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Mining Projects

Mining Electrical Contractor Expertise

Mining is one of the most demanding and highly regulated industries, requiring precision, discipline, and a deep understanding of the hazards unique to active sites. Choosing an electrical partner without proven mining experience can create costly downtime and put lives at risk.

At Knobelsdorff, our crews bring decades of experience in both open-pit and underground operations. We know what it takes to work safely and efficiently around heavy mobile equipment, high-voltage systems, confined spaces, and explosive environments. Every electrician, foreman, and project manager is MSHA Part 46 and 48 certified and completes extensive ongoing training through our in-house safety program, which exceeds federal and state standards.

We engineer, install, and maintain the power and control systems that keep production moving—from 15kV switchgear and MCC installations to conveyor systems, crushers, processing plants, and site-wide distribution. Our safety culture drives every decision in the field, ensuring projects are executed with zero compromise to compliance, worker protection, or system reliability.

Full-Scope Electrical Services for Mining Operations

Our teams have supported mining operations across the country, covering everything from new construction and commissioning to preventative maintenance and emergency repair. We bring proven experience in both open-pit and underground facilities, supporting operations that extract:

  • Iron ore
  • Coal
  • Limestone
  • Sand and aggregates
  • Other metals and minerals

Wherever the job site, KE provides turnkey electrical services designed to keep production moving while protecting workers and assets.

Experience in the Field

Iron Mines

KE performs electrical and power services in iron mines across the nation, including preventative maintenance on an outdoor lineup of 15kV switchgear, indoor 15kV, 5kV and 480 Volt line-ups. Multiple transformer inspections of 5 MVA and smaller units involved cleaning and repair of units that were leaking, low on oil, needed nitrogen or other issues. We also assisted in installing new switchgear and MCC sections at several locations throughout the mine.

Open-Pit Crushed Rock

At multiple locations in Iowa, Minnesota and Missouri, KE has been involved with several crushed rock open pit operations, providing all aspects of electrical construction and maintenance, including installing new conveyors, crushers, switchgear and all other general electrical service needed to keep these busy, hard-working operations up and running.

Sand Processing Plants

KE assesses the safety and compliance of electrical systems at sand plants across the country. This includes completing accurate one-line drawings of sites that include all cable, transformer and overcurrent device information. Work performed also includes engineering review of all defects found on-site and KE providing updated drawings to show corrective actions needed. In one instance, KE also verified the temporary power scheme was connected in a manner that would effectively protect person and property. A three-line drawing was created, and the protection system was reviewed to ensure its safety. Further engineering and code review was completed at the site, and recommendations were made for taking equipment out of service and/or replacing that posed a potential life safety risk.

Why Mining Companies Choose KE

  • Safety-Driven Culture – MSHA-certified crews with industry-leading in-house training
  • Proven Track Record – Experience across multiple mine types and facilities
  • Comprehensive Services – From electrical construction to automation, power services, and maintenance
  • National Reach – Supporting mining operations across the U.S.

Knobelsdorff is the partner mining companies trust to handle the electrical demands of their toughest projects.

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