Single Rotor Impactor

American Pulverizer impactors all operate on the same principle.  The infeed material enters the impactor through the feed chute and is engaged by the rigid rotor hammers and hurled against the curtains.

Reduction is caused by impact against the curtains and rigid hammers and by collision with new infeed material entering the crusher.  The true impact principle promotes a uniform cubicle product.  The product size can be controlled by externally raising and lowering the curtains.  The rotor speed also greatly influences sizing.

The single impact crusher can replace a multi stage crushing process.  The high crushing effect and high reduction ratio achieved by impaction arise from exploiting inherent weaknesses and lines of cleavage present in the feeding material.