The statements on the following slides were taken from a lecture given at the Illinois Association of Aggregate Producers in 2003, presented by a major cone crusher manufacturer on how to make good particle shape with their cone crushers.

• “A smaller reduction ratio produces better particle shape”.

• 100% Pass. 100% Pass.

• Feed Size Product Size Reduction Ratio Shape

• 4.0” 0.5” 8:1 Poor

• 2.0” 0.5” 4:1 Better

• 1.0” 0.5” 2:1 Best