Glass Container & Bottle Manufacturing worked example

Furnace Pull Rate at 99% target pull performance benchmark: a worked example

This scenario runs the furnace pull rate calculation on the strong side: 99% target pull performance benchmark, with every other input held at its documented default. Use it when the furnace operator, batch house, or plant manager needs to see whether melt pull is supporting demand without over-pulling the furnace, starving the IS machines, or creating excess glass loss.

The inputs for this scenario

  • Actual furnace pull achieved: 455 tons (unchanged)
  • Planned furnace pull target: 475 tons (unchanged)
  • Target pull performance benchmark: 99 % (raised for this scenario; the documented default is 98)

Working through the calculation

  • Applying the documented formula (Furnace pull performance = actual furnace pull ÷ planned furnace pull × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 95.79 % for furnace pull performance, the number this scenario is built around.
  • At this operating point the engine returns 3.21 points for pull performance gap to target.
  • At this operating point the engine returns 455 count for actual furnace pull.
  • At this operating point the engine returns 475 count for planned furnace pull.

How this compares with the baseline

  • Against the tool's baseline example, where target pull performance benchmark sits at 98% and the headline result is 95.79 %, this scenario lands almost exactly on the baseline at 95.79 %.
  • Use it at every shift handover and in daily production reviews to confirm the furnace is hitting its scheduled tonnage and to flag drift before it compounds. 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

  • Furnace pull performance: 95.79 % (headline result)
  • Pull performance gap to target: 3.21 points
  • Actual furnace pull: 455 count
  • Planned furnace pull: 475 count

Run it with your numbers

  • Every input above is editable in the live Furnace Pull Rate calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.