Stone crushers play a crucial role in the construction and mining industries by breaking down large rocks into smaller, usable aggregates. Whether for road construction, concrete production, or railway ballast, the crushing process involves multiple stages to achieve the desired size and quality. In this article, we explore the key stages of stone crushing.
- Primary Crushing
The primary crushing stage is where large rocks (typically up to 1 meter in size) are first broken down into smaller pieces for further processing.
Jaw Crusher (ideal for hard, abrasive rocks)
Gyratory Crusher (used in high-capacity mining operations)
Impact Crusher (for softer materials like limestone)
Output Size: 6–12 inches (150–300 mm).
- Secondary Crushing
After primary crushing, the material moves to the secondary stage to be broken into smaller and more uniform stones.
Cone Crusher (best for hard and abrasive stones)
Impact Crusher (produces well-shaped aggregates)
Output Size: 0.5–2 inches (12–50 mm).
- Tertiary Crushing
For applications requiring very fine aggregates for high-quality end products.
Vertical Shaft Impact (VSI) Crusher (produces cubical sand)
Fine-Cone Crusher (for controlled final sizing)
Output Size: 0.2–0.5 inches (5–12 mm) or smaller.
- Screening & Classification
Crushed material passes through screens to separate it into different sizes, oversized rocks are sent back for re-crushing.
Vibrating Screens (single or multi-deck)
Processing Capacity: 80-900 t/h
- Washing Processing (If Required)
Some applications require clean, dust-free aggregates, leading to a washing stage. In this stage, the sand washing machine is used to remove impurities, clay and fine dust.
Sand washing machine or spiral classifier
Processing Capacity: 20-220 t/h
Modern crushers use advanced automation and efficient designs to maximize productivity while minimizing waste. Whether for large-scale mining or small quarry operations, understanding these stages helps optimize crushing plants for better performance and profitability.
Luoyang Dahua Heavy Industry is a high-tech enterprise with research & development production, sales, and service. The mobile crushing station has been successfully applied in domestic and foreign mine crushing projects. The company has a professional R & D team, a strong after-sales team, from the equipment selection, site inspection, equipment manufacturing, installation, commissioning, delivery and other aspects for your service.