During my communication with many friends who are engaged in agriculture, I found a problem: many people don’t even know the types of oil presses! This is terrible for those who plan to engage in agricultural oil pressing business. Have you ever thought about how different types of oil presses differ? There are many types of oil presses, but not all types of oil presses can adapt to all crops or scales. Each oil press type has its functional highlights and specific application directions. Since you are lucky enough to be here, let me give you a quick reference of the main types of oil presses, their ideal applications, and how pressing technology, automation and power affect actual results. I hope that all visitors and friends will no longer be troubled by technical terms after reading this article, but will be closer to making a confident and wise investment. Are you ready to face the reality?

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Before we get into the different types, let’s clarify what exactly a commercial oil press machine is. A commercial oil press machine is the heart and soul of any oil extraction operation. These machines are designed for places like oil refineries, agricultural cooperatives, and small food processing plants. They’re built to handle large amounts of oil-containing materials, from common seed oils like peanut, soybean, and sunflower seeds to other ingredients like palm kernel or rapeseed.

If you’ve ever compared a home oil press to a commercial one, you’d notice right away that the latter is on another level. These heavy-duty machines can handle anywhere between 10 and 500 kilograms of oil production each hour, sometimes even more with industrial versions, and they’re made to keep going without a break. A lot of them come equipped with automated systems that make things easier—think seed feeding, pressing, and even filtering the oil straight out of the machine. Whether you’re a small-scale farmer, part of a cooperative, or just someone looking to produce vegetable oil efficiently while also getting valuable press cake, these tools are pretty much indispensable.
Now that we have a good idea of what these machines are, let’s look at how they are categorized to help you find the right Oil Press Machine Type.

To be honest, it’s quite overwhelming trying to know all types of oil press machines all at once, right? I am here to help. Let’s break down the main Types of oil press machines by looking at how they actually extract the oil, what kind of power they use, and how automatic they are. Understanding these differences will make it much easier to know which one is the perfect Oilseed Oil Press Machine for your specific oil production goals, whether you’re handling common seeds or something more niche like grape seed.

Classification by Oil Pressing Method

The very heart of an Oil Press Machine Type lies in how it gets the oil out. This method doesn’t just affect efficiency; it also plays a huge role in the quality of the seeds oil and the types of seeds the machine is best suited for. You’ll mainly come across hydraulic and screw presses. Beyond that, there’s the important distinction between cold pressing and hot pressing, especially if you’re considering a commercial cold press oil machine.

Hydraulic Oil Press:

They rely on liquid static pressure, kind of like a firm, unrelenting grip that gets the job done. These machines shine when working with oil-rich seeds like sesame, walnuts, or olives. What I really appreciate is how they keep things cool during the process, which means the oil retains its natural taste and nutrients—perfect for top-notch cold-pressed oil. Plus, the oil comes out super clear with hardly any gunk. That said, they’re more suited for smaller batches and don’t churn out as much as screw presses do. A lot of commercial cold press oil machines, by the way, are built on hydraulic tech.

Cold Pressing Method:

Cold pressed means often maintaining temperatures below 60°C (140°F), the oil is extracted without much heat added. This approach is all about maintaining the natural goodness—the flavours, smells, and delicate elements including antioxidants and vitamins present in fresh pressed oil. It’s ideal for producing premium oil like olive and avocado(Extra virgin olive oil should be kept below 27°C). While the production capacity might be lower and it might take a bit more effort (sometimes requiring multiple presses), the quality of cold press oil is often superior. Many look for a dedicated commercial cold press oil machine for this.

Hot Pressing Method:

Hot pressing is the process of heating the seeds to temperatures of about 120°C (248°F) before or during extraction. This pretreatment (such as roasting or steaming) helps break down the cell walls, making it easier to extract the oil and, as a result, increasing the yield. The oil darkens in colour and tastes more richly, nutty.  Particularly in large-scale oil production, this process is extensively used for peanut and rapeseed oils.  This approach is very effective in optimising yields even if certain heat-sensitive nutrients may be lowered.

Therefore, understanding these pressing methods will help us identify different oil press models. And when choosing an oil press for your oil pressing business, you will know which equipment is suitable for business development and local crops. For more professional guidance on buying an oil press, you can go to our other blog to learn more.

There is more than one power source for oil press machines. Manufacturers introduced models that can run on electricity, diesel or both, depending on where and how the oil press machine will work. It is also worth noting that power source also affects cost and maintenance.

Electric Motor Driven:

The most common power method. These machines use an electric motor to power the pressing mechanism, whether it’s a screw or a hydraulic pump. They are convenient, generally quieter than engine-driven models (which is great for indoor oil mills or small factories), and can be quite energy-efficient if chosen correctly. The main requirement, of course, is a stable and reliable electricity supply.

The level of automation in the type of oil press machine will have a significant impact on the amount of manual labor required, potential production capacity, and initial investment costs. From fully manual machine to highly sophisticated and fully automated systems, this wide range of automation levels cover most oil production scales and needs:

Manual:

Manual presses are typically the most basic option. As the name suggests, they require significant manual labor for tasks such as feeding the seeds, applying pressure (typically using a hand crank or lever), and collecting the oil and press cake. Due to their low output, they are only used for testing, laboratories, and individual households. The advantage of these machines is that the initial cost is very low, but they are not suitable for large-scale commercial use.

Semi-Automatic:

A step up from manual machines, semi-automatic presses are part automatic but still require manual labor in other processes. For example, a semi-automatic seed oil press may feature automatic feeding or temperature control, but the press cake discharge or filtration process may still need to be handled manually. For those managing small or medium oil mills or even cooperatives, this option makes a lot of sense. It takes some of the hard labor off your hands without the need to splurge on a full-blown automated system.

Fully Automatic:

If you aim for higher efficiency and large scale production, go for this type of machine. A fully automatic Oilseed Oil Press Machine integrates most, if not all, stages of the process – from conveying the raw material into the press, the pressing itself, separating the oil and press cake, and often even initial filtering of the fresh pressed oil. These systems need little human effort, can operate non-stop for hours, and have smart controls for heat, pressure, and speed. They ensure steady oil quality and better output, perfect for big oil mills and small plants aiming to boost production. But they are also the most expensive option because they can really do a lot of things.

To effectively understand commercial oil press machines, consider classifications such as the pressing method, power source, and level of automation. This foundational knowledge will help you identify the type that best aligns with specific needs for efficient oil extraction.

Still confused? Take a look at this quick comparison table to get a clearer view and pick the right option for various needs. It breaks down the different kinds of commercial oil press machines we’ve discussed, highlighting the raw materials they work best with, how much they can produce, the power they need, and roughly how much money they need to invest. This ought to provide you with a quick overview of how each type of oil press compares.

This table provides a broad overview, but keep in mind that different manufacturers and models can have quite different price points, features, and precise production capacities for commercial oil press machines. Always verify the details of the oilseed press machine you are thinking about buying.

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Still a bit fuzzy on the different types of Oil Press Machines, or are there some questions nagging at you? That’s totally fine! Deciding on the right Oil Press Machine is no small feat for a solo agricultural entrepreneur, a small farm, a cooperative, or an oil mill. It’s the kind of investment that’ll shape how your oil production plays out for years to come.

We know it’s tricky to match what you need—whether it’s producing a specific seed oil (think standard vegetable oil or something unique like cold-pressed grape seed oil), hitting a certain output level, or sticking to a budget—with the ideal Commercial Oil Press.
If you’re just dipping your toes in with a mini commercial oil press machine or aiming for a heavier-duty option to support your growing small factory, getting some expert input can really clear things up. We’re happy to walk you through the ins and outs of each Oil Press Type, helping you find a machine that suits your plans and doesn’t break the bank, all while ensuring a fair price for your commercial oil press machine.
Feel free to drop us a line! We’re eager to give you personalized tips to pick the right gear and ramp up your oil production.

Oil Extraction Machine Complete Guide

From peanut butter and coconut oil to CBD products and fragrant soaps, plant oil extraction is the process behind many valuable items derived from agricultural products. Creating those products calls for an oil extraction machine. Oil extraction machines are a versatile type of machinery, helping agricultural businesses do more with their yields. These expeller pressers are typically based on a screw system, putting heat, friction and pressure to work as they squeeze oils out of different materials.

Let's take a closer look at how oil extraction machines work, how they're used and what they're made of.

In This Article

• What Is an Oil Extraction Machine?
• Uses of an Oil Extraction Machine
• Parts of an Oil Extraction Machine
• Elastomeric Components for Oil Extraction Machines

What Is an Oil Extraction Machine?

An oil extraction machine, also called an oil press or expeller, uses high pressure and heat to “squeeze” the oils out of a plant product. Those products — including seeds, nuts, vegetables, fruits and leafy plants — release their oils through this mechanical process, which is often done without adding any chemicals.

Oil extraction machines typically use a screw press. Some products, like groundnuts, need to be shelled or peeled before moving through the screw press. The peeling process might use powerful centrifugal forces or airflow from a fan to separate lightweight shells from the heavier nut.

After peeling, the product is fed into the screw system, which comprises a screw inside a high-pressure cylindrical chamber. The material moves through the screw, generating friction and heat. While the high pressure squeezes out much of the oil, the heat contributes, too. It can denature some of the proteins in the product and increase the viscosity of the oil for easier movement.

As the oil is pressed out, it seeps through a screen or filter to ensure that no solids or fibers move with it. This creates a clean, smooth product. The leftover pressed seeds form a hard cake that is removed from the machine, and the oil flows out into a separate container.

The heat generated in the oil extraction procedure can affect some materials in undesirable ways, and harder products like nuts generate more heat than softer products like fruits. To combat the extra heat, some users choose to cold-press certain materials by controlling the temperature in some way. They might use some additional chemicals or a centrifugal system to help draw the oils out without adding more pressure.

Uses of an Oil Extraction Machine

Oil extraction machines are very versatile. You can find different styles of oil extractors to accommodate various agricultural products, and the oils can be made into numerous items, like cooking oils, fragrances, cosmetics, soaps, pet food, biofuel, wood treatments and paint.

Some of the plant sources that work with oil extraction machines include:

• Seeds: Oils can come from seeds like cottonseed, sesame, hemp, sunflower, amaranth and canola. They're often used for cooking applications, but they can also be found in items like fuel and paint, making seed oil extractors very useful.
• Nuts: The nut harvesting industry can create oils from peanuts, almonds, hazelnuts, cashews and many other nuts. These tend to be more expensive than other oils because the extraction process is more challenging. They take more pressure to crack, usually require peeling and produce more heat than other products do. Nut oils are common in food and cooking, with some applications in cosmetics, too.
• Vegetables and fruits: Oil extracted from fruits and vegetables like olives, palm fruit and avocados are also used in cooking, as well as in biofuels, cosmetics and soaps. Citrus fruits like lemons and oranges can also be pressed and used in essential oils.
• Other plants: Leafier plants like chamomile, eucalyptus, oregano, patchouli and peppermint also release oils. These products are often used as essential oils and in items like cosmetics, candles, perfumes and soap. Many people use the essential oils themselves as fragrance and for purported health benefits. Oil can even be extracted from algae and used in biofuel and nutritional supplementation.

The amount of oil you get from each product can vary. Peanuts, for instance, have a high oil content of 45-52%, while hemp seeds contain about 25-30% oil. In some cases, the leftover materials generated from the extraction process are valuable, too. Canola meal is the material left after the oil is extracted from the seeds, and it is 38-42% protein. It also contains a good balance of amino acids, making it a popular additive for livestock feed. Oil extraction machines can help expand one product in many different avenues.

The price of oil products makes them a great way to potentially get more value out of crops. Many types of oils, especially those that are used in biofuels, have seen significant price increases. If you're looking for something else to do with a crop, such as new revenue channels or using up extra inventory, oil extraction could be a good option.

Parts of an Oil Extraction Machine

Oil extraction machines can come in several configurations, but here are some of the main components you'll typically find:

• Hopper: The hopper is a metal structure that funnels the raw material into the screw press.
• Screw press: The screw press is the powerhouse of the oil expeller. The screw shaft rotates within a cylindrical cage, pushing the material forward in a high-pressure chamber. Friction is generated between the material, the screw shaft, the feedstock and the press chamber itself.
• Gear reduction unit: The gear reduction unit, or gearbox, converts the speed and torque of the electric motor to the right settings for the machine.
• Slots or screens: A screening surface allows oils to seep out while keeping the leftover materials moving through the screw, where they press into a “cake” for removal.
• Frame: The metal frame provides the support for and connects these components.

You'll find various other parts in an oil extraction machine like lock nuts, rings, seals and gaskets that make up these larger components and link them together. These parts might be made of metals and elastomeric materials, both of which offer long-lasting durability in the tough, messy conditions of oil pressing.

Elastomeric Components for Oil Extraction Machines

Global Elastomeric Products creates a wide range of elastomeric products to support your oil-pressing machine operation. We produce a variety of tools, including custom rubber molding for the agricultural industry, and we can help you keep your equipment running smoothly or bring new machinery to life with custom rubber molding. Our company's ISO certification and in-house engineering allow us to build high-quality components for your unique needs.

To learn more about our custom rubber molding process and how we can assist with oil extraction equipment, please reach out to us with any questions or to request a quote.

Contact us to discuss your requirements of Walnut Oil Press. Our experienced sales team can help you identify the options that best suit your needs.