Stone Removal Machine The TQSF type sand removal machine uses the combined effect of sieving and airflow to perform grading and stone removal. It is mainly used for the first cleaning, impurity removal and stone removal of activated carbon particles. It can also be used for cleaning and selection of food, feed, chemical industry, and medical treatment. . The machine has the characteristics of high production efficiency, convenient maintenance, no dust, low noise, and good cleaning effect....