Brownfield
Initial State
- Open pit copper mine site
- Productivity and cost reduction as business imperative
- Mineral production restrictions
- Pre-identified bottle necks: drilling and milling
What we did?
- Value Stream Mapping
- Real bottle neck identification: hauling
- Multidisciplinary team integration for value stream analysis
- Identification and prioritization of projects that release bottle neck
- Business objectives re-definition
- Balance Capacity Analysis:
Indicates process level below client demand or bottle neck (hauling)
Underutilized capacity (red)
Value Stream Mapping – Process
Improvement Opportunities
- Performance Centres (pilots in Mine Operations and Maintenance Planning)
- Performance Control through Value Driver Trees and Business Improvement Scorecards
- Variability reduction
- Loading time reduction
- Shifts turns delays reduction
- Visual Management for Performance Control
- Training and coaching over Mine Operations team
Results
- Hauling Fleet Productivity Improvement:
- 18% increase fleet capacity
- 53% queues reduction
- 39% delays reduction waiting for shovels
- 38% delays reduction for load units unavailability
- 32% delays reduction waiting for blasting
- 27% operational delays reduction
- 26% reduction in C1 cost
Improvement – Haul Truck Effective Hours
