Bowl, bowl liner, and hopper assemblies
The bowl is screwed inside the adjusting ring, adjustments are made by rotating the bowl anticlockwise or clockwise, according to the desired setting.
Bowl adjustment determines the gap between the bowl liner and mantle.
The adjustment cap is fixed to the top of the bowl and rubs against the joint of the protective apron fixed to the adjusting ring. This protects the bowl and the locking ring. A set of locking cylinders is located at the top of the adjusting ring. and all around it. These cylinders push the locking ring and raise the bowl to the crushing position. The bowl turns with the adjustment cap with the aid of a hydraulic motor mounted on the adjusting ring.
The hopper is placed on two pins on the upper edge of the bowl. The inside of the hopper directly feeds the crusher cavity. The shape of the bottom of the hopper has been designed so that the materials build up there, thereby forming a dead-bed that protects the hopper against the flow of feed material.
Under the hopper and on the bowl are several wedges and their screws, these wedges hold the liner firmly on the bowl.