China factory Tractors Engine Hydraulic Oil Filter 2427003110 for Excavator part

hydraulic filter

The hydraulic filter element is used in the hydraulic system to filter out the particles and rubber impurities in the system to ensure the cleanliness of the hydraulic system.

Features

1. It is divided into high pressure section, medium pressure section, oil return section and oil suction section2. It is divided into high, medium and low precision grades. 2-5um is high precision, 10-15um is medium precision, 15-25um is low precision.

Hydraulic filter element diagram

Hydraulic filter element diagram
3. In order to compress the dimensions of the finished filter element and increase the filter area, the filter layer is generally folded into a corrugated shape, and the pleated height of the hydraulic filter element is generally below 20mm.

4. The pressure difference of hydraulic filter element is generally 0.35-0.4MPa, but individual special filter elements are required to withstand high pressure difference, and the highest requirement is to withstand 32MPa, or even 42MPa equivalent to the system pressure.

5. The maximum withstand temperature, some require up to 135 ℃

product requirement
1. Strength requirements, production integrity requirements, withstand pressure difference, bear installation external force, bear pressure difference alternating load

2. Requirements for smoothness of oil passage and flow resistance characteristics

3. Resistant to a certain high temperature, compatible with the working medium

4. The fibers of the filter layer cannot be displaced and fallen off

5, to carry more dirt

6. Normal use in high altitude and cold areas

7. Fatigue resistance, fatigue strength under alternating flow

8. The cleanliness of the filter element itself must meet the standard

Replacement time of hydraulic filter element:

Hydraulic excavators generally need to be replaced after 2000 hours of operation, otherwise the system will be polluted and cause system failure. According to statistics, about 90% of hydraulic system failures are caused by system pollution.

In addition to checking the color, viscosity, and smell of the oil, it is also necessary to check the oil pressure and air humidity. If you work in a higher altitude and lower temperature environment, you must also pay close attention to the carbon content, colloid (olefin) and sulfide in the engine oil, as well as the impurities, paraffin and moisture content in the diesel.

In special cases, if the machinery uses low-grade diesel (sulfur content in diesel oil is 0.5%~1.0%), the diesel filter and machine filter should be replaced every 150h; if the sulfur content is above 1.0%, the diesel filter and filter should be replaced every 60h. Machine filter. Use crushers, vibratory rammers and other equipment that have a large load on the hydraulic system. The replacement time of the hydraulic oil return filter element, pilot filter element and respirator filter element is every 100h.

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XINGTAI MILESTONE MACHINERY TECHNOLOGY CO.,LTD
(Exported company of Hebei Bossa Group CO., LTD)

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