What Should You Consider About Jaw Crushers

By Author: William
Total Articles: 22
Comment this article

About Jaw Crusher Opening Size, Jaw crushers are referred to by two sets of numbers, the first being the opening size of the jaw; the second being the width. So, a "1036" jaw would accept a 10" boulder at the top and be 3' wide. If the pit where the jaw is being used has river rock which does not exceed 10" in size then this size crusher would be acceptable. Larger crushers are better choices when the average size is larger, such as where rock is blasted using explosives. The width of the jaw directly impacts its throughput rate.
A Jaw Crusher is one of the main types of primary crushers in a mine or ore processing plant. The size of a jaw crusher is designated by the rectangular or square opening at the top of the jaws (feed opening). For instance, a 24 x 36 jaw crusher has a opening of 24" by 36", a 56 x 56 jaw crusher has a opening of 56" square. Primary jaw crushers are typically of the square opening design, and secondary Jaw Crushers are of the rectangular opening design. However, there are many exceptions to this general rule.
The nip angle describes the angle ...
... the stationary jaw plate and the pitman make with each other. The exact value of this angle isn't quoted or even determinable due to curvature in the jaws themselves but what is important is how wide vs. narrow it is. Wide nip angles can tend to expel material as the jaw closes as a large ball might squirt out from under a car tire. If the nip angle is narrow, not much vertical upward force is generated and more consistent crushing takes place.
Again about jaw crusher working principle, a Jaw Crusher reduces large size rocks or ore by placing the rock into compression. A fixed jaw, mounted in a "V" alignment is the stationary breaking surface, while the movable jaw exerts force on the rock by forcing it against the stationary plate. The space at the bottom of the "V" aligned jaw plates is the crusher product size gap, or the size of the crushed product from the jaw crusher. The rock remains in the jaws until it is small enough to pass through the gap at the bottom of the jaws.remains in the jaws until it is small enough to.