E like me ka mana o ka mana o ka conveyor, ua māhele ʻia ka pulley drive i ʻelua ʻano: Smooth surface and rubber coated surface pulley.Ma lalo o ke kūlana o ka mana haʻahaʻa a me ka wela liʻiliʻi liʻiliʻi, hiki ke hoʻohana ʻia ka pulley maʻemaʻe.I ka hihia o ka humid environment, ka mana kiʻekiʻe a me ka paheʻe maʻalahi, pono e hoʻohana i kahi pulley i uhi ʻia.