📋 Case Study

Automotive Tier-1 Assembly Line Labor Optimization

Chronic overtime, 22% idle time, and inconsistent SMV adherence across shifts

🏗️ Project Overview

High-volume door module assembly line in Ohio

🎯 Challenge

Chronic overtime, 22% idle time, and inconsistent SMV adherence across shifts

🔧 Design Approach

Redesigned cell layout with cross-trained operators; implemented real-time digital labor tracking and daily huddle-based micro-improvements

📐 Design Diagram

Automotive Tier-1 Assembly Line Labor OptimizationCell ASMV: 42sCell BSMV: 44sCell CSMV: 40sReal-time Digital Labor Tracking Dashboard• Live utilization % • SMV deviation alerts • Huddle action logDaily 15-min Huddle Process• Micro-improvements tracked • Cross-training progress • Shift handover metricsCycle Time: 44sBalance Loss: 18% → 6%Utilization: 78% → 92%

AI-generated project design illustration

📐 Key Calculations

Labor Utilization Rate

(Actual Work Time / Available Time) × 100
Result: 78% → 92%
Identified hidden downtime sources

Balance Loss

1 − (Cycle Time / Sum of Station Times)
Result: 18% → 6%
Enabled reduction from 12 to 9 stations

📊 Results

17% reduction in labor hours/unit, $2.3M annual savings, 35% decrease in shift-to-shift variance

💡 Lessons Learned

  • Real-time visibility drives behavioral change
  • SMV must be co-developed with operators
  • Daily feedback loops outperform quarterly reviews

Key Takeaways

  • 1Real-time visibility drives behavioral change
  • 2SMV must be co-developed with operators
  • 3Daily feedback loops outperform quarterly reviews