Abstract: A washer includes driving and scrubbing rollers that press against the opposing surfaces of a substrate, which may be, e.g., a small form factor disk. The driving rollers and scrubbing rollers are approximately aligned along two different radii of the substrate that are separated by 180 degrees. The driving rollers rotate in opposite directions as do the scrubbing rollers. During the scrub cycle, the driving rollers cause the substrate to rotate, while the scrubbing rollers scrub the opposing surfaces of the substrate. Outside diameter rollers that are orthogonally positioned relative to the driving rollers and the scrubbing rollers, and which may be free spinning, contact the outside diameter of the substrate and hold the substrate in position during the scrub cycle. The substrate is loaded into the washer by lifting the substrate, via a lifting arm, to the driving and scrubbing rollers.