28 inch Clarke (Alto) BOOST 28 EQ246698

For years the only way to productively clean and maintain smooth tile or concrete floors has been with a twin-disc automatic scrubber using contra-rotating pad or brushes. These machine operate with low (200-300) RPM and require high pad pressure to achieve an acceptable result. On these models, cleaning solution is slung away from the pads and only contained with side skirting that is easily worn or damaged. Another drawback to disc scrubbers is that the pad only cleans in one direction as it passes over the floor surface.

The unique BOOST® pad is rectangular, not round, and provides consistent contact across the cleaning path. Two round pads have less contact area in the center and on the edges.

Pad Size 28” x 14” (71 cm x 35.6 cm)
Cleaning Width 28” (71 cm)
Power Supply 24 Volt, (4, 6-V batteries) 250 AH or 330 AH
Vacuum Motor 3/4 HP (.56 kW), 3 stage, tangential discharge
Solution Tank 20 gal. (76 liters)
Solution Flow 0 to .56 gal/min (0 to 2.1 liters/min.)
Recovery Tank 20 gal. (76 liters)
Brush Motor 3/4 HP (.56 kW)
Brush Speed 2250 RPM
Scrub Pad Orbit 1/4” (.64 cm) diameter
Brush Pressure 130 lbs. (45.4 kg)
Speed Forward 250 ft/min. (76 m/min)
Speed Reverse 190 ft/min. (58 m/min)
Squeegee Width 39” (99 cm)
Squeegee Material Gum Rubber or Linatex
Cleaning Grade 6 degree incline
Charger On Board
Length of machine 56.25” (142.9 cm)
Width of machine 28.75” (73.9 cm) (head)
21.5” (54.6 cm) (body)
Height of machine 43” (109 cm)
Sound test @ operator ear 69 dBA
Machine Weight 586 lbs. (266 kg)

Docs

• Clarke Warranty