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Success story · Industrial Construction Materials

Flow Is Everything: We Fit a 3-Floor Production Facility onto 2 Floors

At a US-origin manufacturer of industrial components for the construction sector, a two-year lean transformation cut inventory by 70% and raised efficiency by 40%; the system was chosen as the “best practice” among the group companies.

Continuous flow and factory layout transformation in construction materials manufacturing

Real Results Achieved Together

The answer was not more production space but a new flow system in which products move continuously and in balance.

70%reduction in WIP inventory
40%increase in total operational efficiency
3 → 2production floors

Gains of the Transformation

  • The space need of one whole production floor disappeared
  • Injection and assembly were balanced with Kanban
  • Unnecessary transport and internal logistics activities decreased
  • Investment payback time was 5.5 months

Starting Point: A Flow Split Across Three Floors

It is assumed that the larger the production area, the more efficient the operation. Yet a poorly designed factory layout can create excess inventory, long transport distances and a heavy internal logistics load.

The main problem of the three-floor production facility was the interrupted flow of material and product caused by the layout. Distances between operations led to high work-in-process inventory, production areas were filled with stock and the internal logistics workload kept growing. The main problems were:

  • Split flow: Production was divided across floors and workshops operated independently of each other.
  • High inventory and transport: Inventory accumulated between operations, and unnecessary product transport and handling increased the internal logistics workload.
  • Unbalanced processes: There was an imbalance between injection and assembly; production and delivery times grew longer.

Approach: A System Where Products Flow Continuously

The core need was not more production space but a new flow system in which products could move continuously and in balance. We started by redesigning the production flow of the main product group:

  • Existing product and material movements were analyzed.
  • Operations scattered across different stations were combined into a cellular production structure.
  • A one-piece flow system was established for the main product group; processes were linked with a pull system.
  • Injection and assembly operations were synchronized with a Kanban system.
  • Work-in-process inventory levels were limited in a controlled way; lines were balanced to the set production pace.
  • The factory layout was rearranged to support continuous flow.
Cellular production and one-piece flow in a construction materials factory
Areas used for inventory and transport were turned into value-adding production.

Result: The Transformation Scorecard

At the end of the two-year transformation, work-in-process inventory fell 70%, total operational efficiency rose 40% and production moved from three floors to two. The model was chosen as the best practice among the customer’s group companies.

ParameterBeforeAfterImprovement
Work-in-process inventory levelsBaseline-%70Inventory reduction
Total operational efficiencyBaseline+%40Efficiency increase
Number of production floors32One floor of space gained
Investment payback time–5.5 monthsFast payback

If you have high inventory, long transport distances or layout-related production losses in your facility, let us evaluate improvement opportunities together.

Injection and assembly flow synchronized with Kanban in construction materials manufacturing

Request a Quick Diagnosis on Your Shop Floor

With the Quick Shop Floor Diagnosis, let us analyze your factory layout, product flow, inventory levels, internal logistics activities and capacity utilization, and build your tailored lean transformation roadmap together.

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