250-400t/h Sand Making Production Line

With the rapid development of the infrastructure and real estate industries, market demand for high-quality manufactured sand has surged. Traditional small-scale sand-making equipment (e.g., 50-100 tons per hour) can no longer meet the needs of large-scale sand and gravel aggregate plants. Instead, 250-400 t/h sand-making production lines, with their high production capacity, energy efficiency, and environmental friendliness, have become the preferred choice for medium- and large-scale sand and gravel companies.

Core Advantages

1. Large-Scale Production: Meets the centralized supply demand for sand and gravel aggregates for large-scale projects (such as high-speed rail and expressways).

2. Energy Saving and Cost Reduction: Utilizes advanced crushing and sand-making processes (such as "stone-on-stone" or "stone-on-iron") to reduce per-ton energy consumption.

3. Environmental Compliance: Equipped with pulse dust removal and noise reduction systems, it meets national green mine construction standards.

Core Equipment Configuration of the Production Line

1. Crushing System (Primary + Secondary Crushing)

• Jaw Crusher (Primary Crushing): Processes large-block materials (≤1200mm), such as granite and basalt. 

• Cone Crusher/Impact Crusher (Secondary Crusher): Secondary crushing to ≤50mm, ensuring efficient feeding of the sand making machine.

2. Sand Making System (Key Link)

• Vertical Shaft Impactor (VSI): Core equipment, producing smooth, well-graded sand (fineness modulus 2.4-3.0).

• High-efficiency centrifugal rotor design: Improves crushing efficiency and reduces impeller wear (extending service life by 30%).

3. Screening and Dust Removal System

• Multi-layer vibrating screen: Accurately classifies particles (0-5mm, 5-10mm, 10-20mm, etc.).

• Pulse bag dust collector: Dust emissions ≤20mg/m³, far below national standards.

Recommended Configuration (for reference)