The main goal of the diploma thesis is to understand the issues and construction of additional equipment for excavators. The work is divided into two basic parts. In the first, theoretical part, the goal is to create an overview of the development and gradual development of equipment for demolition and cutting of concrete and then create an overview of currently available equipment from various companies around the world. In the second part, we will focus on the design of the device itself. The first step will be the creation of conceptual design, one of which we will then elaborate in detail into a complete form. After creating the model, we will focus on the individual parts that we used in the construction. The last chapter of the practical part will be FEM analyzes of selected subassemblies.