A：Sunflower oil solvent extraction uses an organic solvent extraction method to extract fats from the oil. Equipment required to extract sunflower oil: pretreatment equipment and sunflower oil solvent extraction equipment.

A：The price of small-scale sunflower oil refining equipment varies depending on the manufacturer, configuration, and scale. Generally, a set of small-scale sunflower oil refining equipment costs between $100,000 and $300,000.

A：Small scale sunflower oil processing machines range in price from $1800 to $15000. A screw sunflower oil press machine is priced between $1800 and $7500, while a small scale oil production line costs around $15,000.

A：There are two ways to make sunflower oil: physical pressing and solvent extraction. Depending on the different methods, the amount of sunflower seeds required to produce one liter of sunflower oil is approximately 2-2.5 kg.