What Types of Crude Palm Oil Filter Machine Can Be Chosed?

What Types of Crude Palm Oil Filter Machine Can Be Chosed?

After extraction via pressing, crude palm oil (CPO) often contains fiber fragments, pulp residue, moisture, and other mechanical impurities. These impurities not only compromise the oil’s quality and storage stability but also adversely affect subsequent palm oil refining processes. Therefore, selecting the appropriate filtration equipment is crucial. Drawing on the products and technology of Henan Huatai Cereals & Oils Machinery Co., Ltd., this article systematically introduces the mainstream types of CPO filter machine currently on the market to help you make informed choices based on their specific needs.

1. Plate-and-Frame Filter

The plate-and-frame filter is one of the most traditional and widely used filtration devices in palm oil processing. It operates by utilizing filtration chambers formed by an alternating arrangement of filter plates and frames; under pressure, solid impurities in the crude oil are trapped on the surface of the filter cloth, while the clarified oil passes through the cloth and flows out.

The standout advantages of the plate-and-frame filter include its compact structure, small footprint, and large filtration area. It effectively removes coarse particles—such as fibers and kernel shell fragments—from the crude palm oil, resulting in a cleaner product. In small-scale palm oil pressing lines, it is often paired with the oil press to achieve single-stage filtration of the crude oil. For small and medium-sized palm oil mills with limited budgets, the plate-and-frame filter press offers excellent cost-effectiveness.

Among the filtration equipment offered by Huatai Oil Machinery, the plate-and-frame filter press is primarily used for filtering mechanically pressed crude oil and decolorized oil; it is also suitable for solid-liquid separation in the chemical, pharmaceutical, and food industries. Characterized by low labor intensity, high-quality filtered oil, low residual oil content in the filter cake, rapid residue discharge, and a high level of automation, it is an ideal filtration solution for medium- and large-scale palm oil mills.

2. Leaf Filter

The leaf filter (also known as an automatic residue-discharge filter) is a highly efficient piece of equipment indispensable to palm oil refining and fractionation processes. It features a structure comprising multi-layer stainless steel filter leaves housed within a fully enclosed pressure vessel, achieving solid-liquid separation by trapping solid impurities on the filter leaves.

Leaf filters are particularly well-suited for applications such as post-bleaching filtration for crude palm oil, refined palm oil, palm olein, and palm stearin, catalyst particle capture, and final product polishing/purification . These automatic discharge leaf filters are available in various models, with filtration areas flexibly customized to meet specific production capacities. The main body and product-contact parts can be constructed from 304 or 316L stainless steel, offering resistance to acids, alkalis, and high temperatures to suit diverse operating conditions.

The core advantages of leaf filters include superior filtration performance and mechanical discharge capabilities, which significantly reduce labor intensity; furthermore, parallel operation of two units enables continuous production. Additionally, the automatic discharge function addresses common challenges in the oil industry, such as the difficulty of filtering crude oil and discharging residues.

3. Vacuum Filters

Vacuum filters utilize negative pressure as the driving force for filtration and are ideal for scenarios requiring high oil quality. The continuous belt vacuum filter is a key choice in the dry fractionation process for palm oil.

Vacuum filters are characterized by their ability to perform continuous operations while simultaneously providing degassing and dehydration functions. During the clarification and filtration stage of crude palm oil, these filters effectively remove moisture and gases, thereby enhancing the quality of the crude oil.

In its complete palm oil processing lines, Huatai Oil Machinery integrates filtration stages with disc-stack centrifugal separators to achieve highly efficient crude oil clarification. Their complete palm fruit oil extraction systems cover the entire production process, from sorting, sterilizing, and pressing to crude oil filtration.

4. Membrane Filtration Equipment

Membrane filtration is an emerging separation technology in the oil processing sector. In palm oil processing, microfiltration membrane equipment can be used for the degumming of crude palm oil, effectively separating out phospholipids and other mucilaginous substances.

Huatai Oil Machinery employs advanced membrane filters in its palm oil fractionation processes, enabling efficient separation of solid and liquid fractions. When combined with precise automatic temperature control software, the membrane filtration equipment ensures stable and reliable fractionation results. The advantages of membrane filtration technology include high separation precision, low operating temperatures, and the elimination of the need for chemical filter aids, making it an environmentally friendly filtration method.

5. Membrane Filter Press

The membrane filter press is an advanced filtration unit used in the dry fractionation process of palm oil. Building upon the design of traditional filter presses, it employs a membrane to apply secondary pressure to the filter cake, thereby significantly enhancing solid-liquid separation efficiency.

During palm oil fractionation, the membrane filter press delivers excellent separation results, yielding harder palm stearin and increasing the recovery rate of palm olein (liquid oil). The equipment integrates advanced technologies—such as a variable-chamber membrane pressing system, a convertible open/closed filtrate discharge system, a hot oil washing system, an air blow-back system, and an electrostatic guidance system—to shorten fractionation cycles, boost production efficiency, and significantly improve liquid oil yields.

6. Huatai Oil Machinery: One-Stop Palm Oil Filtration Solutions

Founded in 1988, Henan Huatai Cereals & Oils Machinery Co., Ltd. is a large-scale enterprise integrating R&D, design, manufacturing, and installation of grain and oil machinery, boasting over 38 years of industry experience.

In the palm oil processing sector, Huatai provides complete equipment sets covering the entire process—from fresh fruit bunch (FFB) reception, sterilization, and threshing to pressing, crude oil clarification, and filtration. Its core business encompasses 28 categories of equipment, forming a comprehensive oil refining technology system, with products exported to more than 70 countries and regions.

7. Summary and Selection Recommendations

Different types of crude palm oil filter machine are suited to specific operational scenarios; therefore, the following factors should be comprehensively considered during equipment selection:

Leveraging 38+ years of industry expertise and continuous technological innovation, Henan Huatai Cereals & Oils Machinery Co., Ltd. offers customized filtration solutions—ranging from standalone units to intelligent production lines—for palm oil processing enterprises of all scales. Whether you are a startup or a large-scale oil processing group, Huatai can provide the ideal equipment and capacity solutions to meet your needs.

For further information on selecting crude palm oil filtration equipment, please contact us for professional technical consultation and solution design services.

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