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Case Study - Improving Rock Fragmentation by 10% via 6 Sigma, generating $12,000,000 extra production


The Mining function of a large mine was delivering sub-optimal fragmented rock from the Drill and Blast process, at just 90% passing 750mm.

1. We sampled drilled holes

To measure the location, quality and consistency of the holes drilled.

2. We graphed the results

On a Process Behaviour Chart to understand whether the problem was systemic or not, as that determines how a problem is most effectively and efficiently addressed.

3. We identified and addressed systemic issues

To remove them from the process and prevent their recurrence.

4. We continued to measure

To ensure the changes were improvements, and were sustained.

5. Result

Rock Fragmentation improved by almost 10%, with 98.8% of rock passing 750mm, generating over $12,000,000 per year in increased production!


Delivery to Plan


Rock Fragmentation Improvement


ROI from aorist consultancy, training and coaching

Businesses typically benefit from a 50 - 100+ times rate of return, when measuring the cost of an aorist Lean 6 Sigma or Systems Thinking / Systems Dynamics Simulation training course and coaching against the benefits derived from applying it the very first time in their business.