North Carolina’s thriving construction sector relies heavily on aggregate crushing companies to supply high-quality crushed stone, gravel, and sand. As a professional in the crushing and sand-making equipment industry, I’ll explore key aspects of NC’s aggregate production landscape, focusing on core equipment and production line configurations.
Modern aggregate plants in NC typically employ these essential machines:
1. Primary Jaw Crushers:
– Model example: JC5460
– Feed opening: 54″ x 60″ (1372 x 1524 mm)
– Capacity: 800-1,500 tph
– Power: 400 hp (300 kW)
2. Secondary Cone Crushers:
– Model example: CH860
– Max feed size: 315 mm
– Capacity: 500-700 tph
– CSS range: 19-51 mm
3. Tertiary Impact Crushers:
– Model example: CV217
– Rotor diameter: 950 mm
– Capacity: 250-350 tph
4. Sand Making Machines:
– Model example: VSI6X1263
– Throughput: 350-450 tph
– Max feed size: 60 mm
A complete aggregate processing plant in NC might feature:
| Stage | Equipment | Output Size | Capacity |
|——-|———–|————-|———-|
| Primary | Jaw Crusher | ≤300 mm | 1,200 tph |
| Secondary | Cone Crusher | ≤50 mm | 800 tph |
| Tertiary | VSI Crusher | ≤25 mm (cubical) | 500 tph |
| Screening | Multi-deck Vibrating Screen | Multiple fractions | Matched to crushers |
Q1: What’s the optimal crusher configuration for granite processing?
*A:* For NC’s hard granite deposits, we recommend a three-stage crushing circuit with jaw-cone-VSI configuration and water spray systems for dust suppression.
Q2: How to improve product shape for premium aggregates?
*A:* Implement vertical shaft impactors (VSIs) as tertiary crushers with proper rotor speed (55-70 m/s) .
