Best-Day Production Diagnostic

The Best-Day Diagnostic

Your operation has already proven what it can do. This tool measures how much of that proven capacity your current operating design is capable of delivering (the hidden capacity) — it is built on ninety-plus documented interventions over 20 years, and checks how close you are running to a balanced capacity chain as well as the expected capacity available to be freed.

🔒 Your data never leaves this page. All analysis runs in your browser — nothing is uploaded, stored, or visible to Stratflow or anyone else.

1 · Your daily production data

Paste six months of daily production — three at the very least — in two columns: date and daily tonnes (or BCM, ounces, m²). Copy straight from Excel, or upload a CSV or Excel (.xlsx) file. A day-number column (1, 2, 3…) works as well as dates.

Why six months: the best day happens when every stage of the chain runs close to its capacity for that day, and that is a rare statistical occurrence. A short window may not contain a single genuine alignment. If your file holds several years, the tool uses the most recent 6 months by default; this is to increase the likelihood that the design and operating rules are constant in this period. Change that below.

Before you run it, take out reporting artefacts: stockpile reclaim booked as ROM, a reconciliation or survey adjustment posted to a single day, a month-end catch-up. Those are not production. But leave every genuine day in, however unusual — the best day is a statistical outlier, and removing it compromises the calculation.

download a sample Excel file ↓

2 · What your data says

Demonstrated capacity gap
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What the 25% trigger indicates
A gap of 25% or more satisfies the Stratflow heuristic for a balanced-capacity setup. In this pattern, normal variability passes through the chain because buffers and protective capacity are inadequate. The apparent bottleneck wanders, local optimisation increases interference, and chronic firefighting becomes the normal way of operating.

That best run was not produced by different people, different equipment or a different orebody. It was produced by the same crews, the same fleet, the same plant and the same ground — on a stretch when, for a while, everything happened to line up. The capacity to produce at that rate is physically present in your operation, every single day.

“Although we cannot realistically produce at the best-day level every day, 20 years of experience show it is possible to move the average much closer — by moving away from a balanced-capacity design.”
— Hendrik Lourens, The Thing That’s Holding Mining Back

3 · The evidence

Daily production, with your daily average (dashed) and your demonstrated capacity — the best three days (dotted). The band between them is the subject of this test.

4 · What the gap is worth in tonnes

Where the 25% signature is confirmed, the range above is the documented outcome band across ninety-plus flow interventions: 10–40% more output with the same resources, typically 20%, applied to your current annual output (calculated from the average daily ROM of your data). Your demonstrated capacity is the physical ceiling; the range is what implementations have actually delivered.

5 · What it is worth in money (optional — nothing leaves this page)

How this was calculated
If the gap is real on your data, the rest of the argument applies to you.
The gap can be closed without capital, and the first step is fully reversible: a contained ninety-day experiment your operation can stop at any time.

See the documented cases ›

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