The capacity of a gyratory crusher depends on several factors, including:
- Feed size
- Closed Side Setting (CSS)
- Eccentric throw
- Speed (rpm)
- Crushing chamber design
- Material properties (hardness, density, moisture)
- [Metso Outotec Gyratory Crushers Brochure](https://www.metso.com/crushers/gyratory-crushers/) (PDF available)
- [FLSmidth Fuller-Traylor Gyratory Crushers](https://www.flsmidth.com/products/gyratory-crushers) (Technical PDFs)
- [Sandvik CG800i Series](https://www.rockprocessing.sandvik/products/stationary-crushers/cg800i-gyratory-crusher/) (Includes capacity charts)
Capacity Estimation Formulas
1. Taggart’s Formula:
\[
Capacity \, (t/h) = \frac{0.1 \times CSS \times G \times RPM \times S.G.}{B}
\]
Where:
– \(CSS\) = Closed Side Setting (inches)
– \(G\) = Gape (inches)
– \(RPM\) = Speed of mantle rotation
– \(S.G.\) = Specific gravity of material
– \(B\) = Bulk density factor 
2. Empirical Rule: For hard rock, capacity ≈ (0.5–1.5 t/h per HP) 
Typical Capacities
| Crusher Size (Gape × Mantle Diameter) | Capacity Range (tph) |
|————————————–|———————|
| 42×65” (~1065×1650 mm) | 500–2000 |
| 54×75” (~1370×1900 mm) | 1200–3500 |
| 60×89” (~1525×2260 mm) | 2000–6000 |
Size & PDF Resources
For detailed calculations and manufacturer-specific data:
Would you like help with a specific calculation or application?





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