Studying the wear process of shares operating in an abrasive environment on the soils of meadow, light and typical gray soils, the parameters of the limiting state are analyzed and it is revealed that the main parameters that contribute to the rejection of shares are the parameters of the occipital chamfer. It is also noted that maintaining a generalized index of blade rejection creates an opportunity to generally assess the degree of wear of the blade, for all changing parameters at the same time and quantify it. This facilitates the assessment of the quality state of the wear of the blade, not only of an individual, but also of groups of compared working bodies. According to this indicator, by conducting a comparative assessment of various designs and working conditions (or tests), it is possible to determine the weakest of them in terms of bluntness or the most abrasive working environment of the working bodies.

The design of a continuous rotary blancher for moisture-thermal processing of grapes and fruits before laying them for drying has been developed. Taking into account the conditions of mechanization of this process, we expressed a working hypothesis about the possibility of creating such means, the action of which will provide a continuous technology for the flow of all operations that make up the heat treatment process. It includes the minimum heat consumption for the process, design and kinematic parameters, which will allow mechanizing technological operations with the specified modes of their operation and preparing the processed product for further drying in the continuous in-line production of raisins. A method for calculating the thermal load of a blancher is given.