Question: How to choose suitable hydraulic press equipment?

Oil press is a mechanical device used to extract oil from plant seeds. It is widely used in the extraction of various edible oils such as soybean oil, sunflower oil, sesame oil, peanut oil, rapeseed oil, linseed oil, palm oil, coconut oil, cottonseed oil and corn germ oil. However, different types of oil press equipment have different oil rates, energy consumption and applicable scopes. How to choose the most suitable oil press equipment has become a big problem.

Solution: In-depth understanding of the characteristics of different types of hydraulic presses

Features of hydraulic press

The hydraulic press mainly uses the hydraulic principle to inject high-pressure liquid into the oil pressure chamber, so that oil crops such as peanuts can squeeze oil from the cells under the action of high-pressure liquid. The hydraulic press is easy to operate and the oil rate can be as high as 90%; however, it is noisy and has poor adaptability to oil.

Core Features:

• Easy to operate
• High oil rate (up to 90%)
• loud noise
• Suitable for hard-shell oil crops

Features of Screw Hydraulic Press

The screw oil press mainly uses the screw extrusion principle to squeeze the oil crops under high temperature and high pressure by rotating the screw shaft and the inner wall of the pressing chamber to break the cells and squeeze out the oil. The screw oil press can work continuously, with high efficiency and strong adaptability; but its oil rate is relatively low, generally 60%-70%.

Core Features:

• Efficient and continuous work
• Highly adaptable
• Medium oil content (60%-70%)

Characteristics of leaching oil press

The extraction oil press mainly uses the principle of solvent extraction of oil. The solvent is injected and fully mixed with the oil crop, and then the solvent is recovered through evaporation, separation and other processes to obtain oil. The extraction oil press has a high oil rate, but there will be a certain amount of solvent residue, which needs further treatment.

Core Features:

• High oil rate (40%-50%)
• Solvent residues need further treatment

Key factors in choosing a hydraulic press

1. Target oil rate

The oil rates of different types of hydraulic presses vary significantly. For example, hydraulic presses have the highest oil rate, which can reach 90%; screw presses are second, with an oil rate of 60%-70%; and leaching presses have the lowest oil rate, which is 40%-50%. When choosing equipment, you first need to consider your target oil rate.

2. Energy consumption

Energy consumption is also an important consideration when choosing a hydraulic press. Hydraulic presses have the lowest energy consumption because they work on the principle of hydraulic pressure; screw presses are second because they rely on the rotation of the screw shaft; and extraction presses have the highest energy consumption because they require a large amount of solvent.

3. Scope of application

Different types of oil presses are suitable for different types of oil crops. Hydraulic oil presses are suitable for extracting thick-shelled oil crops, such as peanuts and sesame; spiral oil presses are suitable for various soft-shelled and thick-shelled oil crops; leaching oil presses are suitable for various oil crops, but attention should be paid to the problem of solvent residue.

Summarize

Choosing the right hydraulic press requires comprehensive consideration of factors such as oil rate, energy consumption, and applicable scope. Hydraulic presses are suitable for scenarios with high oil rate requirements but low energy consumption; screw presses are suitable for scenarios that require high efficiency and strong adaptability; and extraction presses are suitable for scenarios that require high oil rate but can handle solvent residues. Choosing the most suitable hydraulic press equipment according to specific needs will help improve production efficiency and product quality.