Industrial Drive Systems for Heavy Industry

Reach Out for a Practical Retrofit or Upgrade Plan Before Your Next Downtime Event

AC and DC drive systems — engineered, retrofitted, and supported for the long haul.

SAF Drives engineers, builds, and modernizes industrial drive systems for heavy-duty operations across North America, matching the right drive path to your process, then integrating, commissioning, and supporting it.

Converting an obsolete DC line to AC, upgrading VFDs, or replacing a legacy platform? The goal is the same: reliable torque, less downtime, and a longer life for critical assets. Tell us what you’re running today, and we’ll map the practical path forward.

Start Planning Your Upgrade

OUR CUSTOMERS

AC and DC drive systems

SAF designs the most complex drive systems in heavy industry, from a single drive to fully coordinated multi-drive arrangements.

Our experience spans:

  • Low horsepower to thousands of HP
  • Multi-pulse, low-harmonic systems
  • Synchronous motors and MG sets
  • Coordinated control for complex multi-drive lines

Explore the drive products we work with:

Not sure which path fits? That’s what our engineers are for.

Consult an Engineer

Retrofit paths

Aging drive systems don’t always require complete replacement. SAF evaluates the existing equipment, obsolescence risk, parts availability, and operational requirements to determine the most appropriate modernization approach.

DC-to-AC Drive Conversion & Retrofit — modernize aging DC drive systems to AC where it reduces obsolescence risk and improves long-term maintainability.

VFD Retrofit & Drive Modernization — replace or upgrade existing VFD systems, including controls integration, system modifications, testing, and commissioning.

Obsolete & Legacy Drive Replacement — a practical migration plan when parts are scarce and platforms are end-of-life.

Industrial facility interior with overhead crane system and steel material handling area for automation and drive system integration

Still running DC drives? Our one-page guide breaks down what changes in a DC → AC upgrade, what to plan for, and how to reduce downtime risk during modernization.

Read the DC → AC upgrade guide

Legacy and VFD options

If you’re maintaining legacy platforms, including Saftronics (not affiliated with SAF Drives) and other older drive lines, SAF can help you plan a retrofit-first migration rather than a rip-and-replace: packaged drive options, bypass packages, control integration, and full commissioning, backed by in-house engineering.

  • CASE STUDY

    Slab Yard Crane DC Drive Retrofit & Controls Modernization

    OVERVIEW

    See how SAF Drives modernized a 50T slab yard crane for a major Canadian steel producer with new controls and regenerative DC drives to improve reliability.

    Read more

Industries we serve

SAF’s drive systems run in the toughest environments in North American industry:

View All Industries

Why heavy-industry teams choose SAF

What sets SAF apart:

Engineered, not assembled

Every system is custom-built for your operation — no shortcuts, no guesswork.

Everything under one roof

Design, fabrication, programming, and testing in-house, including a UL 508A / cUL certified panel shop.

Retrofit specialists

DC-to-AC conversion, VFD upgrades, and legacy replacement are core to what we do, not a sideline.

Proven across heavy industry

Trusted by leaders such as Algoma, Stelco, Evraz, Cascades, and 3M, over 50 years. Go behind the build.

24/7 support

From startup through long-term optimization, backed by 24/7 support.

Frequently Asked Questions

Industrial drive systems control the speed, torque, and position of the motors that run heavy machinery. They include the AC or DC drive, its controls, and the integration that ties it to the wider line. SAF engineers, retrofits, and supports these systems for heavy-duty operations.

It depends on the condition of your equipment, parts availability, and your uptime goals. SAF evaluates whether a retrofit, a targeted modernization, or a full replacement is the better call — and we’ll tell you if a retrofit is the smarter spend.

Yes. DC-to-AC conversion is a core SAF service. Converting an aging DC line can reduce obsolescence risk and improve maintainability, but not every DC system needs to be replaced — we assess each case on its merits.

We help operations dealing with end-of-life drives, scarce parts, and legacy platforms such as Saftronics build a practical migration plan, with retrofit-first thinking that keeps your line running.

From small-horsepower single drives to coordinated multi-drive systems in the thousands of HP, including multi-pulse low-harmonic systems, synchronous motors, and MG sets.

Not always. SAF plans drive upgrades and commissioning around your production schedule to limit downtime. Tell us your window and we’ll scope the work to fit it.

Both. A drive rarely stands alone. SAF integrates the controls, panels, and programming around it — visit our Automation & Integration page for more info.

SAF Drives: Start planning your upgrade

Not sure what to modernize first? We’ll help you identify the highest-risk systems and the most practical retrofit path.

Consult an Engineer