The production rate of an impact crusher depends on several factors, including:
Key Factors Affecting Production Rate:
1. Feed Material Properties
– Hardness (e.g., limestone vs. granite)
– Moisture content
– Feed size (smaller feed = higher throughput)
– Abrasiveness (affects wear and downtime)
2. Crusher Specifications
– Rotor size & speed (higher RPM = finer output but may reduce capacity)
– Crushing chamber design (open vs. closed)
– Power (kW/HP) – Higher power allows crushing harder materials
3. Settings & Configuration
– Discharge gap (smaller gap = finer product but lower capacity)
– Number of breaker bars/impact hammers (more hammers = better reduction but may reduce flow)
4. Operational Conditions
– Continuous vs. intermittent feeding
– Pre-screening (removing fines before crushing boosts efficiency)
Estimated Production Rates for Different Impact Crushers
| Crusher Size/Model | Feed Size (Max) | Output Size Range | Production Rate (TPH) |
|————————|———————|———————–|—————————|
| Small Mobile Impact Crusher | 12″ (300mm) | 0.5″ – 2″ (10–50mm) | 50–150 TPH |
| Medium Horizontal Shaft Impactor | 24″ (600mm) | 1″ – 3″ (25–75mm) | 150–400 TPH |
| Large Primary Impact Crusher | 40″ (1000mm) | 3″ – 6″ (75–150mm) | 300–800 TPH |
| High-Capacity Secondary Crusher | 20″ (500mm) | 0.25″ – 1.5″ (6–40mm) | 200–600 TPH |
Tips to Maximize Production:
✔ Use a well-graded feed to avoid bridging and clogging.
✔ Optimize rotor speed for desired output size vs. throughput trade-off.
✔ Regularly maintain wear parts (hammers, liners, aprons).
✔ Pre-screen material to remove fines before crushing.
Would you like recommendations for a specific material or application?