Coaltech Research Association

16
CASE STUDY 16 · INTEGRATED MINING AND PROCESSING

The laboratory that studies explosions so mines never see one

Kloppersbos is the national facility where coal dust explosibility is characterised. We funded its upgrade, completed in the 2025/26 year, so the science that protects every underground section has a home for the next generation.

2024 to 2026Upgrade programme
CSIRFacility operator
Coal dust explosibilityCore science
2025/26Upgrade completed
1 facility
the national home of coal dust explosibility research
2026
the year the upgrade completed
2 programmes
explosibility characterisation and in-situ stress measurement
Every section
underground benefits from what is measured here
01
The problem

Old instruments, permanent hazard

Coal dust explodes. Characterising exactly how, for each coal, under which conditions, is the science underneath stone dusting standards, barrier design and every explosion-prevention measure a colliery takes. That science lives at Kloppersbos, and the facility needed investment: ageing equipment carrying a national responsibility, while the evaluation of explosibility test equipment showed where the gaps were.

“Our upgrade of the Kloppersbos explosibility laboratory strengthened the national facility at the heart of coal dust safety.”
Chairperson’s letter, Coaltech Integrated Annual Report 2025/26
02
The research

Rebuild the national instrument

We funded the Kloppersbos explosibility laboratory upgrade, completed within the 2025/26 year and delivered with the CSIR, restoring the facility at the heart of coal dust safety. Alongside it, the in-situ stress measurement programme puts real numbers on the ground stresses South African collieries mine in, feeding both safety and design. Our chairperson’s letter called the upgrade what it is: strengthening the national facility on which coal dust safety depends.

CSIR
Operator of the Kloppersbos facility.
Coaltech Mining Committee
Programme direction and funding case.
Member collieries
The beneficiaries of every characterisation run.
1 facility
stands between coal dust and catastrophe. We made sure it stands well.
03
The impact

Capability, secured

This is not a finding; it is the machine that produces findings. With the upgrade complete, every explosibility characterisation the industry needs for the coming decades has a working national home, and the safety standards built on that data stand on current measurement rather than old equipment’s best effort. Infrastructure is the least glamorous thing research money buys, and sometimes the most important.

2022 to 2023
The case builds
Explosibility test equipment evaluated; the gaps identified.
2024
The commitment
The upgrade programme is funded.
2025/26
Completed
The upgraded laboratory is delivered with the CSIR.
Onward
In service
Characterisation and in-situ stress measurement continue on current equipment.

The evidence. Every claim traces to a published report.

PDFKloppersbos explosibility laboratory upgradeWhat this report showsThe upgrade programme report.2026Open in the Library →
PDFEvaluation of coal dust explosibility test equipmentWhat this report showsThe equipment assessment that built the case.2023Open in the Library →
PDFIntegrated Annual Report 2025/26What this report showsThe completed upgrade, formally reported.2026Open in the Library →
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