The machine consists of screen body, vibration exciter, damper spring, stock storage box, water spray pipe, elastic coupler, etc.

Screen body consists of screen frame, screen plate, gas seal chamber, the whole screen body supported on four elastic damper springs. vibration exciter consists of eccentric block and bearing installed on main axis, fix on screen frame’s centre-of-gravity position by bolt, motor connect with elastic coupler to let main axis roll, eccentric block let screen body vibrate, inside of stock storage chamber, equip a flashboard which can adjust stock level, by adjusting stock level, let stock immerse at bottom of gas seal chamber to form gas sealing.