ʻO kēia mīkini kahi paʻi papa papa hoʻomau mau no ke kaomi ʻana i nā mea maka granular i loko o nā papa. Hoʻohana nui ʻia ka mīkini paʻi papa Rotary i ka ʻoihana lāʻau lapaʻau a me nā ʻoihana kemika, meaʻai, uila, plastic a me nā ʻoihana metallurgical.
Aia nā mea hoʻoponopono a me nā mea hana ma kekahi ʻaoʻao o ka mīkini, i hiki ke maʻalahi i ka hana. Hoʻokomo ʻia kahi ʻāpana hoʻomalu overload i loko o ka ʻōnaehana e pale aku i ka pōʻino o nā kuʻi a me nā mea hana, ke loaʻa ke kaumaha.
Hoʻohana ka mīkini worm gear drive i ka lubrication piha i hoʻopaʻa ʻia me ka lōʻihi o ke ola lawelawe, pale i ka pollution kea.