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A global manufacturing supplier specializing in comprehensive solutions for food processing projects
+86 0536 6063 199
+86 159 0802 8606
China Shandong Weifang No. 777, Changzhan Road, High-Tech Zone
The TCA Pressure Oil Filter is a high‑efficiency oil purification equipment specially designed for continuous frying lines, widely used in the production of potato chips, french fries, nuts, puffed snacks and prepared foods. The equipment operates on the closed‑pressure filtration principle. A pre‑coat layer (using filter aids such as diatomaceous earth or perlite) is formed on the filter screen, and the pressure difference traps fine particles, carbonized residues, free fatty acids and other impurities in the filter cake, producing crystal‑clear, purified frying oil. This effectively extends the service life of the frying oil and improves the color and taste of the finished products.
All oil‑contact parts are made of food‑grade SUS304 stainless steel, equipped with high‑temperature resistant seals and pressure safety devices. The machine is easy to operate with high filtration efficiency, and can be configured with manual or automatic back‑washing and automatic discharge functions as required. The TCA Pressure Oil Filter is a core auxiliary equipment for fried food enterprises to achieve in‑line oil circulation purification, reduce oil consumption and enhance product quality.
Working Principle
The TCA Pressure Oil Filter operates with a closed filter vessel structure. Before filtration, a mixture containing filter aid (diatomaceous earth, perlite, etc.) is circulated by a pump into the filter vessel to form a uniform pre‑coat layer on the filter screen. The pre‑coat protects the screen from clogging by fine particles and provides a stable filtration rating.
Hot frying oil from the fryer is pressurized by a circulation pump and enters the filter vessel. The oil passes through the screen and the pre‑coat layer, while solid impurities (frying debris, carbonized residues, flocs, etc.) are trapped on the surface of the pre‑coat. As filtration proceeds, the filter cake thickens, and the filtered oil continuously flows out through the discharge pipe and returns to the fryer or oil storage tank.
When the filter cake reaches a certain thickness and the pressure rises to a preset value, the machine stops filtration and performs discharge or back‑washing operations (depending on the configuration). Some models are equipped with automatic vibrating discharge or pneumatic discharge devices to quickly remove the filter cake from the screen surface, completing one filtration cycle. The entire filtration process is carried out within a closed vessel, with no oil vapor leakage, ensuring safety and environmental protection.
| Component | Material | Function Description |
|---|---|---|
| Filter vessel | SUS304 stainless steel | Vertical or horizontal pressure vessel containing multiple filter screens or plates |
| Filter screen / plate | SUS304 stainless steel | Multi‑layer sintered mesh or fabric‑backed plate; filtration rating customizable (5‑100μm) |
| Pre‑coat circulation system | SUS304 stainless steel + auxiliary mixing tank | Mixes filter aid with water or oil and applies a uniform pre‑coat on the screen |
| Oil pump | High‑temperature SUS304 stainless steel pump | Conveys used frying oil to the filter vessel and provides the required filtration pressure |
| Pressure control system | Pressure gauge + pressure sensor + safety valve | Monitors internal pressure in real time; can automatically stop or relieve pressure in abnormal conditions |
| Discharge system | Pneumatic/electric vibrating or scraping device | Removes filter cake from screen surface after filtration to achieve automatic discharge (optional) |
| Back‑washing system (optional) | SUS304 stainless steel | Removes fine impurities lodged in screen pores by reverse liquid flow |
| Piping and valves | SUS304 stainless steel | High‑temperature ball valves, check valves, etc., temperature resistant up to 200℃ |
| Control system | PLC + touch screen (optional) | Fully automatic control of filling, filtration, back‑washing, discharge, and stores multiple process recipes |
| Frame | SUS304 stainless steel | All‑stainless steel structure, corrosion resistant, easy to clean |
Technical Parameters
| Model | Filtration Area (m²) | Capacity (L/h) | Working Pressure (MPa) | Working Temp (℃) | Filtration Rating (μm) | Total Power (kW) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| TCA‑PF‑5 | 5 | 2000‑3000 | 0.2‑0.5 | ≤180 | 10‑50 | 2.2 | 1200×800×1800 | 400 |
| TCA‑PF‑10 | 10 | 4000‑6000 | 0.2‑0.5 | ≤180 | 10‑50 | 3.0 | 1500×1000×2000 | 650 |
| TCA‑PF‑15 | 15 | 6000‑9000 | 0.2‑0.5 | ≤180 | 10‑50 | 4.0 | 1700×1100×2200 | 850 |
| TCA‑PF‑20 | 20 | 8000‑12000 | 0.2‑0.5 | ≤180 | 10‑50 | 5.5 | 1900×1200×2400 | 1100 |
| TCA‑PF‑30 | 30 | 12000‑18000 | 0.2‑0.5 | ≤180 | 10‑50 | 7.5 | 2200×1400×2600 | 1500 |
| TCA‑PF‑40 | 40 | 16000‑24000 | 0.2‑0.5 | ≤180 | 10‑50 | 11 | 2500×1600×2800 | 2000 |
| TCA‑PF‑50 | 50 | 20000‑30000 | 0.2‑0.5 | ≤180 | 10‑50 | 15 | 2800×1800×3000 | 2500 |
Note: Processing capacity depends on oil viscosity and impurity content; different filter meshes available; working pressure and temperature can be adjusted per process; larger capacities custom‑built on request.
| Oil Type | Applicable Scenarios |
|---|---|
| Vegetable oils | Palm oil, soybean oil, rapeseed oil, sunflower oil, peanut oil, corn oil, etc. |
| Animal fats | Lard, beef tallow, chicken fat, and blended frying oils |
| Specialty frying oils | Oil specifically for french fries, puffed snacks, and prepared foods |
Impurity types：
Frying debris, breadcrumb fragments, coating particles, carbonized residues, flocs, free fatty acids, peroxides, pyrolyzed matter, polymers, etc.
Frequently Asked Questions
This machine is designed for processing a wide range of food raw materials. Depending on the specific model, it can handle fresh, chilled, or frozen materials within a defined size and moisture range. For optimal performance, we recommend confirming the raw material specifications before ordering.
The equipment is designed to handle potatoes of varying sizes. For certain processes such as cutting or peeling, adjustable settings or size grading solutions can be provided to ensure consistent output quality.
We provide customized solutions based on your factory layout, processing capacity, and production requirements. Our engineering team can assist with line design and technical planning.
Our solution service typically includes process analysis, equipment configuration, line layout drawings, operation guidance, and technical support. Upon request, we can also assist with installation guidance, commissioning, and operator training through online support.
We provide long-term after-sales support for complete processing lines, including technical consultation, troubleshooting assistance, spare parts supply, and system upgrade advice. Detailed operation manuals and maintenance guidelines are provided to ensure smooth daily operation.
READY TO START A PROJECT?
If you are interested in any of our products or would like to make your customized order, please feel free to contact us. We are looking forward to establish successful business relations with you.
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