Most machinery starts out as a crude device that has undergone significant changes before it becomes the machine that we use today. The rock crusher was first introduced in 1830, and it consisted of a drop hammer. Since then, the rock crusher has become a widely used piece of equipment on many construction sites, and it has taken many forms. Here is a list of different types of rock crushers and what projects they would be used on.
Jaw Crusher
A jaw crusher uses a constantly moving metal piece that crushes the stones on a situated metal piece in small movements. It is called a jaw crusher because it works the same was a human jaw does-food goes into your mouth and your bottom jaw pushes the food up against your fixed top jaw. The jaw crusher is usually made of cast steel because it is such a heavy duty machine. There are three types of jaw crushers: Blake crusher, Dodge crusher, and the Universal crusher. The type of jaw varies, which makes the different jaw crushers preferred for certain projects. For example, the Dodge crusher is used for laboratory purposes and not as heavy duty machinery because it can get clogged too easily, making it useless for large-scale projects.
Gyratory Crusher
Similar to a jaw crusher, the gyratory crusher pulverizers the stones by placing them between two manganese steel plates and going straight down. It does not rotate, rather it is powered by electricity. Gyratory crushers are used in mine or ore processing plants and they can be used for primary or secondary crushing. It crushes rocks by rotating the vertical shaft and crushing the rocks in a circular motion where they fall out the narrow bottom when they are small enough.
Cone Crusher
The cone crusher can be divided into four subtypes: compound crusher, symons cone crusher, single cylinder hydraulic cone crusher, and the multi-cylinder hydraulic cone crusher. The basic structure of the cone crusher is similar to a gyratory crusher but much wider. It spins around and crushes the stone against the side of the machine, where it falls down into a lower chamber and is crushed again until it falls out the bottom. The cone crusher is used on construction sites because it produces great results, it relatively cheap and it has a built-in function that allows it to correct itself when it becomes overloaded with rocks.
Impact Crushers
These crushers don’t use pressure to crush rocks, rather they use a rotating motor that uses impact to crush the rocks against the sides of the large metal cage. The cage can be adjusted to the size of the rock that is needed and once the rock is small enough, it falls out the bottom of the cage. Impact crushers were originally used for softer stone like limestone and gypsum but due to improved design, it can handle much tougher stones. There are two kinds of impact crushers: the horizontal shaft impactor and the vertical shaft impactor.
Rock crushers are used in construction projects all around the world have been used for decades. They are an important piece of machinery that comes in a variety of different types. This list includes a description of the different types of rock crushers so you can make an informed decision when choosing one for your next project.
