Types of oil purifiers for construction machinery

Special oil purifiers for construction machinery are mainly used to filter and purify hydraulic oil, lubricating oil, gear oil and other oil products, remove pollutants such as moisture, impurities, and gas, and extend the service life of equipment. According to different working conditions and needs, common types include:

Portable oil filter

- Features: small size, light weight, easy to carry, suitable for on-site maintenance.

- Use: Suitable for daily oil maintenance of construction machinery (such as excavators, loaders, cranes, etc.).

- Filtration accuracy: usually 1-10μm, can remove particulate matter and a small amount of moisture.

High-precision oil filter

- Features: using multi-layer filter elements or polymer materials, high filtration accuracy (up to 0.1-1μm).

- Use: Suitable for hydraulic systems or precision machinery with high requirements for oil cleanliness.

- Function: can remove tiny particles, colloids, oxides, etc.

Vacuum oil filter

- Features: using vacuum dehydration technology to efficiently remove moisture and gas in oil.

- Application: Suitable for oil products that are damp or have a high water content (such as hydraulic oil treatment for construction machinery after heavy rain).

- Advantages: Fast dehydration speed, no secondary pollution to the oil products.

Centrifugal oil filter

- Features: Separates impurities and water through centrifugal force, no filter element required, simple maintenance.

- Application: Suitable for oil products with more impurities or higher viscosity (such as gear oil, heavy-duty engine oil).

- Disadvantages: The filtering effect on tiny particles is slightly inferior to that of the high-precision oil purifier.

Electrostatic oil filter

- Features: Uses an electrostatic field to adsorb tiny particles and colloidal substances.

- Application: Suitable for old oil that has not been replaced for a long time or severely oxidized oil products.

- Advantages: It can extend the service life of oil products and reduce the generation of waste oil.

Multifunctional oil filter vehicle

- Features: It integrates filtration, dehydration, degassing, and refueling, and has comprehensive functions.

- Application: Suitable for the maintenance of large-scale construction machinery or centralized lubrication systems.

- Typical applications: regular maintenance of construction sites and mining equipment.

Explosion-proof oil filter

- Features: explosion-proof design, in line with safety standards.

- Application: suitable for flammable and explosive environments (such as engineering machinery in the petrochemical field).

Selection suggestions:

- Oil type: Hydraulic oil uses a high-precision or vacuum oil filter, gear oil uses a centrifugal type.

- Pollution degree: The vacuum type is used when the water content is high, and the centrifugal or high-precision type is used when there are many particles.

- Working environment: outdoor portable is preferred, and an explosion-proof type is used in explosion-proof areas.

Notes:

- Regularly ｒｅｐｌａｃｅ the filter element or clean the centrifugal rotor.

- Check whether the oil is seriously deteriorated before filtering (such as blackening, coking, and oil change is required).

Selecting a suitable oil purifier according to specific needs can significantly improve the reliability and economy of engineering machinery.