Impactor/Impact Breakers
The Impactor or Impact Breaker or double impeller breaker crusher uses the
energy contained in falling stone, plus the power imparted by the massive
impellers. Rock fed into the breaker falls directly on to the impellers (which weigh
up to 6.5 tons) and rotate away from each other, turning up and outward, at
speeds from 250 to 1000 rpm depending on the desired size of finished product.
Pieces of rock are sent crashing against steel breaker bars mounted in specific
positions around the breaking chamber or crash against other rocks hurtling
through the chamber and are further reduced without the use of extra
horsepower. The stone falls again onto the impellers to repeat the cycle until
reduction is complete. Size is controlled by impeller speeds and the vertical and
horizontal spacing of adjustable breaker bars.
