Plain talk, with jokes

Why your Roomba makes factory robots look expensive, and why the comparison is wrong

October 1, 2026 · 3 min read

A robot vacuum costs a few hundred dollars. A robot floor scrubber for a warehouse costs a great deal more, and the first question every facilities manager asks is some version of why. The answer is not greed. It is duty cycle, safety rating, weight, water and the person who answers the phone.

The short answer

A robot vacuum cleans a living room for twenty minutes, bumps into the sofa, gets stuck on a sock, and is forgiven, because nobody's job and nobody's safety depended on it. A commercial autonomous scrubber weighs as much as a small motorcycle, carries a hundred liters of water, works a six hour shift around forklifts and the public, maps a 500,000 square foot building, reports what it did, and is backed by someone who will come and fix it. The price gap is the gap between those two sentences. Rosie the robot maid on the Jetsons was cheap too, and she worked for a cartoon.

Duty cycle

Consumer robots are designed for minutes a day. Industrial ones are designed for hours a night, every night, for years. That changes the motors, the batteries, the bearings, the chassis and the software, and it changes the price of every one of them. The airport in this site's casebook put one scrubber on about 200,000 square feet a week and more than five million square feet in its first year, as the maker published it. A living room robot would have died in March.

Weight, water and physics

Scrubbing a hard floor properly means putting pad pressure on it and recovering dirty water behind it. That takes mass and tanks. A machine heavy enough to clean is heavy enough to hurt someone, which brings us to the next item.

Safety around people

A consumer robot that bumps your ankle is funny. A 400 kilogram machine that bumps a passenger in a terminal is a lawsuit, so an industrial robot carries safety-rated sensing, redundant stops, bumpers and speed limits, tested and documented. The engineering is expensive because being wrong is more expensive.

The software is a subscription, and that is fair

Every autonomous scrubber in the matrix runs on a software plan: the maps, the routes, the obstacle handling, the dashboard that shows a facilities director what got cleaned at 3 AM and what got skipped. That plan is a recurring cost, and the honest total price is the machine plus the plan plus service. The concierge says so every time, because it is the line brochures bury. Your vacuum has an app too. Nobody is auditing it.

The person who answers the phone

When the consumer robot dies you buy another one. When the commercial machine stops at 2 AM in a hospital corridor, someone has to come. Service networks, spare parts in the country, training for your people and a warranty that means something are part of what you buy. Disclosure: Steel Collar is an independent dealer for Avidbots in this category and ranks every scrubber in the matrix on fit; the service model differs by maker, and the concierge will tell you who carries it for each.

So is the industrial robot overpriced?

Sometimes, in the sense that a machine running two hours a night in a small building will never earn its keep, and this site has a worked example that says exactly that. But not in the sense the Roomba comparison implies. The right comparison is not the robot vacuum. It is the ride-on scrubber you already own, the driver hours it consumes, and how many more square feet a night you could clean if the driving were free.

Give Joe, the concierge on this site, your square footage and your cleaning hours. He will tell you whether the arithmetic works in your building, and he will not pretend the software plan does not exist.

Related on this site

• Autonomous floor scrubbing at retail scale
• Which floor scrubbing robot fits which building
• I never thought we could afford a floor scrubbing robot. The honest math said: only if it runs more
• Avidbots, a Steel Collar dealer line
• A mobile robot is not an arm on wheels