When evaluating a quarry crusher, several key factors determine its rating (performance, efficiency, and suitability for specific applications). Here’s a breakdown of the critical aspects to consider:
—
1. Crusher Types & Their Ratings
Different crushers are rated based on their design, capacity, and application:
– Jaw Crusher: Rated by feed opening size (e.g., 1,000 x 800 mm) and throughput (e.g., 200–1,500 TPH).
– *Typical Use*: Primary crushing of hard rock.
– *Rating Factors*: High durability but lower reduction ratio compared to cone crushers.
– Cone Crusher: Rated by chamber type (standard/fine/short-head) and horsepower (e.g., 300–600 HP).
– *Typical Use*: Secondary/tertiary crushing for finer aggregates.
– *Rating Factors*: Higher efficiency for abrasive materials but requires precise calibration.
– Impact Crusher (HSI/VSI): Rated by rotor size (e.g., Ø1,200 mm) and capacity (e.g., 100–500 TPH).
– *Typical Use*: Soft to medium-hard rock; produces cubical-shaped output.
– *Rating Factors*: Lower wear costs but sensitive to moisture/hardness.
– Gyratory Crusher: Rated by feed opening (e.g., 60–110 inches) and capacity (3,000–10,000 TPH).
– *Typical Use*: Large-scale primary crushing in high-tonnage quarries.
—
.jpg)
2. Key Rating Metrics
– Throughput Capacity (TPH): Tons per hour the crusher can process under optimal conditions.
– Feed Size & Reduction Ratio: Maximum input size vs. output size (e.g., 6:1 for jaw crushers).
– Power Consumption (kW/HP): Efficiency in energy use per ton of material crushed.
– Wear Resistance: Lifespan of liners/mantles (e.g., manganese steel quality).
– Maintenance Require.jpg)
ts: Frequency of downtime for part replacements.
—
3. Industry Standards & Certifications
– ISO 21873: Covers mobile crushers for building/construction materials.
– CE Marking: Ensures compliance with EU safety/environment