Cylindrical deck has an integrated sweeping function. On-board charger is convenient and allows the machine to be charged anywhere. Green Features include: Sound level <=70 dBs, tool free brush removal, tool free squeegee removal, one button operation. A cylindrical scrub brush system will (wet) sweep small amounts of solid debris into a removable tray while also washing the floor. You eliminated the manual pre sweeping of your factory or warehouse floor for greater productivity and fewer clogs in the squeegee section of the scrubber. Plus there is often no need for an additional separate sweeper or even a combination machine when a cylindrical machine will do the job. Cylindrical scrubber usually turn their brushes at a speed that is three times the rotation of a disk brush. They are an ideal choice for grouted tile or concrete floors that are not perfectly smooth.