Umsebenzi wesakhelo somatshini wenziwe ngepleyiti yensimbi ephezulu, ingqiqo yesakhiwo, iqinile kwaye inokwethenjelwa, inokuqinisekisa ukuba umatshini usebenza kakuhle;
I-3 roller sammying deice yenziwe ngeerola eziphezulu kunye nezisezantsi zoxinzelelo, zinokufumana ulwazi olukumgangatho ophezulu kwaye zimanzi;
Uxinzelelo oluphezulu lwe-sammying roller lugqunywe ngerabha ephezulu eyomeleleyo kunye nekumgangatho ophezulu, inokumelana noxinzelelo olukhulu, olufunekayo kumgca wokusebenza.