Lean Manufacturing & Operations worked example

Heijunka Leveling Pitch with available production time per shift of 1,100 min: a worked example

This scenario runs the heijunka leveling pitch calculation on the strong side: available production time per shift of 1,100 min, with every other input held at its documented default. Use this calculator when designing a heijunka box schedule to determine the time slot size for leveling production of multiple product variants across the shift.

The inputs for this scenario

  • Available production time per shift: 1,100 min (raised for this scenario; the documented default is 450)
  • Number of pitch increments per shift: 30 increments (unchanged)
  • Time unit conversion factor: 1 x (unchanged)

Working through the calculation

  • Applying the documented formula (Heijunka Pitch = Available Time / Pitch Increments x Conversion) to the inputs above produces each figure below.
  • At this operating point the engine returns 36.67 min for heijunka pitch interval (min), the number this scenario is built around.
  • At this operating point the engine returns 36.67 value for raw ratio.
  • At this operating point the engine returns 1 x for conversion factor.
  • At this operating point the engine returns 30 value for pitch increments per shift.

How this compares with the baseline

  • Against the tool's baseline example, where available production time per shift sits at 450 min and the headline result is 15 min, this scenario comes in 144% above the baseline at 36.67 min.
  • Use it when building or tuning a Heijunka box so each column represents an equal, manageable slice of the shift rather than an arbitrary batch. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Heijunka pitch interval (min): 36.67 min (headline result)
  • Raw ratio: 36.67 value
  • Conversion factor: 1 x
  • Pitch increments per shift: 30 value

Run it with your numbers

  • Every input above is editable in the live Heijunka Leveling Pitch calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.