Drum didorong ku motor ngaliwatan belts (atanapi ranté) sistem nyetir sareng laju rotasina diatur ku konvérsi frékuénsi.
Sistem nyetir diwangun ku motor speed variabel, V-beubeur, (atawa gandeng), cacing & cacing kabayang speed reducer, kabayang ranté leutik (atawa kabayang sabuk) dipasang dina aci tina speed reducer sarta kabayang ranté badag (atawa kabayang sabuk) dina kendang.
Sistim nyetir ieu boga kaunggulan gampang di operasi, low di noise, stabil sarta mulus dina ngamimitian & ngajalankeun sarta sénsitip dina pangaturan speed.
1. Worm & cacing roda speed reducer.
2. Kabayang ranté leutik.
3. Kabayang ranté badag.
4. Awak kendang.