The Difference between Impact Crusher and Jaw Crusher

First, let’s start with features of the crushers:
1) Jaw crusher is mainly used as primary and secondary crushing in mining, building materials, infrastructure and other industries. It is divided into three models (large, medium and small) according to the width of the feed opening. The standard is: a crusher whose feed opening is wider than 600mm belongs to large crusher, that between 300-600mm is medium crusher and that less than 300mm is small crusher. The main feature of jaw crusher is its simple structure, which is easy to manufacture, reliable at work, and convenient to use and maintain.
2) Impact crusher is the latest high-efficiency crushing equipment. Compared to other crushers, it is mainly characterized by small size, simple structure, large crushing ratio, low energy consumption, large production capacity, uniform particle size and selective crushing effect, which is a kind of promising stone crushing equipment.
 
Secondly, let’s focus on features of working principle:
 
1) Jaw crusher has a variety of structural forms, but they have the same working principle. Namely, crushing by the cyclical movement of the movable jaw.
 
2) Impact Crusher is a crushing machine using the impact energy to crush materials. Driven by the motor, the rotor rotates at high speed. While materials go into the plate hammer area, they are crushed to pieces by striking the plate hammer in the rotor, then broken again after being thrown back onto the impact device, and then re-crushed after bouncing back to the plate hammer area from the back liner. By adjusting the space between the impact frame and the rotor, the particle size and shape that discharged can be changed.
 
Finally, let’s discuss from their application range.
 
1) Jaw crusher is mainly used for secondary and fine crushing of hard ores and rocks in metallurgy, mining, chemical, cement, construction, refractory sectors and ceramics and other industries. Materials whose compression strength is not more than 320 MPa can be crushed by jaw crusher.
 
2) Impact crusher crushes materials whose length is shorter than 100-500 mm and compressive strength is no more than 350 Mpa. It has the advantages such as: high crushing ratio, cubic finished particles, etc. At present, since the wear-resistant materials appear, it has been used in some metal processing plants.