Industrial engineering formula
How evenly work is spread across stations. Total work content divided by stations × bottleneck station time.
Balancing efficiency % = total work content / (number of stations × bottleneck station time) × 100
| Symbol | Meaning | Unit |
|---|---|---|
| t_i | Work content of station i | min |
| n | Number of stations | - |
| t_max | Time of the slowest (bottleneck) station | min |
Use it to compare balancing options and to measure improvement after rebalancing.
Four stations with 0.50, 0.60, 0.40 and 0.50 minutes of work.
Line balancing spreads the operations of a garment across operators and machines so work flows at the target rate without piles of WIP or idle people. A practical step-by-step method with a worked example, balancing efficiency and common mistakes.
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