The jaw crusher is normally used as primary crusher. It is mostly suitable for hard materials and the wear cost are lower than the impact or cone crusher. The main difference is that you can get bigger productivity with the cone crusher by lower materials size as with the jaw crusher.
Cone crushers are a type of compression crusher used by aggregate, coal, concrete, crushing, fracking sand, and mining industries, which reduces material by squeezing or compressing it until it breaks.
When it works, the rotor driven by the motor has high-speed rotation. When the materials go into the plate hammer area, they could be crushed by plate hammer on the rotor. Then materials are thrown to the counterattack device to be crushed again, and they are re-broken by hammer.
The term “primary crusher,” by definition, might embrace any type and size of crushing machine. The term implies that at least two stages of crushing are involved, but in many cases the machine which performs the function of initial crusher is the only crusher in the plant.