We have provided engineering services to the mining industry, including electrical bid specifications, electrical design, automation programming, and commissioning services. Our work has primarily involved mill operations, with such projects as:
- New mill feed, classification, and load-out electrical systems were designed, programmed, and commissioned. We specified and supplied a new 12 section MCC for this lineup. Closed loop control of air flows, level control, and feed rates ensured that product quality was consistent and operator involvement minimized.
- An electrical retrofit to increase capacity on an air classification system was designed, programmed, and commissioned. We specified and supplied the drive cabinets and PLC hardware for this lineup, utilizing remote I/O blocks to simplify wiring.
- Commissioning services for a mill system designed by others.
Our latest projects have involved networking Allen-Bradley ControlLogix PLCs with PowerFlex 70, 700, and 1336 Plus II drives, along with interfacing Rice Lake Weigh Controllers and Siemens Milltronics weigh scales. Other projects include:
> Pebble Mill and Classification System
> Retrofit of Four Quadrant Secondary Feed Classification System
> Integration of Mine PLCs
> HMI Rewrite
> Semi-Autogenous Mill Control