Abstract: The invention relates to a grinding installation with a grinding machine having a head plate which is driven in a rotating and/or oscillating manner and is designed for receiving and releasably holding a grinding disk and with a device for replacing a grinding disk, which is releasably fixed on the head plate, with a stop element, against which the head plate with the grinding disk can be placed in a removal position, at least one removal finger which is adjustable between a retracted position and an engaged position, in which the removal finger engages into a recess on the head plate in the removal position, and a clamping means, through which the at least one removal finger is displaceable relative to the stop element, wherein the removal finger, for the purpose of releasing the grinding disk, comes to rest against its rear side and clamps the grinding disk on the stop element. The invention furthermore describes a corresponding method for replacing a grinding disk.

Abstract: The invention relates to a grinding installation with a grinding machine having a head plate which is driven in a rotating and/or oscillating manner and is designed for receiving and releasably holding a grinding disk and with a device for replacing a grinding disk, which is releasably fixed on the head plate, with a stop element, against which the head plate with the grinding disk can be placed in a removal position, at least one removal finger which is adjustable between a retracted position and an engaged position, in which the removal finger engages into a recess on the head plate in the removal position, and a clamping means, through which the at least one removal finger is displaceable relative to the stop element, wherein the removal finger, for the purpose of releasing the grinding disk, comes to rest against its rear side and clamps the grinding disk on the stop element. The invention furthermore describes a corresponding method for replacing a grinding disk.

Abstract: A supply line for supplying coating application devices with coating substances, e.g., paint from one or a plurality of containers containing the coating substance(s), includes a valve device capable of displacing the coating substance in the supply line in a direction opposite the direction of flow of the coating substance from the container into the supply line, with the supply line being radially compressible upon being impinged by pressure medium and with the valve device being arranged at an end of the supply line remote from the one or a plurality of containers so that impinging with the pressure medium is effected in the direction opposite the direction of flow of the coating substance at the time of application of the coating substance.