The density of mining materials like stone and sand plays a critical role in designing efficient crushing and sand-making production lines. High-density materials require robust equipment to ensure optimal performance and longevity.
A typical production line includes:
1. Primary Jaw Crusher: Handles large stones (500-1500mm feed size), with outputs adjustable between 50-300mm.
2. Secondary Cone Crusher: Processes medium-hardness materials, producing 20-60mm aggregates.
3. Vertical Shaft Impact Crusher (VSI): Key sand-making unit with 40-80t/h capacity for cubic-shaped particles.
4. Vibrating Screens: Multi-layer designs for precise grading (3-5mm, 5-10mm, 10-20mm).
| Equipment | Model Example | Capacity (t/h) | Power (kW) |
|---|---|---|---|
| Jaw Crusher | PE600×900 | 50-160 | 75 |
| Cone Crusher | HPT300 | 120-340 | 315 |
| VSI Crusher | S8-1145 | 70-585 | 250×2 |
Granite (~2.7g/cm³) requires heavier-duty crushers than limestone (~2.5g/cm³). Sand density typically ranges 1.4-1.6g/cm³ depending on moisture content and grading.
Q: How to adjust final product gradation?
A: Modify screen mesh sizes and VSI rotor speed.
Q: Wear part replacement cycle?
A: Jaw plates last ~6 months in granite processing; VSI tips ~200 hours.
Configuration: PE750×1060 jaw + HST315 cone + 3 sets S8 VSI
Output: 350t/h machine-made sand meeting ASTM C33 standards
