There are many types of industrial oil filtration devices. According to the filtration principle, application scenario and oil characteristics, they can be mainly divided into the following categories:

Classification by filtration principle

(1) Mechanical filtration equipment

- Plate and frame oil filter

- Intercepting particulate impurities through filter paper/filter cloth

- Applicable to: high viscosity oil or oil containing a large amount of mechanical impurities (such as gear oil, rolling oil)

- Bag filter

- Use non-woven filter bags for filtration, easy to ｒｅｐｌａｃｅ

- Applicable to: Pre-filtration of lubricating oil and hydraulic oil

- Filter element filter

- Use metal mesh, glass fiber and other filter elements

- Applicable to: Online filtration of precision hydraulic systems

(2) Vacuum separation equipment

- Vacuum oil filter

- Through negative pressure dehydration and degassing, combined with precision filtration

- Applicable to: Insulating oil and light oil such as transformer oil and turbine oil

- Two-stage vacuum oil filter

- Two-stage vacuum tank, higher dehydration efficiency

Applicable to: Emulsified oil with extremely high water content

(3) Centrifugal separation equipment

- Centrifugal oil filter

- Uses centrifugal force to separate water and impurities

- Applicable to: Cutting fluid, heavily contaminated heavy oil

(4) Adsorption purification equipment

- Silica gel/molecular sieve oil filter

- Removes acidic substances and trace water through adsorbents

- Applicable to: Regeneration of aged transformer oil

- Electrostatic oil filter

- Adsorbs submicron particles using an electrostatic field

- Applicable to: Ultra-clean hydraulic oil

2. Classification by oil application

|                  Oil type                   |         Recommended filtering equipment          |

|----------------------------------|----------------------------------------------------|

| Transformer oil/insulating oil  | Vacuum oil filter, regeneration oil filter             |

| Turbine oil (steam turbine oil) | Vacuum oil filter, centrifugal oil filter                 |

| Hydraulic oil                            | Precision filter element, electrostatic oil filter    |

| Gear oil/heavy engine oil        | Plate and Frame Oil Filter, Centrifugal Oil Filter |

| Cutting Fluid/Emulsified Oil    | Coalescing Separator, Magnetic Filter                |

3. Classification by Functional Characteristics

- Mobile Oil Filter: Wheeled design, suitable for on-site maintenance

- Online Oil Filter: Real-time circulating filtration to protect critical equipment

- Explosion-proof Oil Filter: For hazardous environments such as petrochemicals and coal mines

- Regenerative Oil Filter: Reduces acid value and restores oil performance

4. Special Filtration Technologies

- Coalescing Separation Technology: Demulsification and dehydration (e.g., lubricating oil with water content > 1000 ppm)

- Low-Temperature Vacuum Technology: Processing heat-sensitive oils (e.g., certain synthetic oils)

- Magnetic Filtration: Removal of ferromagnetic particles (e.g., rolling mill oil)

Key Selection Parameters

- Filtration Fineness: 1μm (precision hydraulic systems) to 50μm (coarse filtration)

- Flow rate: 5L/min (small) to 500L/min (industrial grade)

- Temperature range: -20°C (low-temperature oil) to 120°C (high-temperature oil)

If you require recommendations for specific oils or scenarios, please provide detailed operating requirements (such as oil type, contamination level, and flow rate requirements).