COMEC primary impact crushers can replace large jaw crushers and be fed with material blocks the size of their feed opening. The crushing chamber and beater blade rotors are adapted to the feeding material and the requirements of the finished product. The front armouring of the model PU 1100 as well as the easily adjustable mobile impact surfaces of the models PU 100.100 and PU 140.125 allow customized grading curves in order to perfectly meet our customers’ individual requirements.