The jaws of a crusher are designed to reduce the size of large rocks, concrete, brick and hard-core into reusable aggregates. Crushing allows construction sites to efficiently reduce the amount of waste produced from construction projects.
The size of a crusher is determined by the feed opening (usually rectangular or square) where materials to be crushed is fed into the crusher box. Jaw crushers are classed as Primary crushers as they can crush large pieces of material in one pass.
The swinging jaw of a crusher exerts an enormous amount of force onto the material being crushed by pressing it against a fixed jaw. The jaws are positioned in a V shape so when the material is crushed it drops down, wedges in the V and keeps getting crushed until it reaches the bottom of the V where it drops through an opening between the jaw plates onto the product belt. The opening at the bottom of the V can be adjusted to produce a specific size of material. Once the material is traveling along the product belt it passes under a permanent magnet which removes any metal to clean the product ready to be either stock piled or processed further.
Take a look at a jaw crusher in action…
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