L4
CenoBots
The compact scrubber-dryer that cleans to within 3 cm of the wall. Smart Flow water dosing keeps consumption low without compromising results.
The CenoBots L4's signature capability is edge cleaning: it scrubs to within 3 centimetres of the wall — the strip where other robots stop and manual rework begins. The compact build makes it a specialist for tight environments: it passes through 81 cm gaps, so narrow aisles, shelving areas, and complex layouts are no problem.
At up to 1,944 m² per hour (theoretical), it combines compact manoeuvrability with strong throughput — ideal for mid-sized supermarkets, retail stores, and office buildings. Smart Flow dosing adjusts the solution flow to the cleaning speed, cutting unnecessary water and detergent consumption.
The 32-beam 3D LiDAR maps precisely and keeps maps updated automatically, the optional 24/7 workstation handles charging, fresh-water refill, wastewater draining, and detergent refill on its own, and the squeegee swaps in 30 seconds without tools.
Highlights
Edge Cleaning < 3 cm
Scrubs to within 3 centimetres of walls — where manual rework usually starts.
Compact Build
Slim design for narrow aisles — cleans edges to within a few centimetres of the wall.
Smart Flow
Solution flow adapts to cleaning speed — less unnecessary water and detergent.
LiDAR Navigation
Precise real-time mapping and navigation.
Long Runtime
Up to 4.5 hours of cleaning per charge.
Easy Maintenance
Tool-free squeegee swap for quick maintenance.
In action
Clean to the Edge
The CenoBots L4 scrubs to within 3 cm of walls and fits through 81 cm passages — built for tight, complex layouts.
- Retail stores
- Small supermarkets
- Office buildings
- Schools
- Restaurants
Why the L4?
The L4 is the right choice where the edges matter.
In most buildings, the last 20–30 centimetres along walls, shelves, and counters are exactly what robots leave behind — and what staff then re-do by hand. The L4 closes that gap: under 3 cm to the wall, officially its headline feature. Combined with the compact footprint and 81 cm passage width, it cleans layouts that larger robots simply cannot enter.
Smart Flow dosing means it uses water where the cleaning happens — at the brush, matched to the pace — instead of flooding the floor, which reduces water and detergent consumption and keeps drying times short. And with the 24/7 workstation, tank logistics run without staff involvement. With our full-service model, you benefit from all of it without in-house expertise — we handle maintenance and optimal configuration.
Technical reference
Cleaning Performance
Tank & Battery
Navigation
Features
What do the numbers mean?
What do the L4's numbers mean in practice? The 1,944 m²/h is the theoretical maximum (450 mm working width × 1.2 m/s); in real layouts with obstacles and turns, plan for meaningfully less — a 2,500 m² supermarket is a comfortable single-night job. The under-3-cm edge distance means: the strip along walls and shelf bases that normally needs manual mopping shrinks to almost nothing.
The 38-litre fresh water tank paired with Smart Flow dosing keeps refill stops rare, and with the 24/7 workstation, refilling and draining happen automatically. The up-to-4.5-hour battery life covers a complete run without charging interruption for most applications, and recharging takes under 3 hours.
FAQ
Frequently asked questions about the L4
Through Smart Flow: the L4 adjusts the solution flow to its cleaning speed, so water and detergent are applied exactly where and as fast as the brushes work — instead of flooding the floor and extracting the excess. That cuts unnecessary consumption, keeps the floor drying quickly, and stretches every tank fill. The manufacturer publishes no savings percentage, and we deliberately don't invent one — what you will notice in practice is fewer refill stops and a floor that is walkable almost immediately.
The L4 is optimized for areas between 500 and 4,000 m². Its strength lies in tight environments with narrow aisles — supermarkets, retail, office buildings. The compact build enables navigation through passages as narrow as 81 cm. For very large, open areas like warehouses, we recommend the MT1 with higher capacity. The L4 is the perfect choice when manoeuvrability matters more than maximum area throughput.
No. In a scrubber-dryer, the water's job is to loosen dirt; the actual cleaning is done mechanically by the brushes, and the squeegee picks the dirty water up immediately. With dosing matched to the cleaning pace, dirt is loosened and removed in one pass — without puddles and without long drying times. The visible difference is mostly at the edges: because the L4 scrubs to within 3 cm of the wall, less dirt survives in the zone manual cleaning usually misses.
Two mechanisms cover it: Smart Flow automatically adapts the solution flow to the cleaning speed, so heavier passes get more water without manual intervention. And for individual stains there is a dedicated spot-cleaning mode with detection of stubborn soiling. For zones with structurally different requirements — such as entrance areas in winter — we configure the cleaning plan accordingly during setup.
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From the knowledge section
Deploy the L4 in your space