Granite is one of the most commonly used materials in high-strength concrete, road construction, and infrastructure projects. Due to its high hardness, strong abrasiveness, and dense structure, granite places strict requirements on crushing equipment and process design.
To achieve stable production, high-quality aggregates, and controlled operating costs, granite crushing requires a well-engineered crushing and screening solution, not just powerful machines.
With extensive experience in hard rock applications, LIMING Heavy Industry provides reliable granite crushing solutions for aggregate producers worldwide.
1. Characteristics of Granite in Crushing Applications
Granite is classified as a hard and abrasive rock, which presents several challenges during crushing:
High compressive strength
Strong abrasiveness causing rapid wear
Difficult-to-shape particles
High demand for stable crushing force
These characteristics make granite unsuitable for simple crushing configurations. Improper equipment selection often leads to excessive wear, low output, and high maintenance costs.
Understanding granite properties is the foundation of an efficient crushing solution.
2. Recommended Granite Crushing Process Design
Primary Crushing: Jaw Crusher
Jaw crushers are widely used as primary crushers in granite crushing due to their:
Strong crushing force
Ability to handle large feed sizes
Stable performance under heavy load
Simple and robust structure
They effectively reduce large granite blocks into sizes suitable for secondary crushing.
Secondary Crushing: Cone Crusher
For granite applications, cone crushers are the preferred choice for secondary crushing.
Advantages include:
High crushing efficiency
Excellent wear resistance
Stable output capacity
Uniform particle size distribution
Cone crushers are specifically designed to handle hard and abrasive materials like granite.
Tertiary Crushing and Shaping (Optional)
When high-quality, cubical aggregates are required, additional shaping stages may be added using:
Fine cone crushers
Vertical shaft impact crushers (VSI)
These stages improve particle shape while maintaining acceptable wear costs.
3. Screening and Closed-Circuit System
Granite crushing plants typically operate in closed-circuit configurations.
The role of screening includes:
Precise size classification
Control of final aggregate gradation
Prevention of oversized material in final products
Reduction of unnecessary re-crushing
High-performance vibrating screens ensure stable product quality and efficient plant operation.
4. Granite Crushing Solutions by Production Capacity
Medium-Capacity Granite Plants (250–500 TPH)
Typical configuration:
Jaw crusher
Cone crusher
Vibrating screen
Applications:
Commercial aggregate production
Regional construction projects
Large-Scale Granite Crushing Plants (600–1000+ TPH)
Typical configuration:
Jaw crusher
Multiple cone crushers (secondary & tertiary)
Multi-deck vibrating screens
Applications:
Infrastructure and highway projects
Large quarry operations
Continuous high-output production
These systems are designed for long-term, heavy-duty operation.
5. Wear Cost Control in Granite Crushing
Wear parts consumption is a major cost factor in granite crushing.
Effective strategies include:
Selecting appropriate liner materials
Optimizing crushing chamber design
Maintaining uniform feed distribution
Avoiding overloading and excessive reduction ratios
A properly designed system significantly reduces wear cost per ton.
6. Aggregate Quality Control in Granite Crushing
High-quality granite aggregates require:
Controlled particle shape
Consistent gradation
Minimal fines content
By combining compression crushing with proper shaping stages, granite crushing plants can meet strict construction aggregate standards.
7. LIMING Heavy Industry Granite Crushing Solutions
LIMING Heavy Industry provides complete granite crushing solutions including:
Customized process design
High-performance jaw and cone crushers
Efficient screening systems
Professional engineering support
Each solution is tailored to material conditions, capacity requirements, and final product specifications.
Conclusion
Granite crushing is a demanding application that requires robust equipment, precise process design, and professional engineering support. With the right crushing solution, aggregate producers can achieve stable output, high-quality products, and controlled operating costs.
By partnering with LIMING Heavy Industry, customers gain access to proven granite crushing solutions designed for long-term success.
