comparison of crusher model cg870 and cg660

Comparison of Crusher Models CG870 and CG660

The CG870 and CG660 are two cone crusher models designed for different crushing applications, each offering distinct features in terms of capacity, power, and operational efficiency. Below is a detailed comparison based on available technical specifications and industry data.

1. Capacity and Throughput

• CG870: This model is a high-capacity crusher designed for large-scale operations. It typically handles feed sizes up to 500 mm (20 inches) and delivers a throughput ranging from 2,000 to 8,000 metric tons per hour (tph), depending on the material type and crushing settings.
• CG660: A mid-range crusher, the CG660 is suited for medium-duty applications. It processes feed sizes up to 300 mm (12 inches) with a throughput capacity between 1,000 and 4,000 tph under optimal conditions.

2. Power and Drive System

• CG870: Equipped with a high-power motor ranging from 600 kW to 800 kW (800–1,070 hp), this model ensures efficient crushing in demanding environments such as mining or large quarry operations.
• CG660: With a motor output between 315 kW and 500 kW (420–670 hp), it provides sufficient power for smaller-scale aggregates production or secondary crushing stages.

3. Size and Weight

• CG870: Due to its larger capacity, this model is heavier, weighing approximately 70–80 metric tons depending on configuration. Its dimensions make it suitable for stationary installations rather than mobile setups.
• CG660: Weighing around 30–40 metric tons, it is more compact and can be adapted for semi-mobile or modular crushing plants where space constraints exist.

4. Applications

• CG870: Ideal for primary crushing in large mines or high-production quarries processing hard rock like granite or basalt. Its robust design minimizes downtime in continuous operations.
• CG660: Better suited for secondary or tertiary crushing in smaller quarries or recycling applications where flexibility and moderate production rates are required.

5. Maintenance & Operating Costs

• The CG870’s larger components may require higher maintenance costs due to wear parts replacement frequency in heavy-duty use but offer longer service life per ton crushed compared to smaller units when properly maintained.
• The CG660 has lower operational costs due to its smaller size but may need more frequent maintenance if subjected to abrasive materials without proper liner optimization.

Conclusion

Choosing between the CG870 and CG660 depends on production requirements: the former excels in high-tonnage operations requiring maximum output, while the latter provides cost-effective performance for medium-scale projects with space or budget limitations. Both models incorporate modern crushing technology but cater to distinctly different market segments within mineral processing industries.

(Note: Specifications are based on general industry standards; exact figures may vary by manufacturer configuration.)