A mobile crusher is a portable crushing and screening plant designed to process rocks, ores, or construction waste. Mounted on a tracked or wheeled chassis, it can be easily relocated to different sites. These systems are used in aggregate production, mining, recycling, and construction projects.

Working Principle:

  1. Feeding: Large rocks or debris are loaded into the feeder using excavators.

  2. Crushing Stages:

    • Primary Crushing: Jaw crusher or primary impact crusher reduces material to 100-300 mm.

    • Secondary Crushing: Cone crusher or secondary impact crusher crushes material to 20-100 mm.

    • Tertiary Crushing: Vertical shaft impactor (VSI) produces fine, cubical aggregates (0-32 mm).

  3. Screening: Vibrating screens classify materials into sand, gravel, or crushed stone.

  4. Transport and Stockpiling: Conveyors transfer sorted materials to storage areas.

Components:

  • Crushers (jaw, cone, impact),

  • Vibrating screens and feeders,

  • Hydraulic system and control panel,

  • Tracked/wheeled chassis and power unit (diesel or electric).

Applications:

  • Processing granite or basalt in quarries,

  • Recycling construction debris,

  • Producing aggregates for roads, dams, or concrete.

Advantages:

  • Mobility: Quick setup even on rough terrain.

  • Versatility: Processes diverse materials with interchangeable crushers.

  • Eco-Friendly: Dust suppression and noise reduction systems.

    Aggregate Definition:
    Aggregate refers to natural or artificial granular materials used in concrete, asphalt, road bases, or drainage systems. Classified by size:

    • Fine Aggregate (Sand): 0-4 mm,

    • Medium Aggregate (Gravel): 4-32 mm,

    • Coarse Aggregate (Crushed Stone): 32-64 mm.

    Aggregates enhance the mechanical strength and cost-efficiency of construction materials.

    Aggregate Production:
    Aggregate production involves crushing, screening, and classifying natural stones or recycled materials. Stages:

    1. Extraction: Rocks are extracted from quarries via blasting or cutting.

    2. Crushing: Mobile or stationary crushers reduce rocks to desired sizes.

    3. Screening: Vibrating screens separate materials by size.

    4. Washing (Optional): Removes clay and dust using washing plants.

    5. Stockpiling and Transport: Aggregates are stored and shipped to project sites.