The Keenon KLEENBOT C55 is a professional-grade autonomous floor scrubbing robot engineered for medium-to-large commercial facilities where floor area exceeds the capacity of smaller cleaning platforms. At the top of KEENON's all-scenario KLEENBOT lineup, the C55 carries a 60-liter clean water tank and a 47-liter dirty water tank — the highest water capacity in the family — enabling extended uninterrupted scrubbing runs across airports, hospitals, shopping centers, large hotels, and distribution warehouses where total floor area regularly exceeds 3,000 square meters. Its triple-roller dry-wet separation system scrubs exclusively with clean water to prevent cross-contamination between passes, and 21,000 Pa of suction power leaves floors dry within 30 seconds, eliminating the slip hazard that wet scrubbing creates in high-traffic environments. Weighing 150 kg and measuring 860 × 850 × 1,082 mm, the C55 occupies the same weight class as conventional ride-on industrial floor scrubbers while operating fully autonomously.

KEENON debuted the C55 at the ISSA North America Expo in November 2025 alongside its broader commercial service robot portfolio, positioning it directly for facility managers and professional cleaning contractors evaluating autonomous scrubbing for large-scale operations. The robot completes KEENON's commercial cleaning hierarchy — from the 35 cm ultra-slim C20 for small spaces through the C30 and C40 for medium areas — by addressing the heavy-duty scrubbing segment where tank capacity and suction power, not just navigation, determine whether a robot can replace a conventional machine in a single uninterrupted session.