Machines for crushing, breaking, grinding and mixing solids, namely, machines for crushing wood, rotary grinding machines, grinding and breaking machines for the treatment of ceramics, metallurgical material, bulk material from mining, in particular ores and mineral, refractories, glass, building material, in particular cement, dry mortar, plaster, foundry sand, carbon paste, battery paste, paper, recycling material and waste, mixing machines for the treatment of ceramics, metallurgical mater...