ʻO ka screw feeder kekahi o nā mea pono e pono ai no nā ʻoihana māmā a me nā ʻoihana kaumaha e like me ka ʻoihana kemika hou, lāʻau lapaʻau, meaʻai, metallurgy, nā mea kūkulu hale, sideline mahiʻai, a me nā mea ʻē aʻe. kaʻina hana ʻai ʻAʻole loa nā mea maka mai ka makū, ka pollution, nā mea ʻē aʻe, a me ka leakage.