The invention relates to a sanding pad for a sander, such as an eccentric sander, which sanding pad includes a disc-shaped body with a rotation axis. The disc-shaped body has a first and second side extending substantially radially from the rotation axis and a third peripheral side extending between the first and second side. The sanding pad includes a coupling arranged on the first side, concentrically with the rotation axis, for coupling to a sander, a disc-shaped flexible plate which is arranged concentrically with the rotation axis and which lies with a first side against the second side of the disc-shaped body, where the disc-shaped flexible plate extends beyond the peripheral side as seen in radial direction; and attaching means for attaching a sanding layer arranged on a second side of the disc-shaped flexible plate opposite the first side of the plate.

A grinding wheel includes an elastomerically deformable supporting layer, at least a first metallic surface fastened to the elastomerically deformable supporting layer, the metalic surface being an elastically deformable metal foil and includes abrasive particles attached to the at least one metalic surface. The particles may include at least one of: cubic boron nitride or diamonds. The metal foil may have a thickness of less than 1 mm. The abrasive particles may be bonded galvanically on the metallic surface. The abrasive particles may be bonded on the metalic surface in a plurality of areas having regions without abrasive particles therebetween. The metal foil may be adhesively bonded onto the elastomerically deformable supporting layer. The elastomerically deformable supporting layer may be plastic foam. The elastomerically deformable supporting layer may be adhesively bonded onto a metallic supporting body.

A grinding wheel includes an elastomerically deformable supporting layer, at least a first metallic surface fastened to the elastomerically deformable supporting layer, the metalic surface being an elastically deformable metal foil and includes abrasive particles attached to the at least one metalic surface. The particles may include at least one of: cubic boron nitride or diamonds. The metal foil may have a thickness of less than 1 mm. The abrasive particles may be bonded galvanically on the metallic surface. The abrasive particles may be bonded on the metalic surface in a plurality of areas having regions without abrasive particles therebetween. The metal foil may be adhesively bonded onto the elastomerically deformable supporting layer. The elastomerically deformable supporting layer may be plastic foam. The elastomerically deformable supporting layer may be adhesively bonded onto a metallic supporting body.

A cooling device for a rotating machine has a fan assembly coupled with a backing plate. A hub, on the backing plate, secures the cooling device with a shaft. The backing plate includes one or more vents to enable air to exit the cooling device. The fan includes an opening to enable air to enter the cooling device. A chamber is formed between the fan assembly and the backing plate. During rotation, air is drawn into the opening. The air is passed into the chamber and exits through the vents to cool a work surface or working pad attached to the backing plate.

A disc changing system for a robotic defect repair system is presented. The system has a first abrasive disc and a second abrasive disc. The first and second abrasive discs are coupled to a liner. The system includes an abrasive disc placement device configured to automatically: remove the first abrasive disc from the liner, transport the first abrasive disc to a robotic tool of the robotic defect repair system, and place the first abrasive disc on a backup pad coupled to the robotic tool. The system also includes an abrasive disc remover configured to automatically remove the first abrasive disc after receiving a removal signal. The system also includes a controller configured to send an instruction to the disc placement device to remove, transport and place the first abrasive disc, instruct the robotic tool to conduct an abrasive operation. The controller is also configured to send the removal signal. The controller is a processor and the instructions are stored on a non-transitory computer-readable medium and executed by the processor.

A grinding package fitted on robotic arm includes a main body, a pneumatic motor, a bridging part and a grinding tool. The main body is formed with a first space, a second space, a communicating hole communicating the first space to the second space, a connecting wall within the first space, an intake channel, an exhaust channel, openings of the first space and the second space respectively located on each of two parallel sides of the main body, the connecting wall having a ventilation hole. The pneumatic motor includes a motor body within the first space, and a transmission shaft connected to the motor body while extended from the second space through the communicating hole. The bridging part is combined with the main body and the robotic arm, the bridging part closing off the first space, the grinding tool facing the second space and being joined to the transmission shaft.

The invention refers to a hand-held power tool (1) for sanding or polishing a working surface (30) of a workpiece. The power tool (1) comprises a housing (2) and a backing pad (3) adapted for performing an orbital or a random orbital movement in an extension plane (25) of the backing pad (3) in respect to the housing (2) during intended use of the power tool (1). The power tool (1) further comprises in the housing (2) a motor (4) with a motor shaft (5) adapted for performing a rotational movement about an axis of rotation (6), and means (7, 8) for transforming the rotational movement of the motor shaft (5) into the orbital or random orbital movement of the backing pad (3). It is suggested that the backing pad (3) is supported in respect to the housing (2) of the power tool (1) in a manner freely rotatable about a longitudinal axis (9) extending perpendicular to the extension plane (25) of the backing pad (3), and the housing (2) or the backing pad (3) comprises at least two first magnetic elements (16) spaced apart from each other in a direction extending parallel to the extension plane (25) of the backing pad (3), and the backing pad (3) or the housing (2) comprises at least one second magnetic element (17) located in a space (41) between at least two of the first magnetic elements (16) in such a manner that the at least one second magnetic element (17) is held at a distance to the at least two first magnetic elements (16) by means of magnetic force at least when the motor (4) of the power tool (1) is running and the power tool (1) is in an idle state, thereby limiting the movement of the backing pad (3) to an orbital movement.

A system and method for a grinding disc, the grinding disc made out of three discs, capable of grinding in three positions such as the bottom, side, and top instead of only one position, the top disc and middle disc having an aperture such that a shaft having a washer and bar is connected to the discs by sliding the through the top disc whereby the washer is then received by the middle disc, the discs are then fastened together with the bar protruding from the discs whereby the bar may be connected to a tool such as drill, the grinding disc may then be used at multiple angles when connected to the tool.

A system and method for a grinding disc, the grinding disc made out of three discs, capable of grinding in three positions such as the bottom, side, and top instead of only one position, the top disc and middle disc having an aperture such that a shaft having a washer and bar is connected to the discs by sliding the through the top disc whereby the washer is then received by the middle disc, the discs are then fastened together with the bar protruding from the discs whereby the bar may be connected to a tool such as drill, the grinding disc may then be used at multiple angles when connected to the tool.

The application relates to a backing pad arrangement suitable for an abrading system. The backing pad arrangement comprises a backing pad (413, 513, 523), and an additional layer (418, 518, 528) or an abrading article (417, 527) adapted to be attached to the backing pad (413, 513, 523) with at least one fixing member (319, 419, 519, 529), which at least one fixing member (319, 419, 519, 529) is hollow in its longitudinal direction. The application further relates to the abrading system comprising the backing pad arrangement according to the application.