Injini ephambili iqhuba i-pulley yebhanti ukuze idlulisele amandla kwidrama ngebhanti yenxantathu, nto leyo eyenza idrama ijikeleze i-axis yayo ngesantya esiphezulu kwaye ivelise intsimi yamandla e-centrifugal. Kwisantya sokondla, izinto zingena kwidrama ngepayipi yokondla kwaye zisasazwe ngokulinganayo eludongeni lwedrama. Xa ukondla kufikelela kwivolumu, umlawuli wenqanaba usebenza ukumisa ukondla. Ukuya kutsho kulwahlulo lwesantya esiphezulu. Phantsi kwesenzo sentsimi yamandla e-centrifugal, izinto eziqinileyo kwizinto ziyahamba ziye eludongeni lwedrama kwaye ekugqibeleni zihlala phantsi. Xa isigaba solwelo sicacisiwe ukuhlangabezana neemfuno, isantya sedrama siyancipha siye kwisantya se-skimmer kwaye ulwelo olucacisiweyo lukhutshwa kumatshini ngepayipi yokukhupha ulwelo. Into eqinileyo ivaleleke ngaphakathi kwidrama kwaye yenze ikhekhe lokucoca. Ekugqibeleni, idrama yehla iye kwisantya sokukhulula (30-100r/min), i-scraper iqala ukukrwela, ikhekhe lokucoca liyakrwela phantsi, isigaba esiqinileyo siyakhutshwa nge-discharge port ezantsi kwe-centrifuge, i-scraper iphakama ibuyele kwindawo yokuqala, kwaye inkqubo yomjikelo igqityiwe.