Sunmax RT50 22" Battery-Powered Walk-Behind Floor Scrubber with 14.5-Gal Recovery Tank The SUNMAX RT50 is a 22" battery-powered walk-behind floor scrubber built for commercial and industrial maintenance in warehouses, hospitals, schools, supermarkets, shops, and gyms. It is compatible with many sealed hard-floor surfaces, including concrete, tile, epoxy, vinyl, terrazzo, and sealed stone, scrubbing and recovering water in one pass. The unit features a 550W brush motor with a 200 RPM brush speed, a U-shaped squeegee for water recovery, a one-touch control panel, and easy-drain tanks with large openings. It runs for up to 5 hours per charge with an 8-hour charging time and a 68 dBA noise rating, while the RT50+ version uses a lithium battery system for faster charging. The rotationally molded polyethylene housing is corrosion- and impact-resistant, with an anti-collision design for tight-area maneuvering and an adjustable handle for compact storage. Each unit is factory-tested with clean water before shipping, so a small amount of residual water may remain in the tank or hose. Any green liquid present is anti-freeze solution added to protect internal components during transit and cold-condition storage. Features Battery-powered walk-behind floor scrubber 22" cleaning path 14.5-gallon recovery tank 550W brush motor, 200 RPM brush speed U-shaped squeegee for water recovery One-touch control panel Easy-drain tanks with large openings Quick brush replacement Up to 5 hours runtime, 8-hour charging time 68 dBA noise rating Corrosion- and impact-resistant rotationally molded polyethylene housing Anti-collision design for tight-area maneuvering Adjustable handle for compact storage RT50+ version available with lithium battery for faster charging Compatible with concrete, tile, epoxy, vinyl, terrazzo, and sealed stone floors Designed for warehouses, hospitals, schools, supermarkets, shops, and gyms Specifications Product Info Manufacturer SUNMAX Product Type Hard Floor Cleaning Machine Color Black & Orange Cleaning Performance Cleaning Width 22" Suction Working Width 31" Cleaning Efficiency Up to 30,000 sq ft/hr Coverage Per Tank Up to 15,000 sq ft Brush/Pad Pressure 50 lb Brush/Pad Speed 200 RPM Scrub Style Rotary Noise Level 68 dBA Tanks Solution Tank 13.2 gal Recovery Tank 14.5 gal Drivetrain and Electrical Drive System Walk-Behind Power Source Lead-acid Batteries Voltage 24V / 200Ah Charging Time 8 hours Continuous Working Time 5 hours Brush Motor Power 0.7 hp (550W) Vacuum Motor Power 0.7 hp (550W) Dimensions and Weight Dimensions (L × W × H) 45" L × 23" W × 37" H Packaged Weight 400 lb What's Included SUNMAX RT50 Walk-Behind Floor Scrubber Battery Battery charger