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The jaw plate or jaw dies is the main wear part of the jaw crusher. A set of jaw plates usually consists of two parts: the movable jaw plate and the fixed jaw plate. During the operation of the jaw crusher, the movable jaw plate attaches to the movable jaw to perform a complex swinging motion, forming an angle with the fixed jaw plate to squeeze the stone. The crushing cavity, composed of the movable jaw and the fixed jaw, simulates the movement of animal jaws, enabling the jaw crusher to complete the crushing operation of materials.
Depending on the model of the jaw crusher, there are various sizes of jaw plate available. The jaw plates are made of new high manganese steel, ultra-high manganese steel, super strong high manganese steel, and other materials, suitable for jaw crushers of various specifications.
The jaw plate is the most consumed parts in the use of crushers. Therefore, it is necessary to control quality. In other words, the quality of a jaw crusher is actually determined by the service life of the jaw plate. The jaw crusher casing is generally not easily damaged.
The jaw crusher consists of a movable jaw and a fixed jaw, which together form the working cavity. The movable jaw and the fixed jaw bear tremendous crushing force and friction from the materials, making them prone to wear. In order to protect the jaw plate, wear-resistant liners are usually installed on the surfaces of the movable jaw and the fixed jaw, which are also called crushing plates. The surface of the crushing plate is usually made into a tooth shape, with a tooth peak angle of 90° to 120°, which is determined by the nature and size of the crushed material. When crushing large pieces of material, the angle should be larger, while for crushing small pieces of material, the angle can be smaller. The size of the tooth pitch depends on the particle size of the product and is usually set to be approximately equal to the width of the discharge outlet. The ratio of tooth height to tooth pitch can be taken as 1/2 to 1/3.
We are one leading manufacturer of mining machinery in China with main products of jaw crusher, impact crusher, cone crusher, double roller crusher, hammer crusher, ball mill, vibrating feeder, vibrating screen, sand making machine and sand washer, belt conveyor, magnetic separator, brick making machine,etc.
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