Jaw crushers are compression type crushers that feature a moving jaw and fixed jaw in the shape of a V. The jaw that moves, compresses materials such as stones against a fixed jaw. This motion crushes the materials to a desirable size. The crushed materials then exit the crusher out of the bottom, called a discharge opening. The discharge opening size can be changed, and this controls the size of the products that the crusher produces.
What Is A Jaw Crusher Used For?
Jaw crushers are commonly used for the primary-stage of reducing materials in many applications, including gravel and sand, rock quarries, demolition, and construction recycling, mining, chemical, and metallurgy industries, and construction aggregates.
The flywheel, pitman, driving motor, eccentric shaft, and toggle plates generate a crushing action, along with providing the energy that is required to break materials.
Jaw crushers are available in different sizes and shapes to match up to different types of crushing needs. The jaw crusher comes in two main types:
– Single-Toggle Jaw Crusher
– Double-Toggle Jaw Crusher
The Single-Toggle Jaw Crusher
The single-toggle jaw crusher that also goes by the name of an overhead eccentric crusher, has an eccentric shaft positioned above the jaw crusher. With these jaw crushers, the eccentric shaft is attached or built-into the swing-jaw plate. As the flywheel rotates, the plate moves down and up. The swing plate pivots from the bottom, which causes the jaw crusher to create an arc-like direction. The materials are crushed once the moving jaw compresses the materials into a fixed plate.
The Double-Toggle Jaw Crusher
In double-toggle jaw crushers, the crusher that moves operates with an eccentric shaft, which moves the rear and front toggles down and up. Each revolution of the shaft is what causes the crusher jaw that moves to close, on a downstroke, followed by an opening on each upstroke.
This toggle is secured into place by a spring-loaded tension rod. The eccentric located behind the jaw that swings stops damages to the eccentric since the bearings and shaft experience no shock loading as the materials are crushed.
The jaw of the crusher moves in a similar way to a door that swings, hinged from above, and is pulled closed and open from the bottom. One of the toggle plates is positioned along the bottom part of the eccentric-arm and swinging jaw. The other toggle-plate is found directly on the other side of this eccentric arm. This arm moves to a point that is fixed from the back part of the frame of the jaw crusher.
What Is A Jaw Crusher Used For – Final Thoughts
The jaw crusher is an essential piece of equipment in all ore and mining industries. The jaw crushers provide a way for mine engineers and workers to compact and crush large chunks of hard materials in an efficient and safe manner. Due to its robust design and long-service life, downtime is minimized while costs are drastically reduced. If you are looking for high-quality operating efficiency when it comes to reducing the size of large rocks, the jaw crushers are the ultimate choice.