6. Muchinjikwa-mhando roller kutakura maitiro:
1) Kaviri mutsara muchinjiko roller inogara imwe chete mutsara roller nzvimbo, asi yayo yekushandisa haina kuderedzwa.
2) Tora nzvimbo diki, yakaderera mubhedha kureba, nyore kushanda.
3) Low centre of gravity, diki centrifugal simba.
4) Kushandisa Teflon sechigadziro chekutakura, iyo inertia idiki, uye inogona kushandiswa pane yakaderera torque.
5) Uniform kupisa conduction, kushoma kupfeka, hupenyu hurefu.
6) Kuomarara kwepamusoro, kurongeka kwepamusoro, kushomeka kwekudedera, kunyorova kuri nyore.