In today's market, with the increasing demand for large-scale infrastructure projects and high-standard commercial concrete, a stable supply of high-quality, precisely sized sand and gravel aggregates is the cornerstone of project success.
For a production target of 300-500 t/h, requiring pure, high-quality 3/4-inch (approximately 19mm) and 1/2-inch (approximately 12.5mm) river pebble aggregates with excellent particle shape, a scientifically designed and rationally configured production line solution is crucial.
I. Core Project Objectives and Product Advantages
• High Output and Efficiency: A processing capacity of 300-500 tons/hour meets the continuous supply needs of large and medium-sized sand and gravel plants, ensuring substantial profits.
• Precise Product Quality: Core products are strictly controlled within the two most in-demand and widely used particle sizes of 3/4 and 1/2 inch, with cubic particle shape, reasonable gradation, and high added value.
• Raw Material Characteristics: River pebbles have high hardness and strong wear resistance, resulting in aggregates with strong compressive strength and low mud content, making them ideal raw materials for preparing high-strength concrete.
II. Core Production Line Equipment Configuration Recommendations
To achieve high output and high quality, the selection of core equipment for the production line needs to consider crushing force, wear resistance, and screening efficiency.
1. Coarse Crushing Stage (Jaw Crusher): As the leader of the production line, a large jaw crusher is used. Its powerful crushing capacity and high stability are the foundation for processing large river pebbles and providing a stable material source for subsequent processes.
2. Medium and Fine Crushing Stage (Cone Crusher): The high hardness of river pebbles dictates that a cone crusher must be selected for medium crushing. It adopts the principle of layered crushing, which not only effectively reduces wear on wear-resistant parts but also significantly improves the particle shape of the finished product, greatly increasing the yield of 3/4 and 1/2 grade products.
3. Screening Stage (Multi-layer Vibrating Screen): Configure 2-3 large multi-layer vibrating screens for efficient and precise screening. By setting up multiple layers of screens with different specifications, the target products of 3/4 and 1/2 aggregates can be accurately separated. Simultaneously, excess material is returned to the cone crusher for further crushing, forming a closed-loop cycle to ensure accurate particle size distribution.
III. Production Process Flow Overview
River pebble raw material → (Feeder) → Jaw crusher (coarse crushing) → Cone crusher (medium and fine crushing) → (Belt conveyor) → Multi-layer vibrating screen (screening) →
• Qualified products: 3/4 aggregate & 1/2 aggregate → Conveyed to the finished product stockpile.
• Oversized materials: Returned to the cone crusher for further crushing.
• Excess stone powder/small particles: Can be sold as by-products (manufactured sand), improving overall profitability.
IV. Investment Value Analysis
Investing in such a high-yield and efficient river pebble crushing production line not only means you can seize the high-end aggregate market, but also obtain long-term stable investment returns:
• Strong product competitiveness: High-quality finished aggregates command higher prices and enjoy better customer recognition.
• Controllable Operating Costs: Equipment configuration optimized for river pebbles features long-lasting wear parts, low failure rate, and significant long-term operational benefits.
• High Degree of Automation: Modern production lines enable centralized control, reducing reliance on manual labor and improving safety and efficiency.
A river pebble aggregate production line with a capacity of 300-500 t/h is a systematic and highly efficient investment. Choosing the right process route and reliable equipment configuration is key to ensuring the project achieves its production goals and maximizes economic benefits. We are committed to providing you with a complete solution from planning and design to equipment support, helping your sand and gravel business get off to a smooth start and win from the beginning.
We hope the above information meets your needs! If you have more specific equipment brand preferences or site conditions, we can further optimize the solution.
