The overhead traveling crane is often used for receiving and lifting heavy loads. Sometimes there is a need for manipulating that load, so it is necessary, along with lifting and lowering, to enable rotation. The aim of this project is to construct a system for receiving and rotating heavy loads. The system is hung from the overhead traveling crane by a rope and four pulleys. It should be emphasized that the required load capacity is 140 t and that dimensions of the load carrier/acceptance frame are 3,2 x 3,2 m. Also, due to the need for load handling, it is necessary to satisfy the rotation speed around the vertical axis of 2 ° / s, while the rotation of the load requires one full turn. Load acceptance is done via Twistlock. In the introduction, the existing principles of construction implementation are analyzed and a short market analysis is made. Furthermore are offered three conceptual solutions, one of which is selected as the best and optimal solution. The introduction is followed by a calculation of all of the components that the mechanism consists of. Finally, there is technical documentation that represents calculated construction. The tool used in creating 3D models and technical documentation is the software package SolidWorks 2020.