A jaw crusher uses compressive force for breaking ore pieces. Compressive force is applied by two jaws (dies), one of the crusher jaws is stationary (fixed jaw) whilst the other is moving (swing jaw).
Material is fed into the top feed opening (gape) and gradually moves downwards towards the lower discharge outlet. As the materials passes towards the outlet, it is crushed between the stationary and moving jaws. The v-shaped area between the two jaws is referred to as the ‘crushing chamber’. Because the space between the two jaws becomes narrower towards the discharge outlet, the material size is progressively reduced.
The gap between the jaws at the discharge outlet dictates the material output size. A typical jaw crusher will have a crushing ratio of between 6:1 to 8:1 i.e. the feed material size is reduced by a factor of 6 or 8.
13 июн 2024
