KLEENBOT C55

KEENON KLEENBOT C55: The Professional Medium-to-Large Area Autonomous Scrubbing Robot

KEENON's ISSA North America Expo press release specifies the C55's three core innovations: "Enhanced Cleanliness: Its triple-roller dry-wet separation design ensures scrubbing with clean water to prevent cross-contamination. Combined with 21,000 Pa powerful suction, the robot leaves floors dry in 30 seconds without any streaks." The 30-second floor drying time directly addresses the primary safety concern associated with wet floor scrubbing in high-traffic commercial facilities: the slip hazard created when floors remain wet after cleaning.KEENON confirmed its global market leadership at the ISSA event: "KEENON Robotics continues to secure the No. 1 global position in the commercial service robot market, holding the No. 1 rank worldwide by shipment share, according to the latest reports from IDC."

Context: The C55 Within KEENON's All-Scenario Cleaning Lineup

How the C55 Completes the KLEENBOT Family

The March 31, 2025 PRNewswire launch announcement explicitly described the C40, C55, and C20 additions as completing a "comprehensive, all-scenario lineup" for the KLEENBOT family, with each model addressing a distinct facility scale and requirement:

C20 (35 cm ultra-slim body): Daily maintenance cleaning for small spaces up to approximately 1,000 square meters, with under-furniture access as the primary differentiator.

C30 (3-in-1 dry cleaning, 61 cm width): Routine floor care for small to medium spaces up to approximately 2,500 square meters per charge, with the 10-hour dust mopping endurance as the primary advantage.

C40 (4-in-1 with wet scrubbing, 65 cm minimum passage): Comprehensive cleaning for small to medium commercial spaces with carpet and mixed-surface handling, triple-brush system for dry-wet separation.

C55 (heavy-duty scrubbing robot, 60L water tank): Professional medium-to-large space coverage for facilities exceeding 3,000 square meters, with the highest water capacity in the lineup enabling extended uninterrupted scrubbing runs.

The C55's position at the top of this hierarchy reflects its design for the commercial scale that the smaller KLEENBOT platforms cannot serve in a single session: airports, hospitals, shopping centers, large hotels, and distribution warehouse facilities where the floor area requiring daily or periodic scrubbing exceeds what any 16-liter tank system can cover without multiple refill stops.

The ISSA North America Expo Debut

The ISSA North America Expo is the flagship trade show for the professional cleaning industry in North America, attended by facility managers, cleaning service contractors, distribution companies, and commercial property operators from across the United States and Canada. The C55's debut at this event on November 11, 2025, represented KEENON's formal introduction of the platform to the professional cleaning purchasing community, demonstrating it alongside the C40, C30, BUTLERBOT W3, DINERBOT T10, and S300 as part of a comprehensive service robot portfolio.

The selection of ISSA North America as the C55's offline US debut venue reflects Keenon's understanding that large-area autonomous scrubbing robots are purchased through professional cleaning industry channels and evaluated by facility managers and cleaning service operations directors rather than through general-purpose technology retail. The ISSA venue ensures the C55 is visible to exactly the professional buyer community that makes commercial floor cleaning equipment decisions.

Physical Design and Characteristics

The 150-Kilogram Industrial-Scale Form Factor

The C55's 150-kilogram weight, confirmed by HIT Equipment International, reflects its industrial-scale water tank system and the robust structural engineering needed to carry 60 liters of water plus the scrubbing, suction, and navigation system components. This weight class places the C55 in the same weight range as conventional rider-operated industrial floor scrubbers, which typically weigh 150 to 250 kilograms.

At 860 by 850 by 1,082 millimeters including the squeegee attachment, the C55's footprint is substantially larger than the C40 (578 × 500 × 690 mm) and requires correspondingly wider aisle clearance for navigation. For facility managers evaluating the C55, verifying that the facility's aisles, doorways, and service corridors can accommodate the 860-millimeter width is an essential pre-deployment step.

The 60-Liter and 47-Liter Tank System

The C55's 60-liter clean water tank and 47-liter wastewater tank are the operational foundation of its large-facility deployment case. To contextualize: a standard 2,000-square-meter floor area scrubbing session with a 16-liter tank requires approximately 4 refill stops (assuming 16 liters covers approximately 400 to 500 square meters of wet scrubbing). The same 2,000-square-meter session with the C55's 60-liter tank requires at most 1 to 2 refills, and for smaller large-area facilities the session can complete without any refill interruption.

For airport terminals and hospital buildings where cleaning sessions cover 3,000 to 10,000 square meters per shift, the difference between a 16-liter and 60-liter tank is the difference between an operator-intensive refill-every-30-minutes workflow and a genuinely low-intervention autonomous scrubbing session.

HIT Equipment International confirms: "Designed for facilities that need heavy-duty autonomous scrubbing with fewer refill interruptions." Their target market list: "Hospitals, shopping centres, airports, and large public venues. High-traffic facilities that need long autonomous cleaning runs. Operations that prioritise high-capacity water and waste handling."

The 11.6-Inch Interactive Screen

The C55 includes an 11.6-inch interactive screen, confirmed in KEENON's March 2025 press release: "its 11.6-inch [screen]..." for the C55 platform. This screen provides an operator interface for task programming, status monitoring, and operational feedback, positioned at an accessible height for operators managing the robot in large facility environments.

Technology and Specifications

Verified Key Specifications

From confirmed sources including HIT Equipment International, KEENON's official press releases (PRNewswire March 31, 2025 and November 11, 2025), and Interclean's product catalog:

Dimensions (L × W × H): 860 × 850 × 1,082 mm (including squeegee)

Weight: 150 kg (with battery)

Cleaning Width: 55 cm

 Clean Water Tank: 60 liters

 Wastewater Tank: 47 liters

 Suction Power: 21,000 Pa

Floor Drying Time: 30 seconds (post-scrubbing)

Charging Time: 4 hours

Cleaning System: Triple-roller dry-wet separation

Navigation: SLAM-based with advanced multi-sensor perception

Target Environment: Indoor spaces over 3,000 m²

Interactive Screen: 11.6 inches 

Applications: Hospitals, shopping centers, airports, large public venues

Industry Debut: ISSA North America Expo, Las Vegas, November 11, 2025

Global Launch: March 31, 2025 (alongside C40 and C20)

Triple-Roller Dry-Wet Separation Technology

KEENON's official press release at ISSA North America describes the C55's core cleaning innovation: "Its triple-roller dry-wet separation design ensures scrubbing with clean water to prevent cross-contamination."

The triple-roller design is the mechanical architecture that enables dry-wet separation in the C55's scrubbing system. In conventional single-roller or disc scrubbing systems, the scrubbing medium can mix clean water from the supply system with the dirty water being recovered, creating a scrubbing fluid that becomes progressively more contaminated across a cleaning session. The triple-roller arrangement separates the clean water application, scrubbing action, and dirty water recovery across distinct functional zones that prevent recycled contamination from re-contaminating the floor surface.

For large healthcare facilities and airports where cross-contamination between floor zones is a hygiene concern (a microorganism picked up in one zone should not be transported by the cleaning robot to another zone), the triple-roller separation system provides a hygiene assurance that simpler single-stage scrubbing systems cannot match.

21,000 Pa Suction for 30-Second Floor Drying

The C55's 21,000 Pa suction power is the mechanism that enables 30-second post-scrub floor drying. After the scrubbing roller applies water to the floor surface and loosens contamination, the suction system draws the contaminated water from the floor into the 47-liter wastewater tank with sufficient force to leave the floor surface essentially dry within 30 seconds of the scrubbing pass.

The 30-second drying time directly addresses the most operationally disruptive aspect of wet floor scrubbing in high-traffic commercial facilities: the mandatory wet floor safety closure period that conventional scrubbing machines require, during which the facility must be partially or fully closed to prevent slip accidents. A floor that returns to dry and safe condition within 30 seconds of the robot's pass requires no wet floor closure period in most circumstances, enabling the C55 to clean during operational hours in facilities that cannot close for cleaning.

Applications and Use Cases

Airports and Transportation Hubs

International airports represent the deployment environment where the C55's large-capacity, long-session characteristics are most commercially valuable. Terminal floor areas of 10,000 to 50,000 square meters require scrubbing across multiple operational hours, and the 60-liter water tank enables extended uninterrupted cleaning runs that reduce the management overhead of the cleaning operation. The 30-second drying time enables cleaning during operating hours without requiring passenger areas to be cordoned off for extended post-scrub drying periods.

The ISSA North America Expo, where the C55 debuted in the United States, has airport and transportation hub facility managers among its primary attendees, confirming the industry positioning that KEENON has established for the C55 in North America.

Hospital and Healthcare Facility Floors

The C55's triple-roller dry-wet separation system, which prevents cross-contamination between floor zones, is directly relevant for hospitals where floor hygiene protocols require that pathogens collected in high-risk areas (operating theaters, isolation wards) are not redistributed to low-risk areas (lobbies, waiting rooms) by the cleaning robot.

The ISSA North America press release identifies "Enhanced Cleanliness" as the C55's first core innovation, specifically describing the triple-roller design as preventing cross-contamination. This hygiene assurance is the primary reason hospital facility managers should evaluate the C55 over single-stage scrubbing alternatives.

Shopping Centers and Large Retail Properties

Large shopping center concourses, food courts, and service corridors require daily wet scrubbing to manage the contamination from high foot traffic, food service, and retail activity. The C55's large water tank enables night-time scrubbing sessions that cover the full concourse area without a cleaning crew stopping to refill the robot, reducing the labor oversight required for overnight automated cleaning.

Large Hotels and Convention Centers

Large hotel properties with extensive public space floor areas, including lobby concourses, ballrooms, restaurant dining rooms, and convention hall spaces, represent a primary hospitality sector deployment for the C55. The combination of large area coverage per session, immediate floor drying for guest safety, and cloud-based scheduling through the KEENON management platform enables hotel facilities teams to schedule comprehensive floor scrubbing sessions during low-occupancy overnight periods.

Advantages and Benefits

60-liter water capacity for uninterrupted large-facility scrubbing: The C55's water tank volume is more than three times the C40's 16-liter capacity, enabling scrubbing sessions that cover 3,000-plus square meters without the frequent refill interruptions that smaller platforms require in large facilities.

30-second floor drying for safe high-traffic deployment: The 21,000 Pa suction leaving floors dry within 30 seconds of the scrubbing pass enables cleaning during operational hours in facilities that cannot close for cleaning, eliminating the wet floor safety closure periods that conventional scrubbing creates.

Triple-roller dry-wet separation preventing cross-contamination: The cleaning architecture ensures that contamination picked up in one facility zone is not redistributed to other zones, meeting the hygiene requirements of healthcare and high-hygiene commercial environments.

Engineered specifically for environments over 3,000 m²: The C55's water capacity, cleaning width, and operational parameters are specifically sized for large-facility deployment, providing a right-sized platform for airports, hospitals, and shopping centers rather than scaling up a small-venue platform.

ISSA North America Expo debut at the professional cleaning industry's flagship event: The debut venue confirms the C55's commercial positioning as a professional cleaning industry product evaluated by facility management professionals and cleaning service operations directors.

Backed by IDC-confirmed #1 global market share holder: KEENON's IDC-confirmed #1 global position in commercial service robot shipment share provides C55 buyers with confidence in the company's production scale, support infrastructure, and long-term product commitment.

Summary

The KEENON KLEENBOT C55 is the professional-grade large-area scrubbing robot that completes KEENON's comprehensive all-scenario cleaning robot lineup, specifically engineered for the facilities and commercial spaces where the C40's 16-liter tank creates operational limitations. Its 60-liter clean water tank and 47-liter wastewater capacity enable extended uninterrupted scrubbing sessions in airports, hospitals, shopping centers, and large hotels. Its triple-roller dry-wet separation design prevents cross-contamination between floor zones. Its 21,000 Pa suction leaves floors dry within 30 seconds, enabling cleaning during operational hours. Introduced globally on March 31, 2025, and debuted in North America at the ISSA North America Expo in November 2025 by IDC's confirmed #1 global commercial service robot manufacturer, the C55 is the most professionally credentialed and large-facility-optimized autonomous scrubbing robot KEENON has brought to international professional cleaning markets.

Frequently Asked Questions (FAQ)

What is the KEENON KLEENBOT C55?

The KEENON KLEENBOT C55 is a professional autonomous floor sweeping and scrubbing robot from KEENON Robotics Co., Ltd., engineered for large indoor commercial spaces exceeding 3,000 square meters. Key specifications: dimensions 860×850×1,082 mm (including squeegee), weight 150 kg, 55 cm cleaning width, 60-liter clean water tank, 47-liter wastewater tank, 21,000 Pa suction, 30-second post-scrub floor drying, triple-roller dry-wet separation design, 11.6-inch interactive screen, and 4-hour charge time. It was introduced globally on March 31, 2025, and debuted in North America at the ISSA North America Expo in Las Vegas on November 11, 2025.

Why does the C55's 60-liter water tank matter for large facilities?

The C55's 60-liter clean water tank is more than three times the capacity of the C40's 16-liter system. In large facility scrubbing, each water refill interruption requires either a human operator to stop and refill the robot or the robot to autonomously return to its workstation for tank replenishment, both of which interrupt the cleaning session and add operational overhead. For facilities with floor areas of 3,000 to 10,000 square meters, a 16-liter tank requires multiple refill stops per session, while the 60-liter tank enables the majority of medium-to-large facilities to complete their scrubbing session with minimal interruption. HIT Equipment International confirms the C55 is "designed for facilities that need heavy-duty autonomous scrubbing with fewer refill interruptions."

How does the C55 achieve floor drying in 30 seconds?

The C55 combines its triple-roller dry-wet separation scrubbing design with 21,000 Pa suction to leave floors dry within 30 seconds of the scrubbing pass. The triple-roller system applies clean water to the floor surface and loosens contamination through the scrubbing action, while the suction system immediately draws the contaminated water from the floor surface into the 47-liter wastewater tank with sufficient force to remove essentially all surface moisture. The resulting 30-second drying time means the floor is safe for foot traffic within seconds of the robot passing, enabling the C55 to clean during operating hours in high-traffic facilities without requiring wet floor closure periods.

What type of facility is the KLEENBOT C55 designed for?

KEENON's official press release confirms the C55 is "engineered for indoor environments over 3,000 m²" with a focus on sweeping and scrubbing in a single system. HIT Equipment International's target market identification includes "Hospitals, shopping centres, airports, and large public venues. High-traffic facilities that need long autonomous cleaning runs." These deployment environments share the common characteristic of large floor areas where the daily cleaning requirement exceeds the session coverage of smaller autonomous cleaning platforms, combined with hygiene or operational standards that require wet scrubbing rather than only dry cleaning.

Specifications

• Cleaning Functions: Scrub, Squeegee, Vacuum
• Dimensions(WxDxH): 860(L) × 850(W) × 1082(H) mm (including squeegee)
• Weight: 150 kg (with battery)
• Maximum Theoretical Cleaning Efficiency: 2376 ㎡/h
• Scrubbing Width: 550 mm (excluding side brush)
• Maximum Runtime: 5 hours (supports battery swapping)
• Charging Time: 4 hours
• Water Tanks: Clean Water Tank 60 L / Waste Water Tank 47 L
• Dust Box: Front Dustbin: 2 L / Rear Dustbin: 0.7 L