Indiana-based quarry equipment manufacturers specialize in designing and producing high-performance crushing, screening, and sand-making machinery for aggregate production. These machines are engineered to handle hard rock, limestone, and recycled concrete, ensuring optimal productivity for quarries and mining operations.
A typical sand and gravel production line includes:
1. Primary Jaw Crusher: Processes large rocks (e.g., 600–900mm feed size) into smaller fragments (100–200mm).
2. Secondary Cone Crusher: Further reduces material to 20–50mm with high crushing efficiency.
3. Tertiary Impact Crusher/VSI Sand Maker: Produces finely shaped aggregates (0–5mm) for high-quality concrete sand.
4. Vibrating Screens: Classifies materials into multiple grades (e.g., 0–5mm, 5–10mm, 10–20mm).

| Equipment | Key Parameters |
|---|---|
| Jaw Crusher | Feed Size: ≤900mm, Capacity: 50–800t/h |
| Cone Crusher | Max Feed: ≤300mm, Output: 20–50mm |
| VSI Crusher | Capacity: 60–500t/h, Sand Yield: Up to 70% |
A limestone quarry in Indiana upgraded its plant with a 500t/h production line featuring a jaw crusher (PE750×1060), cone crusher (HPT300), and VSI sand maker (B-9100). The output reached 480t/h of high-quality aggregates meeting ASTM C33 standards.

Q1: How to minimize dust in crushing plants?
A: Use water spray systems or install dust suppression enclosures around crushers and screens.
Q2: What’s the lifespan of crusher wear parts?
A: Manganese jaws/cones last ~3–6 months