The impact crusher is generally used at the second crushing stage to process medium hardness materials and has a wide range of material suitability. It consists of a rotor, a plate hammer, a striking plate, a frame, a counterattack plate, a transmission component, etc. What are the excellent designs of a good impact crusher? This article briefly introduce it from several angles:

1.1 Crushing cavity

The crushing cavity of the impact crusher is generally a two-cavity design. The material enters through the feed port, and the hammer plate is driven by the inertia of rotor from bottom to top to catch the incoming materials and throw them to the upper counterattack plate. The crushing chamber must have enough space for the materials so as to make them fully impacted.

1.2 vulnerable parts

The common vulnerable parts of impact crusher are hammers, counter-attacks, square steel, springs, etc. Among them, the fastest wearer is the hammer and the counterattack.

The wear of the plate hammer often appears on the side facing the material, and the metal utilization rate can be as high as 45% to 48%. The wear is more serious when crushing higher hardness mateirals, and that will bring about frequent part replacement. The role of the counterattack is to withstand the impact of the material struck by the hammer, so its surface bears complex stress.

High manganese alloy is generally used to make vulnerable parts. The main feature of this material is that under the action of large impact or contact stress, the surface layer will quickly produce work hardening. It is featured by high wear resistance and excellent performance, which can extend the service life and reduce the frequency of replacement.

1.3 Discharge size adjustment device

Convenient discharge size adjustment device can improve the efficiency of the mobile crushing station to some extent. There are many ways to adjust the output of the impact crusher: rotor speed adjustment, gap adjustment between counter-attack and blow bar. We usually use gap adjustment. And it is realized by adjusting the bolts on the top of the counterattack plate. If the pitch is to be adjusted, the gap between the counterattack plate and the rotor is changed by the hydraulic device adjusting spring to control the crushed material particle size. The control and adjustment method of the discharge granularity is simpler, safer and more efficient than other types of crushers.

1.4 Usage and maintenance

The maintenance of impact crusher is simple and easy. As long as the casing baffle is opened, the maintenance, repair and replacement of the hammer, counter-attack plate and liner plate can be done. Moreover, strong interchangeability of components and less wearing parts make easy procurement and management of spare parts. CFTC is a domestic professional mining machinery equipment manufacturer located in Zhengzhou, Henan Province. The crushed series products include jaw crusher, cone crusher, impact crusher, hammer crusher, mobile crushing station, etc, and we can also help users configure a complete stone production line. So, CFTC is your perfect choice.