 Na mfe eruba ukpụhọde, ala ike oriri na mkpọtụ, vibratory feeder na-etinyere na-akụri ma na sieving mmepụta edoghi na oké site, na-agbari okwute, nkà mmụta banyere ígwè, ụlọ ihe, chemical, coal ọrụ. 