Stone crushing and screening plants are industrial systems designed to process stones of various sizes and hardness levels into usable aggregates. These plants use crushers to break large rocks into smaller sizes, which are then classified using vibrating screens.

Unlike fixed crushing facilities, mobile crushers are highly flexible and portable crushing-screening units. They can be easily transported from one job site to another, significantly reducing transportation costs and setup time. They are widely used in construction, mining, recycling, and infrastructure projects.

Stone Crushing and Screening Process

1. Feeding Stage

Raw materials, such as rocks and minerals, are loaded into the feeding hopper using an excavator or loader. A vibrating feeder ensures a smooth flow of material into the crusher.

2. Primary Crushing

Large stones are initially reduced in size using either a jaw crusher or a primary impact crusher:

  • Jaw Crushers: Suitable for hard and abrasive stones.
  • Impact Crushers: Ideal for softer stones like limestone.

3. Secondary Crushing

Crushed materials undergo further size reduction using cone crushers or secondary impact crushers:

  • Cone Crushers: Effective for processing hard materials such as granite and basalt.
  • Secondary Impact Crushers: Ensure finer and well-shaped aggregates.

4. Screening and Separation

The crushed material is sorted into different sizes using vibrating screens to meet specific requirements.

5. Optional Processes (Washing, Recycling, Magnetic Separation)

Some systems include washing units and magnetic separators to clean the material and remove unwanted metal parts.

6. Stockpiling and Transportation

Processed aggregates are transferred via conveyor belts to stockpiles or directly loaded for transportation.