1. The design of grizzly bar
The arrangement of grizzly bar is vertical to the moving direction of hammer head. Qualified materials pass the gap of grizzly bar, the bigger materials return from the grizzly bar are crushed again by impacting force and grinding from the hammer head. The grizzly bar and hammer head are worn seriously, which are the wearing parts of the machine. The section form of grizzly bar has three types, triangle, rectangle, and trapezoid. Grizzly bar us made of manganese steel in casting form and forging form.
2. The design of impacting plate
The function of impacting plate is that on which the materials receive the impacting force from the hammer head to be crushed and rebound the crushed materials to the crushing plate for further crushing. Therefore, the shape, structure of the plate has great influence on the crushing ratio.