Graphite, Anode & Battery Materials Processing worked example

Milling Throughput at 63% milling line uptime: a worked example

Suppose milling line uptime falls to 63%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate usable milling and classification output for natural graphite, synthetic graphite, hard carbon, or silicon-carbon anode feedstock using kg per cycle, available cycles, uptime, and first-pass yield.

The inputs for this scenario

  • Accepted milled powder per cycle: 180 kg / cycle (held at the documented default)
  • Available milling cycles: 12 cycles (held at the documented default)
  • Milling line uptime: 63 % (the input this scenario stresses; the baseline uses 88)
  • Milling first-pass yield: 82 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross milling output = accepted milled powder per cycle × available milling cycles.
  • Usable milling throughput works out to 1,116 kg at these inputs, and this is the headline figure for the scenario.
  • Gross milling output works out to 2,160 kg at these inputs.
  • Milling downtime loss works out to 799 kg at these inputs.
  • Milling first-pass yield loss works out to 245 kg at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where milling line uptime sits at 88% and the headline result is 1,559 kg, this scenario comes in 28.41% below the baseline at 1,116 kg.
  • It computes net usable milled anode powder by multiplying gross per-cycle output by available cycles, then derating for line uptime and first-pass yield. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Usable milling throughput: 1,116 kg (headline result)
  • Gross milling output: 2,160 kg
  • Milling downtime loss: 799 kg
  • Milling first-pass yield loss: 245 kg

Run it with your numbers

  • To rerun this with your own numbers, open the live Milling Throughput calculator, set milling line uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.