Free plant trial tool · Browser-local calculation
Enter rod additions, starting and ending mill charge, and dry feed. Calculate kg/t for the baseline and trial, then copy or export the records.
Grinding rods →Mass-balance boundary: recovered removal categories explain the gross result; they are not added to it again.
Send rod diameter, length, quantity, current material, mill duty, inspection requirements and destination.
Prepare a grinding rod enquiry (new tab)Calculation method
Gross consumption = M-in − M-out − (ending charge − opening charge)Gross kg/t = gross consumption ÷ dry new feedThe residual equals gross consumption minus separately weighed broken, bent, planned, and other recovered removals. It may include progressive wear, carryout, unweighed fragments, mixing or measurement error, so it is not a measurement of progressive wear alone.
Workbook
The downloadable Excel ledger includes a formula-linked baseline/trial summary, an editable trial protocol, a filtered operating-block table, field definitions, formulas, and source notes. Only rows explicitly marked “Yes” are included in the weighted summary.
Interpretation
It reports gross rod consumption across the declared mill boundary divided by metric tonnes of dry new feed in the same operating block. It is a mass-balance result, not a direct measurement of progressive wear alone.
Those recovered categories help explain the gross replacement burden. They are included within the mass balance and must not be added to gross consumption a second time.
No. Ore and feed, throughput, product target, charge practice, liner state, downtime, measurement uncertainty, and repeated operating windows still need buyer engineering review.