Finding the Right Oil Press: A Guide to Peanut Oil Processing Machines for Small-Scale Producers

For small-scale peanut oil producers, choosing the right press isn't just about buying equipment—it's about defining your business. The right machine balances efficiency, oil quality, and cost, shaping everything from your daily output to your market appeal. Whether you're supplying local communities or targeting premium buyers, understanding your options is the first step to success.

Here's a breakdown of the three most common types of oil presses found in small processing plants, each with its own strengths.

1. The Workhorse: Screw Oil Presses

If you need reliable, continuous operation for moderate-scale production, the screw press (or expeller press) is likely your best match. It works by forcing peanut kernels through a rotating screw, mechanically squeezing out the oil.

Best for: Producers prioritizing steady output and automation.
Typical Daily Capacity: 5–20 tons of peanuts.
Oil Yield: Around 35–45%, depending on kernel quality.

The Bottom Line: It's efficient, requires less manual labor, and is a cost-effective choice for supplying broader markets. Keep in mind that the crude oil will need filtering, as it may contain some solids from the pressing process.

2. The Artisan Choice: Hydraulic Oil Presses

When oil purity, flavor, and nutrient retention are your top priorities, the hydraulic press shines. It uses controlled hydraulic pressure to squeeze oil from peanut meal in batches, a gentler process that generates less heat.

Best for: Craft or "cold-pressed" oil producers targeting premium, health-conscious, or local artisan markets.
Typical Daily Capacity: 1–5 tons (batch processing).
Oil Yield: A slightly higher 40–48%, with exceptional purity.

The Bottom Line: This method preserves the peanut's natural aroma and nutritional value beautifully, often requiring less filtration. The trade-off is a slower, batch-based process that may limit large-scale volume.

3. The All-in-One Solution: Integrated Pretreatment & Pressing Systems

Why stop at just pressing? Integrated systems combine cleaning, shelling, roasting, and pressing into one streamlined workflow. A common setup pairs a roasting machine with a screw press, preheating the peanuts to optimize oil flow and flavor.

Best for: Processors looking to maximize efficiency, consistency, and control over the entire production chain.
Key Advantage: Preheating (to 120–130°C) can boost oil yield by 3-5% and creates that beloved, rich roasted peanut aroma. It minimizes handling and ensures a uniform product.

The Bottom Line: While the upfront investment is higher, the gains in productivity, oil quality, and operational smoothness can quickly justify the cost for a growing business.

For many, the screw press offers the best balance to start. Those in niche markets may lean toward hydraulic presses, while integrated systems are the goal for scaling up efficiently.

A Final Note on Sourcing: Many reliable manufacturers, such as Henan Glory Company, offer these standard presses and even have overseas warehouse networks to support international customers. It's worth researching suppliers who can provide not just the machine, but also the technical support and parts you might need.

By carefully matching your equipment to your vision, you can build a small peanut oil processing operation that is both sustainable and competitive.

Where can I buy small scale palm oil refinery machine(1-20tpd)?

For small and medium-sized producers looking to turn crude palm oil into clear, stable, and market-ready edible oil, Henan Glory Company's batch type palm oil refinery machine offers the perfect balance of efficiency and flexibility. With capacities ranging from 1 to 20tpd, this refinery is designed to deliver high-quality refined palm oil while keeping operational costs manageable.

Why Choose a Batch Type Palm Oil Refinery Machine?

Unlike large continuous systems, batch type refining allows you to process oil in controlled, separate lots. This is especially useful if you work with multiple oil types—such as palm, soybean, sunflower, or peanut oil—and need to switch between them without downtime or cross-contamination. Whether you're starting with 1 TPD or scaling up to 20 TPD, batch systems give you the adaptability to meet changing market demands.

Four Key Steps to Purity and Quality

The batch refining process follows four essential stages, each targeting specific impurities in crude palm oil:

1) Degumming – Removes phospholipids and gums through hydration, preventing forming and discoloration during heating.

2) Deacidification – Uses alkali neutralization to eliminate free fatty acids (FFA), improving oil stability and shelf life.

3) Bleaching – Adsorbs unwanted pigments like chlorophyll and carotenoids using activated clay, resulting in a clearer, brighter oil.

4) Deodorization – Conducted under high-temperature vacuum distillation, this step removes odor-causing compounds. The deodorization tank, made from corrosion-resistant 304 stainless steel, ensures the oil does not re-oxidize, preserving its natural quality.

Together, these stages ensure that the final product meets national edible oil standards while retaining the oil's natural nutrients.

Tailored Heating Options for Different Scales

To suit various production needs, batch refinery machines come with two heating choices:
1) Electric Heating – Ideal for small workshops (0.5, 1, or 2 TPD), featuring all-stainless-steel construction and lower upfront investment.

2) Thermal Oil Heating – Recommended for larger outputs (1–20 TPD), this method uses a thermal oil furnace and coil system for energy-efficient, consistent heating of larger batches.

Eco-Friendly and Cost-Effective Design

Modern batch refineries are built with closed-system technology, minimizing exhaust emissions and reducing residue pollution. This not only helps you comply with environmental regulations but also lowers waste management costs.

Explore detailed specifications, customized configurations, and competitive pricing for batch type palm oil refinery machines (1-20 TPD). Contact Henan Glory Company today for a solution tailored to your production goals.

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Why Your Groundnut Oil Turns Cloudy or Smells Off—And How Refining Solves It

Are you a groundnut oil producer struggling with cloudy oil, unpleasant odors, or short shelf life? You're not alone. A common challenge many face is that freshly pressed crude oil becomes turbid or develops off-flavors within months. The root cause often lies not in the pressing itself, but in the missing step that guarantees quality: refining.

At Henan Glory, we understand that quality is what builds trust and grows your business. Let's break down how a dedicated groundnut oil refining machine transforms crude oil into a clear, stable, and market-ready product by removing specific impurities at each stage.

1. Degumming: Eliminating Turbidity

The cloudiness and sediment you see in stored crude oil are primarily caused by phospholipids. Customers reject cloudy oil, hurting your sales.

Our Solution: In our degumming process, crude oil is heated and stirred while a phosphoric acid solution is introduced. This causes phospholipids and other colloids to coagulate. After settling, these impurities are removed, resulting in a visibly clearer oil that stays stable on the shelf.

2. Deacidification: Ensuring Freshness & Longevity

Free Fatty Acids (FFA) are responsible for off-flavors and rapid spoilage, directly cutting into your profits.

Our Solution: Through a controlled reaction with an alkaline solution in our deacidification system, FFAs are neutralized and removed as soapstock. This crucial step significantly extends your oil's shelf life and ensures a clean, neutral taste.

3. Decolorization: Creating the Perfect Golden Hue

Crude groundnut oil's dark color, from natural pigments and oxidation, is less appealing to consumers who expect the attractive golden-yellow oil seen in stores.

Our Solution: Our decolorization process uses activated clay under precise heating and stirring to adsorb these pigments. The result is a consistently beautiful, market-favored color that enhances your product's visual appeal.

4. Deodorization: Delivering a Neutral, Pure Taste

Unwanted raw or burnt notes (often from pressing variations) can deter consumers. Modern buyers prefer a clean, neutral edible oil.

Our Solution: Our deodorization pot operates in a high-temperature vacuum. This steam-strips all volatile odor compounds without oxidizing the oil, guaranteeing a bland, pure flavor profile that meets consumer expectations.

Scalable Solutions for Your Growth

Our batch refining systems are ideal for plants processing under 20 tons daily. As you expand, the system can be upgraded to a semi-continuous setup (e.g., with a continuous deodorization tower), boosting capacity to 30 tons/day with better efficiency.

For large-scale operations exceeding 30 tons daily, we provide fully continuous, automated refining lines designed for maximum throughput and consistent, premium quality.

Invest in the quality that builds your brand. If you're facing issues with oil clarity, shelf life, color, or odor—or if you're planning a new or upgraded your peanut oil refining line—let's connect.

Contact us for more details
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