Working principle of plate hydraulic extrusion screen changer Single plate hydraulic extrusion screen changer realizes rapid switching of filtering station within 1 second, fast screen changing action, small change of material flow, no material leakage, high pressure resistance (up to 50MPA), large filtering area, short and straight flow path, no dead angle; Zhengzhou Batte provides plate screen changer for extruder adopts internal heating, fast heating speed, uniform temperature, small energy c