I'm a cost controller. My job is to squeeze budgets, negotiate better unit prices, and catch the hidden fees most people don't see coming. So when I say I approve maxon motors for nearly every critical axis in our designs, people assume I've lost my edge.

I haven't. I've been tracking our motion-control spending for six years — about $180,000 a year across roughly four dozen vendors. And the cheapest motor on a quote has cost us more money, more downtime, and more awkward client conversations than the 'expensive' Swiss one ever did.

The price of the motor is the least meaningful number on the datasheet. What matters is what it costs your company when it works, when it fails, and when the customer remembers whose machine broke down.

I'll explain. I'll even show you my math.

The Price Tag Isn't the Price

Back in 2023, I compared two vendors for a batch of 24 gear motors for a labeling machine. Vendor A was maxon. Vendor B was a brand I won't name, but their marketing made our engineering team swoon. Vendor A quoted $48 per motor, all-in: motor, matched controller, encoder, published lifespan. Vendor B quoted $31. Just the motor.

I almost signed that purchase order. I had even drafted the email to finance. Then a junior engineer asked a question that saved us: 'does that include the encoder?' It didn't. Nor did it include the $12 encoder, the $4 cable, or the $340 'programming tool' nobody had mentioned during the demo. Add all that up and Vendor B's all-in price hit $51.70 per unit — higher than maxon, with worse documentation. The demo unit ran beautifully, by the way. The production units didn't. That's the part marketing never shows you.

I found the same pattern when I audited our 2023 spending. Around 90% of our field failures came from the budget-friendly motors that had saved us maybe $3,000 upfront. I don't have hard data on industry-wide failure rates — the discount brands don't publish that, and maxon doesn't either, as far as I know — but based on our own service records, my sense is that the cheap units failed at least four times as often in the first year.

I wish I had tracked every failure by vendor and by hour of runtime more carefully from the start. What I can say anecdotally is that one service call, one replacement part, and one late-night production stop usually cost more than the entire price difference on the BOM. Two service calls, and the 'cheap' motor is the most expensive motor you've ever bought.

Total cost of ownership includes a few things buyers forget:

  • the motor price, plus the matching controller or driver it actually needs
  • setup fees, software licenses, and 'free' tools that turn out not to be free
  • failure and rework costs over the life of the machine
  • the cost of a second redesign when the budget vendor discontinues the model
  • one engineer's afternoon trying to decode a badly translated datasheet

When we switched critical axes to maxon in Q2 2024, our motor budget went up roughly $4,000. Our service costs on those axes went down by a lot more. The spreadsheet doesn't care about brand names. It only cares about totals. The totals said maxon.

A Failed Motor Costs Your Brand, Not Just Your Budget

Here's the part that never shows up on a P&L: when a motor dies inside your customer's machine, they don't blame the motor manufacturer. They blame you.

I watch this play out in the e-bike world, where a motor failure isn't an inconvenience — it's a rider left stranded. When a drive system fails, the discussion boards and social media threads name the bike brand, not the motor maker. That's why I pay attention to products like the maxon AIR S motor for e-MTBs. If you're putting a motor into something a person rides, or into a medical device, or into a robot arm that works alongside human beings, the motor isn't a component. It's a piece of your reputation.

I've watched more than one machine builder lose a renewal over exactly this. The OEM saved $11 on a pump motor. The end customer's line stopped twice in four months. The OEM spent four times the savings on freight and rework — and still lost the contract. The $11 was the most expensive part they ever bought.

Think about the math differently. The difference between a decent motor and a truly reliable one might be $50 per unit. But the difference in how your product feels — the smoothness, the precision, the silence, the years without a failure — that's the difference between a customer who reorders and a customer who posts your logo next to the words 'never again.'

Quality is a marketing expense. Every axis that moves smoothly is a salesperson for your machine. Every whine, every glitch, every unexpected shutdown is a free ad for your competitor.

I subscribe to a couple of industry news feeds, and the servo motor news is full of product launches from brands that vanish after two product cycles. maxon has been building motors since 1961. When I'm quoting a machine that's supposed to run for a decade, that stability matters more than a slightly lower price.

Ask the Right Question

Most buyers focus on the obvious numbers: torque, speed, price. They ask 'what's the discount at quantity?' They ask 'how soon can you ship?'

The question they should ask is: 'who is behind this motor, and will they still be around when I need a spare in seven years?'

That's why the maxon DC motor catalog PDF is worth downloading, and worth the paper if you print it. It publishes everything: motor curves, controller pairings, gearbox options, encoder wiring, tolerances. It reads like an engineering reference, not a sales brochure disguised as one. I keep the 2024/2025 edition on my desk even though our office is all-digital, and my team makes fun of my sticky notes. But it has saved us more than once when a customer asked a question nobody else could answer.

When I talk to younger buyers, they tend to jump straight to price benchmarking. I used to do that too, until the year our 'savings' generated $26,000 in unplanned freight because two vendor models had different lead times and the customer schedule didn't wait for us.

And while I'm at it, let me clear up a confusion I see in our own search logs all the time: people looking for 'how VFD control motor speed' and then applying that thinking to small brushless motors. A variable frequency drive is the right tool for a three-phase induction motor. It's the wrong tool for a brushed DC motor or a brushless servo. Those need a proper servo drive or brushless DC motor driver — and maxon's documentation tells you exactly which controller pairs with which motor, including pinouts and tuning parameters. That kind of honesty makes a procurement person's life easier, because I don't have to reverse-engineer a spec sheet to find the gotchas.

But Isn't maxon Just Expensive?

I hear you. 'Swiss engineering, Swiss prices.' The first time I saw the price of a maxon brushless DC motor driver, I choked. I'm not going to pretend otherwise.

But I've been burned enough to ask a better question: expensive compared to what?

Compared to the unit price of a generic motor? Yes, maxon costs more — usually 20 to 40 percent. Compared to a service call at $200 an hour, a production line down for a day, a spare-parts drawer that doesn't fit the new revision, an angry customer who switches suppliers over one bad batch, and a quality perception problem that takes years to fix? Then it's the cheapest insurance you can buy.

I wrestled with this. Even after we standardized on maxon for critical axes, I kept second-guessing. What if I had been seduced by a nice catalog? I recalculated the totals every quarter, half expecting the data to expose me as a fool. It didn't. Failure costs stayed low. Engineering stopped fighting with inconsistent documentation. And I stopped getting emails that began with 'so, about that motor...'

The upside of switching back to a cheaper vendor would be maybe $8,000 a year. The risk would be a customer's line going down at midnight. I keep asking myself the same question: is saving $8,000 worth potentially losing a $200,000 account? The math says no. That's without counting the soft savings: the engineering time we no longer waste, the meetings we don't need, the customer trust we don't have to rebuild.

To be fair, I'm not saying every component in every machine should be maxon. A cost controller who insists on premium parts for cooling fans and non-critical actuators is as careless as one who buys the cheapest thing on principle. But for the axes that carry a load, that run the core function, that a customer touches or relies on? I'm done being cheap. The data doesn't support it.

So here's my final opinion, backed by six years of invoices and one very well-worn spreadsheet (mental note: back that thing up more often): the most expensive motor you'll ever buy is the one that fails in front of your customer. Price the total cost, not the part. And for the axes that matter, spec the maxon. My budget has been healthier for it. So has my sleep.