... the electromotor .the sieve has first sieving, force feeding .compact structure, easy to be installed ... , fan, air hose, material pipe, dust collector& air lock ,it is mainly used to clean the air, recall the ... or stone in the machine, if yes, clean them up.10. Inspect the forward and backward ... the equipment’s conveyor system to assure no air leakage situation which will influence absorbing material. ...