Mr. Peter Laßnig and Mr. Klaus Rapf targeted to establish tiger nuts as domestic aliment into the Austrian market. They are planning to grow and put on the market the lump of "Cyperus esculentus" on their fields in Marchfeld and in Burgenland. Following the permanently increasing wish of consumer society, asking for domestic and ecological produced food, confirmed their project. For an economic production of this plant species, a special harvester, considering domestic harvest conditions, was needed. Therefore, at the beginning of the year 2014, they assigned the "Institut for Engineering Design and Logistic Engineering" to develop and construct this kind of machine. Thereupon a team of four students - Kevin Höglinger, Roman Meyer, Christian Schmaus and me, Robert Schöggl - with leadership of Univ.Prof. Dipl.-Ing. Dr.tech. Georg Kartnig started designing and developing the tiger nuts harvester. Our main task was the development of a special harvest method and the engineering of this machine. Within a term via systematic methods, according to the university course "Höhere Konstruktionslehre und Produktentwicklung", a machine accrued on pc. A machine, built to manage the domestic harvest conditions and involved challenges. The tiger nuts harvester should cope with the humid weather conditions, different ground conditions, including possible stone emersion as well as network of roots built by tiger nuts themselves. Basically, the machine consists of a combination of different conveyers. Starting with two elevator chains, screening the bigger part of earth, followed by a roller unit, separating the delivery rate of bigger stones, and a milling machine, isolating the lump from the network of roots. Accordingly, the delivery rate will be transported via two belt conveyers right to the rotary screen. Attaining there, the last separation takes place, split up into three fractions. First fines, mostly fine soil, gets settled out, finally the real harvest goods gets separated of residual green plant mass, roots and leaves.