Cold hot dual-purpose spiral oil press, also known as cold press spiral oil press or fully automatic oil press, is a type of oil press equipment that can be used under both cold press and hot press working conditions.

The structural composition of a spiral oil press

The dual-purpose spiral oil press is mainly composed of three parts: the main engine, the automatic feeding device, and the vacuum filtration. The host part includes key components such as the press chamber and press screw, which work together to complete the oil pressing process.

Working principle of spiral oil press

Feeding: The oil is transported to the inlet of the oil press through a spiral automatic feeding machine.
Squeezing: The oil enters the oil press and is pushed into the squeezing chamber by the cold pressing screw. The rotation of the snail constantly pushes the embryo inward and presses it. Under the condition of high pressure in the squeezing chamber, there is significant friction between the raw material, the squeezing screw, and the squeezing chamber. The oil is subjected to increasing pressure during the pushing process, which leads to an increase in friction and a rise in temperature. After reaching a certain pressure, the proteins in the oil undergo thermal denaturation, disrupting the colloids, and the oil flows out through the gaps of the oil press strip.
Filtration: The pressed oil is filtered through a vacuum filtration system to remove impurities and improve the quality of the oil.

Scope of application of spiral oil press

The cold and hot screw oil press can press a wide range of oils, including corn, olives, camellia beans, peanuts, peeled rapeseed, walnut kernel, corn germ, rice bran, tea seeds, safflower seeds, seabuckthorn seeds, neem seeds, rubber seeds, pepper seeds, tomato seeds, watermelon seeds, grape seeds, flaxseed, evening primrose, pepper seeds, castor seeds, citrus seeds, cocoa beans, coffee beans, perilla, almonds, peach kernels, rose fruits and other vegetable oils.

Advantages and characteristics of spiral oil press

• Improving oil utilization rate: Under hot pressing conditions, oil is more easily released from the oil, which helps to increase the utilization rate and oil yield of the oil.
• Improving oil quality: Hot pressing can promote better oil flow, help reduce the moisture content and impurities in the oil, and improve the quality of the final oil product.
• Improving oil extraction efficiency: The dual-purpose spiral oil press combines the advantages of cold and hot pressing, and can flexibly switch between different working conditions, making the oil extraction process more efficient.
• Energy saving and emission reduction: Under hot pressing conditions, due to the easier release of oil, the mechanical force and power required for oil presses are relatively small, which helps to save energy and reduce emissions.
• Low temperature pressing: During pressing, the oil temperature is low, resulting in light colored, high-quality, and nutritious oil that meets international market standards.
• Advanced design: It gathers the most advanced oil pressing machinery manufacturing processes at home and abroad, all of which use national standard steel and spare parts. It has the characteristics of compact design, heavy stability, easy installation, durability, and beautiful appearance.

Application examples of spiral oil press

Cold and hot dual-purpose spiral oil presses are widely used in various oil workshops, edible oil processing plants, scientific research institutions, and other places to press various plant oils to meet the needs of different users for edible oil.