This mathematical concept of jaw crusher operation has been developed for modelling and subsequent throughput prediction from jaw crushers (see Chapter 10). Jaw Crusher Capacity Estimation. The capacity of jaw crushers is a measure of the mass or volume of crushed material produced in unit time of operation.
Lighter crushers sometimes have flexing in the frame which can lead to cracking – this rarely happens with the Grizzly King Jaw Crusher's reinforced design. Big reinforcing ribs provide frame rigidity and add to the weight of the crusher, making it heavier.