Conveyors worked example
Required Line Speed at 99% expected line efficiency: a worked example
What does the result look like when expected line efficiency reaches 99%? The full calculation is worked below with real intermediate numbers. a production engineer needs a speed setpoint that matches customer demand without guessing on the floor
The inputs for this scenario
- Required good output: 1,200 units / hr (unchanged)
- Product pitch on conveyor: 8 in (unchanged)
- Expected line efficiency: 99 % (raised for this scenario; the documented default is 90)
Working through the calculation
- Applying the documented formula (Required throughput rate = required output รท line efficiency) to the inputs above produces each figure below.
- At this operating point the engine returns 13.47 ft / min for required line speed, the number this scenario is built around.
- At this operating point the engine returns 1,212 units / hr for efficiency-adjusted output rate.
- At this operating point the engine returns 8 in for product pitch.
- At this operating point the engine returns 99 % for line efficiency.
How this compares with the baseline
- Against the tool's baseline example, where expected line efficiency sits at 90% and the headline result is 14.81 ft / min, this scenario comes in 9.09% below the baseline at 13.47 ft / min.
- A figure at this level is achievable when expected line efficiency is genuinely sustained, not just peaked for a shift. It assumes single-file product at constant pitch and steady-state flow; it does not account for accumulation zones, indexing dwell, or multi-lane merges where effective pitch changes.
Results at a glance
- Required line speed: 13.47 ft / min (headline result)
- Efficiency-adjusted output rate: 1,212 units / hr
- Product pitch: 8 in
- Line efficiency: 99 %
Run it with your numbers
- Every input above is editable in the live Required Line Speed calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.