An impact crusher is a crucial machine in an artificial sand making line, as it efficiently crushes materials into fine particles suitable for sand production. Below are the key aspects of using an impact crusher in artificial sand manufacturing:
1. Role of Impact Crusher in Artificial Sand Production
– Primary/Secondary Crushing: Breaks down large rocks (limestone, granite, basalt) into smaller pieces (≤50mm) for further processing.
– Shape Optimization: Produces cubical or rounded particles, ideal for high-quality artificial sand (better than jaw or cone crushers).
– High Reduction Ratio: Efficiently reduces feed size to sand-grade material (0–5mm).
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2. Advantages of Impact Crushers for Sand Making
– Excellent Particle Shape: Produces sand with good angularity, enhancing concrete strength.
– Adjustable Output Size: By adjusting rotor speed, impact plate gap, and feed rate.
– High Efficiency & Low Wear: Modern models use wear-resistant alloys (e.g., chromium blow bars) for longer service life.
– Versatility: Handles soft to medium-hard materials (e.g., limestone, dolomite).
3. Typical Artificial Sand Making Line Setup
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Raw Material → Vibrating Feeder → Jaw Crusher (Coarse Crushing) → Impact Crusher (Fine Crushing) → Sand Maker (VSI Crusher) → Vibrating Screen → Sand Washer → Finished Artificial Sand
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– The impact crusher acts as a secondary crusher before the VSI crusher for finer shaping.
4. Key Parameters for Selection
– Feed Size: ≤500mm (depends on model).
– Output Size: 0–10mm (adjustable for sand specifications).
– Capacity: 50–500 TPH (varies by model and material hardness).
– Power Consumption: Typically 200–400 kW for mid-sized units.
5. Popular Impact Crushers for Sand Production
– Horizontal Shaft Impactors (HSI): For softer materials.
– Example: Metso NP Series, Terex CRH Series.
– Vertical Shaft Impactors (VS.jpg)
*: Best for shaping and high-quality sand.
– Example: Barmac B-Series, Sandvik CV200.
6. Maintenance Tips
– Regularly inspect blow