An airport is the hardest cleaning environment there is, for one reason: it never closes. Passenger flow dips between the last arrival and the first departure, but the building does not empty, and on some days it does not dip at all. A airport floor cleaning robot does not create a cleaning window out of nothing — it makes the windows you do get count, and it takes the long, repetitive runs away from people who have other work to do.
There is also a second job on every airport estate that tends to be handled by a different department entirely: the outdoor landside and airside surfaces. Those need a different machine. This page covers both sides and how to decide which one your project is actually about.
Two estates, two kinds of floor
The first planning decision is not the machine, it is the surface. An airport typically contains two completely different cleaning regimes:
| Terminal interiors | Outdoor estate | |
|---|---|---|
| What it is | Departure halls, piers, security lanes, baggage reclaim, retail and transit corridors | Service roads, aprons and stand areas, car parks, perimeter and cargo yards |
| Soil type | Footborne dirt, spillages, food and beverage, high-traffic polishing | Road grit, sand, leaf litter, rubber and dust |
| Constraint | Never empty; everything must be walkable immediately | Weather exposure, traffic management, long distances, safety rules |
| Machine class | Large wet scrubbers and waterless sweep-vacuum units | Outdoor sweepers built for temperature and gradient |
Treating these as one project is the most common structural mistake: a scrubbing machine specified for a polished terminal floor has no business on a grit-covered service road, and an outdoor sweeper is not a substitute for wet cleaning a departures hall.
Large-span terminals: what an airport floor cleaning robot does well
Terminal cleaning is a throughput problem. The distances are long, the surfaces are wide and the windows are short, so the machine has to cover ground quickly and then manage its own energy rather than waiting for someone to wheel it to a socket:
- Large wet scrubbers. The SC80 covers this regime with an 800 mm washing width and a 1,024 mm squeegee, a rated 4,000 m²/h, and 140 L clean / 170 L recovery tanks — the tank size matters because the difference between a two-hour run and a five-hour run is how often somebody has to dump water. It also runs unattended cycles with automatic return-to-charge and status reporting, which is what lets the cleaning plan start before the last flight boards.
- Waterless units for the dusty, dry end. Retail and gate areas that must not be left wet, or areas without a convenient water point, fit a sweep-vacuum-mop: the SW80A works at an 850 mm cleaning width of 1,600 m²/h, carries a dust bag for the fine fraction, handles a 12% climb for ramps and transitions, and maps up to 40,000 m² in one survey — the scale that matters in a building measured in piers rather than rooms.
- Wash-and-dry where the floor must stay open. In retail frontages, walkways and service corridors the Scrubber 50 class washes and dries in a single pass so the strip behind the machine is usable immediately — the property that makes cleaning possible in a live building rather than only in a closed one.
The SW GT targets the same throughput requirement from a different angle: dual 46 L tanks, up to 5 hours of scrubbing per charge, 33 kg of downward pressure, and a 5-in-1 station that supports 24-hour unattended cycles. Core parts are replaceable in under 10 minutes and consumables in under 10 seconds — the numbers that decide whether a terminal can keep a machine in service between flight banks.
Outdoor sweeping: the other half of an airport
The outdoor estates — cargo areas, service roads, car parks, stand approaches — are cleaned on a separate schedule, usually at night, usually with ride-on sweepers and a team. This is the job our outdoor platform was built for: the S100-N is an outdoor sweeping robot with a 1,000 mm sweeping width and a 3,000 m²/h rated capacity, 60 L tanks, a working range of roughly six hours or 30–40 km on a charge, and a 4–4.5 hour recharge. It operates from −15 °C to 40 °C and manages gradients up to 10%, and its 1,700 mm minimum passage defines which service roads and yard entries it can actually work.
Those numbers are the reason it belongs outside: temperature range, gradient and passage width are the three constraints that decide whether a sweeper can survive a winter site. On the apron side, coordinate route planning with whoever controls airside movement — a sweeping route is also a traffic plan.
One more distinction is worth making before the machine list: an airport estate almost always includes a logistics side as well — cargo sheds, ground-handling stores and bonded warehouses. Those spaces behave much more like a distribution centre than like a terminal: wide open floors, forklift traffic, grit carried in from outside, and no passengers to work around. They are usually the easiest part of an airport to automate first, precisely because they are the one part of the estate with a genuine closing time.
Where the outdoor estate is a plaza, a park-and-ride or a wide apron rather than a road network, a larger autonomous platform covers ground the smaller sweeper cannot. The Bees sweeps a 1.43 m path at up to 7,150 m²/h, carries a 70 L waste bin and a 60 L water tank, runs four hours continuously at ≤65 dB(A), and navigates on laser SLAM plus RTK with centimetre-level positioning across 100 m of LiDAR and camera detection. A 1.2 m minimum turning radius and 30% gradeability keep it usable in car parks and on approach roads, and a 10-minute water refill plus 3.2 kW wireless charging put the turnaround between shifts in minutes rather than hours.
Working around passengers
A terminal is never empty and never orderly. The relevant question is not whether the machine detects people, but what it does about them:
- Slow, route around, announce. In a departures hall, stopping and waiting means the machine never finishes a route during the day. Machines that slow down, pick a way around and signal their approach can work the live floor.
- Wet-floor discipline. Where cleaning happens in passenger areas, wash-and-dry and immediately walkable surfaces are not a convenience feature; they are the condition for being allowed onto the floor at all.
- Glazed and feature-poor spaces. Terminal halls are exactly the environment where laser and visual navigation have least to lock onto — long sightlines, glass walls, few fixed features. The conventions for supporting navigation with fixed references are covered in the floor marking guide, and floor markers are the low-cost answer where a hall is genuinely barren.
Airside and landside work also brings its own visible requirements: warning signage and decal sets for the machine’s working area, and a documented route that traffic management has agreed to.
Evidence, coordination and the compliance question
Airport facilities teams rarely buy a machine on a single trial night. What they audit is whether the coverage plan is repeatable and reportable: which zones were done, when, and what the machine’s status history shows. Task records and status reporting therefore matter as much as cleaning quality, because they are what turns a pilot into a permanent deployment — and they are the same reason the maintenance cadence has to be evidenced rather than assumed. The scheduled inspection regime is in the maintenance guide.
Expect to coordinate with several owners inside the same organisation — terminal operations, airside safety, cleaning contractors and security — and to need a named owner for routes. Where the airport also runs warehouse-scale logistics buildings, the logic for large-span floors is the same one described in the warehouse and logistics guide.
How to start
Send us the split first: how much of the job is terminal interior, how much is outdoor estate, the longest single run on each side, and the hours during which the machine is allowed to work in passenger areas. From those four answers we will suggest a machine for each side, the docking positions and the route plan to put in front of the operations and safety teams. Send the four answers here, or compare the classes in the machine overview and the industry guide.
- The building never closesThere is no empty night to plan around, so the plan has to work inside a live building.
- Two estates, one budget lineTerminal interiors and the outdoor estate need different machines but are often specified as a single project.
- Long spans, few fixed featuresDeparture halls and piers give navigation very little to lock onto.
- Every route needs several owners to agreeTerminal operations, airside safety, security and the cleaning contractor all have a say.
- Evidence is audited, not assumedAirports ask for records of what was done and when, not for assurances.
- The windows you get are fully usedShort and unpredictable gaps between flights still produce a finished route.
- Each side gets the right machineInteriors and outdoor surfaces are sized separately instead of one class being stretched across both.
- Unattended cycles through the quiet hoursReturn-to-charge and status reporting let work continue without an operator on the floor.
- Reporting that answers the auditZone-level task history responds to the compliance question directly.
- A route traffic management has already agreedRoute planning and traffic planning are done as one exercise.