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  • 2025-12-09

Working principle and advantages of Jingzi Xingchan precision filter

(1) Operating principle
Filtration process
Fluid input: Metalworking fluid or cleaning fluid enters the pressurized tank through the coolant inlet valve and undergoes precise filtration through multiple layers of filter cloth on the surface of the filter element (body) (the accuracy can reach 1-5 μm according to requirements).
Impurity retention: The filter cloth captures impurities such as metal particles and grinding sludge in the liquid through a dual action of physical (particle size screening) interception and electrostatic adsorption (special coating on the filter cloth). The clean liquid flows back to the processing equipment for recycling through the coolant outlet valve.
Backwash mechanism
Triggering condition: When the pressure inside the tank is ≥ 0.2 MPa or the flow rate decreases, the system initiates a backwash procedure reminder, enabling one-click backwash (or supporting manual triggering).
Air backwash: Close the inlet/outlet valves, open the backwash air supply valve (0.2MPa compressed air) and the backwash outlet valve. High-pressure airflow reversely penetrates the filter cloth, stripping off attached impurities. The dirt is discharged through the grinding silt discharge valve to the recycling device.
Self-cleaning effect: The removal rate of single backwashing is ≥85%, and the lifespan of the filter cloth is extended to 1.5-2 years.
Quick reset: After the backwash is completed, the valve automatically resets to the filtering state, ensuring continuous operation.
Emissions and maintenance
In case of long-term shutdown or when the filter cloth reaches the end of its lifespan, drain the liquid from the tank through the coolant drain valve, remove the filter element, and replace the filter cloth (a single person can complete this operation in just 5-10 minutes).

(2) Equipment advantages
High precision and stability
NAS Level 6 Certification: Utilizing filter cloths of various specifications, such as S-1045M90 (1μm), it can capture 99.9% of ultra-hard particles, significantly enhancing machining precision (tool life is extended by over 2 times).
Low pressure loss design: Optimized fluid path, with resistance reduced by 40% and energy consumption saved by 30% (measured on model K-1-500).
Intelligentization and automation
Fully automatic backwashing: Supports timing or pressure triggering, with a filter cloth reuse rate of 80%, reducing operation and maintenance costs by 50%.
Centralized control system: Optional for multi-device use (maximum processing capacity of 5000L/min), suitable for large-scale production lines.
Intelligent monitoring system: Equipped with built-in flow/pressure sensors and LED status lights, it provides real-time feedback on the degree of filter cloth blockage (green/yellow/red three-color warning), accurately guiding maintenance intervals.
Durability and ease of maintenance
Long-life structure: SUS304 stainless steel tank body + filter element + fluororubber seals, resistant to high temperatures up to 70°C and corrosive media, with a design lifespan exceeding 10 years.
Modular design: The filter cloth and filter cartridge are of a separate structure, requiring no professional tools for replacement; the mobile base (equipped with universal wheels) supports rapid deployment.
Safety redundancy design: Dual safety pressure release mechanism: In addition to automatic backwashing, the mechanical safety valve forces pressure relief when the pressure is ≥0.28 MPa, preventing the tank from being overloaded.
Environmental protection and economy
Waste liquid recovery system: Centralized treatment of backwash waste liquid (optional), compliant with ISO 14001 standards, reducing environmental pollution.
Low-cost operation and maintenance: The annual consumption of filter cloth is reduced by 60%, and the equipment is backed by a 1-year warranty, resulting in a comprehensive cost that is 35% lower than the industry average.
safety compliance
Multiple protection mechanisms: automatic shutdown in case of pressure overload, grounding protection, and residual current circuit breaker, strictly adhering to JIS B 8471 industrial safety standards.