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Independent Technical Reference

Autonomous Floor Scrubber

Autonomous floor scrubber navigation, safety, docking, proof-of-work and buyer verification

This profile separates cleaning hardware from autonomy, site approval, docking and fleet-data claims so buyers can validate the complete operating system.

Included
  • Purpose-built autonomous scrubber dryers
  • Operator-taught or mapped commercial scrubbers with documented autonomous operation
Excluded
  • Domestic robot mops
  • Manual scrubbers without an autonomous mode
  • Dry-only robot vacuums
  • Hazardous-location use without exact approval

First published 2026-08-09 · Last verified 2026-08-09

This is an independent category reference, not safety approval or model-specific purchasing advice. Validate the exact machine, software release, mapped site, supervision plan, regional conformity and service terms.

Official equipment reference
Kärcher KIRA B 50 autonomous scrubber dryer operating in a shopping centre
Official Kärcher application image of KIRA B 50. A real deployment still requires site mapping, risk assessment and an exception-handling process. Official image source
Autonomous Floor Scrubber key facts
FactTechnical referenceScope boundary
System boundaryCleaning machine plus autonomy stack plus approved site processReviewed models only; autonomy does not remove human responsibility.
NavigationMapped or taught routes with model-specific localization and obstacle responseExact software and sensor configuration.
DockingCharging is common; water refill, draining and rinsing are optional and model-specificDo not infer full-service docking from automatic charging.
ProductivityTheoretical, practical and autonomous-route coverage are different metricsNamed values retain each source boundary.

WCB explanatory visual

Autonomous Floor Scrubber working system

An original system map synthesized from reviewed operator manuals. It explains functional flow, not a universal machine architecture.

  1. 01

    Site setup

    Mapping, route teaching and operating zones

    Defines where and how the robot may clean.

    EvidenceOfficial sources describe mapped or taught cleaning plans.

    ScopeApproved site and current software.

    Verified2026-08-09

    Sourcestennant-t380, hako-b75i, lionsbot-r3

  2. 02

    Perception and localization

    LiDAR, cameras, proximity and localization stack

    Locates the machine and detects relevant obstacles.

    EvidenceManufacturers publish model-specific sensor and navigation descriptions.

    ScopeNo universal sensor capability is inferred.

    Verified2026-08-09

    Sourceskarcher-kira, tennant-x4, hako-b75i

  3. 03

    Path execution

    Motion control, speed limits and obstacle response

    Moves through the approved route and handles normal traffic conditions.

    EvidenceOfficial sources describe autonomous route execution and obstacle avoidance.

    ScopeActual response depends on site and software.

    Verified2026-08-09

    Sourcestennant-x4, lionsbot-r3

  4. 04

    Scrub and recovery

    Solution, brush deck, squeegee and vacuum recovery

    Performs the wet cleaning cycle.

    EvidenceProduct pages identify scrub and recovery systems.

    ScopeDeck, tanks and settings are configuration-specific.

    Verified2026-08-09

    Sourcesnilfisk-sc50, karcher-kira, hako-b75i

  5. 05

    Handover and support

    Alerts, reports, charging, docking and exception workflow

    Returns work to staff when intervention or replenishment is required.

    EvidenceManufacturers document alerts, reporting and charging or dock options.

    ScopeConnectivity and service availability vary by market.

    Verified2026-08-09

    Sourceskarcher-kira, tennant-x4, lionsbot-r3

Equipment taxonomy

Main autonomous floor scrubber formats

These formats describe operator relationship and task scale. None is a universal winner.

Kärcher KIRA B 50 autonomous scrubber dryer
Official field reference

Official Kärcher product image showing sensors, scrub deck and recovery hardware on one autonomous platform.

Buyer focusUse the format as a starting point, then compare the operating envelope, utilities, duty cycle, operator workflow, accessory system and the exact configured machine.

Official image source

Teach-and-repeat scrubber

Task scale
Repeatable routes in managed facilities
Operator
Staff teach routes and handle exceptions
Space
Requires stable route geometry and validated boundaries
Limit
A taught route is not a general-purpose autonomy claim.

EvidenceTennant and Nilfisk describe operator-taught autonomous operation.

ScopeNamed machines.

Verified2026-08-09

Sourcestennant-t380, nilfisk-sc50

Map-managed compact robot

Task scale
Public or constrained indoor areas
Operator
Staff create maps, dispatch work and supervise outcomes
Space
Doorways, glass, lifts and congestion require trials
Limit
Compact size does not guarantee access or safety approval.

EvidenceHako, Kärcher and LionsBot position compact autonomous machines for indoor sites.

ScopeReviewed product positioning.

Verified2026-08-09

Sourceshako-b75i, karcher-kira, lionsbot-r3

Dock-enabled system

Task scale
Longer repeated operations with reduced manual replenishment
Operator
Staff maintain dock, consumables and exceptions
Space
Needs utilities, docking clearance and protected access
Limit
Dock functions differ: charging alone is not refill and drain.

EvidenceKärcher documents an optional full-service dock.

ScopeExact dock and machine configuration.

Verified2026-08-09

Sourceskarcher-kira

Specification dictionary

What the performance metrics do—and do not—mean

Autonomous Floor Scrubber performance metric dictionary
MetricPurchasing meaningReporting boundaryComparison caution
Cleaning pathNominal width of the scrub deckInstalled configurationDoes not establish edge cleaning or route accessibility.
Area performanceSupports route and fleet sizingTheoretical, practical and tested values differDo not treat maximum output as achieved autonomous coverage.
Runtime and charge timeConstrains shift coverage and interventionBattery, floor, settings and route dependentMaximum runtime is not a duty-cycle guarantee.
Tank capacitySupports refill and drain planningNominal fresh and recovery capacityTank size does not establish autonomous duration.
Intervention rateMeasures operational resilience in the actual siteMust define event, distance, time and assisted recoveryVendor demonstrations are not normalized site results.
Cleaning path evidence

EvidenceOfficial pages publish working widths.

ScopeNamed models.

Verified2026-08-09

Sourceskarcher-kira, hako-b75i, lionsbot-r3

Area performance evidence

EvidenceSources label performance using different bases.

ScopeRetain source terminology.

Verified2026-08-09

Sourceskarcher-kira, hako-b75i, lionsbot-r3

Runtime and charge time evidence

EvidenceManufacturers publish model-specific runtime or charging data.

ScopeExact battery and charger.

Verified2026-08-09

Sourcestennant-x4, lionsbot-r3

Tank capacity evidence

EvidenceOfficial specifications list tank capacities.

ScopeNamed configurations.

Verified2026-08-09

Sourcesnilfisk-sc50, hako-b75i

Intervention rate evidence

EvidenceOfficial sources document intervention and exception workflows but not one common metric.

ScopeWCB procurement metric for a controlled site trial.

Verified2026-08-09

Sourcesiec63327, tennant-x4

Evidence + WCB interpretation

Application-fit matrix

Official application evidence does not establish automatic suitability. Each row shows what still needs to be tested.

Hako Scrubmaster B75 i operating in a public terminal
Official field reference

Official Hako application image illustrating an open public route; traffic, glass, obstacles and handover rules remain site-specific.

Buyer focusTreat the photographed setting as context only. Validate utilities, surface compatibility, operating space, operator controls, environmental conditions and the planned work process on site.

Official image source

Repeatable open hard-floor routes

EvidenceManufacturers position reviewed robots for retail, transport, warehouse and public-space routes.

ScopeMapped indoor areas within product limits.

Verified2026-08-09

Sourceskarcher-kira, hako-b75i, nilfisk-sc50

WCB assessment

Best fit begins with stable routes and measurable manual exception work.

Basis
Official positioning and navigation architecture.
Limitations
No universal site approval.
Buyer action
Run a representative route trial across full operating hours.

Occupied public areas

EvidenceReviewed models are shown or positioned in public facilities and include obstacle sensing.

ScopeOnly after local risk assessment and site approval.

Verified2026-08-09

Sourceskarcher-kira, hako-b75i, tennant-x4

WCB assessment

Pedestrians, children, glass, temporary displays and emergency routes are decisive.

Basis
Public-area positioning plus autonomous safety scope.
Limitations
Sensor presence is not proof of suitability for every traffic pattern.
Buyer action
Test peak traffic, edge cases, signage and escalation response.

Multi-shift autonomous operation

EvidenceVendors document reporting, charging and optional docking functions.

ScopeExact utilities, service plan and dock configuration.

Verified2026-08-09

Sourceskarcher-kira, tennant-x4, lionsbot-r3

WCB assessment

Shift value depends on replenishment, recovery, exceptions and proof-of-work together.

Basis
Complete support workflow.
Limitations
Unattended operation is not assumed.
Buyer action
Document every planned human touch and response-time owner.

System component map

Component families and compatibility boundaries

Component families are labels only. No component link or cross-model compatibility is claimed.

WCB autonomous floor scrubber verification map
WCB technical diagram

WCB map separating cleaning hardware, perception and navigation, safety controls, and charging or docking interfaces.

Buyer focusBefore substitution or service work, match the current manual, model and serial range, part number, physical interface, approved material or chemistry, and electrical configuration.

Evidence sourcesiec63327, karcher-kira, tennant-x4, hako-b75i

Cleaning deck and recovery path

Scrubs and collects liquid.

Common variants
  • Disc deck
  • Cylindrical deck
  • Model-specific squeegee
Critical checks
  • Working width
  • Consumable IDs
  • Recovery on turns
  • Daily cleaning

EvidenceOfficial product and manual sources identify wet-cleaning hardware.

ScopeExact model and deck.

Verified2026-08-09

Sourcesnilfisk-sc50, karcher-kira, hako-b75i

Perception and navigation stack

Maps, localizes and detects obstacles.

Common variants
  • LiDAR
  • 3D cameras
  • Proximity and contact sensors
Critical checks
  • Glass and low obstacle tests
  • Localization recovery
  • Software version
  • Data handling

EvidenceManufacturers describe different sensor combinations.

ScopeNo cross-model equivalence.

Verified2026-08-09

Sourcestennant-x4, hako-b75i, lionsbot-r3

Safety and operator controls

Provides stops, warnings, access control and supervised recovery.

Common variants
  • Emergency stop
  • Audible and visual warnings
  • Role-based controls
Critical checks
  • Risk assessment
  • Stop distances
  • Restart rules
  • Training

EvidenceIEC and manufacturer sources define safety scope and controls.

ScopeRegional conformity and site approval remain required.

Verified2026-08-09

Sourcesiec63327, karcher-kira

Battery and charging system

Powers traction, cleaning and computing.

Common variants
  • Manual charging
  • Automatic charging dock
  • Opportunity charging
Critical checks
  • Battery chemistry
  • Charger SKU
  • Dock alignment
  • Fire and electrical controls

EvidenceOfficial sources document model-specific charging arrangements.

ScopeExact regional pack.

Verified2026-08-09

Sourcestennant-x4, lionsbot-r3

Fleet data and service layer

Schedules tasks, records status and supports service.

Common variants
  • On-machine reports
  • Cloud portal
  • Mobile alerts
Critical checks
  • Data ownership
  • Connectivity loss
  • Export fields
  • Service SLA

EvidenceVendors describe reporting and fleet-management functions.

ScopeSubscription and regional availability vary.

Verified2026-08-09

Sourcestennant-x4, lionsbot-r3

Verified relationships

Related brands and representative models

Representative, not exhaustive. A link means the official source connects the named brand and model; it does not establish a factory, OEM or component-supplier relationship.

6 verified models
Representative autonomous floor scrubber models
BrandModelSubtypeOfficial specification referenceMarket scopeVerifiedSource
TennantX4 ROVRPurpose-built compact autonomous scrubber
  • 500 mm cleaning path
  • purpose-built robotic platform
Tennant US product page2026-08-09tennant-x4
TennantT380AMRRobotic micro-rider scrubber
  • operator-taught routes
  • autonomous and manual operation
Tennant US product page2026-08-09tennant-t380
NilfiskLiberty SC50Autonomous scrubber dryer
  • Vision-based autonomy
  • 508 mm scrub path on reviewed version
Nilfisk US and UK product pages2026-08-09nilfisk-sc50
KärcherKIRA B 50Autonomous scrubber dryer
  • 550 mm working width
  • optional service docking station
Kärcher Germany product page2026-08-09karcher-kira
HakoScrubmaster B75 iAutonomous scrubber dryer
  • independent navigation
  • optional docking workflow
Hako global product page2026-08-09hako-b75i
LionsBotR3 Scrub ProCompact autonomous scrubber
  • compact mapped navigation
  • automatic charging
LionsBot global product page2026-08-09lionsbot-r3

WCB decision support

Procurement decision matrix

No composite score or brand ranking. Each row identifies a comparison trap and the next verification action.

WCB assessment

Automate a repeatable route

Verify
Achieved coverage, exceptions and recovery quality
Comparison trap
Buying from theoretical productivity alone
Assessment
Measure completed clean area per staffed hour, not robot motion alone.
Basis
End-to-end workflow.
Limitations
No independent performance ranking.
Buyer action
Run timed trials and classify every intervention.
Engineering check
Confirm route, deck, tanks, battery and software version.

EvidenceOfficial metrics use different reporting boundaries.

ScopeRepresentative site trial.

Verified2026-08-09

Sourceskarcher-kira, hako-b75i, lionsbot-r3

WCB assessment

Operate around the public

Verify
Site safety case and traffic behavior
Comparison trap
Treating a certification or sensor list as site approval
Assessment
Approve the whole operating method and exception response.
Basis
Product safety plus site risk.
Limitations
WCB does not issue approval.
Buyer action
Conduct and document a site-specific risk assessment.
Engineering check
Test stops, glass, drops, low obstacles, blocked routes and restart rules.

EvidenceIEC scope and manufacturer controls are product-level inputs.

ScopeActual site and jurisdiction.

Verified2026-08-09

Sourcesiec63327, tennant-x4

WCB assessment

Reduce manual replenishment

Verify
Exact dock functions and utility interfaces
Comparison trap
Equating automatic charging with autonomous refill and drain
Assessment
Value the dock only after mapping every eliminated and retained task.
Basis
Documented function boundary.
Limitations
Installation and consumable work remains.
Buyer action
Obtain utility drawings and a task-responsibility matrix.
Engineering check
Confirm water, drain, power, clearance, backflow and service access.

EvidenceKärcher identifies optional multi-function docking.

ScopeNamed dock only.

Verified2026-08-09

Sourceskarcher-kira

Engineering validation

Checks before parts, configuration or service decisions

This checklist narrows verification work; it is not a compatibility guarantee or repair manual.

01

Software and map control

Autonomous behavior depends on current maps, permissions and releases.

Required actionRecord versions, change control, rollback and map ownership.

EvidenceManufacturers document digital mapping and fleet functions.

ScopeExact deployed system.

Verified2026-08-09

Sourcestennant-x4, lionsbot-r3

02

Safety validation

Moving machinery operates near people and property.

Required actionVerify conformity documents and site risk controls.

EvidenceIEC 63327 addresses commercial automatic floor-treatment machines.

ScopeRegional adoption and intended use.

Verified2026-08-09

Sourcesiec63327

03

Dock and utilities

Docking can introduce water, drainage, power and access interfaces.

Required actionApprove the exact installation drawings and maintenance access.

EvidenceKärcher documents optional dock functions.

ScopeKIRA B 50 dock configuration.

Verified2026-08-09

Sourceskarcher-kira

04

Consumables and service

Brushes, squeegees, filters, batteries and sensors determine uptime.

Required actionObtain exact part numbers, stock plan and response SLA.

EvidenceOfficial product resources identify model-specific support systems.

ScopeExact serial range and market.

Verified2026-08-09

Sourcesnilfisk-sc50, hako-b75i

Standards boundary

Safety and performance references

IEC 63327:2021

JurisdictionInternational

Version2021

ApplicabilitySafety requirements for automatic floor-treatment machines for commercial use within its scope.

EvidenceIEC publishes the scope and relationship to relevant appliance standards.

ScopeConfirm regional adoption and product declaration.

Verified2026-08-09

Sourcesiec63327

IEC 60335-2-72:2021

JurisdictionInternational

Version2021

ApplicabilityParticular safety requirements for commercial floor-treatment machines with or without traction drive.

EvidenceIEC publishes the standard scope.

ScopeAutomatic-machine additions and regional adoption must be checked.

Verified2026-08-09

Sourcesiec60335-72

Technical developments

Selected changes in autonomous floor scrubber systems

  1. Tennant detailed X4 ROVR

    Tennant announced specifications and capabilities for its purpose-built robotic scrubber.

    EvidenceTennant investor news records the announcement.

    ScopeAnnouncement-date configuration.

    Verified2026-08-09

    Sourcestennant-x4-news

  2. IEC 63327 published

    IEC published its commercial automatic floor-treatment machine safety standard.

    EvidenceIEC catalogue records the edition and date.

    ScopeInternational base standard.

    Verified2026-08-09

    Sourcesiec63327

Evidence record

Sources

First published 2026-08-09 · Last verified 2026-08-09 · Last material modification 2026-08-09

  1. standard

    IEC 63327:2021

    IEC

    Open official source

    Accessed 2026-08-09 · Published 2021-10-14

  2. standard

    IEC 60335-2-72:2021

    IEC

    Open official source

    Accessed 2026-08-09 · Published 2021-06-23

  3. manufacturer

    KIRA B 50

    Kärcher

    Open official source

    Accessed 2026-08-09

  4. manufacturer

    X4 ROVR Autonomous Floor Scrubber

    Tennant

    Open official source

    Accessed 2026-08-09

  5. manufacturer

    Tennant Announces X4 ROVR Specifications and Capabilities

    Tennant

    Open official source

    Accessed 2026-08-09 · Published 2024-03-20

  6. manufacturer

    T380AMR Robotic Floor Scrubber

    Tennant

    Open official source

    Accessed 2026-08-09

  7. manufacturer

    Liberty SC50

    Nilfisk

    Open official source

    Accessed 2026-08-09

  8. manufacturer

    Scrubmaster B75 i

    Hako

    Open official source

    Accessed 2026-08-09

  9. manufacturer

    R3 Scrub Pro

    LionsBot

    Open official source

    Accessed 2026-08-09