The major ingredient of limestone is calcium carbonate. And it is made up of calcite particles.

　　The hardness of limestone is relatively low (level 4-5). So it is easy to be broken. And then the cost of crushing limestone is relatively low in the mining machinery industry. For production line of limestone, we can use the jaw crusher and impact crusher. It is not only having better stone, but also we can prolong the life of the machine. In addition to this, because the hardness of limestone is lower, so for the stone shape demand is not high. We need to consider the characteristic of impact crusher, and we had better to choice tow machines of jaw crusher.

　　More, it is also use the materials of limestone in the cement plant. And it is use the composite crusher usually. And it can reach 10-20mm below. This way can crushing the smallest grading but not consider the shape of stone. In the same way, it also can produce large amounts of dust. So it is not suit the construction industry. Beyond that, this way is the best method.

　　The allocation of limestone production line is depending on the features of limestone. And Shanghai PIONEER machinery manufacturing co., LTD is willing to give the best service for you.