Many handling processes need the use of attracting and repelling forces at the same time, e.g. top-side handling. In these cases, repelling ultrasound forces are used in combination with attracting low-pressure forces. This technique enables an easy-to-use non-contact handling of parts, very much like the familiar top-side-gripping of parts. Additionally, form-unstable components can be smoothed, stabilized in their geometry and held in position, without any contact to the handling tool.