If you're still picking motors by unit price, you're probably overspending

After auditing $180,000 in motor procurement spending over six years, here's my bottom line: the cheapest quote almost never saved us money. The maxon motor that initially cost 40% more than the alternatives ended up costing us less over three years — counting downtime, replacement labor, and missed deadlines. That's not a marketing pitch. It's a spreadsheet reality.

How I learned this the hard way

I'm a procurement manager at a mid-sized automation integrator. We buy maybe 200–400 motors a year — servo motors, stepper motors, brushless DCs, gear motors, and the occasional linear actuator. In Q2 2024, we switched vendors on a batch of programmable linear actuator controllers. The new vendor's quote was 22% lower than our incumbent. Seemed like a no-brainer.

Six weeks later, three controllers failed in the field. The cost to replace them — including technician travel, re-wiring, and the customer's downtime compensation — totaled $4,200. The initial savings were $800. So we actually lost $3,400 on that decision.

That's when I built our first TCO spreadsheet. Now I require every motor purchase over $500 to go through a total cost analysis. And honestly, maxon motors come out ahead in about 70% of the comparisons we run.

The real cost of a 'cheap' motor

Let's break down what's hidden inside a low quote:

  • Failure rate risk. A budget brushless DC motor might have a MTBF of 10,000 hours vs. a maxon brushless DC motor's 20,000+. When a motor fails mid-production, the unplanned downtime costs more than the motor itself.
  • Control system compatibility. Many low-cost motors require additional adapters or custom tuning — hours of engineering time that never appear on the invoice.
  • Ball bearing quality. This is where corners get cut. I once watched a teardown video on how ball bearings are made for cheap motors: loose tolerances, inconsistent lubrication, and no post-assembly testing. A maxon motor uses precision-ground, sealed bearings that last 3–5x longer. You can't see that in a spec sheet unless you know to ask.
  • Documentation and support. We've all had that moment where a motor manual is missing a critical wiring diagram. maxon's datasheets — like the maxon motor datasheet PDFs — are comprehensive. That alone saves hours per project.

Then there's the time cost. Our engineers spend way less time integrating a maxon motor control system than they do with off-brand alternatives. The software tools are better, the parameters are documented, and the field support actually picks up the phone.

What about the maxon price?

Yeah, it's higher upfront. A typical maxon servo motor with encoder might run $250–$400, while a generic equivalent is $150–$200. But when I add up setup time (2 hours vs. 6 hours), expected failure rate (1% vs. 8% in three years), and reorder convenience (stock availability at distributors), the TCO usually favors maxon by 15–30% over a 3-year period.

One surprising finding: even the century ac motor — which is a well-known industrial AC motor line — came out more expensive in total cost when we needed precise speed control and frequent start-stop cycles. The maxon brushless DC motor's built-in controller and smooth torque eliminated the need for a separate VFD, saving $200–400 per axis.

When cheap does work

I'm not saying maxon is always the right answer. If your application is a one-off prototype, or the motor runs continuously in a benign environment with zero downtime penalty, a lower-cost option might be fine. Or if you have a dedicated engineering team that can tune and babysit the control loop. For those cases, sure, buy the budget motor. I've done it.

But for production equipment, customer-facing applications, or any scenario where a failure costs more than the motor's price, calculate TCO first. The spreadsheet doesn't lie.

A quick TCO formula I use

Here's the simplified version I share with our team:

Total Motor Cost = Unit Price + (Expected failures × Replacement cost) + (Integration hours × $100/hr) + (Spare parts holding cost) – (Residual value if any)

Plug in your numbers. You'll often find that the maxon motor — with its Swiss-made reliability, detailed maxon motor control documentation, and robust ball bearing construction — ends up being the cheaper choice over the motor's lifetime.

I should add that we also use a programmable linear actuator controller for some precision positioning tasks. We tried a no-name controller once. It worked for three weeks, then the firmware glitched and sent a ramp to full speed. Fortunately nobody was hurt, but the actuator arm bent. That rework cost $1,800. Now we spec maxon linear actuators with their integrated controller. No issues since.

So that's my honest take: unit price is the surface. TCO is the real ocean. Swim accordingly.