ORE SORTING LABORATORY
OUR SERVICES
Ore Characterization
Testing for heterogeneity and grade distribution
Equipment Audits
Is our sorter performing where it should be?
Sortability Testing
Is my ore sortable?
Calibration Standards
Standardized reference materials for sorter calibration
45 min
OUR STORY
ROKKSTA was founded in 2024 to address a critical need in the sensor-based sorting industry: a dedicated, independent laboratory providing specialized ore characterization and unbiased equipment performance evaluations.
Drawing on expertise gained since 2002, ROKKSTA bridges the gap between equipment OEMs and engineering service providers by offering data-driven insights that empower clients to make fully informed decisions.
The team is committed to advancing the field of sensor-based sorting through transparent, independent, and specialized solutions—ensuring every project achieves its highest potential.
FABIAN RIEDEL
Managing Director, Founder
Twenty years of experience in sensor-based sorting applications in mineral processing and mining.
Positions held as CTO, VP Sales, Technical Director, Country Manager and General Mine Manager in South Africa and Germany.
OUR OFFERINGS
ORE CHARACTERIZATION
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What is the Macro Liberation of our ore?
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Testing for Heterogeneity and grade distribution
SORTABILITY TESTING
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Intrinsic Sortability: Is our ore sortable?
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Focuses on liberation in a sortable size range
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Ideal Sensor Sortability: What is the right sensor?
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Focuses on the identification of a suitable sensor
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Industrial Sensor Sortability: What is the sorter’s performance?
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Focuses on dynamic testing at economically feasible capacities
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EQUIPMENT AUDITS
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Is our sorter performing where it should be?
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What can we do to boost performance?
CALIBRATION STANDARDS
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Standardized reference materials
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Customized to suit your ore body
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Enables XRT Sorter Calibration in the lab and in the field
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Control ore loss and waste dilution independent of OEM
GALLERY
TESTIMONIAL
Chief Geologist, Botswana
“XRT sorting made our mine!"
APPLICATIONS
Our decades of experience in the ore sorting business stretches across various commodities and unit process applications.
COMMODITIES
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Chromite
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Coal
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Copper
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Diamonds
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Iron Ore
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Lithium
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Manganese
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Gold
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Calcite and Dolomite
UNIT PROCESS APPLICATIONS
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Particle sorting
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Bulk sorting
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Pre-concentration
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Final recovery
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Waste rejection
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Contaminant removal
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Grade control