Coatings, Inks & Specialty Chemical Production worked example

Mixing Batch Time at 14% charging, sampling, and adjustment allowance: a worked example

Suppose charging, sampling, and adjustment allowance falls to 14%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate mixing batch time from required batch work, mixer processing rate, and allowance for charging, sampling, and adjustments.

The inputs for this scenario

  • Batch workload to mix: 4,800 lb (held at the documented default)
  • Mixer throughput rate: 80 lb / min (held at the documented default)
  • Charging, sampling, and adjustment allowance: 14 % (the input this scenario stresses; the baseline uses 20)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base mixing batch time = batch workload to mix รท mixer processing rate.
  • estimated mixing batch time works out to 68.4 hr at these inputs, and this is the headline figure for the scenario.
  • base mixing batch time works out to 60 hr at these inputs.
  • charging, sampling, and adjustment allowance works out to 14 % at these inputs.
  • mixer processing rate works out to 80 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where charging, sampling, and adjustment allowance sits at 20% and the headline result is 72 hr, this scenario comes in 5% below the baseline at 68.4 hr.
  • It computes the estimated mixing batch time in hours by dividing batch workload by mixer throughput, then inflating that base time by a charging, sampling, and adjustment allowance. 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

  • estimated mixing batch time: 68.4 hr (headline result)
  • base mixing batch time: 60 hr
  • charging, sampling, and adjustment allowance: 14 %
  • mixer processing rate: 80 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Mixing Batch Time calculator, set charging, sampling, and adjustment allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.