A jaw crusher, commonly known as a jaw crusher or tiger's mouth, consists of two jaw plates, a movable jaw and a stationary jaw, forming a crushing chamber that simulates the movement of an animal's jaws to crush materials. It is widely used to crush various ores and bulk materials in industries such as mining and smelting, building materials, highways, railways, water conservancy, and chemicals. The maximum compressive strength of the crushed material is 320 MPa.
Jaw crushers are primarily used as primary and secondary crushers in mining, building materials, and infrastructure. They are categorized by feed opening width into three types: large, medium, and small. Large crushers have feed openings greater than 600 mm, medium crushers have feed openings between 300 and 600 mm, and small crushers have feed openings less than 300 mm. Jaw crushers have a simple structure, are easy to manufacture, and operate reliably.
The working parts of a jaw crusher consist of two jaw plates: a fixed jaw plate (fixed jaw), fixed vertically (or with its upper end slightly tilted outward) to the front wall of the jaw crusher. The other is a movable jaw plate (movable jaw), positioned at an angle, forming a crushing chamber (working chamber) with the fixed jaw plate, which is larger at the top and smaller at the bottom. The movable jaw plate periodically reciprocates against the fixed jaw plate, sometimes moving apart and sometimes moving closer. When moving apart, material enters the crushing chamber, and the finished product is discharged from the bottom. When moving closer, the material contained between the two jaw plates is squeezed, bent, and split, causing it to break.
