Hammer Crusher & Impact Crusher

By: FTM MachineryMarch 02nd,2019

Both the impact crusher and the hammer crusher use high-speed impact force to break the materials. Moreover, the impact crusher and the hammer crusher not only have similar shapes, but also have a rotor structure. Therefore, many people think that there is no difference between the two types of crushing equipment: impact crusher and hammer crusher. In fact, in addition to the difference in the appearance of the equipment and components, the two have great differences in the crushing cavities, wearing parts, discharge adjustment and rotor structure. Here we will introduce the differences between the impact crusher and the hammer crusher.

Different Crushing Chambers

The crushing chamber of the impact crusher is large, and the feed port is low and large. The crushing of the material not only relies on the impact of the hammer but also the repeated impact between the material and the counter-impact plate or the material and the material, thereby better crushing the bulky material. However, the hammer crusher has a small crushing chamber and good structural sealing performance, which solves the problems of dust pollution in the crushing space and leakage of the body.

Plate hammer and hammer head are different in action directions

The hammer of the impact crusher picks up the material from bottom to top and throws the material onto the counter-attack plate above. The hammer crusher breaks the material in the direction in which the material falls. The rotor of the impact crusher runs clockwise, and the hammer strikes the material from bottom to top. The rotor of the hammer crusher runs counterclockwise, and the hammer strikes in the direction in which the material falls.

Different discharge adjustment methods

There is no grid section in the lower part of the impact crusher. The adjustment of the product size can be controlled by adjusting the rotor speed, rotor diameter, the size of the feeder opening and the gap of the grinding chamber. The hammer crusher controls the product size by adjusting the size of the screen gap. Therefore, when dealing with materials with large water content, the impact crusher can avoid the phenomenon of clogging the grid section when crushing wet materials, and is more advantageous.

Different rotor links

The hammer and rotor of the impact crusher are rigidly linked, which means that the hammer is fixedly mounted on the rotor. In the case of crushing, the inertia of the entire rotor can be fully utilized to impact the material, which not only breaks the material, but also has great speed and kinetic energy. However, the hammer crusher crushes the material by a single hammer head (the hammer head is suspended), and has limited speed and kinetic energy.

From the above comparison, we can see that the impact crusher is more advantageous in crushing large materials and materials with relatively high water content, and the hammer crusher is more suitable for crushing materials with smaller particle size. In actual production, you can choose the right equipment according to your own production conditions to ensure the production effect.