Jaw Crushers are often used as primary crushers and are perhaps the most popular crusher worldwide. These compressive crushers are suitable for most any type of material.In this type of crusher, reduction takes place between a stationary jaw plate and a moving jaw plate. The moving jaw plate is mounted on the pitman, which is given a reciprocating motion. Crushing takes place when the pitman moves toward the stationary jaw, compressing the material.
Liming heavy industry produces jaw crushers, which feature a pitman mounted on an eccentric shaft at the top. At the bottom of the assembly, the pitman is held in position by a toggle plate. The combination of eccentric motion at the top and rocking motion at the bottom provides a positive downward thrust throughout the crushing chamber.
jaw crushers have better feed acceptance capability than the corresponding double toggle crushers. jaw crushers are reliable, robust machines, offering a 6:1 reduction ratio in most applications, and will accommodate hard, abrasive materials.
Today,jaw crusher is available with either traditional hydraulic-shim adjustment or adjust-on-the-fly capabilities with analog control. It can be used in a variety of operations, including rock quarries, sand and gravel, mining, construction aggregates, and by road building contractors. Materials processed by the Universal jaw crusher include limestone, granite, basalt, gravel, gold ore, copper ore, iron ore, limestone, gypsum, concrete rubble and more.