BALÁŽ, Ladislav: Design of a front loader with grapple for a universal wheeled tractor. [Diploma thesis] - Technical University in Zvolen. Department of Environmental and Production Engineering. Supervisor: doc. Ing. Jozef Krilek, PhD. - Degree of professional qualification: engineer (Ing) - Zvolen: TU, 2017, 100 pagesThe diploma thesis deals with the current overview of front loaders with grapple and universal forestry tractors in the forest industry. The theoretical analysis relates to the basic prerequisites for efficient use of tractors along with slope accessibility, which mainly addresses the transverse and longitudinal stability of the tractor and the tensile strength on orthogonal trajectories. Forest body modifications for tractors are specific to various types of work and types of tractors. Manufacturers of forest bodies are widespread around the world. The main aim of the work is the conceptual and contractual design of front loader with grapple the ZETOR Slovakia s.r.o. on Zetor Proxima. From the conceptual design, a value analysis is made, from which the concept is chosen and which afterwards is used for the tension and deformation analysis. In addition to the tension and deformation analysis of the ploughshare, a linear hydraulic motor for opening and closing of the grapple was also designed as an inseparable part of the front loader with grapple.