A jaw crusher is a crushing machine widely used in quarries, mining, and recycling industries. It is designed to crush hard and abrasive materials such as rocks, ores, and concrete debris into smaller sizes. This type of crusher operates by applying mechanical pressure to break large stones.

Working Principle

Jaw crushers consist of two crushing surfaces: a fixed jaw and a moving jaw. When material enters the crushing chamber, the moving jaw moves back and forth, compressing and breaking the material. The crushed material is then discharged from the bottom of the crusher, where the output size can be adjusted.

Jaw crushers are typically used as primary crushers to break large rocks into smaller pieces before further processing in secondary crushers.

Components of a Jaw Crusher

  • Feeding Opening: The area where the material is introduced.
  • Fixed Jaw: One of the crushing surfaces.
  • Moving Jaw: The surface that moves back and forth to crush the material.
  • Eccentric Shaft & Bearings: Mechanism that enables the moving jaw’s motion.
  • Adjustable Discharge Opening: Controls the size of the crushed material.
  • Conveyor System: Transports the crushed material.

Advantages

  • Durability: Can handle extremely hard materials.
  • High Efficiency: Capable of processing large volumes of material.
  • Easy Maintenance: Simple design makes it easy to maintain and repair.
  • Versatile Applications: Used in mining, construction, and recycling industries.
  • Adjustable Output Sizes: Can produce different material sizes as needed.

What Materials Can It Crush?

  • Granite
  • Basalt
  • Quartzite
  • Iron Ore
  • Limestone
  • Concrete and Demolition Waste