A jaw crusher is a stone crushing equipment with high production capacity, large crushing ratio, and high crushing efficiency. It is mainly used for primary and secondary crushing of hard or medium-hard stones. It can process all kinds of ores with compressive strength not higher than 320MPa to medium particle size at one time. It is often combined with a cone crusher, impact crusher, sand-making machine, etc. to form a complete set of sand and gravel production plants. PE jaw crusher is widely used in mining, metallurgy, the chemical industry, building materials, electric power, water conservancy, transportation, and other fields.