Big raw river stone will be fed into jaw crusher for primary crushing by vibrating feeder. 

After primary crushing, the material will be fed into secondary crushing machine such as cone crusher for secondary crushing. 

Usually, we will equip the river stone crushing & screening plant with multi-deck vibrating screen. The vibrating screen is a key equipment to sieve the crushed stones into different grades. 

The crushed stone that meet the demands will be transported to the stockpile, the other will be sent back to cone crusher for fineness crushing.