High quality mobile factory counter flow wood chip screen machine price for sell working principle::
1. Input of raw materials    Raw materials inputted through the entrance of the hopper will be pushed into the trommel screen by the strong water pressure of the shower equipped in the hopper.    

2. Selection and cleaning of raw materials Raw materials of the trommel screen will be cleaned and selected by the rotation of trommel screen and by watering of the shower inside, run into the gold dust separate panel.  

3. Collecting of gold dust separated Soil and sands with lighter specific gravity will flow away but gold dusts with greater specific gravity will be staying in the gathering mat to be collected.