Best Scrubbing Robots for Shopping Centre Concourses

Introduction

A shopping centre concourse is not a warehouse floor. It is open, but it is broken up by kiosks, planters, seating, promotional stands and escalator landings, and it often has shoppers on it even when the robot is working early or late. A scrubber that performs well on a long, empty factory route may struggle to clean neatly around a cluster of kiosks or to keep moving safely through passing shoppers.

This ranking compares the KEENON KLEENBOT C55, Tennant X6 ROVR and PUDU BG1 Pro for that specific job. It is deliberately narrower than ROBOT24’s ranking of scrubbers for large facilities: it looks at how each robot handles a mall concourse, with its fixtures and foot traffic, rather than raw throughput across a large open floor.

Each robot is scored out of 10 on five weighted criteria: wet cleaning and recovery, autonomous coverage, access around fixtures, water and charging continuity, and supervision. The ranking reflects documented capability and editorial assessment, not matched-condition testing in a live shopping centre. The methodology appears below.

AT A GLANCE

Rank	Robot	Overall score	Standout specification	Best suited to
1	KEENON KLEENBOT C55	84.0/100	55 cm scrub width; battery swapping and auto fill and drain via workstation	Long trading days where downtime between runs must be minimal
2	Tennant X6 ROVR	82.5/100	650 mm dual-disc path; 95 L tanks; AI route planning	Large concourses with complex layouts to cover
3	PUDU BG1 Pro	82.5/100	One-pass sweep and scrub with extendable edge cleaning	Heavily soiled concourses where edges around fixtures matter

The Robots Behind the Rankings

1. KEENON KLEENBOT C55: Built to keep running

Overall score: 84.0/100

The KEENON KLEENBOT C55 takes first place, 1.5 points clear of the other two. It is the only robot to score 9/10 for both wet cleaning and recovery and for water and charging continuity, and KEENON positions it for large commercial spaces including shopping centres and transport hubs.

KEENON documents a 55 cm scrubbing width and a triple-roller design that sweeps and scrubs in one pass, separating dry and wet waste so that scrubbing uses clean water. It carries a 60-litre clean tank and a 47-litre waste tank, and four stereo cameras plus a top-mounted LiDAR give it all-round awareness.

Its continuity score reflects how it handles water and power. KEENON lists up to 5 hours of runtime with support for battery swapping, a 4-hour charge, and automatic water filling and draining through a workstation. It also resumes from where it stopped after recharging and supports multi-robot collaboration. It scores 8/10 for autonomous coverage, access around fixtures and supervision.

At 860 × 850 × 1,082 mm and 150 kg, it is a substantial machine, so routes between kiosks and seating should be checked for width.

The C55 suits centres with long trading hours where the robot needs to spend as little time as possible off the floor.

2. Tennant X6 ROVR: The coverage specialist

Overall score: 82.5/100

The Tennant X6 ROVR shares second place on points and leads this ranking on autonomous coverage, with 9/10. Tennant launched it in April 2025 for large and complex facilities.

Its navigation combines computer vision with 3D LiDAR, and Tennant’s SelfPath AI plans routes and makes real-time decisions to improve coverage. Routes can be taught and repeated, or the robot can fill an area on its own. Tennant lists a 650 mm dual-disc scrubbing path, 95-litre solution and recovery tanks and an estimated 6,967 m² of coverage per solution tank.

It scores 8/10 for wet cleaning and recovery, access around fixtures, water and charging continuity, and supervision. Tennant lists up to 6 hours of runtime; charging is on board as standard, with the XC1 charging station as an option. Velocity-controlled solution delivery adjusts water and chemical flow to the robot’s speed, and Tennant lists a sound level as low as 69 dBA, which is relevant where shoppers are nearby.

The X6 ROVR suits large concourses with complex layouts where getting full coverage is the priority.

3. PUDU BG1 Pro: One-pass cleaning with edge reach

Overall score: 82.5/100

The PUDU BG1 Pro is level on points with the X6 ROVR. It matches the C55 on wet cleaning and recovery, at 9/10, and scores 8/10 on every other criterion.

PUDU launched the BG1 Series in March 2026. It sweeps at the front and scrubs at the rear in a single pass, with an extendable edge-scrubbing function that reaches walls and fixture edges, and automatic dual-agent dosing. PUDU lists a 550 mm scrubbing width, 708 mm with the side brush, and 75-litre clean and 60-litre waste tanks. PUDU says the series can clean up to 2,000 m² per hour across a full area, or up to 6,000 m² per hour in spot-cleaning mode.

An optional all-in-one station handles refilling, draining, charging and tank self-cleaning. An audio-visual alarm warns people nearby, and a ride-on mode lets staff drive it manually. At 1,195 × 760 × 1,303 mm and about 344 kg, with an 85 cm minimum passage width, it is the largest of the three.

The BG1 Pro suits busy concourses where stubborn soiling and clean edges around fixtures matter most.

The Best Fit Depends on the Floor 

Only 1.5 points separate the three robots. The KEENON KLEENBOT C55 leads on keeping the floor wet-cleaned and the robot in service. The Tennant X6 ROVR is strongest at covering a complex layout, and the PUDU BG1 Pro matches the C55 on wet cleaning while adding edge reach around fixtures.

With margins this close, specification sheets will not settle the choice. What decides it in a shopping centre is how each robot handles the concourse itself. Centres should run all three on the same route: through the main atrium, around a cluster of kiosks and seating, past an escalator landing and along a stretch with real pedestrian traffic. Compare how close each robot cleans to fixtures, how it behaves when shoppers cross its path, how often it stops or needs help, and how much of the route it completes on one tank and one charge.

The practical details matter too: where the workstation or charger can go, whether staff can reach it easily, and whether the robot can be supervised remotely during the hours it runs.

RANKING EXPLAINED

Parameter	What we assess	Weight
Wet cleaning and recovery	Scrubbing performance, water pick-up and how dry the concourse is left for shoppers.	25%
Autonomous coverage	Route planning and how completely the robot covers the concourse without help.	25%
Access around fixtures	Size, turning and how closely the robot cleans around kiosks, seating and planters.	20%
Water and charging continuity	Tank capacity, runtime, charging, battery swapping and automatic refill and drainage.	15%
Supervision	Remote monitoring, alerts, safety signalling and how much staff oversight is needed.	15%

Each criterion is scored out of 10, and the weighted scores combine into an overall score out of 100. Wet cleaning and coverage carry the most weight because a concourse scrubber has to leave the whole floor clean and dry before shoppers arrive.

SCORING DETAIL

Robot	C1: Wet cleaning and recovery	C2: Autonomous coverage	C3: Access around fixtures	C4: Water and charging continuity	C5: Supervision	Overall score
KEENON KLEENBOT C55	9	8	8	9	8	84.0/100
Tennant X6 ROVR	8	9	8	8	8	82.5/100
PUDU BG1 Pro	9	8	8	8	8	82.5/100

These scores are editorial assessments based on ROBOT24.com market-data records. They are not the result of matched-condition independent testing on the same route. Real-world performance will vary with concourse layout, fixtures, foot traffic, floor type, station setup and configuration. Station options, optional equipment and support terms should be confirmed with the manufacturer or supplier before purchase.