News Center

The company attaches importance to the role and training of technical talents, actively introduces foreign technical experience,and through the perfect quality management system certification, production of marketable high and new, sharp products, thus in a variety of fuel, rice, wheat, corn, and other areas of the processing machinery and equipment have domestic advantage.

Small screw oil press

September 16, 2021

The small screw oil press is a fully automatic oil pressing equipment developed earlier in China. The machine integrates heating, oil pressing, and integrated, fully automatic operation, oil roasting, oil pressing, crude oil filtering, etc., simple and convenient, speeding up the work efficient. It has many characteristics, such as large continuous processing capacity, short dynamic pressing time, 2%-5% faster oil output than the old oil press, and low labor intensity.

screw oil press

The main part of the small screw oil press is the press chamber, which is composed of the press cage and the spiral shaft rotating in the press cage. Its working process is to use the reduction of the screw lead of the screw shaft or the gradual increase of the diameter of the root circle, so that the volume of the squeezing chamber of the small screw oil press is continuously reduced to produce a squeezing effect; the squeezed grease is squeezed from the gap of the cage At the same time, the residue is pressed into crumb cakes, which are continuously discharged from the end of the oil press shaft. The squeezed oil of the small screw oil press can be broadly divided into three stages, namely, the feed (pre-compression) section, the extrusion head (oil output) section, and the cake (heavy pressure oil drain) section.

 Oil press structure

1. Principle of small screw oil press:

When the oil is advanced in the press chamber of the small screw oil press, the screw thread parameters gradually change, and the solvent in the press chamber gradually decreases. When the raw material is pushed through each section of the screw press, the resistance to The pressure also increases, so that the grease is squeezed and separated from the raw material, and the oil flows out through the oil groove of the pressing ring. After the separation, the hair material continues to be subjected to pressure and plastically deformed to form an oil cake and extruded from the cake outlet.

2. Parameters of oil output rate, cake thickness and cake residual oil rate of small screw oil press:


Weight (kg)

Oil output rate (%)

Oil production (kg)

Cake production

peanut kernel


42-52 is calculated at 48%



Big beans


13-19 is calculated at 15%





34-44 is calculated at 38%



Oil sunflower


35-48 is calculated at 41%





45-55 is calculated at 50%



 3. Advantages of small screw press manufacturers:

(1) Optimized parameters

The small screw oil press has scientific design, reasonable structure, simple operation, safety and stability. It adopts fully automatic device, and it only takes a few minutes from feeding to finished product at one time.

(2) Precision craftsmanship and excellent materials:

The small screw oil press is made of high-carbon steel through high-frequency quenching and heat-resistant treatment. It has high hardness, high strength and good wear resistance. It is suitable for continuous operation at high temperature and high pressure, and accelerates the service life of the oil press. For decades.

(3) High oil output rate and reasonable squeezing chamber:

In order to increase the pressure of the pressing chamber rapidly and make the oil fission and separation at one time, the small screw oil press adopts the principle of multi-stage propulsion and gradual pressurization, and then adopts the infrared temperature control system to automatically control the pressing temperature and moisture, so that the oil is directly softened. Activate oil molecules, stable pressing and exhausting at one time, greatly speeding up the oil yield.

(4) Unrestricted, suitable for all seasons:

The small screw oil press is not restricted by the climate and is suitable for all seasons in the north and south. Because the oil pan device adopts a heating temperature control system, it can automatically adjust the temperature of the crude oil according to the ambient temperature to achieve the effect of rapid fine filtration, so it is not affected by the seasons. , The influence of climate, can squeeze operation all year round.

(5) Fast and convenient, energy-saving fine filtration:

The small screw oil press adopts a variety of fine filtration system devices, which increase the oil filtering pressure and speed up the temperature of the crude oil. The new oil guide technology, automatic filtration, pure oil, oil filtration and pressing are carried out simultaneously, greatly speeding up It is convenient and practical, which is the ideal choice for the majority of users.

(6) One machine with multiple uses, more pressing:

Regardless of the differences in climate conditions across the country, the effect of realizing the oil output after starting up is truly realized. The small screw oil press adopts a forced feeding device, which has a uniform feeding speed and a fast pressing speed. It can more squeeze peanuts, soybeans, rapeseed, sesame, Oil sunflower, flax seed, camellia seed, cotton seed and other oil crops.

(7) Pure oil:

Vacuum filter the residue to ensure the purity of the oil and meet the sanitary and quarantine standards.

(8) High oil output rate:

Compared with the old-fashioned equipment, the normal oil output rate can be 2 to 3% higher, and every 100 catties of peanuts processed can increase by 2-6 catties on average. The annual economic benefits are very considerable.

(8) Energy saving:

The electric power is reduced by 40% for the same output. Calculated by saving 6 kilowatt-hours of electricity per hour, the daily production can save 30 yuan in electricity bills.

(9) Provincial labor:

The same output can save 60% of labor, and 1 to 2 people can organize production, which can save about 40 yuan in labor per day.

 screw oil press

4. The correct installation method of the small screw oil press:

Before installation, the newly purchased oil press should be thoroughly cleaned. Pull out the main shaft, remove the upper squeezing cage, and use emery cloth to polish the outer and inner surfaces of the snail and the screw feeder smoothly. Add lubricating grease to the entire lubrication part. The type and brand of the lubricating oil added in the gearbox should meet the requirements of the instructions.

After the round row is polished and clean, it needs to be arranged in the original position when installing the machine, and cannot be misaligned, because the arrangement position and order of the round row have a great relationship with the oil extraction performance. After the round row machine is installed, it is compressed with a compression nut, and the degree of compression should be such that the disc can creep when the oil is pressed. After the small screw oil press has been processed above, it can be fixed on the foundation with anchor bolts. When installing, the pulley of the motor should be aligned with the pulley of the small screw oil press, the position is appropriate, the direction of rotation is correct, and the tightness of the transmission belt should be adjusted properly.