Abstract: A construction site mixing machine for mixing mixing materials contains a mixing container for a mixing material, a mixing tool displacement device, by which a mixing tool is displaceable between a mixing tool use position and a mixing tool non-use position. The mixing tool displacement device has a telescoping device or is formed by such a telescoping device. The mixing tool is displaceable by the telescoping device between the mixing tool use position and the mixing tool non-use position. According to an alternative concept, a control unit is configured to drive the mixing container by the mixing container drive unit in the opposite direction to the mixing tool which is drivable in rotation by the mixing tool drive unit and/or that the control unit has a timer function by which the operating time of the mixing tool drive unit and/or the mixing container drive unit is settable.

Abstract: A device for mixing fluid, and powdered, flowable materials, particularly for mixing automotive refinish coatings for use with spray guns, having a first component (3) mounted rotatably on a frame (2), having a second component bearing or forming a mixing product receptacle (4) mounted rotatably on the first component (3) and having at least one drive device for a rotary drive of the first component (3) and a rotary drive of the mixing product receptacle (4), whereby the drive device is preferably designed in such a way that the direction of rotation of the first component (3) is opposed to the direction of rotation of the mixing product receptacle (4). According to the invention the ratio of rotation between the rotational speed of the first component (3) and the rotational speed of the mixing product receptacle (4) being approximately 1:1.1 to 1:2.0, preferably 1:1.3 to 1:1.8, whereby a preferable rotational speed of the first component (3) is approximately 200 to 400 r/min, preferably 250 to 350 r/min.