1.
2. Imiterere itunguranye: Imiterere yigenga yigenga irerekana uburyo bwo kurangiza no guhuriza hamwe ibicuruzwa byarangiye;
3. Imiterere yimiterere: Impeta ipfa ntabwo izunguruka, kandi igiti kinini cyuzuye uruziga ruzunguruka, kikagira uruhare rwa centrifugal kugaburira centrarm kimwe.
4. Sisitemu yo hasi: Inteko ya Roller ifite ibikoresho bya peteroli yikora, ishobora gukoreshwa hamwe namavuta muminsi 2-3;
5.