正罡机械细碎机系列采用超大的弧形破碎腔，是一种反击式高效细碎机，适用于破碎抗压强度不超过200MPa的石灰石、泥灰岩、砂岩、页岩、石膏、煤等大块矿石原料。利用“石打石”自击破碎原理来实现物料在破碎腔中充分的粉碎，是一种进料粒度大，出料粒度小的高效细碎机，常用于制砂生产线作业。
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