A blue metal crushing plant transforms hard rock (typically granite or basalt) into graded aggregates for construction. In North Tamil Nadu, where quarry resources are abundant, optimized crushing lines ensure high-quality 20mm, 12mm, and M-sand outputs.
The standard setup includes:
1. Primary Jaw Crusher: PE-600×900 (Feed: 500mm, Output: 150mm)
2. Secondary Cone Crusher: HPT300 (Max feed: 235mm, CSS: 16-38mm)
3. Tertiary VSI Crusher: B-9100SE (Capacity: 250tph, RPM: 1800-2200)
4. Vibrating Screens: 3YK3070 (3 decks, Screening size: 5-70mm)
| Product | Size Range | Usage |
|---|---|---|
| G1 Aggregate | 40-20mm | Road base |
| G2 Aggregate | 20-12mm | Concrete mix |
| M-Sand | 0-4.75mm | Plastering/RCC |
Raw boulders → Primary crushing → Secondary shaping → Sand making → Screening → Stockpiling. Dust suppression systems are mandatory per TNPCB norms.
Q1: What’s the production capacity?
A: Standard plants handle 200-300TPH; modular designs allow scaling.
Q2: How to control flakiness index?
A: Cone crushers with hydraulic CSS adjustment maintain <15% flakiness.
Client required dual-grade aggregates (20mm & M-sand). Solution deployed:
– Primary: JC463 jaw crusher
– Secondary/Tertiary: Multicylinder hydraulic cone + VSI combo
Output achieved: 280TPH with <3% oversize particles.
