Crushing and Screening Plants for Hard Rocks are comprehensive industrial facilities designed to reduce the size of extremely tough and durable rocks and ores, and to classify them according to specific sizes. These plants are essential in making hard materials such as basalt, granite, quartzite, gabbro, serpentine, chromite, and iron ore usable in mining and construction sectors.

Main Components of the Facility:

  1. Feeding Unit: Directs raw material from the mine to the first processing unit. Vibrating or belt feeders are commonly used.

  2. Jaw Crusher (Primary Crusher): Performs the first crushing step to break large rocks into smaller pieces.

  3. Cone / Impact Crushers (Secondary & Tertiary Crushers): Used for further size reduction. Cone crushers are especially efficient for hard stones.

  4. Vibrating Screens: Separate materials of various sizes and ensure the output meets desired dimensions.

  5. Conveyor Systems: Transport materials from one unit to another, ensuring efficiency and continuity.

  6. Dust Collection and Filtration Systems: Capture dust generated during crushing to protect the environment.

Key Considerations in Plant Installation:

  • Geological structure and hardness of the rock

  • Durability and efficiency of the machinery

  • Energy consumption and maintenance costs

  • Environmental impact assessments and legal regulations

Application Areas:

  • Road construction and railway ballast production

  • Aggregates for concrete and asphalt

  • Pre-processing in metallurgical and chemical industries

These plants require significant investment but offer high productivity and quality in the long term. They form the foundational step of processing hard rock into usable material.