Scrubber, sweeper, or combo? Answer 3 questions and you'll know.

By Cleaning Robot Co.July 8, 2026

Don't compare robots. Answer three questions about your floor, and the right category picks itself — scrubber, sweeper, vacuum, or combo.

Most people start by comparing two robots. Wrong place to start. Start with your floor, and the category picks itself before you ever open a spec sheet.

Three questions. Answer them in order and stop as soon as one fits.

Question 1: Is your floor wet-cleaned or dry-cleaned?

Wet — tile, sealed concrete, vinyl, stone, epoxy that needs water and detergent to actually come clean → go to Question 2.

Dry — carpet, or a floor where the job is dust and litter, not grime → skip to Question 3.

Question 2: Is the floor one surface, or several?

One hard surface throughout (a warehouse slab, a factory floor, a single-type retail floor) → you need a scrubber. A robotic scrubber lays down water and detergent, scrubs under down-pressure with a brush, then vacuums the dirty water back up through a squeegee — the floor is clean and dry behind it, no wet-floor signs, no slip risk.

Fits: warehouses, manufacturing floors, single-surface retail.
The unit we deploy for a straight scrubbing job: Gausium Scrubber 50 (mid-size, 20" scrub width, up to ~19,375 ft²/h) for offices, hospitals, and hotels — or Gausium Scrubber 75 (large-area, 20+ sensors) for warehouses, casinos, malls, and airports.

Several surfaces in one building (tile lobby, carpet hallway, stone atrium) → skip to the combo answer below.

Question 3: Is the dry floor huge and open, or small and mixed?

Huge and open (warehouse, distribution center, parking structure, 40,000+ m² overnight) → you need a sweeper. A sweeper mechanically collects dry dust, debris, and litter into a hopper — no water, built for volume over a big flat area.

The unit we deploy: Pudu MT1 — AI-powered debris detection, results rivaling a ride-on sweeper, built for large dry floors only. Not offices, not retail.

Small and mixed — several floor types under one roof, or a floor that runs carpet AND tile AND stone → you need a combo unit. One chassis that sweeps, scrubs, vacuums, and dust-mops, switching modes (or running several at once) across a building that doesn't have one uniform surface.

The unit we deploy: Pudu CC1 — 4-in-1 combo, ~5 hours autonomy scrubbing, self-docks, refills, and drains on its own. Fits malls, corporate campuses, offices, retail, and mixed-floor healthcare.
For a mixed floor that also needs sanitation-grade scrub pressure — grocery, gyms, restaurants — the Pudu SH1 scrubber/washer is the better fit: 350 rpm brush, 20 kPa suction, cuts cleaning time roughly 70% versus manual.

The three questions, one chart

| You answered | Category | Robot we deploy | | --- | --- | --- | | Wet + one surface | Scrubber | Gausium Scrubber 50 / 75 | | Dry + huge and open | Sweeper | Pudu MT1 | | Wet or dry + several surfaces | Combo | Pudu CC1 or Pudu SH1 |

If you answered "several surfaces" at any point, stop — you're a combo site, full stop. Mixed floors are the most common building in the country and the reason the industry keeps building more combo units every year: one machine that follows you from tile to carpet beats three single-purpose robots parked in a closet.

Where people get this wrong

The mistake isn't picking the wrong brand. It's skipping the questions and picking a robot because it's the one with the best video. A sweeper on a carpeted office does nothing. A scrubber on a warehouse with three surface types leaves two of them dirty. Answer the three questions first, and the model choice takes five minutes.

How Cleaning Robot Co. gets the category right

We walk your floor before we quote a robot — one visit, real measurements, not a guess off a floor plan:

We answer the three questions for you. A site assessment confirms wet/dry, one surface or several, huge-and-open or small-and-mixed — so the category is never a guess.
We deploy the model that fits, not the one with the biggest marketing budget.
We finance it as a purchase, a lease, or a monthly rental, so getting the category right doesn't require a big upfront bet. See financing.
We service it nationwide — parts and repair across all 50 states, backed by 1,700+ service engineers in the US.

Get a quote and we'll tell you the category before we tell you the price.

Common questions

Can one robot do both scrubbing and sweeping? Yes — that's a combo unit. The Pudu CC1 and Pudu SH1 both scrub and sweep in one chassis, built for buildings with more than one floor type. A dedicated scrubber or sweeper still wins on a single huge uniform surface, because it's built to move faster over that one job.

Do I need a different robot for carpet than for tile? Not necessarily. A vacuum handles carpet and hard floor for dust; a combo unit adds scrubbing on top for the hard-floor sections. If your building mixes carpet and hard floor, a combo unit is almost always the answer.

What if my floor is mostly one type but has one small different area? Still a combo question. A scrubber can't touch the carpet section at all, so a building that's 90% warehouse slab and 10% carpeted office still needs either a combo robot or two separate machines — worth walking through with us before you commit either way.

How do I know if my dry floor counts as "huge and open"? Rule of thumb: if a ride-on sweeper would make sense there today, it's sweeper territory. If people are walking through it all day, it's a vacuum or combo job instead.