ʻAʻole hiki ke hoʻohaʻahaʻa ʻia ka mana o ka mea kanu asphalt mixing. He hopena nui nō hoʻi ia i ka hoʻomehana wela o ka pipeline asphalt. ʻO kēia no ka mea, pili loa nā hōʻailona hana koʻikoʻi o ka asphalt, e like me ka viscosity a me ka sulfur content, i ke kahua hui asphalt. ʻO ka ʻōlelo maʻamau, ʻoi aku ka nui o ka viscosity, ʻoi aku ka maikaʻi o ka hopena atomization, e pili pono ana i ka pono hana a me ka hoʻohana wahie. Ke piʻi aʻe ka mahana, e emi mālie ka viscosity o ka aila kaumaha, no laila pono e hoʻomehana ʻia ka ʻaila kiʻekiʻe no ka lawe ʻana a me ka atomization.

No laila, ma waho aʻe o ka hoʻomaopopo ʻana i kāna mau hōʻailona maʻamau, pono nō hoʻi e hoʻokele i kāna pihi viscosity-mahana i ke koho ʻana iā ia e hōʻoia i ka hiki i ka hoʻomehana ke hiki i ka asphalt i ka viscosity i koi ʻia e ka mea puhi ma mua o ka atomization. I ka nānā ʻana i ka ʻōnaehana asphalt circulation, ua ʻike ʻia ʻaʻole i hoʻokō ka mahana o ka pipeline asphalt i nā koi, e hoʻoikaika ai ka asphalt i ka pipeline.
ʻO nā kumu nui penei:
1. He haʻahaʻa loa ka pahu aila kiʻekiʻe o ka ʻaila wela, e hopena i ka pōʻino o ka ʻaila wela;
2. He eccentric ka paipu o loko o ka paipu papalua
3. He lōʻihi loa ka pipeline aila wela;
4. ʻAʻole i lawe ka pipeline aila wela i nā ana insulation kūpono, etc. ʻO kēia nā kumu nui e pili ana i ka hopena wela.