In the field of modern industrial automation, the stable operation of hydraulic system is the key to ensure the efficient operation of equipment. The DF series superimposed filter independently developed by Henan Xinxiang Lifeierte Filter Co., Ltd. provides a reliable guarantee for the precision control of hydraulic system with its innovative design and excellent performance. This filter not only effectively cleans hydraulic oil, but also significantly improves system response and equipment life by optimizing the installation structure, making it an ideal choice for automated control systems and servo systems.
Advantages
1.Innovative structure: compact design releases space value.
The DF Series stacked filters feature a modular stacked design that can be installed directly under the solenoid directional valve, eliminating the need for additional piping. This design breaks through the limitations of independent installation of traditional filters and integrates the filter unit with the valve body, significantly saving installation space. Its compact structure is not only suitable for new systems, but also for upgrading old equipment, especially for space-limited automated production lines. For example, in the hydraulic station of injection molding machinery, the superimposed design can save 30% of the installation area, providing more possibilities for equipment layout optimization.
2.Multistage filtration: precise interception of impurities and pollutants.
The filter has a built-in three-stage filtration system to form layers of progressive protective mesh: coarse filter layer: stainless steel metal mesh intercepts ≥100μm of large particles of impurities to prevent early wear; Fine filter layer: folding fiber filter element filters 5-30μm of small particles, to ensure smooth oil circuit; Deep adsorption layer: The special activated carbon material adsorbs the viscous pollutants such as gum and asphaltene produced by the oxidation of hydraulic oil to avoid the spool sticking.
Through three-stage synergies, DF series filters can stabilize the cleanliness of hydraulic oil within NAS Level 7 (international standard), effectively extending the life of hydraulic components by more than 2 times.
3.Intelligent monitoring: real-time early warning to improve maintenance efficiency.
DF pressure filter is equipped with differential pressure indicators and electronic sensors to monitor the blockage of the filter element in real time. When the filter pressure difference exceeds the set threshold, the indicator lamp automatically alarms, and the output signal through the PLC interface prompts the maintenance personnel to replace the filter element in time.

This intelligent monitoring function not only avoids filter failure due to filter element saturation, but also anticipates system contamination trends through data analysis for preventive maintenance. For example, after the application of DF filters in the hydraulic system of a metallurgical enterprise, the failure shutdown rate is reduced by 40% and the maintenance cost is reduced by 25%.
Application
1.Industrial automation: CNC machine tools, robot joint hydraulic system pollution control;
2.Construction machinery: anti-stuck protection of excavator and crane hydraulic valve; Energy equipment: high efficiency filtration of wind power variable pitch system and hydraulic pump station;
3.Precision manufacturing: ultra-clean guarantee for semiconductor equipment and hydraulic system of medical equipment. It is resistant to high pressure (up to 32MPa) and wide temperature adaptability (-20℃ to 80℃), ensuring stable operation under extreme conditions. Sustainable development:
4.Environmental protection and economy Liffert filters use recyclable filter element design, filter material replacement is convenient and environmentally friendly.

Compared to traditional filters, the DF series filter element life is extended by 50%, reducing replacement frequency and reducing waste disposal costs. At the same time, its optimized flow path design reduces the energy consumption of the hydraulic system, and the annual power saving of a single device can reach 15%-20%, which is in line with the trend of green manufacturing.
Conclusion
As an innovative solution for hydraulic system pollution control, DF series superimposed filters of Henan Xinxiang Lifeierte Filter Co., Ltd. solve the pain points of the industry with technological innovation and provide lasting and stable power support for automation equipment. Whether it is to improve production efficiency, reduce maintenance costs, or promote green manufacturing, this product shows outstanding application value. In the future, with the higher requirements for equipment reliability in Industry 4.0, DF series filters will continue to help various industries achieve intelligent and sustainable development.
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