Table of Contents
Superior MK II Gyratory Crusher Capacities
The Superior MK II gyratory crusher series, developed by Metso (formerly Nordberg), represents a robust line of primary crushing equipment designed for high-capacity applications in mining and aggregate operations. These crushers are engineered to handle large feed sizes and deliver consistent throughput in demanding environments.
Capacity Specifications
The capacity of a Superior MK II gyratory crusher depends on multiple factors, including: .jpg)
- Feed size distribution – Larger feed openings allow for higher throughput.
- Closed Side Setting (CSS) – Adjusting the CSS influences the product size and volumetric capacity.
- Eccentric throw – A greater throw increases crushing force but may reduce throughput slightly.
- Material characteristics – Hardness, abrasiveness, and moisture content affect performance.
Typical Capacities (Based on Historical Data)
| Model | Feed Opening (mm) | Max Capacity (mtph)* | Power (kW) |
|---|---|---|---|
| 42-65 MK II | 1065 | 1,500 – 2,400 | 300 |
| 50-65 MK II | 1270 | 2,000 – 3,500 | 450 |
| 54-75 MK II | 1370 | 3,000 – 5,000 | 600 |
| 62-75 MK II | 1575 | 4,500 – 7,500 | 750 |
*Metric tons per hour (mtph) based on standard hard rock applications with a bulk density of ~1.6 t/m³. .jpg)
Performance Considerations
- Throughput Optimization – The MK II design incorporates a non-choking concave profile to maximize feed acceptance and reduce bridging risks.
- Power Efficiency – The deep crushing chamber and optimized mantle design contribute to energy-efficient operation compared to earlier gyratory models.
- Maintenance & Wear Life – High-alloy steel components extend service intervals, particularly in abrasive ore applications.
Industry Applications
Superior MK II crushers have been deployed in:
- Large-scale copper and iron ore mines for primary crushing duties.
- Quarry operations processing granite and basalt aggregates.
- High-tonnage mineral processing plants requiring reliable coarse reduction.
For precise capacity estimates, site-specific testing or simulation with material characteristics is recommended due to variations in feed gradation and operational conditions.