AMI Automation, in collaboration with Newmont Peñasquito (Zacatecas, Mexico), successfully completed a major motor control modernization during the mine’s annual mill shutdown.

The project upgraded the mill motors’ control systems to DigiQuad^®, a state-of-the-art digital control solution for large twin synchronous motors requiring advanced load balancing in heavy-duty ball mills.

The project was completed in record time, 84 hours per line, meeting Peñasquito’s strict production schedule. By replacing legacy systems with DigiQuad^®, AMI improved the availability, safety, and efficiency of critical grinding equipment while introducing advanced diagnostic and maintenance capabilities.

Project Scope

• 16,000 HP synchronous twin-motor grinding 04 Balls mills Upgrade to DigiQuad^® control.
• Reduce mechanical stress and wear with improved motor coordination.
• Enable advanced diagnostics and alarms with remote support capability.
• Enhance safety during startups, stops, and operational maneuvers.
• Integrate seamlessly with existing control and telemetry systems.

Key Benefits of DigiQuad^®

• Increase Availability: Reduce failures from load imbalances and harsh startups.
• Speed Up Troubleshooting: Faster fault detection and intervention.
• Optimize Operations: Improved process control and energy efficiency.
• Enhance Safety: Built-in protection and robust procedures.
• Ensure Continuous support: 24/7/365 service through AMITech Center (ATC).

Execution Highlights

• Factory Acceptance Tests (FAT): Equipment preparation and verification prior to site work.
• Shutdown Execution: Installation, integration, and commissioning aligned with plant operations.
• Rapid Startup: On-time delivery with minimal impact on production.

Future

This modernization represents a significant step in Newmont Peñasquito’s strategy to enhance the reliability of its critical assets. The successful DigiQuad^® implementation sets the stage for future applications across other mine operations and heavy-industry sectors.