Umshini wokuqopha ovundlile usetshenziselwa ukwenza ama-conductor avikelayo.Lo mshini ulungele amateyipu enziwe ngezinto ezahlukene, njengephepha, i-polyester, i-NOMEX ne-mica.Njengoba sinesipiliyoni seminyaka ekwakhiweni komshini wokuthepha ovundlile nokukhiqiza, sithuthukise umshini wokuthepha wakamuva onezinhlamvu zekhwalithi ephezulu nesivinini esijikelezayo esifika ku-1000 rpm.