While onion grinding machines serve food processing needs, stone crushing plants are engineered for construction aggregates. This article focuses on industrial-grade crushing/screening solutions for producing high-quality sand and gravel.
Modern stone processing plants typically include:
1. Primary Jaw Crusher (90-450 kW motor, 50-1,200 tph capacity)
2. Secondary Cone Crusher (75-315 kW, 30-600 tph)
3. Tertiary Impact Crusher (VSI for shaped aggregates)
4. Vibrating Screens (3-4 deck designs)
| Model | Feed Size | Output Size | Capacity |
|---|---|---|---|
| JC5460 Jaw | 1,400mm | 150-300mm | 800 tph |
| CCH651 Cone | 275mm | 16-38mm | 580 tph |
| CV218 VSI | 50mm | Cubic sand 0-5mm | 400 tph |
Most Pakistani quarries process limestone, basalt or river gravel. Hard rock applications require manganese steel wear parts with Brinell hardness over 350HB. Mobile crushing plants are preferred for scattered deposits near Islamabad/Rawalpindi.
• Material: Margalla Hills limestone
• Configuration: Two-stage crushing + VSI shaping
• Output: 650 tph manufactured sand meeting ASTM C33
• Moisture control: Added dewatering screens
Q: What’s the minimum setup cost?
A: Compact mobile plants start around PKR 35 million
Q: How to control dust pollution?
A:Dry fog systems reduce PM
