Line Balancing: Distributing Work to Match Takt Time

Line balancing is the process of distributing work among operators so each operator's cycle time is as close to takt time as possible. A perfectly balanced line has no operator above takt (creating a bottleneck) and no operator wasting capacity below it.

The goal: Every bar on the Yamazumi chart touches the takt line. Work content moved from over-takt operators to under-takt operators — no new headcount needed.

Before and After Line Balance

△ Before Rebalancing — Assembly Cell 32 operators over takt

TAKT 2.5h

Chen
1.6h

Reyes
2.9h ▲

Smith
1.3h

Park
2.8h ▲

Ito
1.1h

3.0h 1.5h 0

⚠ Reyes and Park are bottlenecks. Chen, Smith, and Ito have significant spare capacity. Total imbalance: 1.6h over-takt across the cell.

✓ After Rebalancing — same 5 operators, redistributed workAll within takt

TAKT 2.5h

Chen
2.2h

Reyes
2.3h

Smith
2.1h

Park
2.25h

Ito
2.15h

3.0h 1.5h 0

The Rebalancing Process

Collect current cycle time data

TaktClock's Yamazumi tab provides this automatically from session records. No time study needed.

Identify over-takt and under-takt operators

Bars above the takt line are overloaded. Bars below have available capacity. The gap between them is the rebalancing opportunity.

Move work content from over to under

Identify which subprocesses from the over-takt operator can be moved. Check skills matrix — can the under-takt operator do that step?

Validate with live data

After implementing the rebalancing, monitor TaktClock for one shift. The Yamazumi tab will show whether the change worked.

❓ Knowledge Check

A line has 5 operators. Three are below takt, one is slightly above, one is significantly above. What is the first action in line rebalancing?

✓ Correct! Line balancing is about redistributing existing work content — not adding resources. Moving subprocess steps from overloaded operators to those with spare capacity is the first and lowest-cost intervention.

See It Live

These Principles, Running on Your Floor

30 minutes. Live TaktClock demo configured for your areas and processes.