Sand Washing Machine - Crushers,Crusher Machines,Jaw Crusher .Working Principle. Feature. Technical Parameter. Sand washing machine is the main sand washing equipment developed and produced for cooperating sand.sand washing machine principles,GOSAG Compact Sand Washing Units - Allgaier MogensenSand washing machines are designed to obtain sands that are demanded by . tank to the automatic regulation of principle tank level by a buoy's system. 5.