The Plate Frame Filter is one of the most widely used solid–liquid separation equipment in edible oil refining. It is designed to remove impurities, suspended particles, and trace solids from crude or semi-refined oil, ensuring that the final product meets food-grade quality standards. Due to its simple structure, reliable operation, and excellent filtration performance, this equipment is extensively applied in small to medium-scale cooking oil refining plants, as well as in pilot laboratories and specialty oil processing lines.

In the edible oil industry, filtration is a crucial step that directly affects oil clarity, taste, and storage stability. By adopting a Plate Frame Filter, producers can efficiently improve oil quality, reduce downstream refining costs, and ensure compliance with international food safety regulations.

Technical Parameters

(The following parameters are for reference. Specific models can be designed according to processing capacity and customer requirements.)

• Filtration pressure: 0.3 – 0.6 MPa
• Filtration temperature: up to 100°C
• Plate size range: 320 × 320 mm to 800 × 800 mm
• Filtration area: 1 m² – 60 m²
• Suitable capacity: from small-scale refining plants (5–10 TPD) to medium refining lines (up to 100 TPD)

Key Features of Plate Frame Filter Machine

Efficient Impurity Removal – Effectively removes suspended solids, pigments, and residual catalyst particles from edible oil.

Simple & Reliable Structure – The equipment is made of filter plates, frames, and cloths, ensuring easy assembly and maintenance.

Customizable Filtration Precision – Different filter cloths and pressure adjustments allow for varied levels of filtration accuracy.

Durable Construction – Built with high-quality materials that withstand high pressure and long-term operation.

Easy Operation & Cleaning – Filter cake discharge and cloth replacement are straightforward, making daily use convenient.

Cost-Effective – Compared with automatic filters, the Plate Frame Filter has a lower investment cost while still achieving high-quality results.

Wide Oil Compatibility – Suitable for almost all common edible oils, as well as specialty oils in food, pharmaceutical, and cosmetic industries.

Application in Oil Refining Process

The Plate Frame Filter is typically used in the refining section, after degumming, neutralization, or decolorization, where fine impurities or residual materials need to be removed. Its most common applications include:

1. Neutralization Stage – Removes soapstock and fine suspended matter formed during alkali refining.
2. Decolorization Stage – Filters out bleaching earth particles and other solids to ensure high oil clarity.
3. Pre-Deodorization Stage – Provides additional polishing filtration to enhance deodorization efficiency.

In smaller refining units, the Plate Frame Filter can serve as the primary filtration equipment, while in larger industrial plants, it is often used as an auxiliary filter to complement automatic or continuous filters.

Its versatility and adaptability make it a preferred choice for small and medium-capacity oil mills that require affordable yet effective solutions for producing high-quality edible oil.