Screw oil press | oil expeller machine for oil extraction

The screw oil press is a type of automatic oil extraction machine, which mainly squeezes out the oil through a screw. The oil screw press output is very extensive. It is not only suitable for small households but also suitable for large oil mills. The screw press oil extraction can be used to squeeze out almost all raw seeds and nuts, including peanuts, soybeans, rapeseed, sesame, and other materials. The screw press machine for oil extraction has an automatic temperature control function. The extracted oil tastes good, and the oil yield is high. We are an experienced oil mill machine manufacturer. Our screw oil extractors are very popular in the international oil press market and have been exported to many countries, like America, Australia, Germany, Iran, Mexico, Philippines, Nigeria, Kenya, etc.

screw oil extraction machine
screw oil extraction machine

Introduction of screw oil press machine

The commercial screw oil press machine can press sesame, walnuts, peanuts, olives, soybeans, cocoa beans, pine nuts, sunflower seeds, almonds, and other high oil crops.

screw oil press machine suitable raw materials
screw oil press machine suitable raw materials

This screw press oil extraction is the latest domestic small and medium-sized oil press equipment developed by the company through long-term production. It adopts multi-stage pressing and oil filtering system, including a centrifugal oil filter, or a vacuum oil filter barrel, which makes the purification of the crude edible oil fast, and realizes the low-temperature pressing.

Screw press oil extraction working principle

When connecting the power, the power unit of the screw oil extraction drives the screw on the main shaft to rotate. The screw press continues to rotate, so the raw material in the squeeze chamber continues to move forward. The farther forward, the gap between the pressing chamber and the pressing screw gradually gets smaller, and the oil density and the pressure increase. At the same time, the friction between the oil and the spare part produces a lot of heat.

The huge pressure and a lot of heat destroy the oil cells, and the oil overflows from the oil line. The spilled oil passes through the oil pan and falls onto the oil filtering cloth. Filtered by the oil cloth on the vacuum filter oil drum, it obtains relatively pure oil. After extracting by the screw oil press, it produces oil cakes, and the oil cakes are extruded at the outlet.

Industrial screw type oil expeller structure

The screw oil expeller machine mainly composes of five parts: electrical control part, heating and pressing part, adjustment part, transmission part, and vacuum oil filtering equipment.

The electrical control part is mainly used to control the operation of the entire oil expeller machine.

commercial screw oil press machine control panel
commercial screw oil presser machine control panel

The heating and pressing part composes of heaters, squeezers, and body devices.

The adjusting part is composed of adjusting screw, adjusting nut, handle, lock nut, and so on. This part can be used to adjust the pressing pressure and the thickness of the pressed oil cake.

screw oil press detail
screw oil press detail

The transmission part composes of the main shaft, a gear box, a pulley, and a motor wheel.

The vacuum oil filtering system is mainly used to filter impurities in the oil. The system is mainly composed of a vacuum pump, oil filtering cloth, barrel, pipeline, etc.

oil filter
oil filter

Feature of screw oil press

1.High oil extraction ratio. Low residual oil ratio in the dry oil cakes. The screw oil extractor can squeeze out the oil in the raw material to the greatest extent. The automatic oil press improves the oil yield.

2. High-efficient production. The vacuum oil filtering system ensures that the oil pressing and filtering at the same time, which improves the production efficiency of oil squeezing.

3. Easy to operate and reasonable design.

4. Wide application. The screw oil pressing machine is a combination of cold pressing and hot pressing. Therefore, it widely applies in the extraction of various raw materials.

5. Diverse outputs are available. There is a variety of machines with different outputs to choose from. The oil press machinery reduces the cost and meets the individual’s demand for oil squeezing.

screw oil press machine
screw oil press machine

Technical Parameter

ModelSL-60ASL-70ASL-80ASL-100ASL-125ASL-150A
Screw diameter60mm70mm80mm100mm125mm150mm
Capacity(kg/h)30-6050-80125-150200-250250-350500-600
Motor2.2kw5.5kw5.5kw7.5kw15kw22kw
weight (kg)220350700110014001700
Size(mm)1280*630*13701480*630*15701480*630*15702200*810*18502200*1650*17502600*2100*1730

Automatic oil expeller work process

  1. First, according to different raw materials, selectively shell the raw materials;
  2. Before starting up, check whether the various parts of the machine are loose. Rotate the pulley by hand to avoid abnormal noise. Then add mechanical oil to the gearbox.
  3. Adjust the screw to make the conical surface of the squeezing screw press against the conical surface of the cake outlet. Adjust the screw clockwise by 2~3mm, and then tighten the nut.
  4. Connect the power supply and turn on the power switch of the screw press.
  5. Adjust the temperature controller through the electrical control panel of the oil expeller machine. Adjust the suitable temperature (150~200 Celsius degrees) according to the oil raw material characteristics. When the screw oil press machine temperature reaches the set temperature, the green indicator light is off and the red indicator light is on.
  6. Rotate the main unit button, and the main unit starts to run. The rotation direction of the screw shaft should be counterclockwise.
  7. Put the processed material at the inlet of the screw oil expeller extraction, and the screw press pushes the material forward and squeezes out the oil.
  8. When the squeezed oil flows to the oil filter barrel, turn on the filter switch of the oil filter barrel. After completing the oil filtering, turn on the switch under the oil filter barrel to release the filtered oil.

How to maintain the oil screw pressing machinery?

screw oil press stocks
  1. After the machine has run for 50 hours, check whether there is still lubricating oil in the oil cup on the gearbox. Add oil to the screw hole of the screw bearing before pressing oil each time. Dry grinding is strictly prohibited.
  2. After each oil extraction, clean up the remaining oil cakes in the oil screw press machine. And remove the dust and grease on the surface of the machine.
  3. When the oil extraction or the cake is abnormal, take out the screw shaft to check the wear of screw, strip and cake ring, and replace the worn parts in time.
  4. If you do not need to use the machine for a long time, clean the screw oil press and place it in a dry and ventilated place. Take out the pressing screws, pressing strips, and cake rings. Then, clean and grease them, and place them in a cool place.

Video of screw oil expeller

Other application

Peanut oil press

Cashew nutshell liquid machine

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