The impact crusher is named according to the working principle, that is, the material is crushed by the principle of impact crushing. It is a crusher equipment that is finer than the jaw crusher. It is mainly used for fine crushing operations in the stone production line, and the jaw crusher The crusher cooperates for crushing. So what role does the counterattack board in the counterattack crusher play during work? The function of the counterattack plate is to withstand the impact of the material hit by the plate hammer, so that the material is broken by the impact, and the material after the impact is rebounded back to the impact area, and the impact crushing is performed again to obtain the desired product size.
There are many forms of  counterattack board, mainly divided into two types: broken line shape and curved line shape. The broken line-shaped counterattack surface enables the materials on the counterattack board to be impacted in an approximately vertical direction, so a good crushing effect can be obtained. The arc-shaped counterattack surface can make the material block rebound from the counterattack plate, and form a fierce impact crushing zone in the center of the circle to increase the free impact crushing effect of the material.