Oil filter Machine types and selection guide for oil mills.

Among the processes of oil production there are not many of them which are so commonly ignored, and at the same time, so important, as filtration. I have witnessed many small and mid-sized oil producers wasting not just their time but even the profit of their oil simply because they had a problem with their oil filter machine that did not keep up with the quality imposed by their buyers. You may be back behind a peanut farm in West Africa, or with soy beans in Brazil, or with coconuts in the Philippines, but whatever, one thing comes out the same, clean, clear, and stable oil wipes out competition. It is not only a technical decision to select the edible oil filter, but a strategic one. The incorrect filtering configuration leads to all sorts of issues, such as inaccurate output, expensive reprocessing and more, that spread like a wave across the operation. This is why the knowledge of the types of cooking oil filtration equipment, and correlating this equipment with the actual production requirements, is not only not an option, but also a competitive advantage.

What is an Oil Press Filter Machine?

Here is the truth about it-Not such a sweet thing as to come to a fine lot of peanuts or sunflower, and have them pressed into beautiful clear golden peanut or sunflower oil, and then see it turn cloudy, or thick, or even rancid, after lying some days or weeks in the dark. I have experienced that. This is when the filtration enters. An oil press filter machine is a device used to separate solid impurities from oil, primarily in the edible oil and other industries. Beauty is only the beginning, it is quality and shelf life and earning the trust of the customers. Great oil too without proper filter spells a lost chance.
When other raw materials such as peanuts, coconuts or rapeseeds are subjected to pressure, the resulting crude oil has a lot of suspended solids, which are the very small particles of seeds, moisture, and of fiber that do not only mar the looks, but also affect the stability of the oil as well as the taste. Prior to such oil reaching the bottle or the drum, a very crucial clean-up process is required, which is the oil filtration. There the oil filter machine comes to play.

Complete filtered pure vegetable oil
Complete filtered pure vegetable oil

Not every oil filter type applied in manufacturing edible oil is a universal device. As a matter of fact, it is one of the most significant elements of the full line of the small or mid-sized oil plant. The filtration system has made your product safer, more attractive, and heavier so as to stay on a shelf for months which is critical in hot and humid markets in Southeast Asia or at the equator in Africa where product already has a time-of-death.
The technologies involved are those that are different, and they have their own mode of treating the oil pressed. As an example, centrifugal systems employ the spinning forces to separate the solids and liquids. in vacuum filters, the low- pressure environment is used to draw impurities through the filter media. Plate and Frame- presses take oil in between sheets of fabric, then the sludge is left. And the pneumatic filterings utilize the compressed air, and direct oil through impossibly minute- filtering pathways with maximum velocity.
Every edible oil filter machine is developed after keeping in mind the diverse requirements of operations such as performance is made largely of speed and others precision. The one thing common to all of them, however, is the business of processing raw, irregular oil into a product that will look professional, and feel clean, and pass the strict trade regulations especially in export-oriented markets where the ability to see the product clearly and judge its color can break or make a sale.
Lack of the right filter is like planting a poor quality seed, you will end up with a dry plant (imperfect oil).You have took all the trouble to press the oil, how do you want poor quality to pull it down? Filter coconut in the Philippines or rapeseed in Kenya, it does not matter when you invest in the appropriate filtration system and you will notice the difference. This section is a challenge to get right because when you do, everything that rides on its coat tail of branding, storage, sales all begins to look a lot easier.

What Are the Common Types of Oil Filter Machines?

I recall how bewildering it was when I was still green in the oil pressing business when I first encountered the number of oil filter machines available over the market. Some oil filters look complicated, but they often fail in the small-scale oil pressing production environment I needed to face at that time. And that is when I just knew that not all machines in the market are designed to suit the medium-size edible oil producers. As you know, there are other possibilities such as spin-on filters, cartridge filters or even hydraulic purifiers, but it is not what is actually going on in most edible oil workshops. What is crucial to crops such as peanuts, soybeans or coconuts, though, is the selection of an oil-filter—an oil-filter that accords to the residues properties of the crop, the preferred level of absolute oil clarity, and the style of production. In general farm oil mills or small-scale edible oil processing applications, centrifugal oil filters, vacuum oil filters, pneumatic oil filters, plate and frame presses or small refiners are usually used instead of large industrial-grade filtration equipment. Depending on the type of oil you produce and your desire finish, each has a particular task to perform. We should divide them clearly and practically.

Centrifugal Oil Filter:

Centrifugal oil filter also called, as hydration centrifugal oil filter, separates oil, water and solid impurities by centrifugal force at high speed. In operation, some pre-mixed solution of saltwater (which has a controlled density) is added so that the process of hydration can take place, and such a process facilitates the process of binding the phospholipids and other colloidal particles. When industrial drum rotates, a lot of residues and moistness are flung on the walls, and clean oil is moved inward and collected.
It is not an industrial mystery, it is no fancy stuff. It is simply applied physics that is smart and mechanical when applied to oil which is edible. A centrifugal oil filter is a life changer in small and medium-scale mills which process turbid peanuts, soybean, or palm fruits oil. It strains quick, it does not need clothes or paper, and its maintenance is limited. That is actual cost-effectiveness with time, particularly in Oil pressing plant that seek to gain clarity without the overhead of the multitudinous systems.

  • High throughput suitable in continuous production
  • None of the consumables such as, cloth, paper
  • Reduced operation cost and less breakdowns

 

Vacuum Oil Filter:

The vacuum filter process of the oil follows the action of negative pressure in a closed tank in which oil is filtered through thinly porous layers of filters such as filter paper or cloth. This technology is particularly suitable for cold-pressed coconut oil, olive oil, walnut oil or almond oil because it can effectively remove trace impurities and moisture at low temperatures.
The vacuum filtration is non-equidistant and time-consuming as compared to the centrifugal one: it also takes care of maintenance of the vacuuming pump, and changes of the filter material relatively frequently. Nonetheless, its filtration accuracy has no peers and it is commonly used in low temperature filtration parts well suited with boutique cold-pressed edible oil companies.

  • Amazing removal of water and small particles
  • High quality oil of export standard
  • Applies most efficiently in low-rate/high-purity conditions

Pneumatic Oil Filter:

The pneumatic oil filter is an instrument that runs the crude oil via a multi layered pack filter driven by compressed air. The pressure forces the oil through media catching solid residues to provide the clean oil at a productive rate. The fact that it is semi-automated makes it a compromise between the high speed and simplicity of use particularly to the producers of rapeseed, corn or peanut oil who are escalating manually.
Although it is not as accurate as vacuum filters, its precision, consistency, automation and reasonable cost are what makes the relatively small-sized edible oil companies choose it highly suitable.

  • Perfect on rapeseed, maize and peanut oil
  • More efficient, reduced work-effort, quicker cycles
  • Good for factories scaling up from manual methods

Plate and Frame Filter Press:

The plate and frame filter press can be regarded as the most classical but the most accurate process of filtration of edible oil. It is composed of series of stacked filter plates and cloths in which oil is pumped on pressure. The solids trapped between the cloths and purified oil is collected outside.
This is a labor-intensive system as it involves manual work to set up and replace a cloth as the system needs to be changed frequently. Nevertheless, in the processed oil that requires a clarity and texture where market values are given to items like cold-pressed oils like camellia oils, shea butter oils or even walnut oil, it produces the clearest and cleanest oil possible.

  • Delivers the highest oil clarity among all filter types
  • Needed in high end, boutique oils
  • Requires frequently cleaning the cloth, and close supervision to do it by hand

Small-Scale Oil Refining Machine

Small Edible oil refining machine integrates the three basic functions of degumming, deacidification and decolorization in a compact structure. We use food-grade stainless steel to make the tank and flow pipes in the production process, and even install wheels on the bottom of the frame to increase its flexibility. This machine is widely used in small and medium-sized oil mills. In addition to crude oil extraction, it can also improve the color, taste and shelf life of oil.
What is it special about? Accuracy and flexibility. Although it does not filter in the strict meaning of a centrifual or vacuum filter system, it improves the quality of oil filtering than before into oil that does not fail to match the level of clarity and edibility required by the market. It is good where coconut, palm, peanut, or rapeseed oil is involved, particularly where the end is to be export-grade oil.

  • Multi-tank refining: deals with degumming, neutralization and decoloring
  • It is suitable to the smaller edible oil producers that target improved quality
  • Possessing both portability and simplicity of maneuvering, can be installed right into current oil lines
  • Ideal following filtration to attain professional level clarity

Other Large-Scale Oil Filtration Systems.

Continuous filtration is often employed on larger industrial plants such as tube centrifuges, multi stage membrane filters or even vacuum distillation. It is expensive, its automation through PLC is advanced and cannot be economically operated if its capacity is below 5 to 20 tons in a day. Suitable for large edible oil processing enterprises and brand factories, with extremely high requirements for floor space, investment budget and operator professionalism.
They are interesting but these are not produced by GQ Agri. We mainly provide small oil filters that improve the quality of freshly squeezed vegetable oil for small and medium-sized oil pressing enterprises or farm oil pressing workshops in Southeast Asia, Africa and South America. The operation is flexible and convenient, and the investment will not be too large.

Comparison Table of Common Small Oil Filters in Oil Mills
TypeFiltration FeaturesRecommended ScenariosThroughputCost Level
Centrifugal oil filterFast, no consumables, basic precisionSmall-to-medium oil mills with high sediment oils; on-site peanut or sunflower pressingMediumLow-Mid
Vacuum oil filterHigh-precision, dewateringPremium oil workshops requiring refined clarity; cold conditions or high-end oil refiningMediumMid-High
Pneumatic Oil FilterSemi-automated, balanced performanceMid-sized operations with stable air sources; efficient continuous filtering setupsMedium-HighMedium
Plate and Frame Filter PressHighest clarity, traditional approachTraditional or boutique oil producers seeking maximum purity; ideal for cold-pressed oilsLow-MidMid-High
Small-Scale Refining UnitMulti-stage degumming, deacidifying, decoloringSmall oil producers aiming for shelf-stable, export-grade oils after filtrationLow-MidMedium-High

In several years of operating peanut, soybean and coconut oil circulations, I have found out this: there is no one-fits-all filter machine. Speed? This is where centrifugal oil filter comes in. Clearness and Cleanliness? A plate and frame press is that area. However, in deep purification, moisture removal calls for vacuum filters to produce what I did not believe is possible. It occurred to me at one point that occasionally there is a need of two or even three machines in succession; first centrifugal filtering noise in bulk, then changing to vacuum filter or to plate filters to serve high-end markets. Being aware of types of filters you have is one thing. How to pick the right set of crop, volume and objectives? This is what the difference between a guess and a strategy is. Now, what is your smart way of making that decision?

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FAQ

They are more or less the same thing, but will have an application on different filtering requirements. Oil filter cloth is usable several times longer lasting and commonly applied in plate oil filter press machine where there is a large quantity of oil to be cleaned or it is contributed actual thicker oil. On the other hand, oil filter paper is disposable and more suitable to fine filters, and smaller batches or relatively light oils. The decision to use either of them lies in the type of oil, the volume of oil to filter, and the precision required during filtration.

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