Project Overview:
Core Material: Limestone.
Material Characteristics:
- Medium Hardness: Mohs hardness of 3–4, compressive strength typically below 150 MPa, making it ideal for impact crushing principles
- Low Abrasiveness: Minimal wear on blow bars and liners, maximizing the advantages of impact crushers
Feed Input & Output:
- Feed Size: Blasted raw ore with a maximum size of ≤650 mm.
- Final Products: Flexible production of high-quality aggregates, including 0–5 mm (premium manufactured sand), 5–10 mm, 10–20 mm, and 16–31.5 mm
This project adopts an advanced “Jaw Crusher + Dual Impact Crushers in Parallel” closed-circuit design, featuring two screens in parallel. The core concept is graded processing and load distribution to maximize efficiency. Through meticulous flow design, it achieves the optimal balance among capacity, cost, product quality, and operational stability—making it an ideal choice for long-term ROI and market competitiveness.
Equipment Configuration Plan
The key advantage of this design lies in “task-specific optimization.” By screening and classifying materials based on crushability, the two impact crushers separately process the particle sizes best suited to their crushing chambers. This avoids energy waste from feeding small materials into large chambers and prevents oversized materials from damaging fine-crushing zones, ensuring high capacity while significantly improving efficiency and reducing energy consumption per unit
Advantages:
- Maximized Efficiency & Stability:
- Dual impact crushers operate as parallel secondary/tertiary lines. If one requires maintenance, the other can continue at reduced capacity, minimizing downtime risks
- Balanced load distribution prevents overloading, clogging, or efficiency drops, consistently exceeding the 300 TPH target
- Reduced Energy & Wear Costs:
- “Right material for the right crusher” ensures optimal operating conditions, lowering energy use compared to single large crushers or cone crusher solutions
- Precise material分流 reduces无效blow bar impacts and over-crushing, extending service life and cutting maintenance costs
- Exceptional Product Quality:
- Impact crushing inherently produces cubical particles. The parallel design allows finer control over crushing effects, yielding rounded aggregates with low flakiness and ideal gradation for high market value
- Operational Flexibility:
- Adjustable discharge gaps and screen meshes enable quick shifts in output ratios (e.g., sand vs. stone) to meet market demands
Client Testimonial
“The smartest move was using two parallel impact crushers. Previously, a single large crusher could hit 300 TPH, but the load was excessive—blow bars wore out fast, and blockages were frequent. Now, big rocks go to the primary crusher, smaller ones to the secondary, each working smoothly. Output steadily exceeds 300 TPH, while power and maintenance costs dropped. The aggregate shape is first-class!”
