18" Cylindrical Auto-Scrubber with TPPL Batteries for Noise-Sensitive and Compact Spaces: Tornado BR 18/11
The Tornado BR 18/11 (model 99685E) is a walk-behind cylindrical floor scrubber pairing an 18" dual counter-rotating brush head at 1300 RPM with a 24V TPPL (Thin Plate Pure Lead) battery system. The cylindrical brush design simultaneously scrubs and sweeps, eliminating a separate pre-sweep pass on debris-laden floors. With an 11-gallon solution tank, 12-gallon recovery tank, and 3-hour runtime per charge, the BR 18/11 covers up to 17,969 sq ft per hour at 66 dB — quiet enough for daytime operation in schools, medical facilities, and occupied retail environments.
BR 18/11 Performance Specs: Cylindrical Brush, TPPL Power, and Runtime
18" dual counter-rotating cylindrical brushes at 1300 RPM: Simultaneous scrub-and-sweep action picks up debris without a pre-sweep step; 50 lbs of brush pressure ensures consistent floor contact on uneven or grout-lined surfaces
24V TPPL battery — 3-hour runtime per charge: TPPL (Thin Plate Pure Lead) technology is sealed, non-spill, and maintenance-free; no watering schedule, no acid exposure, no equalization charges required
11-gallon solution tank / 12-gallon recovery tank: Polyethylene construction resists chemical corrosion; tank sizing supports ~3 hours of runtime without refill or dump on most floor types
17,969 sq ft/hr productivity: 18" cleaning path plus 31" parabolic squeegee width; squeegee system delivers 100% solution recovery per pass
66 dB sound level: Quieter than normal conversation (70 dB); suitable for daytime cleaning in hospitals, schools, and occupied office buildings
157 lbs, 43" × 21" × 41" footprint: Compact enough to navigate school corridors, retail aisles, and patient-room hallways while maintaining a productive cleaning width
0.6 HP vac motor and 0.6 HP brush motor: Separate dedicated motors for brush drive and vacuum recovery; roto-molded polyethylene body resists impacts and chemical exposure
Schools, Healthcare Facilities, Retail, and Other Daytime-Cleaning Environments
The BR 18/11's 66 dB operating volume and TPPL battery system make it specifically suited to environments where cleaning cannot be scheduled around building closure. In schools, the 18" cylindrical brush handles cafeteria floors with food debris without a separate sweep pass, and the 3-hour runtime covers a full cleaning rotation before lunch. In healthcare settings, the sealed TPPL batteries eliminate the acid-spill risk associated with flooded lead-acid batteries near patient care areas, and the machine's 157 lb weight and 21" width allow navigation through most standard hospital corridor widths. In retail, the 66 dB sound level and compact profile allow floor maintenance during store hours without customer disruption. The quick-change parabolic squeegee system allows operators to swap worn squeegees without tools, reducing maintenance downtime between shifts.
TPPL vs. Flooded Lead-Acid Batteries: Operational and Total-Cost Advantages
Standard flooded lead-acid (FLA) batteries in auto-scrubbers require weekly water top-off, monthly equalization charges, terminal cleaning to prevent corrosion, and careful orientation to avoid acid spills — each representing labor cost and safety risk. TPPL batteries eliminate every one of those maintenance tasks: they are sealed, spill-proof at any orientation, require no watering or equalization, and deliver a consistent voltage curve throughout discharge that maintains brush and vacuum motor performance until the battery is nearly depleted. TPPL also charges faster than FLA — the BR 18/11's included charger brings the battery from depleted to full in a shorter window, enabling multiple-shift operation with opportunity charging between runs. Over a 5-year service life, the elimination of battery maintenance labor and the reduction in battery replacement frequency (TPPL cells last significantly longer than FLA at equivalent cycle depth) typically offset the higher initial cost of the TPPL configuration relative to the standard lead-acid BR 18/11 variants.
Model / Catalog Number
BR 18/11 / 99685E
Cleaning Path
18"
Squeegee Width
31"
Productivity
17,969 sq ft/hr
Solution Tank
11 gallons
Recovery Tank
12 gallons
Runtime per Charge
~3 hours
Battery
24V TPPL (Thin Plate Pure Lead) — sealed, non-spill, maintenance-free
What is the runtime per charge on the Tornado BR 18/11 99685E with TPPL batteries?
The Tornado BR 18/11 with TPPL batteries provides approximately 3 hours of runtime per charge on the 24V system. At 17,969 sq ft per hour, a full charge covers roughly 53,000–54,000 sq ft before requiring a recharge.
Why choose TPPL batteries over standard lead-acid on the BR 18/11?
TPPL (Thin Plate Pure Lead) batteries are sealed, non-spill, and maintenance-free — no weekly watering, no equalization charges, and no acid exposure risk. They deliver a more consistent voltage curve throughout discharge than flooded lead-acid, maintaining brush and vacuum performance until nearly depleted, and they last longer over their service life at equivalent cycle depth.
What type of brush does the Tornado BR 18/11 use?
The BR 18/11 uses dual counter-rotating 18" cylindrical brushes spinning at 1300 RPM with 50 lbs of pressure. The cylindrical brush design scrubs and sweeps simultaneously, picking up debris without a separate pre-sweep pass — a key advantage over disc-style scrubbers on floors with loose particles.
What is the sound level of the Tornado BR 18/11?
The BR 18/11 operates at 66 dB — quieter than a normal conversation (approximately 70 dB). This makes it suitable for daytime cleaning in noise-sensitive environments like schools, hospitals, and occupied retail spaces.
What is the cleaning productivity of the Tornado BR 18/11?
The BR 18/11 covers 17,969 sq ft per hour. Its 31" parabolic squeegee delivers 100% solution recovery per pass, so no second squeegee pass is needed on standard smooth or tile floors.
What are the solution and recovery tank capacities?
The BR 18/11 holds 11 gallons of cleaning solution and 12 gallons of recovery (dirty water). The polyethylene tanks resist corrosion from cleaning chemicals and support the machine's full 3-hour runtime without requiring a refill on most floor applications.
What floors is the Tornado BR 18/11 designed for?
The BR 18/11's cylindrical brush system performs best on hard floors — sealed concrete, VCT, ceramic tile, and epoxy-coated surfaces — especially those with grout lines or surface texture where a cylindrical brush's agitation outperforms a disc pad. It is not designed for carpet extraction.
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