Jaw Crusher

• A jaw crusher’s operating system consists of a fixed jaw and a moving jaw. The moving jaw is coupled to a swing plate that oscillates while the fixed jaw is installed on a frame that is motionless. The crushing chamber, which is formed by the two jaws, is where the rocks are fed. The rocks are crushed and sized down while the moving jaw advances in the direction of the stationary jaw.

  The largest versions of jaw crushers, which come in a variety of sizes and capacities, can process thousands of tons of material each hour. To generate the necessary final product size, they are frequently used in conjunction with secondary and tertiary crushers including cone crushers and impact crushers.

  Overall, because of their simplicity, dependability, and capacity to handle a variety of materials, jaw crushers are widely employed in the mining and construction industries.

• Common Types of Jaw Crusher

  In the mining and aggregate sectors, jaw crushers are frequently used to reduce the size of materials before to processing. Jaw crushers come in a variety of designs, including:

  • 1. Blake jaw crusher: This kind of jaw crusher features a variable discharge area and a set feed area. It frequently appears in applications involving primary crushing.
  • 2. Dodge jaw crusher: The Dodge jaw crusher features a fixed feed area and a variable discharge area, similar to the Blake crusher. The Dodge jaw crusher, on the other hand, has a more intricate construction and is typically utilized for secondary or tertiary crushing applications.
  • 3. Jaw crushers of this kind can produce products of a more consistent size and can handle greater feed sizes. It frequently finds use in applications involving primary or secondary crushing.
  • 4. With an overhead eccentric jaw crusher, the swing jaw can travel up and down in a circle because it is suspended on the eccentric shaft. It frequently appears in applications involving primary crushing.
  • 5. Double toggle jaw crusher: With this kind of the crusher, the swing jaw can travel in a circle because it is pivotable at the top and bottom. It frequently finds use in applications involving primary and secondary crushing.
  • 6. Jaw crusher with a single toggle: With this model, the swing jaw pivots at the bottom while the top is kept still. It frequently appears in applications involving primary crushing.

• Parts of Jaw Crusher

  A basic crushing device for crushing hard and abrasive materials is the jaw crusher. Among the components of a jaw crusher are:

  • 1. Fixed jaw plate: The fixed jaw plate, a stationary part, creates the crusher’s crushing surface. It is affixed to the crusher’s frame and is constructed of steel.
  • 2. Swing jaw plate: In relation to the fixed jaw plate, the swing jaw plate is a moving part that swings back and forth. It is affixed to the crusher’s eccentric shaft and is composed of steel as well.
  • 3. Toggle plate: The toggle plate joins the swing jaw plate to the crusher’s frame as a safety mechanism. It is designed to break in case of an overload, protecting the crusher from damage.
  • 4. The eccentric shaft, a shaft that is propelled by the motor and is in charge of moving the swing jaw plate, is known as this.
  • 5. Bearings: The eccentric shaft and the swing jaw plate are supported by bearings. They enable friction-free operation and lessen resistance between moving elements.
  • 6. Flywheel: The eccentric shaft is connected to a large, disk-shaped component called the flywheel. It helps to smooth out the motor’s power output by storing energy during the crushing operation.
  • 7. Pitman: The pitman is a connecting rod that joins the eccentric shaft and swing jaw plate. It aids in the motor’s action and power transmission to the swing jaw plate.
  • 8. Tension rod: To alter the distance between the swing jaw plate and the fixed jaw plate, a spring-loaded rod known as the tension rod is utilized. The size of the crushed material is determined by this gap.
  • 9. Wedges: Adjusting the distance between the fixed jaw plate and the swing jaw plate is done with wedges. They are put into the tension rod system and aid in regulating the crushed material’s particle size.

  Together, these components enable the crusher to generate the desired size of end product by crushing the material supplied into it.

• Materials Suitable For Jaw Crusher In Production

  For the crushing of brittle, abrasive rocks and ores, jaw crushers are frequently employed in the mining and aggregate sectors. The following materials can be processed in a jaw crusher:

  • 1. Hard rocks: Granite, basalt, and quartzite are among the hard, abrasive rocks that jaw crushers are best equipped to handle.
  • 2. Ores: Iron, copper, and gold ores, among others, are frequently crushed using jaw crushers.
  • 3. Construction waste: Concrete, bricks, and demolition rubble can all be crushed in jaw crushers for use in the construction industry.
  • 4. Aggregates: Sand and gravel are examples of aggregates that can be crushed with jaw crushers.
  • 5. Industrial minerals: Gypsum, talc, and limestone are a few examples of industrial minerals that can be crushed with jaw crushers.
  • 6. Glass: Glass materials can also be crushed using jaw crushers.

  It is crucial to choose materials that are suitable for the particular application and operating circumstances. While choosing materials for a jaw crusher, it’s important to take into account the hardness, abrasiveness, and size of the material being crushed.

• Prices of Different Types of Jaw Crusher

  The prices of different types of jaw crushers vary depending on a number of variables, including the machine’s capacity, feed opening size, type of material being crushed, type of jaw plates being utilized, construction quality, and features and options offered.

  Following is a general breakdown of jaw crusher prices for various models:

  • 1. Jaw crusher with a basic structure: Costs range from $2,000 to $50,000.
  • 2. Pricing range for a high-efficiency jaw crusher is $5,000 to $150,000.
  • 3. About $40,000 to $150,000 is the price range for a hydraulic jaw crusher.
  • 4. Costs for portable jaw crushers range from $150,000 to $500,000.
  • 5. Pricing ranges for stationary jaw crushers range from $50,000 to $1,000,000.

  Please be aware that these costs are only broad estimates and may differ significantly based on the precise make and model of the jaw crusher as well as other elements like location and market demand. It’s best to seek advice from a reliable manufacturer or supplier for more precise pricing information.

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