N40 ENGINEERING

ENGINEERED FOR EXTREMES

Our Services

  • Thorough field and bench-level review of mobile equipment controls. Identify wiring and documentation issues before they cause field failures.

  • Update or create accurate, field-friendly schematics and wiring diagrams. Reduce troubleshooting time and rework on your next build or rebuild.

  • On-call support for diagnosing persistent electrical/control system failures. Get your truck or system back online with actionable fixes.

  • Support for control box replacements, component swaps, or wiring redesigns—especially for aging or undocumented mobile units.

  • Let’s solve the problems your in-house team doesn’t have time to tackle. Flexible support packages available for field contractors and fab shops.

About Us

N40 Engineering was founded to close the gap between engineering design and in the field reliability.
With nearly a decade of experience supporting mobile equipment in the mining and industrial sectors, we specialize in control system audits, drawing cleanup, and technical support that actually works where it counts—in the field.

Whether you're building new equipment, rebuilding legacy assets, or just tired of chasing electrical gremlins, N40 Engineering is here to make your systems field-ready.

Founder Rich Didier led electrical and controls engineering improvements for one of the largest bulk explosives fleets in North America. From incremental upgrades to ground-up designs, his systems are relied on daily in some of the toughest operating environments in the world.

He has supported feasibility studies for both greenfield and brownfield refining facilities and is known as the go-to problem solver when no one else can find the answer.

We bring a practical, hands-on approach to control systems engineering—focused on uptime, safety, and long-term maintainability.

Let’s Work Together

Whether you’re chasing recurring reliability issues, need a controls audit, or want to clean up documentation before your next build, I can help.

I offer straight answers, practical solutions, and fast turnaround for industrial teams who need their equipment to work the first time.

CONTACT US