Arguably one of the most valued benefits of robots in the workplace is to replace humans engaged in repetitive or hazardous manufacturing tasks, thus reducing OH&S risks and enabling employers to redeploy workers to more suitable tasks.
This is a tremendous boon and, whilst not documented, saves many injuries and lives in the industrial environment.
An excellent example of a Polishing robot is one used for Metal Polishing and Consolidated Brass in Adelaide, South Australia. Kawasaki robots are used to polish tapware to a lustrous finish.
The tapware is loaded by the operator into an automated carousel which is rotated through 90 degrees into the polishing cell. The robot then picks up each item in turn, polishes it and replaces it in its original location. The robot will work its way through the entire carousel and when finished the carousel is rotated presenting another batch of items to be polished.