Solid particle erosion at extreme conditions (high hardness and velocity of erodent particles, impact loading etc.) is a serious problem for different milling and mixing equipment. In the present study erosion resistance of different thermal sprayed and fused metal-matrix composite coatings was studied, the wear mechanisms at different wear conditions were clarified and the critria of coating selections in the conditions of solid particle erosion are proposed. The optimal metal-matrix based structure  of coatings with multimodal reinforesments and technological means for production of such coatings in dependence on working conditions are defined. Semi-industrial tests of thermal sprayed coatings have been carried out in disintegrator type mill machine.