· The jaw crusher discharge opening is the distance from the valley between corrugations on one jaw to the top of the mating corrugation on the other jaw. The crusher discharge opening governs the size of finished material produced by the crusher. Measuring Discharge Opening: Measure distance at bottom of jaws at the point of the crushing cycle .
larger material, Blake type jaw crushers are preferred. The characteristics of such crusher are: 1. Larger, rough, massive and sticky rocks can be crushed. 2. They are easy to maintain 3. It is very simple to adjust and prevent much of wear and are easy to repair, 4. Moving jaw can be reinforced with high tensile manganese to crush very hard rock. Figure 2) Dodge Type .