The hardest cleaning shift in a warehouse to staff is the one nobody sees. It starts after the last outbound truck, it happens in an empty building, and it is the first shift cut when headcount is tight. A warehouse floor cleaning robot solves exactly one problem: the floor gets cleaned every night, whether or not you can fill that shift.
The night shift is the problem — not the cleaning
Most warehouses do not struggle to decide that the floor should be clean. They struggle to keep someone available to do it. Three things make the night shift uniquely difficult to sustain:
- It competes with picking, not with cleaning. The labour pool that can work nights is the same pool you need on the dock and in the aisles. Cleaning loses that competition every time volume rises.
- The result varies with who is on shift. Two people sweeping the same aisles produce two different standards, and neither is documented afterwards.
- It stops entirely when someone is sick, on leave, or on holiday. There is no partial version of a cleaning shift — either the floor was done or it was not.
An autonomous scrubber removes the staffing question. It is scheduled once, and the schedule holds.
Which robot carries a warehouse night shift
Three models cover almost every warehouse requirement. The difference between them is how much floor each pass covers, and whether you need wet cleaning or dry dust control. All specifications below are manufacturer figures.
| Robot | Cleaning width | Rated efficiency | Runtime per charge | Tanks | Best for |
|---|---|---|---|---|---|
| SC80 | 1160 mm sweeping 800 mm scrubbing | 4,000 m²/h | 4–6 h (36 V / 200 Ah) | 140 L clean 170 L waste | Large plates that run long hours. The tank and battery size are what allow an unattended overnight cycle. |
| SW80A | 850 mm, waterless | 1,600 m²/h | 8 h hard floor 12 h silent mode | 3.5 L trash 5 L dust bag | Sites that want no water and no plumbing. Docks to a standard charging post — no water station to install. |
| Scrubber 50 | 460 mm — 780 mm with side brush | 1,987 m²/h theoretical 500–1,300 m²/h practical | 3 h scrubbing 8 h dust mopping | 30 L clean 24 L waste | Hard floors that need wet cleaning in tighter aisles. Washes and dries in one pass, so the floor behind it is walkable immediately. |
Two practical notes that the table does not show. First, the SW80A is a waterless machine — it scrubs, sweeps and vacuums with no clean-water tank and no wastewater to dispose of, which is why it needs nothing more than an ordinary charging post. Second, the Scrubber 50’s rated 1,987 m²/h is a theoretical figure; the manufacturer’s own practical range is 500–1,300 m²/h once turns, traffic and obstacles are accounted for. We size every project on the practical number, not the headline one.
What an unattended night actually looks like
This is the part buyers usually want to see before they believe it. A typical overnight cycle runs like this:
- 22:30 — start. The robot wakes on schedule and leaves its dock. No operator is present and no one has to press anything.
- 22:30–01:00 — main plate. It runs the mapped route through the open storage areas, avoiding pallets and any late-running forklift in real time rather than waiting for the aisle to clear.
- 01:00 — top up. When the battery reaches its threshold, the robot returns to the dock by itself. With a 140 L / 170 L tank pair on the SC80, and an optional workstation, it can also refill and drain automatically before continuing.
- 01:00–04:30 — resume. It picks up the route where it stopped rather than starting again. That distinction matters: a robot that restarts from the beginning wastes the first half of the shift every night.
- 04:30–05:30 — constrained zones and finish. Narrow aisles and the areas the wide machines cannot enter are covered, then the robot returns to the dock.
- 05:30 — report. Task status is visible remotely, so there is a record of which zones were cleaned and which were skipped. That is a paper trail a manual night shift rarely produces.
Nothing in that sequence requires a person. The cleaning window is set between the last outbound and the first inbound, and it holds every night.
How many robots does a warehouse need?
We would rather model it than guess. Three numbers are usually enough:
- Cleanable floor area — total square metres, and how much of it is reachable in one continuous route.
- Narrowest aisle the robot must pass — this decides whether a wide-area machine can enter at all, or whether a compact unit has to take those zones.
- The window available — how many hours the aisles are genuinely clear, and whether that is nightly or only at weekends.
As a rough field estimate, plan on 40–60% of a robot’s rated efficiency in a working warehouse with racking, turns and moving equipment. A 30,000 m² plate with a six-hour clear window therefore usually means two wide-area machines plus a compact unit for the constrained aisles, rather than one machine stretched across the whole building. Tell us your three numbers and we will come back with a configuration and a coverage estimate for your building.
Frequently asked questions
Does a warehouse floor cleaning robot need an operator at night?
No. The route is mapped once during commissioning, the schedule is set, and the robot starts, cleans, recharges and docks on its own. Site staff are needed for routine checks — brush, water and filter — not for running the shift.
How much floor can one robot clean overnight?
It depends on the machine and the building. Rated efficiency ranges from 1,600 m²/h (SW80A) to 4,000 m²/h (SC80), and practical throughput in a live warehouse typically lands at 40–60% of the rated figure. That is why we ask for the clear window rather than quoting a single number.
Will it get in the way of forklifts during the night?
It navigates around people and moving equipment rather than requiring a cleared aisle. Most sites still run the main cycle after the last truck leaves, because that is when the largest areas are accessible and the route is fastest — but the machine does not depend on an empty building to operate safely.
Do we need to install beacons or change the flooring?
No fixed infrastructure is required. There is no magnetic tape, no floor markers and no beacons. On the waterless SW80A there is not even a water supply or drain to connect — an ordinary charging post is enough.
Request a layout assessment
Send us your floor area, the narrowest aisle width and the window you have available. We will tell you which configuration fits, what coverage to expect, and what it would take to move the night shift off your staffing roster entirely.
Contact us for a quote, or see the full cleaning robot range and the floor care solutions overview.