An embodiment sanding device includes a housing mountable on an arm of a robot, a sanding tool assembly rotatably installed on the housing by a spindle shaft, and a sanding pressure regulating unit coaxially connected to the spindle shaft and configured to regulate sanding pressure of the sanding tool assembly applied to a coating film while reciprocating the spindle shaft in an axial direction.

An embodiment sanding device includes a housing mountable on an arm of a robot, a sanding tool assembly rotatably installed on the housing by a spindle shaft, and a sanding pressure regulating unit coaxially connected to the spindle shaft and configured to regulate sanding pressure of the sanding tool assembly applied to a coating film while reciprocating the spindle shaft in an axial direction.

Described is a high-pressure water-powered rotary tool in a horizontal orientation used for polishing, wet-polishing, grinding, polishing, a surface or in a vertical orientation for cutting a hard material.

Described is a high-pressure water-powered rotary tool in a horizontal orientation used for polishing, wet-polishing, grinding, polishing, a surface or in a vertical orientation for cutting a hard material.