Sunflower oil processing plant: capacity, process, equipment and project planning guide

Setting up a sunflower oil processing plant requires more than selecting an oil press. The right configuration depends on the available sunflower seeds, target processing capacity, required oil recovery, final product quality, utilities and the overall project scope.

Based on its experience in sunflower oil processing projects, Henan Glory provides equipment and process solutions for different sunflower oil production capacities and final product requirements. This guide takes you through the plant stage by stage — capacity, extraction process, equipment, refining and dewaxing — so you can define a complete project scope before investing in hardware.

The Sunflower Oil Production Line at a Glance

A sunflower oil processing plant is not a single machine but a connected sequence of stages, from sunflower seed intake to bottled edible oil. Because each stage feeds the next, a well-designed plant is planned as one integrated line before individual machines are selected:

Sunflower seeds → Cleaning → Dehulling & flaking → Conditioning → Oil extraction (mechanical pressing or solvent extraction) → Crude oil filtration & storage → Refining (degumming → deacidification → bleaching → deodorization) → Dewaxing → Filling & packaging

Within this line, three decisions shape the entire project: how much you process per day, how you extract the oil, and what quality of finished oil you sell. Each decision is covered in turn below, together with the equipment that follows from it.

Complete sunflower oil processing process

Capacity: How Big Should Your Sunflower Oil Plant Be?

Capacity is the first decision because it drives equipment size, building layout, utility demand and investment. There is no single capacity that suits every sunflower oil project: in practice, the plant size should be determined by the available sunflower seed supply, expected annual operating volume, investment level and the required degree of automation.

In typical sunflower oil projects, Henan Glory provides processing solutions across the following capacity ranges:

Note: These ranges are indicative. A project at a boundary capacity (e.g., 20 or 50 TPD) can be engineered toward either adjacent configuration depending on automation level, seed supply and expansion plans — Henan Glory will confirm the most suitable option during process design.

Once capacity is fixed, the next decision is how the oil will be extracted — the process route.

Process: Choosing Between Mechanical Pressing and Solvent Extraction

Neither mechanical pressing nor solvent extraction is universally better. The appropriate choice depends on the required oil recovery, plant capacity, investment level and operating conditions.

Mechanical pressing extracts oil from prepared sunflower seeds using a screw oil press, with no chemical solvents involved. It is often the practical starting point for smaller projects: the process flow is relatively simple, operation and maintenance are easier, no solvent recovery section is required, and the initial investment is lower than for a complete solvent extraction plant.

Mechanical sunflower oil press machine

Solvent extraction takes over where pressing stops. Seeds are first pressed mechanically to recover the major portion of the oil; the remaining oil stays in the press cake, which is then sent to the solvent extraction section for further recovery. Under appropriate operating conditions in typical sunflower oil projects, the residual oil content of the extracted meal can be reduced to below 1%. The main advantage is higher overall oil recovery; the trade-off is that the plant requires additional processing equipment, utilities, safety systems and operating controls.

Solvent extraction is therefore more worth considering when:

(1) Oil recovery is a major economic priority

(2) The plant has relatively high annual utilization

(3) The project can support the additional capital and operating requirements

Sunflower seed solvent extraction equipment

Henan Glory can provide mechanical pressing and solvent extraction configurations from 1 to 2,000 TPD, with the process selected according to the project's capacity, raw material characteristics, oil recovery requirements and investment conditions.

Mechanical Pressing vs. Solvent Extraction

Note: Exact residual oil values depend on seed quality, moisture and pressing configuration. If your project requires a quantified comparison, Henan Glory can provide expected residual-oil targets based on your specific raw material during process design.

Equipment: What Does a Sunflower Oil Processing Plant Need?

The sunflower oil processing equipment configuration follows directly from the selected extraction method, processing capacity and final product requirements. Because seed handling and oil extraction are needed in every plant, most equipment sections are shared across configurations; solvent extraction adds one dedicated section of its own.

D.T.D.C. (Desolventizer–Toaster–Dryer–Cooler): the system that removes residual solvent from the extracted meal after solvent extraction, making the meal safe and stable for use as animal feed.

When planning sunflower oil processing equipment, work from the process flow first — the equipment list should be developed from the line as a whole, rather than selecting individual machines independently.

Sunflower oil processing plant equipment

Refining & Dewaxing: How Does Crude Sunflower Oil Become Edible Oil?

Crude sunflower oil obtained from mechanical pressing or solvent extraction normally cannot be sold directly as edible oil. It still contains free fatty acids, phospholipids, pigments, waxes and odor compounds, so the decision on final product quality determines whether refining and dewaxing sections are built into the plant.

The four refining stages

Together these stages are expressed as: Degumming → Deacidification → Bleaching → Deodorization, and they improve the color, stability, odor and overall quality of the finished oil.

Sunflower oil refining process

Why dewaxing matters for sunflower oil

Sunflower oil contains natural waxes that can cause cloudiness or haze when the oil is stored or used at lower temperatures. Dewaxing uses controlled cooling, crystallization and filtration to separate these waxes and improve the clarity and low-temperature appearance of the finished sunflower oil.

Without dewaxing, bottled sunflower oil can turn cloudy after a short time on a cool shelf — a visual defect that consumers often read as a sign of poor quality. For any project intended to produce clear, packaged edible sunflower oil, dewaxing is therefore an important part of the overall refining configuration.

Sizing the refining and dewaxing section

The refining system should be matched to the required production capacity, final product quality and level of automation.

Note: The capacity ranges may overlap (e.g., 5–20 TPD) because the same throughput can be delivered as batch or semi-continuous refining — the choice depends on automation requirements, labor costs and investment budget.

Henan Glory provides sunflower oil refining and dewaxing solutions for different processing capacities. After refining and dewaxing, the finished oil can be transferred to storage and then sent to the filling and packaging section according to the final packaging requirements.

Sunflower oil refinery project site photo

Sunflower Oil Projects by Henan Glory

Henan Glory has supplied sunflower oil processing and related equipment for projects in different countries and at different production scales. The following reference projects illustrate how the capacity, process and equipment decisions above are applied in practice:

These projects cover key stages of sunflower oil production, including extraction, refining and finished-oil filling.

Planning a Sunflower Oil Processing Plant?

The right sunflower oil processing configuration depends on your target capacity, sunflower seed characteristics, extraction method, final product requirements and available infrastructure. Share these project basics with Henan Glory — our engineering team will evaluate the appropriate process flow and equipment scope and respond with a tailored proposal.

Planning a Sunflower Oil Processing Plant? 

The right sunflower oil processing configuration depends on your target capacity, sunflower seed characteristics, extraction method, final product requirements and available infrastructure. Share these project basics with Henan Glory — our engineering team will evaluate the appropriate process flow and equipment scope and respond with a tailored proposal.