:
Rapid Results
Measurements can be completed in seconds, improving laboratory throughput and decision-making speed.
High Precision
The system uses advanced electronics to achieve extremely precise measurements suitable for research and industrial applications.
Easy Operation
Compact, PC-controlled operation reduces operator training requirements and simplifies testing procedures.
Multi-Frequency Capability
Users can investigate frequency-dependent magnetic behaviour across a range of operating frequencies from 200 Hz to 100 kHz.
Data Integration
Results can be stored in Excel-compatible formats and integrated into laboratory information management systems (LIMS) and process reporting workflows.
Why Magnetic Susceptibility Measurement Matters
As mining and mineral processing operations continue to focus on efficiency, recovery, and process optimisation, rapid laboratory measurements become increasingly important.
Reliable magnetic susceptibility data can assist with:
- Faster decision-making
- Improved process control
- Better understanding of ore variability
- Enhanced recovery performance
- Reduced laboratory turnaround times
The ability to obtain accurate measurements quickly allows operators, metallurgists, and researchers to make informed decisions based on objective data.
Learn More About MAGNASAT®
Ultra-Dynamics Pty Ltd has developed a range of MAGNASAT® technologies for laboratory, field, drill core, conveyor, and density measurement applications. These systems are designed to provide practical, reliable solutions for mining, minerals processing, research, and industrial process control.
For more information about the MAGNASAT® Benchtop Magnetic Susceptibility Meter or to discuss your application requirements, contact the team at Ultra-Dynamics Pty Ltd.