Rubber, Tires, Foam & Elastomer Manufacturing worked example

Rubber Rework Rate at 99% expected line efficiency after rework losses: a worked example

Push expected line efficiency after rework losses up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when rubber rework rate in rubber, tires, foam and elastomer manufacturing is being committed and you need a throughput number you can defend.

The inputs for this scenario

  • Rubber parts completed in the run: 1,200 units (unchanged)
  • Line run time for the batch: 8 hr (unchanged)
  • Expected line efficiency after rework losses: 99 % (raised for this scenario; the documented default is 90)

Working through the calculation

  • Applying the documented formula (Rubber rework rate throughput = rubber rework rate output quantity รท rubber rework rate runtime) to the inputs above produces each figure below.
  • At this operating point the engine returns 149 units/hr for effective rubber rework rate throughput, the number this scenario is built around.
  • At this operating point the engine returns 150 units/hr for raw throughput.
  • At this operating point the engine returns 99 % for expected rubber rework rate efficiency.
  • At this operating point the engine returns 8 hr for rubber rework rate runtime.

How this compares with the baseline

  • Against the tool's baseline example, where expected line efficiency after rework losses sits at 90% and the headline result is 135 units/hr, this scenario comes in 10% above the baseline at 149 units/hr.
  • It computes raw throughput as parts divided by run time, then scales it by an efficiency factor to give effective good units per hour. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Effective rubber rework rate throughput: 149 units/hr (headline result)
  • Raw throughput: 150 units/hr
  • Expected rubber rework rate efficiency: 99 %
  • Rubber rework rate runtime: 8 hr

Run it with your numbers

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

Last reviewed 2026-05-12.