Abstract: A grinding disc for a grinding device, with a fastening interface formed for rotationally fixed fastening to a driven member of the grinding device such that the grinding disc, limited by a peripheral disc rim surface, can be driven into a grinding movement. The grinding disc has a fastening surface on a working side, to which fastening surface a grinding means provided with an abrasion layer can be or is detachably fastened via fastening means. The grinding disc has dust extraction openings arranged on the fastening surface and air intake openings arranged on the disc rim surface, which are connected respectively to dust outlet openings arranged on the device side of the grinding disc via an extraction channel system running in the grinding disc, with the result that, during grinding, the resulting grinding dust can be removed by means of a dust extraction device coupled to the grinding device.

Abstract: A sanding pad (40) for a sanding machine (15), including comprising a drive holder (49), situated on the machine side (41) of the sanding pad, to be fastened in a non-rotatable manner to a drive (26) of the sanding machine (15), such that the sanding pad (40) can be driven by the sanding machine in an in particular rotational and/or eccentric sanding motion that is suitable for sanding a workpiece (W); wherein the sanding pad has a machining side (42), which is opposite the machine side (41) and has a machining face (45) on which a sanding means (90) for abrasive machining of a workpiece (W) can be arranged so as to be fixed or removable using an adhesive layer (66); wherein inflow openings (48) for dust-laden dirty air (S) to flow in are situated in the machining face (45), and outflow openings (43) fluidically connected to the inflow openings via through-channels (59) are situated on the machine side (41).

Abstract: A surface processing device, in particular a manual grinding device, includes a processing body which has at least one processing surface for grinding or polishing a workpiece surface, wherein inlet openings are arranged on the at least one processing surface for suctioning off dust-laden dust air and these inlet openings are flow-connected via a duct arrangement to a suction connection to which a suction device can be connected. The surface processing device is provided with an adjustment means for adjustment of effective flow cross-sections, with which inlet openings of a first processing surface section of the at least one processing surface and inlet openings of at least one second processing surface section of the at least one processing surface are flow-connected to the suction connection, so that a suction effect on the first processing surface section and the at least one second processing surface section can be set and/or switched off.

Abstract: A surface processing device, in particular a manual grinding device, with a processing body which has at least one processing surface for grinding or polishing a workpiece surface, wherein the processing body has a flat surface portion with a flat processing surface for processing flat workpiece surfaces and at least one curved section with a curved processing surface for processing curved workpiece surfaces. The curvature section of the processing device, extends over a side of the processing body opposite to the plane surface portion, wherein the curvature portion has a plurality of continuously merging curvature sections with mutually different radii of curvature and does not project in front of the flat processing surface of the flat surface portion.

Abstract: A surface processing device, in particular a manual grinding device, includes a processing body which has at least one processing surface for grinding or polishing a workpiece surface, wherein inlet openings are arranged on the at least one processing surface for suctioning off dust-laden dust air and these inlet openings are flow-connected via a duct arrangement to a suction connection to which a suction device can be connected. The surface processing device is provided with an adjustment means for adjustment of effective flow cross-sections, with which inlet openings of a first processing surface section of the at least one processing surface and inlet openings of at least one second processing surface section of the at least one processing surface are flow-connected to the suction connection, so that a suction effect on the first processing surface section and the at least one second processing surface section can be set and/or switched off.