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The paper notes that lifting and transport machines are an integral part of any type of production, since they serve all types of technological processes. Cranes greatly contribute to the smooth operation of the process equipment, so ensuring the quality and increasing the productivity of the crane equipment allows you to improve the performance of the process equipment. The directions and possible ways of improving the designs of General-purpose bridge cranes to increase the durability and improve the reliability of their operation are considered. The main reasons for the need to upgrade bridge cranes in operation are given. The analysis of the main principles of crane equipment modernization is given. The issues of modernization of load-lifting bridge cranes in order to increase productivity, ensure structural improvement, safety in operation, and technical and economic efficiency are considered. To determine the degree of manufacturability of the design, indicators are proposed, for which the classification according to the main evaluation criteria is given. The economic assessment of the feasibility of modernizing the crane economy is given.

Methods to ensure durability and improvement of reliability of bridge cranes of General purpose during their operation